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## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Project Status: Current project status: Ongoing, moderate activity Issues for the board: none ## Membership Data: Apache DataSketches was founded 2020-12-15 (4 years ago) There are currently 16 committers and 13 PMC members in this project. The Committer-to-PMC ratio is roughly 8:7. Community changes, past quarter: - No new PMC members. Last addition was Charlie Dickens on 2023-07-04. - No new committers. Last addition was Pierre Lacave on 2024-03-12. ## Project Activity: We are making good progress with our collaboration with Google and the creation of our apache/datasketches-bigquery repository that will be imported into the GoogleCloudPlatform/bigquery-utils repository soon. This repo contains "adaptors" that adapt key sketches from our datasketches-cpp (C++) library to javascript methods called directly by GCP/BQ SQL queries. We are also making progress on the conversion of our Java library so that it can operate with Java 17 and Java 21. ## Community Health: Our project is healthy. We have a small, loyal and growing community of users that contact us when they have questions or issues. We are experiencing growing interest from major corporations in our multi-language libraries. We continue to get interest from scientists around the world who offer ideas for new sketches for our library based on recent research.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Project Status: Current project status: Ongoing, moderate activity Issues for the board: none ## Membership Data: Apache DataSketches was founded 2020-12-15 (4 years ago) There are currently 17 committers and 14 PMC members in this project. The Committer-to-PMC ratio is roughly 9:7. Community changes, past quarter: - No new PMC members. Last addition was Charlie Dickens on 2023-07-04. - No new committers. Last addition was Pierre Lacave on 2024-03-12. ## Project Activity: Big News: Google BigQuery has agreed to support our DataSketches library in their github.com/GoogleCloudPlatform/bigquery-utils repo. This means that all BQ users will be able to use Apache DataSketches in their SQL queries. A dedicated apache/datasketches-bigquery repo has been set up for the development of adaptors that connect BQ/SQL to the datasketches-cpp (C++) library of sketches. No formal releases as of today, but will be soon. ## Community Health: Our project is healthy. We have a small, loyal and growing community of users that contact us when they have questions or issues. We are experiencing growing interest from major corporations and database platforms in our multi-language libraries. Of special interest is that our project is frequently referenced in scientific papers in the areas of streaming algorithms and sketches. In these papers the Apache DataSketches project is often referenced to as the most widely used and best known library of open-source sketches.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Project Status: Current project status: Ongoing Issues for the board: None ## Membership Data: Apache DataSketches was founded 2020-12-15 (3 years ago) There are currently 17 committers and 14 PMC members in this project. The Committer-to-PMC ratio is roughly 9:7. Community changes, past quarter: - No new PMC members. Last addition was Charlie Dickens on 2023-07-04. - Pierre Lacave was added as committer on 2024-03-12 ## Project Activity: We release a major new version of our Java library with several new sketches including an improved implementation of the well known T-Digest quantiles sketch and a high performing implementation of the well known Bloom Filter. The KLL sketches have new vector and weighted update capabilities and a new partitioning capability for very large data sets. Our Go library continues in development and our Python and C++ libraries received some new bug-fix releases. ## Community Health: Our project is healthy. We have a small, loyal and growing community of users that contact us when they have questions or issues. We are experiencing growing interest from major corporations in our multi-language libraries. Of special interest is that our project is frequently referenced in scientific papers in the area of streaming algorithms and sketches. In these papers the Apache DataSketches project is often referenced as the most widely used and best known library of open source sketches.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Project Status: Current project status: Ongoing Issues for the board: None ## Membership Data: Apache DataSketches was founded 2020-12-15 (3 years ago) There are currently 16 committers and 14 PMC members in this project. The Committer-to-PMC ratio is 8:7. Community changes, past quarter: - No new PMC members. Last addition was Charlie Dickens on 2023-07-04. - No new committers. Last addition was Will Lauer on 2022-03-07. ## Project Activity: We now have a separate repo for our Python library which largely parallels our C++ and Java libraries. The Python library started out as a sub-folder of the C++ repo, but it has grown and now it is large enough to be in its own repo. All of the Python code is backed by C++ for high performance. We also have in development a parallel GoLang library in development. This will be a valuable contribution to the overall codebase so that our users will be able to access our sketches in 4 languages: Java, C++, Python, and Go! During this period we released 2 new C++ versions, 2 new Python versions (in the new repo), and 2 new Java versions. ## Community Health: Our project is healthy. We have a small but loyal community of users that contact us when they have questions or issues. Of special interest is that our project is now frequently referenced in scientific papers in the area of streaming sketches. In these papers the Apache DataSketches project is often referenced as the most widely used and best known library of open source sketches (in the research community anyway!).
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Project Status: Current project status: Ongoing Issues for the board: None ## Membership Data: Apache DataSketches was founded 2020-12-15 (3 years ago) There are currently 16 committers and 14 PMC members in this project. The Committer-to-PMC ratio is 8:7. Community changes, past quarter: - No new PMC members. Last addition was Charlie Dickens on 2023-07-04. - No new committers. Last addition was Will Lauer on 2022-03-07. ## Project Activity: Releases in addition to the releases found by your Bot: C++ PostgreSQL Adapter 1.6.0, 2023-05-15 C++, Python Core 4.1.0, 2023-05-03 We were invited to present a talk at the Simons Institute (UC Berkeley) at their international conference on "Sketching and Algorithm Design", Oct 9-13, 2023. Our talk was titled "Insights from Engineering Sketches for Production and Using Sketches at Scale." This is important recognition that our work is becoming widely recognized, especially in the academic and research communities. We also presented a paper at the BigDataLDN 2023 conference in London, Sep 20 & 21, 2023. ## Community Health: Our project is healthy. We have a small but loyal community of users that contact us when they have questions or issues. Of special interest is that our project is now frequently referenced in scientific papers in the area of streaming sketches. In these papers the Apache DataSketches project is often referenced as the most widely used and best known library of open source sketches (in the research community anyway!).
