Curriculum Vitae: Panagiotis G. Ipeirotis

Last Modified: Thursday, 26-Jan-2012 23:55:29 EST

Latest version always available at http://pages.stern.nyu.edu/~panos/cv.html

Contact

Education

• Ph.D. (with distinction), Computer Science, Columbia University, Sep 2004
  Dissertation Title: Classifying and Searching Hidden-Web Text Databases
  Advisor: Luis Gravano
• M.Phil., Computer Science, Columbia University, Feb 2003
• M.Sc., Computer Science, Columbia University, Feb 2001
• Diploma, Computer Engineering and Informatics, University of Patras, Greece, Jul 1999
  Rank: 1st in School of Engineering (out of approximately 600 students), GPA: 9.34 / 10

Research Interests

• Crowdsourcing
• Text and Web Mining
• Economics-based Data Mining

Professional Employment

• Sep 2010 - now: Associate Professor. Department of Information, Operations, and Management Sciences, Leonard N. Stern School of Business, New York University, New York, NY, USA
• Oct 2005 - now: Affiliated Faculty, Courtesy Appointment. Computer Science Department, Courant Institute of Mathematical Sciences, New York University, New York, NY, USA
• Jan 2012 - now: Academic-in-residence, oDesk, Redwood City, CA, USA
• Jul 2011 - now: Chief Scientist, Tagasauris, New York, NY, USA
• Sep 2004 - Aug 2010: Assistant Professor. Department of Information, Operations, and Management Sciences, Leonard N. Stern School of Business, New York University, New York, NY, USA
• Sep 1999 - Aug 2004: Graduate Research Assistant. Computer Science Department, Columbia University, New York, NY, USA
• May 2003 - Aug 2003: Research Intern. Microsoft Research Ltd, Cambridge, U.K.
• Sep 1998 - Jun 1999: Research Assistant. Graphics and Multimedia Lab, Computer Engineering & Informatics Department, University of Patras, Greece
• Nov 1997 - Aug 1999: Engineer. Computing and Networking Services, Computer Technology Institute, Patras, Greece
• Oct 1995 - Nov 1997: System Administrator . Computer Engineering and Informatics Department, University of Patras, Greece
• Sep 1992 - Aug 1994: Instructor. Data Computer School, Serres, Greece

Honors and Awards

• Dec 2011: Google Research Award, with Anindya Ghose
• Apr 2011: Best Paper Award, 20th International World Wide Web Conference (WWW 2011)
• May 2010: Google Research Award, with Vagelis Hristidis
• Apr 2010: New York University Research Challenge Grant
• Apr 2010: NYU/Poly Seed Grant, with Torsten Suel
• Mar 2009: Marketing Science Institute Grant, with Anindya Ghose
• Aug 2008: Best Paper Runner Up, ACM International Conference on Knowledge Management and Data Mining (KDD 2008)
• Jul 2007: NET Institute Summer Grant, with Anindya Ghose
• Mar 2007: Microsoft Virtual Earth Award, Unrestricted Cash Gift, $35,000, with Anindya Ghose
• Jan 2007: NSF CAREER Award, IIS-0643846 $499,957 for February 2007-January 2012
• Jun 2006: Best Paper Award, ACM International Conference on Management of Data (SIGMOD 2006)
• May 2006: Microsoft Live Labs Search Award, Unrestricted Cash Gift, $37,000, with Anindya Ghose
• Aug 2005: Departmental Nominee, ACM Doctoral Dissertation Award, Computer Science Department, Columbia University
• Apr 2005: Best Paper Award, IEEE International Conference on Data Engineering (ICDE 2005)
• Oct 2004: Award for Excellence in Teaching, School of Engineering, Columbia University
• Jul 2004: Ph.D. awarded with distinction, Computer Science Department, Columbia University
• Feb 2002: Fellowship, DIMACS (Center for Discrete Mathematics and Theoretical Computer Science)
• Jun 2001: Best Paper Award Finalist, ACM+IEEE Joint Conference on Digital Libraries (JCDL 2001)
• May 2001: Ph.D. Teaching Award of Excellence, Computer Science Department, Columbia University
• Sep 2000: Award for Excellence in Teaching, School of Engineering, Columbia University
• Apr 2001: Honorary Distinction Award, Technical Chamber of Greece
• Sep 1999 - Aug 2001: Fellowship, Empeirikio Foundation, Greece
• Apr 2000: Honorary Distinction Award, Technical Chamber of Greece
• May 1995 - May 1999: Five Fellowships from Greek Scholarship Foundation
• Jul 1994: Member of the Greek Olympiad team in the 26th International Chemistry Olympiad (Oslo 1994)
• May 1994: Gold Medal, 8th National Greek Competition in Chemistry

