• Algebraic Databases


    Start Time:

    Oct 12, 2017 6:00 PM

    End Time:

    Oct 12, 2017 9:00 PM

    Location:
    Constant Contact Reservoir Place
    1601 Trapelo Road Waltham MA 021451
    0


    Speaker: Ryan Wisnesky

    In this talk we describe a new algebraic approach to databases based on category theory, a branch of mathematics which has already revolutionized several areas of computer science (including functional programming) and which provides theoretical guidance missing from the relational, graph, XML and RDF data models.  In summary, we conceptualize a database schema as a category, and from this simple definition obtain a basis of operations sufficient to query data (providing an alternative to SQL), migrate data (providing an alternative to ETL tools such as Informatica), and integrate data (providing an alternative to integration tools such as Tamr).

     

    This project originated in the MIT math department in 2010 and has culminated in a Java-based open-source data manipulation tool, AQL, available at http://categoricaldata.net/aql.html, as well as a start-up company, Categorical Informatics, commercializing AQL with the support of the National Institute of Standards and Technology (NIST).  This project was briefly described in a NEJUG lightning talk in the Spring of 2016, and in this talk we expand on both the technical specifics from the previous talk and demonstrate additional progress that has been made toward making AQL industrial strength - including significant performance and expressivity improvements.  No knowledge of category theory is required to understand the talk.   

    Speaker Biography

    Ryan Wisnesky obtained B.S. and M.S. degrees in mathematics and computer science from Stanford University and a Ph.D. in computer science from Harvard University, where he studied the design and implementation of provably correct software systems. Previously, he was a postdoctoral associate in the MIT department of mathematics, where he developed the algebraic query language AQL. He currently leads AQL-related commercialization activities at Categorical Informatics, Inc. He maintains an active collaboration with the information-integration department of IBM Research, where he contributed to the Clio, Orchid, and HIL projects.




NEJUG Calendar

Recent Events
    • NEJUG becomes Boston Java Users ACM Chapter


      Wednesday June, 01, 2022 12:00 AM

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    We, the new board members, are thrilled to announce that NEJUG is now an official chapter of ACM (Association for Computing Machinery - acm.org). We are excited about this new chapter in the history of  NEJUG. The group, hereafter, will be known as “Boston Java Users ACM Chapter” or “Boston Java Users” for short. 

     The board consists of following volunteer members, some members are designated with specific roles mentioned with their name below. 

    1. Baris Kazar
    2. Justin Sun (Treasurer)
    3. Kyle Smith
    4. Lori Fair
    5. Mahesh Acharya (Vice Chair)
    6. Peter Kelley
    7. Ralph Navarro
    8. Rohit Bhardwaj 
    9. Seung Kim 
    10. Stevel Lintz (Chairman)
    11. Sualeh Fatehi

    To reflect the change of name, we have registered following domain names, which currently forwards to nejug.org

    www.bostonjavausers.com
    www.bostonjavausers.org 

    Please note:

    • There are no changes at the moment to the current members and the membership on nejug.org. 
    • New persons wishing to join Boston Java Users may sign up for an account on this website. 
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    • You will also receive e-mail delivery of all meeting announcements. 

     

    Please feel free to reach out to us (link below) if you have any questions regarding this announcement. 
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    We thank all the members and we look forward to resume our monthly meetings in the very near future,  please stay tuned. 

     

     

    • Open Invitation for NEJUG Members to Join Board of Directors

      Attended: 1
      Thursday April, 14, 2022 07:00 PM

      0

    The NEJUG core planning group is evaluating the option of forming a legal entity as a Chapter of the Association for Computing Machinery (https://www.acm.org/) . We are looking for passionate individuals that have been part  of the NEJUG community in the past and would like to do more in the future. If you are interested in such a role (Board of Director), please join us for a Zoom video conference on Thursday April 14, 2022 from 7:00pm to 8:30pm EDT. 

    We will send the Zoom meeting link privately to all interested memebers. 

     

    • So What’s Going On With Java EE?


      Thursday March, 12, 2020 06:00 PM
      Microsoft
      5 Wayside Rd Burlington MA 01803
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    NOTE: Registration is ONLY via MeetUp:

    MeetUp Registration: So What’s Going On With Java EE?.


    What does JavaEE’s reincarnation as JakartaEE mean for developers? Author and JakartaEE ambassador Reza Rahman will discuss the recent history and present-day state of JakartaEE. He will then demonstrate the latest JakartaEE updates and coming attractions in Servlets, JPA, CDI, Jakarta REST, Security features, and other technologies.

    • Creating Resilient Micro-Services


      Thursday February, 13, 2020 06:00 PM

      1

    NOTE: Registration is ONLY via MeetUp:

    MeetUp Registration: Creating Resilient Micro-Services.


    The foundation of Application Resiliency is often found in the application code where Fault Tolerance is baked into the application at the time of designing and coding….

    This presentation starts with building resiliency ground-up by baking the basic crucial patterns into the application. Resiliency4j provides the out of the box integration with Spring Boot, a defacto standard micro-service framework.

    The patterns discussed include:

    • Rate Limiter
    • Retry
    • Bulkhead
    • Circuit Breaker
    • Timeouts