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Project Status: Current project status: Ongoing. Issues for the board: None. ## Membership Data: Apache DataSketches was founded 2020-12-15 (3 years ago) There are currently 16 committers and 14 PMC members in this project. The Committer-to-PMC ratio is 8:7. Community changes, past quarter: - Charlie Dickens was added to the PMC on 2023-07-04 - No new committers. Last addition was Will Lauer on 2022-03-07. ## Project Activity: In addition to the 3 releases found by your bot, We have developed some new sketches for density analysis for Python as well as a wrapper for our Tuple sketch now available in Python mostly for experimental research. We are also starting a major overhaul of our website, which is clearly showing its age. We also took advantage of the suggestion from Matt Sicker & Chris Dutz and added their suggestions to our asf.yaml file. We are still learning what impact it has and will do the same on our other web sites over time. ## Community Health: Our project is healthy we have a small but loyal community of users that contact us when they have questions or issues. Of special interest is that our project is now frequently referenced in scientific papers in the area of streaming sketches. In these papers the Apache DataSketches project is often referenced as the most widely used and best known library of open source sketches (in the research community anyway!). We discovered recently that Microsoft was using our sketches extensively in their internal research and has been doing so for a number of years! We had no idea!
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention at this time. ## Membership Data: Apache DataSketches was founded 2020-12-15 (2 years ago) There are currently 16 committers and 13 PMC members in this project. The Committer-to-PMC ratio is roughly 8:7. Community changes, past quarter: - No new PMC members. Last addition was David Cromberge on 2021-09-22. - No new committers. Last addition was Will Lauer on 2022-03-07. ## Project Activity: As part of our releases (see project statistics): - A new Density Sketch and new Count Min Sketch have been released to our C++ Library along with their bindings in the Python Library. - Our Python sketch library has been extended so that all of our "container' type sketches (e.g., quantile, frequency sketches) can handle arbitrary objects, along with Python-defined comparators and combination policy logic where relevant. This brings the Python sketch library to full parity with the offerings in the C++ library. Charlie Dickens has been accepted at the Big Data LDN, Fall 2023 conference to present a paper about our Apache DataSketches project. Charlie has also been chosen as Industry Supervisor for a Master-of-Science summer project at a University in the UK, where the intention is for the students to develop a machine learning model using the new Count Min sketch. ## Community Health: The DataSketches project is healthy. Most of our interactions with users are through GitHub or through Slack. We are continuing to work with some of the largest cloud providers on adoption of our library. We are also working closely with the Java Project Panama. We are also seeing some interest in our technology from government agencies, including international agencies.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention at this time. ## Membership Data: Apache DataSketches was founded 2020-12-15 (2 years ago) There are currently 16 committers and 13 PMC members in this project. The Committer-to-PMC ratio is roughly 8:7. Community changes, past quarter: - No new PMC members. Last addition was David Cromberge on 2021-09-22. - No new committers. Last addition was Will Lauer on 2022-03-07. ## Project Activity: We were invited to make a presentation to one of the top-three cloud providers about our project. And we are in discussion with two other top cloud providers about adopting our technology for broad use by their customers. Unfortunately, this is a long and slow process. We have also decided to refactor our website to be more focused on the Python user communities since Python is so widely used by the scientific communities. ## Community Health: The DataSketches project is healthy. Most of our interactions with users are through GitHub or through Slack. We are continuing to work with some of the largest cloud providers on adoption of our library. We are also working closely with the Java Project Panama. We are also seeing some interest in our technology from government agencies, including international agencies.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention at this time. ## Membership Data: Apache DataSketches was founded 2020-12-15 (2 years ago) There are currently 16 committers and 13 PMC members in this project. The Committer-to-PMC ratio is roughly 8:7. Community changes, past quarter: - No new PMC members. Last addition was David Cromberge on 2021-09-22. - No new committers. Last addition was Will Lauer on 2022-03-07. ## Project Activity: Releases since last Report (August 2022): - Nov 5, 2022: C++/Python Core 3.5.1 - Dec 5, 2022: C++/Python Core 4.0.0 - Aug 15, 2022: Java Memory 2.2.0 Three of our committers, Charlie Dickens, Justin Thaler (PMC), and Daniel Ting (PMC), just published and presented a paper on sketching and differential privacy at the NeurIPS 2022 Conference in New Orleans, which was just held November 26 - December 4, 2022. Our DataSketches Library is referenced several times in the paper. https://arxiv.org/abs/2203.15400 Also, one of our committers (and PMC member) Edo Liberty, has recently contributed a new experimental Python sketch to our library that can be used for multi-dimensional density estimation, k-means estimation and other related kernel functions. This will find interest in the Machine Learning and AI communities. This sketch is based on his research paper (with Zohar Karnin): "Discrepancy, Coresets, and Sketches in Machine Learning", 2019, https://arxiv.org/abs/1906.04845. ## Community Health: The DataSketches project is healthy. Most of our interactions with users are through GitHub or through Slack. We are continuing to work with some of the largest cloud providers on adoption of our library. We are also working closely with the Java Project Panama. We are also seeing some interest in our technology from government agencies, including international agencies.
