Publications

Group by:

Working papers

  1. Jan 2011
    Unrefereed

    Managing Crowdsourcing Workers • Jing Wang, Panagiotis G. Ipeirotis, and Foster Provost • Winter Conference on Business Intelligence, 2011

  2. Dec 2010
    Unrefereed

    Modeling Dependency in Prediction Markets • Nikolay Archak and Panagiotis G. Ipeirotis • NYU Center for Digital Economy Research Working Paper No. CEDER-10-05

  3. Mar 2010
    Unrefereed

    Demographics of Mechanical Turk • Panagiotis G. Ipeirotis • NYU Center for Digital Economy Research Working Paper CeDER-10-01

  4. Mar 2009
    Unrefereed

    The Dimensions of Reputation in Electronic Markets • Anindya Ghose, Panagiotis G. Ipeirotis, and Arun Sundararajan • NYU Center for Digital Economy Research Working Paper No. CeDER-06-02

Journals

  1. Feb 2013
    Refereed

    Repeated Labeling Using Multiple Noisy Labelers • Panagiotis G. Ipeirotis, Foster Provost, Victor S. Sheng, and Jing Wang • Data Mining and Knowledge Discovery

  2. Jan 2013
    Refereed

    Facilitating Document Annotation using Content and Querying Value • Eduardo J. Ruiz, Vagelis Hristidis, and Panagiotis G. Ipeirotis • IEEE Transactions on Knowledge and Data Engineering (TKDE)

  3. May 2012
    Refereed

    Designing Ranking Systems for Hotels on Travel Search Engines by Mining User-Generated and Crowd-Sourced Content • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Marketing Science, Vol. 31, No. 3, May/June 2012

  4. Feb 2012
    Refereed

    Answering General Time-Sensitive Queries • Wisam Dakka, Luis Gravano, and Panagiotis G. Ipeirotis • IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 24, No. 2, February 2012

  5. Oct 2011
    Refereed

    Relevance-Based Retrieval on Hidden-Web Text Databases without Ranking Support • Vagelis Hristidis, Yuheng Hu, and Panagiotis G. Ipeirotis • IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 23, No. 10, October 2011

  6. Oct 2011
    Refereed

    Estimating the Helpfulness and Economic Impact of Product Reviews: Mining Text and Reviewer Characteristics • Anindya Ghose and Panagiotis G. Ipeirotis • IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 23, No. 10, October 2011

  7. Aug 2011
    Refereed

    Deriving the Pricing Power of Product Features by Mining Consumer Reviews • Nikolay Archak, Anindya Ghose, and Panagiotis G. Ipeirotis • Management Science, Vol. 57, No 8, August 2011

  8. Dec 2010
    Refereed

    Analyzing the Amazon Mechanical Turk Marketplace • Panagiotis G. Ipeirotis • ACM XRDS (Crossroads), Vol. 17, No 2, Winter 2010

  9. Aug 2010
    Refereed

    Running Experiments on Amazon Mechanical Turk • Gabriele Paolacci, Jesse Chandler, and Panagiotis G. Ipeirotis • Judgment and Decision Making, Vol. 5, No. 5, August 2010

  10. Apr 2009
    Refereed

    A Quality-Aware Optimizer for Information Extraction • Alpa Jain and Panagiotis G. Ipeirotis • ACM Transactions on Database Systems (TODS), Vol. 34, No. 1, April 2009

  11. Mar 2009
    Refereed

    The EconoMining Project at NYU: Studying the Economic Value of User-Generated Content on the Internet • Anindya Ghose and Panagiotis G. Ipeirotis • Journal of Revenue and Pricing Management, Vol. 8, No 2-3, March 2009

  12. Dec 2008
    Invited

    Building Query Optimizers for Information Extraction: The SQoUT Project • Alpa Jain, Panagiotis G. Ipeirotis, and Luis Gravano • SIGMOD Record, Special Issue on "Managing Information Extraction," Vol. 37, No. 4, December 2008

  13. Mar 2008
    Invited

    Classification-Aware Hidden-Web Text Database Selection • Panagiotis G. Ipeirotis and Luis Gravano • ACM Transactions on Information Systems (TOIS), Vol. 26, No. 2, March 2008