Teaching Experience

• IOMS Department, Stern School of Business, New York University, New York
  • Fall 2011: Instructor, Information Technology in Business and Society (C20.0001), Instructor Rating: 6.2/7.0
  • Fall 2010: Instructor, Information Technology in Business and Society (C20.0001), Instructor Rating: 5.4/7.0
  • Fall 2009: Instructor, Information Technology in Business and Society (C20.0001), Instructor Rating: 6.3/7.0
  • Fall 2008: Instructor, Search and the New Economy (B20.3136), Instructor Rating: 5.7/7.0
  • Fall 2008: Instructor, Information Technology in Business and Society (C20.0001), Instructor Rating: 6.4/7.0
  • Winter 2008: Instructor, Search and the New Economy (B20.3136), Instructor Rating: 6.3/7.0
  • Fall 2007: Instructor, Information Technology in Business and Society (C20.0001), Instructor Rating: 6.6/7.0
  • Spring 2007: Instructor, Information Systems Technical Research Seminar (B20.3383), Instructor Rating: 7.0/7.0
  • Fall 2006: Instructor, Information Technology in Business and Society (C20.0001), Instructor Rating: 6.6/7.0
  • Spring 2006: Instructor, Information Systems Technical Research Seminar (B20.3383), Instructor Rating: 7.0/7.0
  • Spring 2006: Instructor, Information Technology in Business and Society (C20.0001), Instructor Rating: 5.9/7.0
  • Spring 2005: Instructor, Computer-based Systems for Management Support (C20.0001), Instructor Rating: 5.7/7.0
• Computer Science Department, Columbia University, New York
  • Spring 2003: Teaching Assistant, Advanced Database Systems (COMS 6111)
  • Spring 2002: Teaching Assistant, Advanced Database Systems (COMS 6111)
  • Spring 2001: Teaching Assistant, Advanced Database Systems (COMS 6111)
  • Spring 2000: Teaching Assistant, Advanced Database Systems (COMS 6111)
  • Spring 2001: Instructor, Columbia Video Network, Advanced Database Systems (COMS 6111)
  • Summer 2000: Instructor, Columbia Video Network, Advanced Database Systems (COMS 6111)
• Computer Engineering and Informatics Department, University of Patras, Greece
  • Spring 1996: Grader, Course: Programming Languages
• Data Computer School, Serres, Greece
  • 1992-1994: Instructor, Course: Programming Languages and Operating Systems

Academic Activities

• Editorial Board:
  • 2012: Associate Editor, Information Systems Research, Special Issue on Social Media and Business Transformation
  • 2010-now: Associate Editor, IEEE Transactions on Knowledge and Data Engineering (TKDE)
  • 2009-now: Associate Editor: International Journal of Cooperative Information Systems (IJCIS)
• Program Committee Chair:
  • 2012: Thirteenth ACM Conference on Electronic Commerce (ACM EC'12), co-chaired with Kevin Leyton-Brown
  • 2011: 3rd Human Computation Workshop (HCOMP 2011), co-chaired with Luis von Ahn
  • 2010: Fourth International Workshop on Ranking in Databases (DBRank 2010), co-chaired with Amelie Marian
• Organizing Committee:
  • 2012: 4th Human Computation Workshop (HCOMP 2012)
  • 2011: 3rd Human Computation Workshop (HCOMP 2011)
  • 2010: 16th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD-2010), 2nd Human Computation Workshop (HCOMP 2010)
  • 2009: 1st Human Computation Workshop (HCOMP 2009)
  • 2006: Fourth New York Area DB/IR day (DB/IR, Fall 2006)
• Program Committee Member:
  • 2012: WWW 2012, PODS 2012
  • 2011: CIKM 2011 (Senior PC Member), KDD 2011, IJCAI 2011, WWW 2011, SIGIR 2011, WebDB 2011, CSDM 2011
  • 2010: EC 2010, KDD 2010, VLDB 2010, SIGIR 2010 (Workshops), WWW 2010, ICDE 2010, WebDB 2010, Social Media Analytics workshop 2010 (at KDD 2010), HCOMP 2010 (at KDD 2010)
  • 2009: ACM EC'09 (Senior PC Member), ACM SIGIR 2009, VLDB 2009, WWW 2009, WSCD 2009, HCOMP 2009
  • 2008: VLDB 2008, ACM SIGMOD 2008, ACM SIGIR 2008, ACM KDD 2008, IEEE ICDE 2008, WWW 2008, DBRank 2008
  • 2007: VLDB 2007, ACM SIGMOD 2007 (Demonstrations), ACM SIGIR 2007, ICEC 2007, DBRank 2007, TDMM 2007, FIND 2007
  • 2006: ACM SIGMOD 2006, ACM SIGIR 2006, WWW 2006, IEEE ICDE 2006, WIRI 2006, IQIS 2006
  • 2005: ACM SIGIR 2005, WWW 2005, SPIRE 2005, ACM Hypertext 2005, ACM Hypertext 2005 Workshop on Peer to Peer and Service Oriented Hypermedia
• Ad-hoc Journal Referee: Management Science, Marketing Science, Information Systems Research, ACM Transactions on the Web, ACM Transactions on Information Systems, ACM Transactions on Database Systems, IEEE Transactions on Knowledge and Data Engineering, IEEE Transactions on Parallel and Distributed Systems, Elsevier Information Systems, INFORMS Journal on Computing, IEEE Computer, IEEE Internet Computing,
• External Conference Reviewer: ACM CHI 2011, ACM SIGMOD 2005, IEEE ICDE 2004, ACM SIGMOD 2002, VLDB 2002, IEEE ICDE 2001, ACM SIGIR 2001
• NSF Funding Panel: March 2007, Oct 2008, Apr 2010
• Web Chair: WebDB 2004
  