No report was submitted.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention at this time. ## Membership Data: Apache DataSketches was founded 2020-12-15 (2 years ago) There are currently 16 committers and 13 PMC members in this project. The Committer-to-PMC ratio is roughly 8:7. Community changes, past quarter: - No new PMC members. Last addition was David Cromberge on 2021-09-22. - No new committers. Last addition was Will Lauer on 2022-03-07. ## Project Activity: Releases since last Report (May 2022): Jul 13, 2022: C++/Python Core 3.5.0 Jun 6, 2022: Released Java Core 3.3.0 May 19, 2022: Java Memory 2.1.0 Our research work on Differential Privacy with Sketching has received positive reviews. ## Community Health: The DataSketches project is healthy. Most of our interactions with users are through GitHub or through Slack. We are continuing to work with some of the largest cloud providers on adoption of our library. We are also working closely with the Java Project Panama. We are also seeing some interest in our technology from government agencies.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention at this time. ## Membership Data: Apache DataSketches was founded 2020-12-15 (a year ago) There are currently 16 committers and 13 PMC members in this project. The Committer-to-PMC ratio is roughly 8:7. Community changes, past quarter: - No new PMC members. Last addition was David Cromberge on 2021-09-22. - Will Lauer was added as committer on 2022-03-07 ## Project Activity: Releases since last Report (Feb, 2022): Apr 27, 2022: Released Java Core 3.2.0 Mar 3, 2022: Released Java Hive Adaptor 1.2.0 Feb 17, 2022: Released Java Pig Adaptor 1.1.0 Our recent research work is now published on arXiv.org: [(Nearly) All Cardinality Estimators Are Differentially Private](https://arxiv.org/pdf/2203.15400.pdf). It is also being submitted to some major journals for publication. ## Community Health: The DataSketches project is healthy. Most of our interactions with users are through GitHub or through Slack, both of which are easier to use and more interactive than the dev@ list. So the decrease in dev@ usage is understandable. But on the whole, the activity on the DataSketches project is growing.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention at this time. ## Membership Data: Apache DataSketches was founded 2020-12-15 (a year ago) There are currently 15 committers and 13 PMC members in this project. The Committer-to-PMC ratio is roughly 8:7. Community changes, past quarter: - No new PMC members. Last addition was David Cromberge on 2021-09-22. - No new committers. Last addition was Charlie Dickens on 2020-12-18. ## Project Activity: Dec 2021: Released datasketches-cpp 3.3.0 Jan 2022: Released datasketches-java 3.1.0 Considerable work on synchronizing sketch behavior across C++ and Java. Added comprehensive modeling to check corner cases in set operations. This was inspired by a reported bug (datasketches-java issue #368). We subsequently created this comprehensive model to test for all possible combinations of such issues. All of this has now been released in datasketches-java 3.1.0 and -cpp 3.3.0. This is all documented on our website as well. Our research work is in the area of using sketches for differential privacy. We hope the paper will be published soon. ## Community Health: The DataSketches project is healthy. Most of our interactions with users are through GitHub or through Slack, both of which are easier to use and more interactive than the dev@ list. So the decrease in dev@ usage is understandable. But on the whole, the activity on the DataSketches project is growing.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention at this time. However, we have identified some other sites that may be misusing our copyrights. We will be contacting legal@apache.org to help us understand whether these other site are actually in violation or not. ## Membership Data: Apache DataSketches was founded 2020-12-15 (a year ago) There are currently 15 committers and 13 PMC members in this project. The Committer-to-PMC ratio is roughly 8:7. Community changes, past quarter: - David Cromberge was added to the PMC on 2021-09-22 - No new committers. Last addition was Charlie Dickens on 2020-12-18. ## Project Activity: Although readers can see the 4 releases of this past quarter from the statistics page, probably the most significant release was the Memory-2.0.0 release on 2021-09-14. This release enables the dependant Java components to be able to compile and run with JDK 8 through JDK 13. Once this was released, it enabled the following core Java component release 3.0.0 on 2021-10-02 to also compile and run with JDK 8-13. This coming year we will be working on a release train that will enable the DataSketches Java components to run on JDK17 and beyond. Not immediately obvious from the stats is the work we have done with Python, released with datasketches-cpp on 2021-09-29, which allows Python users access to the DataSketches algorithms with a simple PIP install. ## Community Health: The DataSketches project is healthy. Most of our interactions with users are through GitHub or through Slack, both of which are easier to use and more interactive than the dev@ list. So the decrease in dev@ usage is understandable. But on the whole, the activity on the DataSketches project is growing.
@Sharan: follow up about copyright issue
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention. ## Membership Data: Apache DataSketches was founded 2020-12-15 (8 months ago) There are currently 15 committers and 12 PMC members in this project. The Committer-to-PMC ratio is 5:4. Community changes, past quarter: - No new PMC members. Last addition was Alexander Saydakov on 2020-12-15. - No new committers. Last addition was Charlie Dickens on 2020-12-18. ## Project Activity: datasketches-postgresql-1.5.0 was released on 2021-08-09. datasketches-cpp-3.1.0 was released on 2021-07-16. datasketches-postgresql-1.4.0 was released on 2021-05-17. In addition, the team has been busy refactoring our Java code so that it is compatible with the newer JDK versions 9 and beyond. This has been particularly challenging as there is little that has been published on how to do testing in a JPMS environment. We also have seen a significant interest and uptick in our C++ and PostgreSQL implementations. ## Community Health: Our health is good, given that we have a small and specialized community focused on the science and practice of streaming algorithms. We are seeing more interest from a number of scientists that are interested in contributing and are encouraging that.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention. ## Membership Data: Apache DataSketches was founded 2020-12-15 (5 months ago) There are currently 15 committers and 12 PMC members in this project. The Committer-to-PMC ratio is 5:4. Community changes, past quarter: - No new PMC members. Last addition was Alexander Saydakov on 2020-12-15. - No new committers. Last addition was Charlie Dickens on 2020-12-18. ## Project Activity: Internal work on Java library for JDK 9+ and new C++ Memory model. ## Community Health: Good Health. LinkedIn adopted our library via Apache Pinot (uses DataSketches)..