  14. Nov 2007
    Refereed

    Towards a Query Optimizer for Text-Centric Tasks • Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay Jain, and Luis Gravano • ACM Transactions on Database Systems (TODS), Vol. 32, No. 4, November 2007

  15. Aug 2007
    Refereed

    Modeling and Managing Changes in Text Databases • Panagiotis G. Ipeirotis, Alexandros Ntoulas, Junghoo Cho, and Luis Gravano • ACM Transactions on Database Systems (TODS), Vol. 32, No. 3, August 2007

  16. Jan 2007
    Refereed

    Duplicate Record Detection: A Survey • Ahmed K. Elmagarmid, Panagiotis G. Ipeirotis, and Vassilios S. Verykios • IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 19, No. 1, January 2007

  17. Jan 2003
    Refereed

    QProber: A System for Automatic Classification of Hidden-Web Databases • Luis Gravano, Panagiotis G. Ipeirotis, and Mehran Sahami • ACM Transactions on Information Systems (TOIS), Vol. 21, No. 1, January 2003

  18. Mar 2002
    Invited

    Query- vs. Crawling-Based Classification of Searchable Web Databases • Luis Gravano, Panagiotis G. Ipeirotis, and Mehran Sahami • IEEE Data Engineering Bulletin, Vol. 25, No. 1, March 2002

  19. Dec 2001
    Invited

    Using q-grams in a DBMS for Approximate String Processing • Luis Gravano, Panagiotis G. Ipeirotis, Hosagrahar Visvesvaraya Jagadish, Nick Koudas, Shanmugauelayut Muthukrishnan, Lauri Pietarinen, and Divesh Srivastava • IEEE Data Engineering Bulletin, Vol. 24, No. 4, December 2001

Conferences

  1. Feb 2013
    Refereed

    Have you Done Anything Like That? Predicting Performance Using Inter-category Reputation • Marios Kokkodis and Panagiotis G. Ipeirotis • Sixth International Conference on Web Search and Data Mining (WSDM 2013) • 73/387=19% accepted

  2. Dec 2012
    Refereed

    Bonus, Disclosure, and Choice: What Motivates the Creation of High-Quality Paid Reviews? • Jing Wang, Anindya Ghose, and Panagiotis G., Ipeirotis • Thirty Third International Conference on Information Systems (ICIS 2012)

  3. Dec 2012
    Refereed

    Search Less, Find More? Examining Limited Consumer Search with Social Media and Product Search Engines • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Thirty Third International Conference on Information Systems (ICIS 2012) • Best Theme Paper Award

  4. Dec 2011
    Refereed

    Content and Context: Identifying the Impact of Qualitative Information on Consumer Choice • Sinan Aral, Panagiotis G. Ipeirotis, and Sean Taylor • Proceedings of the International Conference on Information Systems (ICIS), 2011

  5. Mar 2011
    Refereed

    Towards a Theory Model for Product Search • Beibei Li, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the 20th International World-Wide Web Conference (WWW), 2011 • 81/658=12% accepted; Best Paper Award

  6. Mar 2010
    Refereed

    Ranked Queries Over Sources with Boolean Query Interfaces without Ranking Support • Vagelis Hristidis, Yuheng Hu, and Panagiotis G. Ipeirotis • Proceedings of the 25th IEEE International Conference on Data Engineering (ICDE), 2010 • ~20% accepted

  7. Jan 2010
    Refereed

    Designing Ranking Systems for Hotels on Travel Search Engines to Enhance User Experience • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Proceedings of the International Conference on Information Systems (ICIS), 2010

  8. Jul 2009
    Refereed

    Modeling Volatility in Prediction Markets • Nikolay Archak and Panagiotis G. Ipeirotis • Proceedings for the 10th ACM Conference on Electronic Commerce (EC), 2009 • 40/158 = 25% accepted

  9. Mar 2009
    Refereed

    Join Optimization of Information Extraction Output: Quality Matters! • Alpa Jain, Panagiotis G. Ipeirotis, An-Hai Doan, and Luis Gravano • Proceedings of the 25th IEEE International Conference on Data Engineering (ICDE), 2009 • 93/554 = 16.7% accepted