• Ph.D. Advisor:
  • Nikolay Archak, (graduated November 2011; current employment: Two Sigma Investments)
  • Wisam Dakka (main advisor: Luis Gravano; graduated November 2008; current employment: Software Engineer, Search Quality, Google)
  • Alpa Jain (main advisor: Luis Gravano; graduated September 2008; current employment: Scientist, Yahoo! Labs)
  • Marios Kokkodis
  • Beibei Li (co-advised with Anindya Ghose)
  • Thi Duong Nguyen (provisional)
  • Evan Sandhaus (provisional)
  • Jing Wang
• Ph.D. Dissertation Committees:
  • Nikolay Archak, New York University, IOMS Department, Nov 2011
  • Wisam Dakka, Columbia University, Computer Science Department, May 2008
  • Alpa Jain, Columbia University, Computer Science Department, May 2008
  • Caryn Conley, New York University, IOMS Department, May 2008
  • Gal Oestreicher-Singer, New York University, IOMS Department, December 2007
  • Ziyang Wang, New York University, Computer Science Department, May 2006
  Ph.D. Thesis Proposal Committees:
  • Beibei Li, New York University, IOMS Department, Oct 2011
  • Daniel Engler, New York University, Management Department, December 2010
  • Nikolay Archak, New York University, IOMS Department, November 2009
  • Tianyi Jiang, New York University, IOMS Department, December 2007
  • Wisam Dakka, Columbia University, Computer Science Department, February 2007
  • Alpa Jain, Columbia University, Computer Science Department, January 2007
  • Gal Oestreicher-Singer, New York University, IOMS Department, May 2006
  • Caryn Conley, New York University, IOMS Department, December 2005
• M.Sc. Students Supervision