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention. ## Membership Data: Apache DataSketches was founded 2020-12-15 (3 months ago) There are currently 15 committers and 12 PMC members in this project. The Committer-to-PMC ratio is 5:4. Community changes, past quarter: - No new PMC members (project graduated recently). - Charlie Dickens was added as committer on 2020-12-18 ## Project Activity: DataSketches-java (java core) 2.0.0 was released 2021-02-22. DataSketches-cpp (C++ core) 3.0.0 will be released week of 2021-03-08. ## Community Health: Health is good. We are getting new sources of contribution: Ex: Prof Braverman at Johns Hopkins wants to contribute to our library.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention. ## Membership Data: Apache DataSketches was founded 2020-12-15 (2 months ago) There are currently 15 committers and 12 PMC members in this project. The Committer-to-PMC ratio is 5:4. Community changes, past quarter: - No new PMC members (project graduated recently). - Charlie Dickens was added as committer on 2020-12-18 ## Project Activity: We have completed the transition from podling to TLP. DataSketches-memory was released Jan 22nd. DataSketches-java (Java-core) is expected in the next week. The ASF Press-Release graduation announcement was Feb 3rd. ## Community Health: Health is good. We are continuing to get new inquiries about our project. Ex: We were asked to do a comparison of BlinkDB to DataSketches.
## Description: The mission of Apache DataSketches is the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods ## Issues: There are no issues requiring board attention. ## Membership Data: Apache DataSketches was founded 2020-12-15 (a month ago) There are currently 15 committers and 12 PMC members in this project. The Committer-to-PMC ratio is 5:4. Community changes, past quarter: - No new PMC members (project graduated recently). - Charlie Dickens was added as committer on 2020-12-18 ## Project Activity: Over the past month (since graduation) we have been busy with the transition. With the holidays, we have had only two weeks to work on the transition, nonetheless, as of this writing, we are about 95% complete. We have a number of releases to do, which will be a strong test that we have all the pieces in the right place. Our last release was our C++, Python Core on Sep 22, 2020. We plan for a new release of Java Memory this month with a new release of our Java core shortly thereafter. ## Community Health: We suspect that some of the decrease in traffic on dev@ and users@ may be due to the holidays. Also, much of our code has been very stable in its quality, which is a good thing. We will be introducing some new sketches soon, which will indubitably have concomitant traffic.
WHEREAS, the Board of Directors deems it to be in the best interests of the Foundation and consistent with the Foundation's purpose to establish a Project Management Committee charged with the creation and maintenance of open-source software, for distribution at no charge to the public, related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods. NOW, THEREFORE, BE IT RESOLVED, that a Project Management Committee (PMC), to be known as the "Apache DataSketches Project", be and hereby is established pursuant to Bylaws of the Foundation; and be it further RESOLVED, that the Apache DataSketches be and hereby is responsible for the creation and maintenance of software related to an open source, high-performance library of streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods; and be it further RESOLVED, that the office of "Vice President, Apache DataSketches" be and hereby is created, the person holding such office to serve at the direction of the Board of Directors as the chair of the Apache DataSketches Project, and to have primary responsibility for management of the projects within the scope of responsibility of the Apache DataSketches Project; and be it further RESOLVED, that the persons listed immediately below be and hereby are appointed to serve as the initial members of the Apache DataSketches Project: * Alexander Saydakov <alsay@apache.org> * Dave Fisher <wave@apache.org> * Edo Liberty <edo@apache.org> * Eshcar Hillel <eshcar@apache.org> * Evans Ye <evansye@apache.org> * Furkan Kamaci <kamaci@apache.org> * Jon Malkin <jmalkin@apache.org> * Justin Thaler <jthaler@apache.org> * Kenneth Knowles <kenn@apache.org> * Lee Rhodes <leerho@apache.org> * Liang Chen <chenliang613@apache.org> * Roman Leventov <leventov@apache.org> NOW, THEREFORE, BE IT FURTHER RESOLVED, that Lee Rhodes be appointed to the office of Vice President, Apache DataSketches, to serve in accordance with and subject to the direction of the Board of Directors and the Bylaws of the Foundation until death, resignation, retirement, removal or disqualification, or until a successor is appointed. RESOLVED, that the Apache DataSketches Project be and hereby is tasked with the migration and rationalization of the Apache Incubator DataSketches podling; and be it further RESOLVED, that all responsibilities pertaining to the Apache Incubator DataSketches podling encumbered upon the Apache Incubator PMC are hereafter discharged. Special Order 7D, Establish the Apache DataSketches Project, was approved by Unanimous Vote of the directors present.
DataSketches is an open source, high-performance library of stochastic
streaming algorithms commonly called "sketches" in the data sciences.
Sketches are small, stateful programs that process massive data as a stream
and can provide approximate answers, with mathematical guarantees, to
computationally difficult queries orders-of-magnitude faster than
traditional, exact methods.
DataSketches has been incubating since 2019-03-30.
### Three most important unfinished issues to address before graduating:
1. Adding more committers. We added one last quarter and we have a
few more individuals that we have been considering.
2. We have created a draft Maturity model, which is undergoing review.
3. Prepare for Graduation. We have a Graduation checklist that we are
going through
### Are there any issues that the IPMC or ASF Board need to be aware of?
No.
### How has the community developed since the last report?
Public presentations since last report:
- ACM-KDD conference in August.
- DataCon2020 in Taiwan in September.
