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Publications:

    2018

  1. The Percentage Cube
    Yiqun Zhang, Carlos Ordonez, Javier García-García, Ladjel Bellatreche, Humberto Carrillo
    Information Systems (IS) [ScienceDirect]

    2. 2017

  2. Optimization of Percentage Cube Queries
    Yiqun Zhang, Carlos Ordonez, Javier García-García, Ladjel Bellatreche
    EDBT/ICDT Workshops 2017 [PDF] [Github]
  3. A Cloud System for Machine Learning Exploiting a Parallel Array DBMS
    Yiqun Zhang, Carlos Ordonez, Lennart Johnsson
    IEEE Proceedings of the DEXA Workshop 2017 [PDF]

    4. 2016

  4. The Gamma Matrix to Summarize Dense and Sparse Data Sets for Big Data Analytics
    Carlos Ordonez, Yiqun Zhang, Wellington Cabrera
    IEEE Transactions on Knowledge and Data Engineering (TKDE)，
    28(7): 1905-1918 (2016) [IEEEXplore] [PDF] [Github]
  5. Big Data Analytics Integrating a Parallel Columnar DBMS and the R Language
    Yiqun Zhang, Carlos Ordonez, Wellington Cabrera
    IEEE International Symposium on Cluster, Cloud and Grid Computing (CCGrid), 2016 [IEEEXplore] [PDF]
  6. Time Complexity and Parallel Speedup to Compute the Gamma Summarization Matrix
    Carlos Ordonez, Yiqun Zhang
    Proc. Alberto Mendelzon International Workshop on Foundations of Data Management (AMW), 2016 [PDF]

    7. 2015

  7. The Gamma Operator to Summarize Dense and Sparse Data Sets on the SciDB Array Database System (poster)
    Yiqun Zhang, Wellington Cabrera, Carlos Ordonez
    New England Database Day at MIT (NEDB 2015) [Abstract]
  8. Fast Recursive Query Evaluation in a Columnar DBMS to Analyze Large Graphs (poster)
    Wellington Cabrera, Yiqun Zhang, Carlos Ordonez
    New England Database Day at MIT (NEDB 2015) [Abstract]

    9. 2014

  9. The Gamma Operator for Big Data Summarization on an Array DBMS
    Carlos Ordonez, Yiqun Zhang, Wellington Cabrera
    Journal of Machine Learning Research (JMLR): Workshop and Conference Proceedings (BigMine 2014: 88-103) [PDF][Github]