I am a Computer Science PhD candidate (with distinction) at the University of Massachusetts Amherst (UMass) working with W. Bruce Croft. I am currently a research assistant at the Center for Intelligent Information Retrieval (CIIR). My research interests include various aspects of information retrieval (IR), recommender systems, and text mining. I am currently focusing on modeling the core IR problems, e.g., query representation, document representation, and ranking, via (deep) neural networks when large-scale training data is not available. I regularly publish at and serve as PC member in major IR venues. I am an ACM SIGIR Student Liaison, representing North and South Americas.

In Fall 2018, I tought CS646, the Information Retrieval course (PhD-level), at UMass Amhest. The course webpage is available here.

During my PhD, I completed two research internships at Google (summer 2016) and Microsoft (summer 2017). Prior to UMass, I was fortunate to be advised by Azadeh Shakery as a Master student at the University of Tehran, Iran.

dblp - Google Scholar


Academic Services

  • ACM SIGIR Student Liaison (representing North and South Americas) 2017 – now
  • Organizer:
  • Program Committee Member:
    • SIGIR 2018, 2019
    • WWW 2018, 2019
    • WSDM 2018, 2019
    • RecSys 2018, 2019
    • CIKM 2017, 2018, 2019
    • ICTIR 2019
    • NAACL 2019
    • ECIR 2019 (short papers)
    • Workshops: SCAI @ IJCAI 2019 – EARS @ SIGIR 2018 – KG4IR @ SIGIR 2017, 2018 – NeuIR @ SIGIR 2017 – LEARNER @ ICTIR 2017 – RecSysChallenge @ RecSys 2017
  • Journal Reviewer:
    • TOIS
    • IRJ
    • TKDE
    • TIIS
    • JASIST
    • Inf. Syst.

Selected Publications:


Invited Talks:

  • Microsoft Research, Redmond, WA, June 6, 2019
  • University of Tehran, Tehran, Iran, April 9, 2019
  • Purdue University, West Lafayette, IN, March 27-28, 2019
  • University of Illinois, Chicago, IL, March 19, 2019
  • University of Texas, Austin, TX, March 12, 2019
  • University of North Texas, Denton, TX, March 8, 2019
  • Yale University, New Haven, CT, February 28, 2019 Link
  • University of Maryland, College Park, MD, February 20-21, 2019 Link
  • University of Pittsburgh, PA, February 4-5, 2019 Link
  • UMass Data Science Talk, Amherst, MA, October 24, 2018 Link
  • Microsoft Research, Redmond, WA, September 18, 2018
  • Google Research, Mountain View, CA, March 21, 2018
  • Amazon’s A9, Palo Alto, CA, March 19, 2018 (with Bruce Croft and Qingyao Ai)
  • Yale University, New Haven, CT, March 2, 2018 Link