- ApacheCon 2020 in September.
We are seeing increased interest from scientific communities that
work with big data and platforms that want to use our code
(e.g. Apache Impala).
### How has the project developed since the last report?
We released a new minor release of C++: 2.1.0.
Based on feedback from our community, we are developing a Docker
deployable version of our library, which hopefully will be
released soon.
We are working on a brand new sketch as part of the Quantiles family.
To the best of our knowledge all of our licensing and website issues
have been addressed and have been implemented in formal releases or
are in master-branch staging, awaiting the next release.
We are continuing to respond to new user's requests for help.
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [ ] Initial setup
- [ ] Working towards first release
- [X] Community building
- [X] Nearing graduation
- [ ] Other:
### Date of last release:
- 2020-06-19 incubating-datasketches-cpp 2.1.0
### When were the last committers or PPMC members elected?
- 2020-08-17 (LDAP create date)
### Have your mentors been helpful and responsive?
Generally our mentors have been very helpful. However, a
little more help from our mentors on timely approval of
our releases would be appreciated. Our last release took
18 days to get 3 IPMC members to vote. We don't know what
is typical, but this seems a bit long. Please advise.
### Is the PPMC managing the podling's brand / trademarks?
To the best of our knowledge, yes.
* Are 3rd parties respecting and correctly using the podlings
name and brand?
As far as we know, yes.
* If not what actions has the PPMC taken to correct this?
We have not had to face this issue yet.
* Has the VP, Brand approved the project name?
Yes, and it is clearly stated as such on
http://incubator.apache.org/projects/datasketches.html
### Signed-off-by:
- [ ] (datasketches) Liang Chen
Comments:
- [ ] (datasketches) Kenneth Knowles
Comments:
- [X] (datasketches) Furkan Kamaci
Comments:
- [X] (datasketches) Evans Ye
Comments:
- [X] (datasketches) Dave Fisher
Comments: I think that DataSketches will be ready to graduate at the
December Board meeting.
### IPMC/Shepherd notes:
DataSketches is an open source, high-performance library of stochastic
streaming algorithms commonly called "sketches" in the data sciences.
Sketches are small, stateful programs that process massive data as a stream
and can provide approximate answers, with mathematical guarantees, to
computationally difficult queries orders-of-magnitude faster than
traditional, exact methods.
DataSketches has been incubating since 2019-03-30.
### Three most important unfinished issues to address before graduating:
1. Adding more committers. We have just added our first new committer
since incubation! We have a few more individuals that have been
consistent contributors to the project that we will soon want to
go through the new committer election process. This is a big change
from our last report where we had no candidates at all.
2. Fill out the Maturity Model
3. Prepare for Graduation.
### Are there any issues that the IPMC or ASF Board need to be aware of?
We could use some help in finding people who would find working in
the sketching algorithms area really interesting and would want
to work with us to become committers.
### How has the community developed since the last report?
The word is getting out! We presented talks at the USPTO 2020 tech
conference and the Spark & AI 2020 conference, mentioned in the last
report, with lots of good feedback.
We will be co-authors in a tutorial on sketching technology at the
upcoming ACM-KDD conference in August with one of the world's
leading scientists in streaming algorithms and sketching.
We have been invited to give a keynote talk at the upcoming
DataCon2020 in Taiwan in early September.
We have been accepted for a talk at ApacheCon again this year.
We also are seeing a big increase in the number of single PRs coming
from a number of different people, especially for our C++ components,
which is very good news. This proves that there is growing
interest in the project and there are folks out there that want to
contribute to the project.
### How has the project developed since the last report?
See the releases since the last report below.
In addition we have made significant improvements to our website
thanks to some external contributors!
To the best of our knowledge all of our licensing and website issues
have been addressed and have been implemented in formal releases or
are in master-branch staging, awaiting the next release.
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [ ] Initial setup
- [ ] Working towards first release
- [X] Community building
- [X] Nearing graduation
- [ ] Other:
### Date of last release:
- 2020-07-06 incubating-datasketches-hive 1.1.0
- 2020-06-19 incubating-datasketches-cpp 2.0.0
- 2020-05-07 incubating-datasketches-java 1.3.0
### When were the last committers or PPMC members elected?
August, 2020
### Have your mentors been helpful and responsive?
Yes, in general. However, we do have to prod them with reminders
to check-off our releases. Our releases have been taking
longer and longer to get through the voting process especially
when it is in the 2nd IPMC phase. A little help here would
be appreciated.
### Is the PPMC managing the podling's brand / trademarks?
To the best of our knowledge, yes.
* Are 3rd parties respecting and correctly using the podlings
name and brand?
As far as we know, yes.
* If not what actions has the PPMC taken to correct this?
We have not had to face this issue yet.
* Has the VP, Brand approved the project name?
Yes, and it is clearly stated as such on
http://incubator.apache.org/projects/datasketches.html
### Signed-off-by:
- [X] (datasketches) Liang Chen
Comments:
- [X] (datasketches) Kenneth Knowles
Comments:
- [X] (datasketches) Furkan Kamaci
Comments:
- [X] (datasketches) Dave Fisher
Comments:
- [X] (datasketches) Evans Ye
Comments:
### IPMC/Shepherd notes:
DataSketches is an open source, high-performance library of stochastic
streaming algorithms commonly called "sketches" in the data sciences.
Sketches are small, stateful programs that process massive data as a
stream and can provide approximate answers, with mathematical
guarantees, to computationally difficult queries orders-of-magnitude
faster than traditional, exact methods.
DataSketches has been incubating since 2019-03-30.
### Three most important unfinished issues to address before graduating:
1. Clearly, the most important issue for us is to add more committers.
From the Clutch and Podling Website reports, this is the last
major issue for us.
