Vijayaraghavan Bashyam

About

I am a senior engineer at Monster. I work with the search internationalization team in Mountain View, CA. For an overview of what my group does, check out Trovix.

Previously, I have been with the National Library of Medicine (post-doc & intern), Yahoo! Inc. (intern), and UCLA (grad school).

If you think I may be a long lost friend, you may want to look here.

Research

I am broadly interested in natural language understanding and its applications to information extraction from large text collections such as medical reports, web pages, wikipedia etc.

During my brief postdoc stint at the NLM, I worked on named-entity recognition from clinical reports. During a previous internship at the NLM, I worked on spell correction for biomedical text.

Towards my PhD, I explored deep syntactic approaches to medical concept extraction and 'normalization'.

I spent as summer interning at Yahoo! where I worked on related-keyword generation using data mining.

Publications

DISSERTATION

• Towards a canonical representation for machine understanding of natural language in radiology reports.

  Dept. Information Studies, University of California Los Angeles. 2008 [PDF Version]

JOURNAL PAPERS

• Problem-centric Organization and Visualization of Patient Imaging and Clinical Data.

  V Bashyam, W Hsu, E Watt, AAT Bui, RK Taira.

  Radiographics. March 2009 [PREPRINT][FINAL VERSION]

• Identifying relevant medical reports from an assorted report collection using the multinomial naïve Bayes classifier and the UMLS.

  V Bashyam, C Morioka, S El-Saden, AAT Bui, RK Taira.

  Indian Journal of Medical Informatics. 2007; 2(1):2 [PDF Version]

• A Field Theoretical Approach to Medical Natural Language Processing.

  RK Taira, V Bashyam, H Kangarloo

  IEEE Transactions on Information Technology in Biomedicine. 11(4): 364-375. 2007[PDF Version]

CONFERENCE PAPERS

• Incorporating Syntactic Dependency Information towards improved coding of lengthy medical concepts in clinical reports.

  V Bashyam,RK Taira.

  To Appear in the BioNLP-2009 Workshop at NAACL 2009. [PDF Version]

• A Tool for Improving the Longitudinal Imaging Characterization for Neuro-Oncology Cases.

  RK Taira, A Bui, W Hsu, V Bashyam, E Watt, L Andrada, S El-Saden, T Cloughesy, H Kangarloo.

  Proceedings of the American Medical Informatics Association Annual Symposium 2008. Washington DC.[PDF Version]

• A Normalized Lexical Lookup Approach to identifying UMLS concepts in free text.

  V Bashyam, G Divita, D Bennett, A Browne, RK Taira.

  Proceedings of the 12th World Congress on Health Informatics (MEDINFO 2007). Brisbane, Australia. [PDF Version]

• Identifying Anatomical Phrases in Clinical Reports by Shallow Semantic Parsing Methods.

  V Bashyam, RK Taira.

  Proceedings of the IEEE Symposium on Computational Intelligence and Data Mining 2007. Honolulu, Hawaii. [PDF Version]

• Indexing Anatomical Phrases in Neuro-Radiology Reports to the UMLS 2005AA

  V Bashyam, RK Taira.

  Proceedings of the American Medical Informatics Association Annual Symposium 2005. Washington DC. [PDF Version]

POSTERS

• A Case Retrieval System for Neuroradiology Using a Natural Language Processing Engine and Treemap Visualization.

  RK Taira, W Hsu, V Bashyam

  InfoRad Technical Demonstration. Proceedings of the Annual Meeting of the Radiological Society of North America. 2008

• Extracting biomedical entities from free text to facilitate secondary use of clinical reports.

  V Bashyam, G Divita, A Browne

  NSF Biomedical Informatics Workshop: Expanding Secondary Use of Health Data. 2007

• A Problem-centric Organization and Spatial-Temporal Representation of Patient Records.

  V Bashyam, DB Bennett, L Boyadzhyan, L D'Avolio, W Hsu, G Rees, S El-Saden, RK Taira.

  InfoRad Technical Demonstration. Proceedings of the Annual Meeting of the Radiological Society of North America. 2007

• A Study of Lexical Behavior of Sentences in Chest Radiology Reports.

  V Bashyam, RK Taira.

  Proceedings of the American Medical Informatics Association Annual Symposium 2005. Washington DC.

Professional Activities

• Journal Editorial/Advisory Boards: JAMIA 2007-09, InterActions: 2006-07
• Journal Reviewer: Indian Journal of Medical Informatics
• Conference Reviewer: HICSS {41,40}, AMIA {2009,2008,2007}, MedInfo 2007, ISOneWorld 2007, MIE {2009, 2008}, ICON {2008,2009}.

Past Collaborators

• Ricky K Taira (UCLA)
• Craig Morioka (UCLA, currently with the Veteran's Administration Healthcare)
• Frank Meng (UCLA, currently with Aerospace Corporation)
• William Hsu (UCLA)
• Allen Browne (National Library of Medicine)
• Guy Divita (National Library of Medicine)
• Dina Demner-Fushman (National Library of Medicine)
• Remi Zajac (Yahoo! Inc., currently with YellowPages.com)