Invited Talks

• May 2012: Technicolor Research Labs, Palo Alto, CA
• April 2012: Google Research, Mountain View, Tech Talk
• Mar 2012: Sapienza University of Rome, High School of Advanced Studies, Invited Speaker: The Wisdom of the Crowds and Crowdsourcing Applications
• Feb 2012: Rutgers Business School, MSIS Departmental Colloquium
• Feb 2012: NSF Workshop on Social Networks and Mobility in the Cloud
• Feb 2012: New York University, Computer Science Department, Machine Learning Seminar: Towards a Theory Model for Product Search
• Feb 2012: Stanford University, Computer Science Department, InfoSeminar: Crowdsourcing, Quality Management, and Scalability
• Dec 2011: Second Workshop on Computational Social Science and the Wisdom of Crowds at NIPS 2011, Invited Talk: Quality Assurance and Connections with Machine Learning
• Dec 2011: Massachusetts Institute of Technology, HCI Seminar: Quality Assurance in Crowdsourcing and Connections with Machine Learning
• Dec 2011: Google Research, New York: Towards a Theory Model for Product Search
• Nov 2011: Northeastern University, Computer Science Department: Crowdsourcing using Mechanical Turk: Quality Management and Scalability
• Nov 2011: Harvard University, Computer Science Department: Crowdsourcing using Mechanical Turk: Quality Management and Scalability
• Oct 2011: Fall 2011 DB/IR Day, Keynote Talk: Crowdsourcing using Mechanical Turk: Quality Management and Scalability
• Sep 2011: IBM T.J. Watson Research, Hawthorne, NY: Crowdsourcing using Mechanical Turk: Quality Management and Scalability
• Sep 2011: Strata Jumpstart 2011, Invited Talk: Big Data, Stupid Decisions
• May 2011: CHI 2011 Crowdsourcing and Human Computation: The Need for Standardization in Crowdsourcing
• Apr 2011: NYC Crowdsourcing Meetup: A Crowdsourcing Case Study, AdSafe Media
• Apr 2011: WWW 2011 Panel: The Computer is the New Sewing Machine: Benefits and Perils of Crowdsourcing
• Apr 2011: WWW 2011 Tutorial: Managing Crowdsourced Human Computation: A Tutorial
• Apr 2011: Athens University of Economics and Business, Informatics Department Seminar: Crowdsourcing using Mechanical Turk: Quality Management and Scalability
• Mar 2011: Information Integration on the Web Workshop at WWW2011, Keynote Talk: Crowdsourcing using Mechanical Turk: Quality Management and Scalability
• Feb 2011: National Institute for Computer-Assisted Reporting (NICAR), Invited Talk: When you need lots of eyes, try Mechanical Turk: Finding lost hikers to data entry
• Feb 2011: John Hopkins University, Computer Science Department Seminar, Get Another Label? Improving Data Quality and Machine Learning using Multiple, Noisy Labelers
• Feb 2011: The Ladders, New York, NY: Crowdsourcing using Mechanical Turk Quality Management and Scalability
• Feb 2011: New York University, Computer Science Department, Machine Learning Seminar: Get Another Label? Improving Data Quality and Machine Learning Using Multiple, Noisy Labelers
• Feb 2011: Crowdsourcing and Data Mining, Workshop at WSDM 2011, Keynote Talk: Crowdsourcing using Mechanical Turk Quality Management and Scalability
• Jan 2011: University of Pittsburgh, Computer Science Department, Database Seminar: Analyzing User-Generated Content using Econometrics
• Jan 2011: Carnegie Mellon University, Language Technologies Institute: Get Another Label? Improving Data Quality and Machine Learning Using Multiple, Noisy Labelers
• Dec 2010: National Academy of Sciences Frontiers of Science: Collective Intelligence and the role of Human Computation
• Nov 2010: University of Massachusetts-Amherst, Computer Science Department: Get Another Label? Using Multiple Noisy Labelers for Data Mining
• Nov 2010: Fordham University, Computer Science Department, Analyzing User Generated Content using Econometrics
• Jun 2010: Rose Tech Ventures, Crowdsourcing: Quality Assurance and Scalability
• May 2010: ProPublica, Crowdsourcing for Data Collection and Cleaning
• Jan 2010: FXPal, Improving Data Quality and Data Mining Using Multiple, Noisy Labelers
• Jan 2010: Microsoft Research Silicon Valley, Analyzing User Generated Content using Econometrics
• Jan 2010: "Crowdsourcing Work" San Francisco Meetup: Spam? No Thanks! Detecting Spam and Biases of Amazon Mechanical Turk Workers
• Jan 2010: Xerox PARC, Analyzing User Generated Content using Econometrics
• Oct 2009: NYU Library, Text Mining of Electronic News Content for Economic Research
• Jun 2009: A9.com: Improving Data Quality and Data Mining Using Multiple, Noisy Labelers
• Mar 2009: IBM Watson Research Center: Improving Data Quality and Data Mining Using Multiple, Noisy Labelers
• Mar 2009: New York Tech Meetup: The EconoMining Project at NYU
• Feb 2009: Carnegie Mellon University, Opinion Mining using Econometrics
• Jan 2009: New York Semantic Web Meetup: The EconoMining Project at NYU
• Jan 2009: New York University, Computer Science Department, Opinion Mining using Econometrics
• Nov 2008: University of Waterloo, Opinion Mining using Econometrics
• Oct 2008: New York Public Library, Text Mining of Electronic News Content for Economic Research, (Forum "On the Record": On Electronic Media and the Preservation of News)
• Jun 2008: Yahoo! Research: Improving Data Quality and Data Mining using Multiple, Noisy Labelers
• Dec 2007: Microsoft Research Cambridge: Opinion Mining using Econometrics: A Case Study on Reputation Systems
• Jul 2007: Microsoft Live Labs Faculty Summit: Opinion Mining using Econometrics: A Case Study on Reputation Systems
• Jul 2007: AT&T Labs - Research: Opinion Mining using Econometrics: A Case Study on Reputation Systems
• Mar 2007: Invited Talk, 18th IEICE Data Engineering Workshop (DEWS), Hiroshima, Japan: Towards a Query Optimizer for Text-Centric Tasks
• Feb 2007: Columbia University: Opinion Mining using Econometrics: A Case Study on Reputation Systems
• Sep 2006: Polytechnic University: Opinion Mining using Econometrics: A Case Study on Reputation Systems
• Jul 2006: Microsoft Research: Opinion Mining using Econometrics: A Case Study on Reputation Systems
• Dec 2005: Athens University of Economics and Business: Classifying and Searching Hidden-Web Databases
• Oct 2005: New Jersey Institute of Technology: Classifying and Searching Hidden-Web Databases
• Nov 2004: University of Toronto: Classifying and Searching Hidden-Web Databases
• Jun 2004: University of Thessaly, Greece: QProber: Classifying and Searching Hidden-Web Databases
• Apr 2004: Purdue University; University of California, Los Angeles; University of Massachusetts, Amherst: QProber: Classifying and Searching Hidden-Web Databases (job talk)
• Mar 2004: University of British Columbia, Canada; University of Maryland: QProber: Classifying and Searching Hidden-Web Databases (job talk)
• Feb 2004: New York University: QProber: Classifying and Searching Hidden-Web Databases (job talk)
• Aug 2002: DIMACS Summer School Tutorial on New Frontiers in Data Mining: Probe, Count, and Classify: Categorizing Hidden Web Databases

Work in Progress

• Facilitating Document Annotation using Querying and Document Value, E. Ruiz, V. Hristidis, P. Ipeirotis
• The Dimensions of Reputation in Electronic Markets, A. Ghose, P. Ipeirotis, and A. Sundararajan
• Repeated Labeling Using Multiple, Noisy Labelers, P. Ipeirotis, F. Provost, V. Sheng, and J. Wang
  