  10. Feb 2009
    Refereed

    Query by Document • Yin Yang, Nilesh Bansal, Wisam Dakka, Panagiotis G. Ipeirotis, Nick Koudas, and Dimitris Papadias • Proceedings of the Second ACM International Conference on Web Search and Data Mining (WSDM), 2009 • 29/170 = 17% accepted

  11. Aug 2008
    Refereed

    Get Another Label? Improving Data Quality and Data Mining Using Multiple, Noisy Labelers • Victor S. Sheng, Foster Provost, and Panagiotis G. 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

  12. Apr 2008
    Refereed

    Automatic Extraction of Useful Facet Hierarchies from Text Databases • Wisam Dakka and Panagiotis G. Ipeirotis • Proceedings of the 24th IEEE International Conference on Data Engineering (ICDE), 2008 • 75/617 = 12.1% accepted

  13. Aug 2007
    Refereed

    Designing Novel Review Ranking Systems: Predicting Usefulness and Impact of Reviews • Anindya Ghose and Panagiotis G. Ipeirotis • Proceedings of the Ninth International Conference on Electronic Commerce (ICEC), 2007

  14. Aug 2007
    Refereed

    Show me the Money! Deriving the Pricing Power of Product Features by Mining Consumer Reviews • Nikolay Archak, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the Thirteenth ACM International Conference on Knowledge Discovery and Data Mining (KDD), 2007 • ~100/513 < 20% accepted

  15. Jun 2007
    Refereed

    Opinion Mining Using Econometrics: A Case Study on Reputation Systems • Anindya Ghose, Panagiotis G. Ipeirotis, and Arun Sundararajan • Proceedings of the 45th Annual Meeting of the Association for Computational Linguistics (ACL), 2007 • 132/588 = 22% accepted

  16. Jun 2006
    Refereed

    To Search or to Crawl? Towards a Query Optimizer for Text-Centric Tasks • Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay Jain, and Luis Gravano • Proceedings of the 2006 ACM International Conference on Management of Data (SIGMOD), 2006 • 58/446=13% accepted; Best Paper Award

  17. Oct 2005
    Refereed

    Automatic Construction of Multifaceted Browsing Interfaces • Wisam Dakka, Panagiotis G. Ipeirotis, and Kenneth R. Wood • Proceedings of the 2005 ACM International Conference on Information and Knowledge Management (CIKM), 2005 • 76/425 = 18% accepted

  18. Apr 2005
    Refereed

    Modeling and Managing Content Changes in Text Databases • Panagiotis G. Ipeirotis, Alexandros Ntoulas, Junghoo Cho, and Luis Gravano • Proceedings of the 21st IEEE International Conference on Data Engineering (ICDE), 2005 • 67/521 = 13% accepted; Best Paper Award

  19. Jun 2004
    Refereed

    When one Sample is not Enough: Improving Text Database Selection Using Shrinkage • Panagiotis G. Ipeirotis and Luis Gravano • Proceedings of the 2004 ACM International Conference on Management of Data (SIGMOD), 2004 • 69/431 = 16% accepted

  20. May 2003
    Refereed

    Text Joins in an RDBMS for Web Data Integration • Luis Gravano, Panagiotis G. Ipeirotis, Nick Koudas, and Divesh Srivastava • Proceedings of the 12th International World-Wide Web Conference (WWW), 2003 • 13% accepted, more than 600 submissions

  21. Mar 2003
    Refereed

    Text Joins for Data Cleansing and Integration in an RDBMS • Luis Gravano, Panagiotis G. Ipeirotis, Nick Koudas, and Divesh Srivastava • Proceedings of the 19th IEEE International Conference on Data Engineering (ICDE), 2003

  22. Aug 2002
    Refereed

    Distributed Search over the Hidden-Web: Hierarchical Database Sampling and Selection • Panagiotis G. Ipeirotis and Luis Gravano • Proceedings of the 28th International Conference on Very Large Databases (VLDB), 2002 • 69/432 = 16% accepted

