Matthew T. Hatem

My name is Matthew Hatem.  I am a graduate student at the University of New Hampshire and a Senior Software Engineer at IBM.  I am a member of the UNH Artificial Intelligence Group.  I am currently working with Professor Wheeler Ruml in the area of heuristic search.  I am interested in parallel, distributed and external memory search algorithms.


I enjoy participating in open source software projects.  In previous years I did some work with the Eclipse project and at one time I was a committer.  I spent a little time investigating enhancements to the OpenSocial 2.0 specification and implementation within Apache Shindig.  More recently I have been using Apache UIMA, Apache Lucene and Lemur Indri.

Recent Publications


  1. Matthew Hatem, Roni Stern and Wheeler Ruml, Bounded Suboptimal Heuristic Search in Linear Space , Proceedings of the Sixth Annual Symposium on Combinatorial Search (in press), 2013 PDF


  1. Matthew Hatem and Wheeler Ruml, External Memory Best-First Search for Multiple Sequence Alignment, Proceedings of the Twenty-seventh AAAI Conference on Artificial Intelligence (in press), 2013 PDF


  1. Ethan Burns, Matthew Hatem, Michael J. Leighton, and Wheeler Ruml, Implementing Fast Heuristic Search Code, Proceedings of the Fifth Annual Symposium on Combinatorial Search (SoCS-12), 2012 PDF


  1. Matthew Hatem, Ethan Burns and Wheeler Ruml, Heuristic Search for Large Problems With Real Costs, Proceedings of the Twenty-fifth AAAI Conference on Artificial Intelligence (AAAI-11) , 2011. PDF

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