• Modeling Dependencies in Prediction Markets, N. Archak and P. Ipeirotis

Patent

• System, method, software arrangement and computer-accessible medium for incorporating qualitative and quantitative information into an economic model, A. Sundararajan, P. Ipeirotis, A. Ghose, US Patent 7,848,979

Papers in Journals

• Designing Ranking Systems for Hotels on Travel Search Engines by Mining User-Generated and Crowd-Sourced Content, A. Ghose, P. Ipeirotis, and B. Li, Marketing Science, 2012
• Answering General Time Sensitive Queries, W. Dakka, L. Gravano, and P. Ipeirotis, IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 24, No 2, Feb 2012
• Relevance-based Retrieval on Hidden-Web Text Databases without Ranking Support, V. Hristidis, Y. Hu, and P. Ipeirotis, IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 23, No. 10, Oct 2011
• Estimating the Helpfulness and Economic Impact of Product Reviews: Mining Text and Reviewer Characteristics, A. Ghose and P. Ipeirotis, IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 23, No. 10, Oct 2011
• Deriving the Pricing Power of Product Features by Mining Consumer Reviews, N. Archak, A. Ghose, and P. Ipeirotis, Management Science, Vol. 57, No 8, August 2011
• Analyzing the Amazon Mechanical Turk Marketplace, P. Ipeirotis, ACM XRDS (Crossroads), Vol. 17, No 2, Winter 2010
• Running Experiments on Amazon Mechanical Turk, G. Paolacci, J. Chandler, P. Ipeirotis, Judgment and Decision Making, Vol. 5, No. 5, August 2010
• A Quality-Aware Optimizer for Information Extraction, A. Jain and P. Ipeirotis, ACM Transactions on Database Systems (TODS), April 2009
• The EconoMining Project at NYU: Studying the Economic Value of User-Generated Content on the Internet, A. Ghose and P. Ipeirotis, Journal of Revenue and Pricing Management, vol. 8, no 2-3, March 2009
• Taxonomy Design for Faceted Search, W. Dakka and P. Ipeirotis, Dynamic Taxonomies and Faceted Search: Theory, Practice, and Experience; The Information Retrieval Series, 2009, Volume 25, 175-213, DOI: 10.1007/978-3-642-02359-0_7, Springer, 2009 (Book Chapter)
• Building Query Optimizers for Information Extraction: The SQoUT Project, A. Jain, P. Ipeirotis, and L. Gravano, SIGMOD Record, Special Issue on "Managing Information Extraction," vol. 37, no. 4, December 2008 (Invited)
• Classification-Aware Hidden-Web Text Database Selection, P. Ipeirotis and L. Gravano, ACM Transactions on Information Systems (TOIS), April 2008
• Searching Digital Libraries, P. Ipeirotis, Encyclopedia of Database Systems, Springer, 2008 (Book Chapter)
• Towards a Query Optimizer for Text-Centric Tasks, P. Ipeirotis, E. Agichtein, P. Jain, and L. Gravano, ACM Transactions on Database Systems (TODS), vol. 32, no. 4, December 2007
• Modeling and Managing Content Changes in Text Databases, P. Ipeirotis, A. Ntoulas, J. Cho, and L. Gravano, ACM Transactions on Database Systems (TODS), vol. 32, no. 3, September 2007
• Duplicate Record Detection: A Survey, A. Elmagarmid, P. Ipeirotis, and V. Verykios, IEEE Transactions on Knowledge and Data Engineering (TKDE), vol. 19, no. 1, January 2007
• QProber: A System for Automatic Classification of Hidden-Web Databases, L. Gravano, P. Ipeirotis, and M. Sahami, ACM Transactions on Information Systems (TOIS), vol. 21, no. 1, January 2003
• Query- vs. Crawling-based Classification of Searchable Web Databases, L. Gravano, P. Ipeirotis, and M. Sahami, IEEE Data Engineering Bulletin, vol. 25, no. 1, March 2002 (Invited)
• Using q-grams in a DBMS for Approximate String Processing, L. Gravano, P. Ipeirotis, H. V. Jagadish, N. Koudas, S. Muthukrishnan, L. Pietarinen, and D. Srivastava, IEEE Data Engineering Bulletin, vol. 24, no. 4, December 2001 (Invited)