  23. Jul 2002
    Refereed

    Extending SDARTS: Extracting Metadata from Web Databases and Interfacing with the Open Archives Initiative • Panagiotis G. Ipeirotis, Tom Barry, and Luis Gravano • Proceedings of the Second ACM+IEEE Joint Conference on Digital Libraries (JCDL), 2002 • 33% accepted

  24. Sep 2001
    Refereed

    Approximate String Joins in a Database (Almost) for Free • Luis Gravano, Panagiotis G. Ipeirotis, Hosagrahar Visvesvaraya Jagadish, Nick Koudas, Shanmugauelayut Muthukrishnan, and Divesh Srivastava • Proceedings of the 27th International Conference on Very Large Databases (VLDB), 2001 • 59/339 = 17% accepted

  25. Jun 2001
    Refereed

    SDLIP + STARTS = SDARTS. A Protocol and Toolkit for Metasearching • Noah Green, Panagiotis G. Ipeirotis, and Luis Gravano • Proceedings of the First ACM+IEEE Joint Conference on Digital Libraries (JCDL), 2001

  26. May 2001
    Refereed

    Probe, Count, and Classify: Categorizing Hidden-Web Databases • Panagiotis G. Ipeirotis, Luis Gravano, and Mehran Sahami • Proceedings of the 2001 ACM International Conference on Management of Data (SIGMOD), 2001 • 15% accepted

Workshops

  1. Dec 2011
    Refereed

    Examining the Impact of Search Engine Ranking and Personalization on Consumer Behavior: Combining Bayesian Modeling with Randomized Field Experiments • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Proceedings of the Workshop on Information Systems and Economics (WISE), 2011

  2. Aug 2011
    Refereed

    What’s the Right Price? Pricing Tasks for Finishing on Time • Siamak Faridani, Björn Hartmann, and Panagiotis G. Ipeirotis • Proceedings of the 3rd Human Computation Workshop (HCOMP), 2011 • 16/52=30% accepted

  3. Aug 2011
    Refereed

    Beat the Machine: Challenging Workers to Find the Unknown Unknowns • Josh Attenberg, Panagiotis G. Ipeirotis, and Foster Provost • Proceedings of the 3rd Human Computation Workshop (HCOMP), 2011 • 16/52=30% accepted

  4. May 2011
    Refereed

    The Need for Standardization in Crowdsourcing • Panagiotis G. Ipeirotis and John J. Horton • Proceedings of the Workshop on Crowdsourcing and Human Computation at CHI, 2011

  5. Mar 2011
    Refereed

    A Demo Search Engine for Products • Beibei Li, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the 20th International World-Wide Web Conference (WWW), 2011

  6. Feb 2011
    Refereed

    Estimating the Completion Time of Crowdsourced Tasks Using Survival Analysis Models • Jing Wang, Siamak Faridani, and Panagiotis G. Ipeirotis • Proceedings of the Workshop on Crowdsourcing for Search and Data Mining (WSDM11-CSDM), 2011

  7. Jul 2010
    Refereed

    Quality Management on Amazon Mechanical Turk • Panagiotis G. Ipeirotis, Foster Provost, and Jing Wang • Proceedings of the Second Human Computation Workshop (HCOMP), 2010

  8. Sep 2009
    Refereed

    Cramer’s Rule: How Information Content Moves Markets • Sinan Aral, Panagiotis G. Ipeirotis, and Sean J. Taylor • Proceedings of the 20th Workshop on Information Systems and Economics (WISE), 2009

  9. Sep 2009
    Refereed

    The Economic Impact of User-Generated Content on the Internet: Combining Text Mining with Demand Estimation in the Hotel Industry • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Proceedings of the 20th Workshop on Information Systems and Economics (WISE), 2009

  10. Oct 2008
    Refereed

    Answering General Time Sensitive Queries • Wisam Dakka, Luis Gravano, and Panagiotis G. Ipeirotis • Proceedings of the 2008 ACM CIKM International Conference on Information and Knowledge Management (CIKM), 2008