We have tried to encourage folks that ask questions or raise issues
to get more involved, and we have one or two folks that have
expressed interest in submitting PRs or even a new sketch. But,
alas, none have followed through, yet.
Developing sketch code is very tricky and understanding how these
algorithms work, and the math and statistics behind them, is a hurdle
for most people. Yet, we have been very clear that we are prepared to
train someone to become a committer. All we ask is that the
candidate be open to learning about these fascinating algorithms and
committed to work with us. We could use some active help from our
Mentors or from the Board to help us find someone that would find
this work interesting.
I am convinced that there are folks in the greater Apache community
that would really enjoy working on this library, we just need to
discover who they are!
2. Referring to last month's report, we have made progress in setting up
TODO lists on our major sites: Java and C++. And we keep working
away at these lists. We have also improved our Downloads page and
brought it up to Apache standards. I don't feel these should be
issues for graduation.
### Are there any issues that the IPMC or ASF Board need to be aware of?
The issue mentioned above. We could use some help in finding someone
who would find working in the sketching algorithms area really
interesting and would want to work with us to become a committer.
### How has the community developed since the last report?
We have been accepted to present at two conferences this Summer, the
USPTO technology conference and the Spark & AI conference.
We also have interest from Apache Flink and Apache Impala to
integrate sketches into their systems. There has also been interest
from Apache Beam, but so far no action.
### How has the project developed since the last report?
We have done a lot of work making the C++ code more robust and will
likely have a major new release of the C++ library before this
report is read by the Board. We also in the voting process for a
new Java release that cleans up some licensing glitches and fixes
a bug found by Druid.
Our activity on Slack has increased quite a bit with
interesting queries from all over.
We also have done a lot of work on the website, adding content and
improving navigation. The Community and Downloads pages are all new.
Please have a look!
We continue to improve our release process with more guided scripts
and fix issues as we discover them.
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [ ] Initial setup
- [ ] Working towards first release
- [X] Community building -- this is a continuous, on-going effort
- [X] Nearing graduation
- [ ] Other:
### Date of last release:
* 2020-01-26 Java release 1.2.0-incubating.
* The Java 1.3.0-incubating release will be out before the Board
meeting.
* A new C++ 2.0.0-incubating release may be out before
the Board meeting.
### When were the last committers or PPMC members elected?
No new committers since April, 2019.
### Have your mentors been helpful and responsive?
Yes. No open issues.
### Is the PPMC managing the podling's brand / trademarks?
To the best of our knowledge, yes.
* Are 3rd parties respecting and correctly using the podlings name and
brand?
As far as we know, yes.
* If not what actions has the PPMC taken to correct this?
We have not had to face this issue yet.
* Has the VP, Brand approved the project name?
Yes, and it is clearly stated as such on
http://incubator.apache.org/projects/datasketches.html
### Signed-off-by:
- [X] (datasketches) Liang Chen
Comments:
- [ ] (datasketches) Kenneth Knowles
Comments:
- [X] (datasketches) Furkan Kamaci
Comments:
- [X] (datasketches) Dave Fisher
Comments:
- [X] (datasketches) Evans Ye
Comments:
### IPMC/Shepherd notes:
Justin Mclean: Perhaps one way of attracting more interest is to have more
conversation on the mailing list?
DataSketches is an open source, high-performance library of stochastic
streaming algorithms commonly called "sketches" in the data sciences.
Sketches are small, stateful programs that process massive data as a stream
and can provide approximate answers, with mathematical guarantees, to
computationally difficult queries orders-of-magnitude faster than
traditional, exact methods.
DataSketches has been incubating since 2019-03-30.
### Three most important unfinished issues to address before graduating:
1. Be more communicative and document our code changes more clearly.
2. We need to have more substantive discussions on dev@ especially about
our growing
TODO list and how we plan to address them -- create a roadmap as a
guide for others to contribute.
3. Find / Attract new code committers outside Yahoo!
### Are there any issues that the IPMC or ASF Board need to be aware of?
No
### How has the community developed since the last report?
We are presenting at more conferences which has attracted some interest.
We are definitely getting more traffic on our forum, GitHub issues
and email lists. We recently added two channels on the-asf@slack:
#datasketches and #datasketches-dev. The traffic has been fairly low on
Slack as well as the forum. We could do more to publicize the slack
channels. I could be optimistic and believe the low traffic is due to
the holidays -- or that the code just works :)
Nonetheless, the download traffic measured by repository.a.o
has grown exponentially since our first Apache release on Sep 23. We are
over 1000
unique IPs/ month and had a recent high of 22K downloads/ month. Bear in
mind
that this is all traffic that has migrated from the older, pre-Apache
artifacts
at com.yahoo.datasketches and is already higher than our peak downloads
prior to
Apache. These numbers also do not reflect any downloads of our Zip
artifacts
from a.o./dist (which includes our C++ artifacts) or other external
download
repositories (for example, specific to PostgreSQL).
### How has the project developed since the last report?
Our releases are becoming easier, more polished and routine.
Nonetheless, our website needs a lot of work (as mentioned above) and
this will become our focus for the next month or so.
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [ ] Initial setup
- [ ] Working towards first release
- [X] Community building
- [ ] Nearing graduation
- [ ] Other:
### Date of last release:
These are the major components and their last release dates:
* DataSketches-Java 2020-01-26
* DataSketches-Memory 2019-11-21
* DataSketches-CPP 2019-09-17
* DataSketches-Hive 2019-10-11
* DataSketches-Pig 2019-10-18
* DataSketches-Postgresql 2019-10-29
### When were the last committers or PPMC members elected?
No new committers since April, 2019.