Papers in Refereed Conferences

• Content and Context: Identifying the Impact of Qualitative Information on Consumer Choice, S. Aral, P. Ipeirotis, S. Taylor, Proceedings of the International Conference on Information Systems (ICIS), 2011
• Towards a Theory Model for Product Search, B. Li, A. Ghose, and P. Ipeirotis, Proceedings on the 20th International World-Wide Web Conference (WWW), 2011 (82/658 = 12.4% accepted; Best Paper Award)
• Designing Ranking Systems for Hotels on Travel Search Engines to Enhance User Experience, B. Li, A. Ghose, and P. Ipeirotis, Proceedings of the International Conference on Information Systems (ICIS), 2010
• Ranked Queries over Sources with Boolean Query Interfaces without Ranking Support, (short paper), V. Hristidis, Y. Hu, and P. Ipeirotis, Proceedings of the 25th IEEE International Conference on Data Engineering (ICDE), 2010 (~20% accepted)
• Modeling Volatility in Prediction Markets, N. Archak and P. Ipeirotis, Proceedings for the 10th ACM Conference on Electronic Commerce (EC), 2009 (40/158 = 25% accepted)
• Query by Document, Y. Yang, N. Bansal, W. Dakka, P. Ipeirotis, N. Koudas, and D. Papadias, Proceedings of the Second ACM International Conference on Web Search and Data Mining (WSDM), 2009 (29/170 = 17% accepted)
• Join Optimization of Information Extraction Output: Quality Matters!, A. Jain, P. Ipeirotis, A. Doan, and L. Gravano, Proceedings of the 25th IEEE International Conference on Data Engineering (ICDE), 2009 (93/554 = 16.7% accepted)
• Get Another Label? Improving Data Quality and Data Mining Using Multiple, Noisy Labelers, (), V. Sheng, F. Provost, and P. Ipeirotis, Proceedings of the Fourteenth ACM International Conference on Knowledge Discovery and Data Mining (KDD), 2008 (50/~500 < 10% accepted; Best Paper Award Runner Up)
• Automatic Extraction of Useful Facet Hierarchies from Text Databases, W. Dakka and P. Ipeirotis, Proceedings of the 24th IEEE International Conference on Data Engineering (ICDE), 2008 (75/617 = 12.1% accepted)
• Show me the Money! Deriving the Pricing Power of Product Features by Mining Consumer Reviews, N. Archak, A. Ghose, and P. Ipeirotis, Proceedings of the Thirteenth ACM International Conference on Knowledge Discovery and Data Mining (KDD), 2007 (~100/513 < 20% accepted)
• Opinion Mining Using Econometrics: A Case Study on Reputation Systems, A. Ghose, P. Ipeirotis, and A. Sundararajan, Proceedings of the 45th Annual Meeting of the Association for Computational Linguistics (ACL), 2007 (132/588 = 22% accepted)
• Designing Novel Review Ranking Systems: Predicting Usefulness and Impact of Reviews, A. Ghose and P. Ipeirotis, Proceedings of the Ninth International Conference on Electronic Commerce (ICEC), 2007
• To Search or to Crawl? Towards a Query Optimizer for Text-Centric Tasks, P. Ipeirotis, E. Agichtein, P. Jain, and L. Gravano, in Proceedings of the 2006 ACM International Conference on Management of Data (SIGMOD), 2006 (58/446 = 13% accepted; Best Paper Award)
• Automatic Construction of Multifaceted Browsing Interfaces, W. Dakka, P. Ipeirotis, and K. Wood, Proceedings of the 2005 ACM International Conference on Information and Knowledge Management (CIKM), 2005 (76/425 = 18% accepted)
• Modeling and Managing Content Changes in Text Databases, P. Ipeirotis, A. Ntoulas, J. Cho, and L. Gravano, Proceedings of the 21st IEEE International Conference on Data Engineering (ICDE), 2005 (67/521 = 13% accepted; Best Paper Award)
• When one Sample is not Enough: Improving Text Database Selection Using Shrinkage, P. Ipeirotis and L. Gravano, Proceedings of the 2004 ACM International Conference on Management of Data (SIGMOD), 2004 (69/431 = 16% accepted)
• Text joins in an RDBMS for Web Data Integration, L. Gravano, P. Ipeirotis, N. Koudas, and D. Srivastava, Proceedings of the 12th International World-Wide Web Conference (WWW), 2003 (13% accepted, more than 600 submissions)
• Text Joins for Data Cleansing and Integration in an RDBMS, (short paper), L. Gravano, P. Ipeirotis, N. Koudas, and D. Srivastava, Proceedings of the 19th IEEE International Conference on Data Engineering (ICDE), 2003
• Distributed Search over the Hidden-Web: Hierarchical Database Sampling and Selection, P. Ipeirotis and L. Gravano, in Proceedings of the 28th International Conference on Very Large Databases (VLDB), 2002 (69/432 = 16% accepted)
• Extending SDARTS: Extracting Metadata from Web Databases and Interfacing with the Open Archives Initiative, P. Ipeirotis, T. Barry, and L. Gravano, Proceedings of the Second ACM+IEEE Joint Conference on Digital Libraries (JCDL), 2002 (33% accepted)
• Approximate String Joins in a Database (Almost) for Free, L. Gravano, P. Ipeirotis, H.V. Jagadish, N. Koudas, S. Muthukrishnan, and D. Srivastava, Proceedings of the 27th International Conference on Very Large Databases (VLDB), 2001 (59/339 = 17% accepted)
• Probe, Count, and Classify: Categorizing Hidden-Web Databases, P. Ipeirotis, L. Gravano, and M. Sahami, Proceedings of the 2001 ACM International Conference on Management of Data (SIGMOD), 2001 (15% accepted)
• SDLIP + STARTS = SDARTS. A Protocol and Toolkit for Metasearching, N. Green, P. Ipeirotis, and L. Gravano, Proceedings of the First ACM+IEEE Joint Conference on Digital Libraries (JCDL), 2001