  11. Jun 2008
    Refereed

    Stay Elsewhere? Improving Local Search for Hotels Using Econometric Modeling and Image Classification • Beibei Li, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the Sixth International Workshop on the Web and Databases (WebDB), 2008 • 14/30 = 46% accepted

  12. Jan 2008
    Refereed

    The Impact of Information Disclosure on Stock Market Returns: The Sarbanes-Oxley Act and the Role of Media as an Information Intermediary • Karthik Balakrishnan, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the Seventh Workshop on the Economics of Information Security (WEIS), 2008

  13. Jan 2008
    Refereed

    Detecting Important Events Using Prediction Markets, Text Mining, and Volatility Modeling • George Tziralis and Panagiotis G. Ipeirotis • Proceedings of the Third Workshop on Prediction Markets, 2008

  14. Apr 2007
    Refereed

    Faceted Browsing over Large Databases of Text-Annotated Objects • Wisam Dakka, Panagiotis G. Ipeirotis, and Kenneth R. Wood • Proceedings of the 23rd IEEE International Conference on Data Engineering, Demonstrations (ICDE), 2007 • 28/73 = 38% accepted

  15. Aug 2006
    Refereed

    Automatic Discovery of Useful Facet Terms • Wisam Dakka, Rishabh Dayal, and Panagiotis G. Ipeirotis • Proceedings of the ACM SIGIR 2006 Workshop on Faceted Search, 2006

  16. Jan 2006
    Refereed

    Designing Ranking Systems for Consumer Reviews: The Impact of Review Subjectivity on Product Sales and Review Quality • Anindya Ghose and Panagiotis G. Ipeirotis • Proceedings of the 2006 Workshop on Information Technology and Systems (WITS), 2006 • 36/105 = 35% accepted

  17. Aug 2005
    Refereed

    Reputation Premiums in Electronic Peer-to-Peer Markets: Analyzing Textual Feedback and Network Structure • Anindya Ghose, Panagiotis G. Ipeirotis, and Arun Sundararajan • Proceedings of the ACM SIGCOMM 2005 Third Workshop on Economics of Peer-to-Peer Systems, (P2PEcon), 2005

  18. Jun 2003
    Refereed

    Modeling Query-Based Access to Text Databases • Eugene Agichtein, Panagiotis G. Ipeirotis, and Luis Gravano • Proceedings of the Sixth ACM SIGMOD International Workshop on the Web and Databases (WebDB), 2003 • 25% accepted

  19. Jun 2001
    Refereed

    PERSIVAL Demo: Categorizing Hidden-Web Resources • Panagiotis G. Ipeirotis, Luis Gravano, and Mehran Sahami • Proceedings of the First ACM+IEEE Joint Conference on Digital Libraries (JCDL), 2001

  20. May 2000
    Refereed

    Automatic Classification of Text Databases through Query Probing • Panagiotis G. Ipeirotis, Luis Gravano, and Mehran Sahami • Proceedings of the Third International Workshop on the Web and Databases, (WebDB), 2000 • 29% accepted

Misc publications

  1. Mar 2011
    Refereed Misc Presentation

    Managing Crowdsourced Human Computation: A Tutorial • Panagiotis G. Ipeirotis and Praveen K. Paritosh • Tutorial at the 20th International World-Wide Web Conference (WWW), 2011

  2. Mar 2011
    Invited Misc Presentation

    The Computer is the New Sewing Machine: Benefits and Perils of Crowdsourcing • Praveen Paritosh, Panagiotis G. Ipeirotis, Matt Cooper, and Siddharth Suri • Panel at the 20th International World-Wide Web Conference (WWW), 2011

  3. Dec 2010
    Misc Presentation

    System, Method, Software Arrangement and Computer-Accessible Medium for Incorporating Qualitative and Quantitative Information into an Economic Model • US Patent 7,848,979

  4. Mar 2010
    Refereed Misc Presentation

    Improving Product Search with Economic Theory • Beibei Li, Panagiotis G. Ipeirotis, and Anindya Ghose • Proceedings of the Workshops of 2010 IEEE 26th International Conference on Data Engineering (ICDE), 2010