### Have your mentors been helpful and responsive?
Yes.
No open issues.
### Is the PPMC managing the podling's brand / trademarks?
To the best of our knowledge, yes.
* Are 3rd parties respecting and correctly using the podlings name and
brand?
As far as we know, yes.
* If not what actions has the PPMC taken to correct this?
We have not had to face this issue yet.
* Has the VP, Brand approved the project name?
Yes, and it is clearly stated as such on
http://incubator.apache.org/projects/datasketches.html
### Signed-off-by:
- [X] (datasketches) Liang Chen
Comments:
- [X] (datasketches) Kenneth Knowles
Comments:
- [X] (datasketches) Furkan Kamaci
Comments:
- [X] (datasketches) Dave Fisher
Comments:
- [X] (datasketches) Evans Ye
Comments:
### IPMC/Shepherd notes:
DataSketches is an open source, high-performance library of stochastic
streaming algorithms commonly called "sketches" in the data sciences.
Sketches are small, stateful programs that process massive data as a stream
and can provide approximate answers, with mathematical guarantees, to
computationally difficult queries orders-of-magnitude faster than
traditional, exact methods.
DataSketches has been incubating since 2019-03-30.
### Three most important unfinished issues to address before graduating:
1. Finish the transfer and bring-up of our website to
github.com/apache/... This is now in process.
2. __Team Interactions:__ We want to have our exchanges on the ASF
Slack DataSketches-dev channel posted to our dev@datasketches.a.o
list on a daily basis for improved visibility and searchability.
We have an open INFRA ticket on this issue.
We are searching for a solution to provide more open access to
our video conference sessions when we have them. We are in the
process of moving more of our interactions into the slack
DS-dev channel and dev@ list. This is a culture change for us
and will take some getting used to. We clearly want open
access to our team discussions.
3. We would like to see a few more folks
join our contributors list. We have several folks that
have come forward and offered help because they are interested
in the project. This is great. It is our hope that they will
grow into active contributors.
### Are there any issues that the IPMC or ASF Board need to be aware of?
None
### How has the community developed since the last report?
* We have added 1 new Mentor, Dave Fisher (thank you!) to our project
and we have been approached by another Apache member
who would also like to be a mentor, and eventually a contributor
as well. This is very positive!
### How has the project developed since the last report?
* We have now managed 7 releases, 6 Java releases and 1 C++ release.
We have one more C++ release pending. These are across 6 different
components of the DataSketches library. With the last pending C++
release, all of the code components targeted for release will
be complete.
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [ ] Initial setup
- [ ] Working towards first release
- [X] Community building
- [ ] Nearing graduation
- [ ] Other:
### Date of last release:
2019-10-19 01:55 GMT DataSketches-pig
### When were the last committers or PPMC members elected?
* Dave Fisher: 16 Sep 2019
### Have your mentors been helpful and responsive?
* Helpful and responsive, Yes.
Having additional mentors has helped the voting
move forward more expeditiously!
* I want to thank Dave Fisher for jumping in and helping us
with a number of issues!
### Signed-off-by:
- [X] (datasketches) Liang Chen
Comments:
- [x] (datasketches) Kenneth Knowles
Comments:
- [X] (datasketches) Furkan Kamaci
Comments:
- [X] (datasketches) Dave Fisher
Comments:
### IPMC/Shepherd notes:
DataSketches is an open source, high-performance library of stochastic
streaming algorithms commonly called "sketches" in the data sciences.
Sketches are small, stateful programs that process massive data as a stream
and can provide approximate answers, with mathematical guarantees, to
computationally difficult queries orders-of-magnitude faster than
traditional, exact methods.
DataSketches has been incubating since 2019-03-30.
### Three most important unfinished issues to address before graduating:
1. Our vote letter on general@ had no responses from anyone (not just
IPMC members) for the first 73 hours. After sending a pleading
reminder email I finally got 3 +1 binding votes. I'm trying to be
polite and not needle folks, but I need guidance on how to get IPMC
members' attention. I realize the vote must stay open for at least
72 hours, but having to wait until the last minute get any response
is very aggravating. Would it be fair to send out reminder notices on
24 hour intervals?
2. Continue to perfect the release process.
3. After we get this first release, we need to finish migrating the
remaining repos.
### Are there any issues that the IPMC or ASF Board need to be aware of?
1. Yes. In addition to #1 above, not all of our Mentors have been
involved. Why do Mentors sign up if they do not or cannot mentor?
### How has the community developed since the last report?
Not too much at the committer level. We have drawn the
interest of a few new scientists in our work, but they did not
learn of our work from Apache.
It is still very early. I am speaking at ApacheCon
In September, hopefully we can attract some interest there.
I am hoping to attract some committers.
### How has the project developed since the last report?
We continue to evolve the project and make commits to the code base.
We are also heavily integrated into the Druid platform.
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [X] Initial setup
- [X] Working towards next release
- [ ] Community building
- [ ] Nearing graduation
- [ ] Other:
### Date of last release:
2019-08-02 Our First release of our first component!
Thanks to: Kenneth Knowles, Furkan Kamaci, Paul King and
Justin Mclean for their help.
### When were the last committers or PPMC members elected?
When we entered incubation.
### Have your mentors been helpful and responsive?
Two (of 3) of our Mentors have been responsive when they are not
otherwise unavailable (vacation, work, etc.)
### Signed-off-by:
- [X] (datasketches) Liang Chen
Comments:
- [ ] (datasketches) Kenneth Knowles
Comments:
- [X] (datasketches) Furkan Kamaci
Comments:
### IPMC/Shepherd notes:
Justin Mclean: 72 hours is a minimum and a podling may not attract
all needed votes in that time. I understand it may be frustrating
but remember IPMC member are volunteers and mostly do this work
unpaid in their spare time. If you need more Mentors just ask on
the incubator general list.