Papers in Refereed Workshops and Demonstration Sessions

• Examining the Impact of Search Engine Ranking and Personalization on Consumer Behavior: Combining Bayesian Modeling with Randomized Field Experiments, B. Li, A.Ghose, P. Ipeirotis, Workshop on Information Systems and Economics (WISE 2011), December, 2011.
• Beat the Machine: Challenging Workers to Find the Unknown Unknowns, J. Attenberg, P.G. Ipeirotis, F. Provost, Proceedings of the Third Human Computation Workshop (HCOMP), 2011
• What's the Right Price? Pricing Tasks for Finishing on Time, S. Faridani, B. Hartmann, P. Ipeirotis, Proceedings of the Third Human Computation Workshop (HCOMP), 2011
• The Need for Standardization in Crowdsoursing, P. Ipeirotis, J.J. Horton, Workshop on Crowdsourcing and Human Computation at CHI, 2011
• A Demo Search Engine for Products, B. Li, A.Ghose, P. Ipeirotis, Proceedings of the 20th International World-Wide Web Conference (WWW), 2011
• Estimating the Completion Time of Crowdsourced Tasks Using Survival Analysis Models. J. Wang, S. Faridani, P Ipeirotis. Workshop on Crowdsourcing for Search and Data Mining (WSDM11-CSDM), 2011.
• Quality Management on Amazon Mechanical Turk, P. Ipeirotis, F. Provost, J. Wang, Proceedings of the Second Human Computation Workshop (HCOMP), 2010
• Improving Product Search with Economic Theory, B. Li, P. Ipeirotis, A. Ghose, Workshops of 2010 IEEE 26th International Conference on Data Engineering (ICDE), 2010
• Answering General Time Sensitive Queries, W. Dakka, L. Gravano, and P. Ipeirotis, Proceedings of the 2008 ACM CIKM International Conference on Information and Knowledge Management (CIKM), 2008
• Stay Elsewhere? Improving Local Search for Hotels Using Econometric Modeling and Image Classification, B. Li, A. Ghose, and P. Ipeirotis, Proceedings of the Sixth International Workshop on the Web and Databases (WebDB 2008), 2008 (14/30 = 46% accepted)
• The Impact of Information Disclosure on Stock Market Returns: The Sarbanes-Oxley Act and the Role of Media as an Information Intermediary, K. Balakrishnan, A. Ghose, and P. Ipeirotis, Proceedings of the Seventh Workshop on the Economics of Information Security (WEIS 2008), 2008
• Multifaceted Browsing over Large Databases of Text-Annotated Objects, W. Dakka, P. Ipeirotis, and K. Wood, Proceedings of the 23rd IEEE International Conference on Data Engineering, Demonstrations (ICDE 2007), 2007 (28/73 = 38% accepted)
• Designing Ranking Systems for Consumer Reviews: The Impact of Review Subjectivity on Product Sales and Review Quality, A. Ghose and P. Ipeirotis, Proceedings of the 2006 Workshop on Information Technology and Systems (WITS 2006), 2006 (36/105 = 35% accepted)
• Automatic Discovery of Useful Facet Terms, W. Dakka, R. Dayal, and P. Ipeirotis, Proceedings of the ACM SIGIR 2006 Workshop on Faceted Search, 2006
• Reputation Premiums in Electronic Peer-to-Peer Markets: Analyzing Textual Feedback and Network Structure, A. Ghose, P. Ipeirotis, and A. Sundararajan, ACM SIGCOMM 2005 Workshop Proceedings, Third Workshop on Economics of Peer-to-Peer Systems, (P2PEcon 2005), 2005
• Modeling Query-Based Access to Text Databases, E. Agichtein, P. Ipeirotis, and L. Gravano, Proceedings of the Sixth ACM SIGMOD International Workshop on the Web and Databases (WebDB 2003), 2003 (25% accepted)
• PERSIVAL Demo: Categorizing Hidden-Web Resources, P. Ipeirotis, L. Gravano, and M. Sahami, Proceedings of the First ACM+IEEE Joint Conference on Digital Libraries (JCDL 2001), 2001
• Automatic Classification of Text Databases through Query Probing, P. Ipeirotis, L. Gravano, and M. Sahami, Proceedings of the Third International Workshop on the Web and Databases, (WebDB 2000), 2000 (29% accepted)