  5. Jan 2009
    Invited Misc Presentation

    Taxonomy Design for Faceted Search • Wisam Dakka , Panagiotis G. Ipeirotis, and Giovanni Maria Sacco • The Information Retrieval Series, Vol. 25, 175-213, Springer, 2009

  6. Jan 2009
    Invited Misc Presentation

    Searching Digital Libraries • Panagiotis G. Ipeirotis • Encyclopedia of Database Systems, Part 19, Springer, 2009

  7. Jan 2004
    Unrefereed Misc Presentation

    Classifying and Searching Hidden-Web Text Databases • Panagiotis G. Ipeirotis • Ph.D. Dissertation, Columbia University (advisor: L. Gravano), September 2004

2013

  1. Refereed
    Journal

    Repeated Labeling Using Multiple Noisy Labelers • Panagiotis G. Ipeirotis, Foster Provost, Victor S. Sheng, and Jing Wang • Data Mining and Knowledge Discovery

  2. Refereed
    Conference

    Have you Done Anything Like That? Predicting Performance Using Inter-category Reputation • Marios Kokkodis and Panagiotis G. Ipeirotis • Sixth International Conference on Web Search and Data Mining (WSDM 2013) • 73/387=19% accepted

  3. Refereed
    Journal

    Facilitating Document Annotation using Content and Querying Value • Eduardo J. Ruiz, Vagelis Hristidis, and Panagiotis G. Ipeirotis • IEEE Transactions on Knowledge and Data Engineering (TKDE)

2012

  1. Refereed
    Conference

    Bonus, Disclosure, and Choice: What Motivates the Creation of High-Quality Paid Reviews? • Jing Wang, Anindya Ghose, and Panagiotis G., Ipeirotis • Thirty Third International Conference on Information Systems (ICIS 2012)

  2. Refereed
    Conference

    Search Less, Find More? Examining Limited Consumer Search with Social Media and Product Search Engines • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Thirty Third International Conference on Information Systems (ICIS 2012) • Best Theme Paper Award

  3. Refereed
    Journal

    Designing Ranking Systems for Hotels on Travel Search Engines by Mining User-Generated and Crowd-Sourced Content • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Marketing Science, Vol. 31, No. 3, May/June 2012

  4. Refereed
    Journal

    Answering General Time-Sensitive Queries • Wisam Dakka, Luis Gravano, and Panagiotis G. Ipeirotis • IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 24, No. 2, February 2012

2011

  1. Refereed
    Conference

    Content and Context: Identifying the Impact of Qualitative Information on Consumer Choice • Sinan Aral, Panagiotis G. Ipeirotis, and Sean Taylor • Proceedings of the International Conference on Information Systems (ICIS), 2011

  2. Refereed
    Workshop

    Examining the Impact of Search Engine Ranking and Personalization on Consumer Behavior: Combining Bayesian Modeling with Randomized Field Experiments • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Proceedings of the Workshop on Information Systems and Economics (WISE), 2011

  3. Refereed
    Journal

    Estimating the Helpfulness and Economic Impact of Product Reviews: Mining Text and Reviewer Characteristics • Anindya Ghose and Panagiotis G. Ipeirotis • IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 23, No. 10, October 2011

  4. Refereed
    Journal

    Relevance-Based Retrieval on Hidden-Web Text Databases without Ranking Support • Vagelis Hristidis, Yuheng Hu, and Panagiotis G. Ipeirotis • IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 23, No. 10, October 2011

  5. Refereed
    Workshop

    What’s the Right Price? Pricing Tasks for Finishing on Time • Siamak Faridani, Björn Hartmann, and Panagiotis G. Ipeirotis • Proceedings of the 3rd Human Computation Workshop (HCOMP), 2011 • 16/52=30% accepted

  6. Refereed
    Workshop

    Beat the Machine: Challenging Workers to Find the Unknown Unknowns • Josh Attenberg, Panagiotis G. Ipeirotis, and Foster Provost • Proceedings of the 3rd Human Computation Workshop (HCOMP), 2011 • 16/52=30% accepted