DataSketches is an open source, high-performance library of stochastic
streaming algorithms commonly called "sketches" in the data sciences.
Sketches are small, stateful programs that process massive data as a stream
and can provide approximate answers, with mathematical guarantees, to
computationally difficult queries orders-of-magnitude faster than
traditional, exact methods.
DataSketches has been incubating since 2019-03-30.
### Three most important unfinished issues to address before graduating:
1. Complete a successful 1st snapshot release of Memory repo to DIST and
Nexus. This is a blocking issue.
2. Finish refactoring/snapshot releasing the other repos, which depend on
#1.
3. Move, refactor Website.
### Are there any issues that the IPMC or ASF Board need to be aware of?
For the IPMC:
As a newbie podling, my experience so far has been exasperating. Finding
how to accomplish key tasks is difficult. The information is spread all
over and the essential details of how to actually
accomplish tasks are often missing.
I have run into multiple roadblocks, especially with regards to
permissions. I have to keep filing new tickets with INFRA to setup access
to infrastructure and they reply that the Mentors need to do this. When
I ask on general@incubator, the replies I get suggest I need to file
tickets with INFRA. So I am confused.
### How has the community developed since the last report?
Not much. I wish I could spend more time on this, but I need to get
the migration done.
### How has the project developed since the last report?
We continue to evolve the project's functionality with commits to our
GitHub repos.
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [x] Initial setup
- [x] Working towards first release
- [ ] Community building
- [ ] Nearing graduation
- [ ] Other:
### Date of last release:
No releases yet.
### When were the last committers or PPMC members elected?
At the initial incubation date.
### Have your mentors been helpful and responsive?
1. I have opened INFRA issues that have not yet been addressed and there
will be more to come.
2. I could REALLY use some 1:1 help from an experienced release engineer
(perhaps from another project),that is very familiar with the Apache/Maven
release process and POM to get us off the ground.
Once we have created our first release, we can continue from there. But
getting this first one is out is turning out to be quite a challenge.
I don't think we need more than an hour with an experienced Apache
release engineer, our project just isn't that complicated.
3. I haven't heard from any of the mentors for the last week or so,
perhaps they are all on vacation.
### Signed-off-by:
- [ ] (datasketches) Liang Chen
Comments:
- [X] (datasketches) Kenneth Knowles
Comments:
- [ ] (datasketches) Furkan Kamaci
Comments:
### IPMC/Shepherd notes:
Justin Mclean: Please ask your mentors for help, they can setup most
things or direct yo to when you can get help. If your mentors can't help
then ask on teh incubator general list.
DataSketches is an open source, high-performance library of stochastic
streaming algorithms commonly called "sketches" in the data sciences.
Sketches
are small, stateful programs that process massive data as a stream and can
provide approximate answers, with mathematical guarantees, to
computationally
difficult queries orders-of-magnitude faster than traditional, exact
methods.
DataSketches has been incubating since 2019-03-30.
### Three most important unfinished issues to address before graduating:
1. Finish code migration
2. Set up automated builds
3. Establish code review practices
### Any issues that the Incubator PMC (IPMC) or ASF Board wish/need to be
aware of
No
### How has the community developed since the last report?
We are still in the process of setting up permissions and figuring out
Apache environment.
### How has the project developed since the last report?
Most DataSketches repos have been moved to Apache repos.
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [X] Initial setup
- [ ] Working towards first release
- [ ] Community building
- [ ] Nearing graduation
- [ ] Other:
### Date of last release:
No releases yet
### When were the last committers or PPMC members elected?
We have just signed up our initial committers
### Have your mentors been helpful?
Yes, very helpful.
### Signed-off-by:
- [ ] (datasketches) Liang Chen
Comments:
- [X] (datasketches) Kenneth Knowles
Comments:
- [X] (datasketches) Furkan Kamaci
Comments:
### IPMC/Shepherd notes:
DataSketches is an open source, high-performance library of stochastic streaming algorithms commonly called "sketches" in the data sciences. Sketches are small, stateful programs that process massive data as a stream and can provide approximate answers, with mathematical guarantees, to computationally difficult queries orders-of-magnitude faster than traditional, exact methods. DataSketches has been incubating since 2019-03-30. Three most important unfinished issues to address before graduating: 1. Finish IP Assignments 2. Code Migration 3. Perform a Release Any issues that the Incubator PMC (IPMC) or ASF Board wish/need to be aware of? No How has the community developed since the last report? We have the key committers signed up. We are all learning how to navigate in the Apache environment and how to find things. How has the project developed since the last report? This is our first report. How would you assess the podling's maturity? Please feel free to add your own commentary. [X] Initial setup [ ] Working towards first release [ ] Community building [ ] Nearing graduation [ ] Other: Date of last release: Our DataSketches.GitHub.io site is quite active as we are very active with new code and releases from this site. For example, our latest release of sketches-core was yesterday, 25 April 2019. We are a long way from being able to release from the migrated Apache code base as it doesn't yet exist. XXXX-XX-XX When were the last committers or PPMC members elected? We have just signed up are initial list of committers. Have your mentors been helpful and responsive or are things falling through the cracks? In the latter case, please list any open issues that need to be addressed. Kenneth Knowles has been extremely helpful! Thank you! Signed-off-by: [X](datasketches) Liang Chen Comments: [X](datasketches) Kenneth Knowles Comments: Initial set up has been a bit slow; that's on me [X](datasketches) Furkan Kamaci Comments: IPMC/Shepherd notes: