Klematis

My name is Arman Cohan and I am a PhD student in computer science at Georgetown University. I am working under supervision of Dr. Nazli Goharian and I am part of the Information Retrieval Lab. My main areas of interest include Natural Language Processing, Information Retrieval and their applications in healthcare. You can check out my full CV here.

Before joining Georgetown, I obtained my masters degree from Amirkabir University of Technology (Tehran Polytechnic) in E-Business in 2013. My undergraduate years were spent in the same school, where I obtained my Bachelors degree in Information Technology in 2010.


News

    • I am co-organizing the 2017 Mid-Atlantic Student Colloquium on Speech, Language and Learning (MASC-SLL)
    • Journal paper "Triaging Content Severity in Online Mental Health Forums" accepted for publication in JASIST.
    • I will be joining Adobe Research for an internship in Summer 2017.
    • Our paper: "A Neural Attention Model for Categorizing Patient Safety Events" was accepted in ECIR 2017.
    • I successfully defended my PhD dissertation proposal on Nov 14th 2016.
    • I will be at Medstar Health Research, Institute for Innovation (MI2) during Summer 2016.
    • Our summarization evaluation paper was accepted in LREC 2016.
    • Our paper: "Scientific Article Summarization Using Citation-Context and Article's Discourse Structure" was accepted in EMNLP 2015.
    • I will be at Medstar Health Research, Institute for Innovation (MI2) during Summer 2015.
    • Our paper: "Matching Citation Text and Cited Spans in Biomedical Literature: a Search-Oriented Approach" was accepted in NAACL 2015.

Publications

    • 2017
      • "Scientific Document Summarization via Citation Contextualization and Scientific Discourse"
        Arman Cohan, and Nazli Goharian
        International Journal of Digital Libaries (IJDL)
        link bib
      • "Contextualizing Citations for Scientific Summarization using Word Embeddings and Domain Knowledge"
        Arman Cohan, and Nazli Goharian
        SIGIR 2017 [To appear]
        pdf bib
      • "A Framework for Cross-Domain Clinical Temporal Information Extraction"
        Sean MacAvaney, Arman Cohan, and Nazli Goharian
        International Workshop on Semantic Evaluation (SemEval 2017) [To appear]
        pdf
      • "Triaging Content Severity in Online Mental-Health Forums"
        Arman Cohan, Sydney Young, Andrew Yates, Nazli Goharian
        Journal of the Association for Information Science and Technology (JASIST) [To appear]
        pre-print bib
      • "A Neural Attention Model for Categorizing Patient Safety Events"
        Arman Cohan, Allan Fong, Nazli Goharian, Raj Ratwani
        European Conference on Information Retrieval (ECIR 2017)
        pdf bib
    • 2016
      • "Triaging Mental Health Forum Posts"
        Arman Cohan, Sydney Young, Nazli Goharian
        NAACL 2016 Workshop on Computational Linguistics and Clinical Psychology (CLPsych 2016)
        pdf bib poster
      • "Temporal Information Extraction from Clinical Narratives"
        Arman Cohan, Kevin Meurer, Nazli Goharian
        International Workshop on Semantic Evaluation (SemEval 2016)
        pdf bib poster
      • "Identifying Significance of Discrepancies in Radiology Reports"
        Arman Cohan, Luca Soldaini, Nazli Goharian, Allan Fong, Ross Filice, Raj Ratwani
        SDM workshop Data Mining for Medicine and Healthcare (SDM-DMMH 2016)
        pdf bib slides
      • "Revisiting Summarization Evaluation for Scientific Articles"
        Arman Cohan and Nazli Goharian
        Language Resources and Evaluation (LREC 2016)
        pdf bib poster
    • 2015
      • "Scientific Article Summarization Using Citation-Context and Article's Discourse Structure"
        Arman Cohan and Nazli Goharian
        Empirical Methods in Natural Language Processing (EMNLP 2015)
        pdf bib video slides
      • "Matching Citation Text and Cited Spans in Biomedical Literature: a Search-Oriented Approach"
        Arman Cohan, Luca Soldaini, and Nazli Goharian
        North American Chapter of Association for Computational Linguistics (NAACL 2015)
        pdf video bib
      • "Retrieving Medical Literature for Clinical Decision Support"
        Luca Soldaini, Arman Cohan, Andrew Yates, Nazli Goharian, and Ophir Frieder
        European Conference on Information Retrieval (ECIR 2015)
        pdf bib
    • 2014
      • "Towards Citation-Based Summarization of Biomedical Literature"
        Arman Cohan, Luca Soldaini, and Nazli Goharian
        Text Analysis Conference (TAC 2014)
        pdf
      • "Query Reformulation for Clinical Decision Support Search"
        Luca Soldaini, Arman Cohan, Andrew Yates, Nazli Goharian, and Ophir Frieder
        Text Retrieval Conference (TREC 2014)
        pdf
      • "On Clinical Decision Support"
        Arman Cohan, Luca Soldaini, Andrew Yates, Nazli Goharian, and Ophir Frieder
        Proceedings of the 5th ACM Conference on Bioinformatics, Computational Biology, and Health Informatics (BCB 2014)
        pdf bib

Teaching assistantship

  • Data Mining, Spring 2015 & 2016
  • Text Mining and Analysis, Fall 2015
  • Information Retrieval, Fall 2014, 2015
  • Introduction to Information Systems, Spring 2015
  • Database Systems, Spring 2015

Talks

  • Identifying Significance of Discrepancies in Radiology Reports, Miami, FL, May, 2016.
  • Scientific Summarization, Instituto Gulbenkian de Ciencia (IGC), Lisbon, Portugal , September, 2015.
  • Scientific Article Summarization Using Citation-Context and Article's Discourse Structure, Lisbon, Portugal , September, 2015.
  • Matching Citation Text and Cited Spans in Biomedical Literature, A Search Oriented Approach, NAACL Conference, Denver, CO , June, 2015.
  • Towards Citation-Based Summarization of Biomedical Literature. Text Analysis Conference (TAC), Gaithersburg, MD, November, 2014.

Contact