Lightly Refereed and Non-refereed Publications and Presentations

• The computer is the new sewing machine: benefits and perils of crowdsourcing, Praveen Paritosh, Panos Ipeirotis, Matt Cooper, Siddharth Suri; Panel at the 20th International World-Wide Web Conference (WWW), 2011
• Managing Crowdsourced Human Computation: A Tutorial, P. Ipeirotis and P. Paritosh; Tutorial at the 20th International World-Wide Web Conference (WWW), 2011
• Managing Crowdsourced Workers, J. Wang, P. Ipeirotis, and F. Provost, Winter Conference on Business Intelligence, 2011
• Designing Ranking Systems for Hotels on Travel Search Engines by Mining User-Generated and Crowd-Sourced Content. Beibei Li, Anindya Ghose and Panagiotis G. Ipeirotis. Sixth bi-annual Conference on The Economics of Intellectual Property, Software and the Internet, Jan 2011
• Extracting Economic Value from Online User-Generated Content: Combining Text Mining with Demand Estimation in the Hotel Industry. Beibei Li, Anindya Ghose and Panagiotis G. Ipeirotis. In Proceedings of the 32nd INFORMS Marketing Science Conference, Cologne, Germany, June 2010.
• Mining User-Generated and Crowd-Sourced Content on the Internet to Estimate Demand for Hotels. Beibei Li, Anindya Ghose and Panagiotis G. Ipeirotis. The Sixth Symposium on Statistical Challenges in Electronic Commerce Research (SCECR 2010). Austin, TX, June 2010.
• The Economic Impact of User-Generated Content on the Internet: Combining Text Mining with Demand Estimation in the Hotel Industry, A. Ghose, B. Li, and P. Ipeirotis, Proceedings of the 20th Workshop on Information Systems and Economics (WISE 2009)
• Cramer's Rule: How Information Content Moves Markets, S. Aral, P. Ipeirotis, and S. Taylor, Proceedings of the 20th Workshop on Information Systems and Economics (WISE 2009)
• Get Another Label? Improving Data Quality and Data Mining Using Multiple, Noisy Labelers, S. Sheng, F. Provost, P. Ipeirotis, Winter Conference on Business Intelligence, 2009
• Multi-labeling When Data Preprocessing Is Costly, V. Sheng, F. Provost, P. Ipeirotis, INFORMS Annual Meeting, 2008
• Improving Data Quality and Data Mining Using Multiple, Noisy Labelers, V. Sheng, F. Provost, P. Ipeirotis, 3rd Annual Machine Learning Symposium, 2008
• Detecting Important Events Using Prediction Markets, Text Mining, and Volatility Modeling, G. Tziralis and P. Ipeirotis, Third Workshop on Prediction Markets, 2008
• Noisy Multi-Labeling for Data Mining, V. Sheng, F. Provost, and P. Ipeirotis, Fourth Research Symposium on Statistical Challenges in E-Commerce, 2008
• Measuring the Pricing Power of User-Generated Reviews for Hedonic Goods, N. Archak, A. Ghose, and P. Ipeirotis, Fourth Research Symposium on Statistical Challenges in E-Commerce, 2008
• Stay Elsewhere? The Economic Impact of Location-based Hotel Features: A View from Remote Sensing Image Analysis, B. Li, A. Ghose, and P. Ipeirotis, Winter Conference on Business Intelligence, 2008
• Designing Novel Review Ranking Systems on the Web: Combining Economics with Opinion Mining, A. Ghose and P. Ipeirotis, Third Research Symposium on Statistical Challenges in E-Commerce, 2007
• Towards Automating the Pricing Power of Product Attributes: An Analysis of Online Product Reviews, N. Archak, A. Ghose, and P. Ipeirotis, Winter Conference on Business Intelligence, 2007
• Designing Ranking Systems for Consumer Reviews: The Economic Impact of Customer Sentiment in Electronic Markets, A. Ghose and P. Ipeirotis, Proceedings of the International Conference on Decision Support Systems (ICDSS 2007), 2007
• The Dimensions of Reputation in Electronic Markets, A. Ghose, P. Ipeirotis, and A. Sundararajan, Second Research Symposium on Statistical Challenges in E-Commerce, 2006

Society membership

• Member of ACM since 1998
• Member of IEEE since 1998
• Technical Chamber of Greece, Chartered Engineer since 1999

University Service

• 2007-now: Stern Technology Advisory Committee, New York University
• 2004-now: PhD Committee, IOMS Department, New York University
• 2010-2011: Stern PhD Program Taskforce, New York University
• 2010: Stern Research Resources Committee, New York University
• 2006: Global Task Force, Stern School of Business, New York University
• 2006-2007: NYU Institutional Repository Working Group, New York University
• 2005-2007: Information Systems / CeDER Research Seminar Coordinator, IOMS Department, New York University
• 1999-2004: PhD Admissions Committee, Student member, Computer Science Department, Columbia University
• 2000-2001: Webmaster, Hellenic Association, Columbia University
• 2000-2002: Webmaster, Database Research Group, Columbia University
• 1995-1998: Board of Directors, Elected Student Representative, Computer Engineering and Informatics Department, University of Patras, Greece