  7. Refereed
    Journal

    Deriving the Pricing Power of Product Features by Mining Consumer Reviews • Nikolay Archak, Anindya Ghose, and Panagiotis G. Ipeirotis • Management Science, Vol. 57, No 8, August 2011

  8. Refereed
    Workshop

    The Need for Standardization in Crowdsourcing • Panagiotis G. Ipeirotis and John J. Horton • Proceedings of the Workshop on Crowdsourcing and Human Computation at CHI, 2011

  9. Refereed
    Conference

    Towards a Theory Model for Product Search • Beibei Li, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the 20th International World-Wide Web Conference (WWW), 2011 • 81/658=12% accepted; Best Paper Award

  10. Refereed
    Workshop

    A Demo Search Engine for Products • Beibei Li, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the 20th International World-Wide Web Conference (WWW), 2011

  11. Invited
    Misc Presentation

    The Computer is the New Sewing Machine: Benefits and Perils of Crowdsourcing • Praveen Paritosh, Panagiotis G. Ipeirotis, Matt Cooper, and Siddharth Suri • Panel at the 20th International World-Wide Web Conference (WWW), 2011

  12. Refereed
    Misc Presentation

    Managing Crowdsourced Human Computation: A Tutorial • Panagiotis G. Ipeirotis and Praveen K. Paritosh • Tutorial at the 20th International World-Wide Web Conference (WWW), 2011

  13. Refereed
    Workshop

    Estimating the Completion Time of Crowdsourced Tasks Using Survival Analysis Models • Jing Wang, Siamak Faridani, and Panagiotis G. Ipeirotis • Proceedings of the Workshop on Crowdsourcing for Search and Data Mining (WSDM11-CSDM), 2011

  14. Unrefereed
    Working paper

    Managing Crowdsourcing Workers • Jing Wang, Panagiotis G. Ipeirotis, and Foster Provost • Winter Conference on Business Intelligence, 2011

2010


  1. Misc Presentation

    System, Method, Software Arrangement and Computer-Accessible Medium for Incorporating Qualitative and Quantitative Information into an Economic Model • US Patent 7,848,979

  2. Unrefereed
    Working paper

    Modeling Dependency in Prediction Markets • Nikolay Archak and Panagiotis G. Ipeirotis • NYU Center for Digital Economy Research Working Paper No. CEDER-10-05

  3. Refereed
    Journal

    Analyzing the Amazon Mechanical Turk Marketplace • Panagiotis G. Ipeirotis • ACM XRDS (Crossroads), Vol. 17, No 2, Winter 2010

  4. Refereed
    Journal

    Running Experiments on Amazon Mechanical Turk • Gabriele Paolacci, Jesse Chandler, and Panagiotis G. Ipeirotis • Judgment and Decision Making, Vol. 5, No. 5, August 2010

  5. Refereed
    Workshop

    Quality Management on Amazon Mechanical Turk • Panagiotis G. Ipeirotis, Foster Provost, and Jing Wang • Proceedings of the Second Human Computation Workshop (HCOMP), 2010

  6. Unrefereed
    Working paper

    Demographics of Mechanical Turk • Panagiotis G. Ipeirotis • NYU Center for Digital Economy Research Working Paper CeDER-10-01

  7. Refereed
    Conference

    Ranked Queries Over Sources with Boolean Query Interfaces without Ranking Support • Vagelis Hristidis, Yuheng Hu, and Panagiotis G. Ipeirotis • Proceedings of the 25th IEEE International Conference on Data Engineering (ICDE), 2010 • ~20% accepted

  8. Refereed
    Misc Presentation

    Improving Product Search with Economic Theory • Beibei Li, Panagiotis G. Ipeirotis, and Anindya Ghose • Proceedings of the Workshops of 2010 IEEE 26th International Conference on Data Engineering (ICDE), 2010

  9. Refereed
    Conference

    Designing Ranking Systems for Hotels on Travel Search Engines to Enhance User Experience • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Proceedings of the International Conference on Information Systems (ICIS), 2010

2009

  1. Refereed
    Workshop

    Cramer’s Rule: How Information Content Moves Markets • Sinan Aral, Panagiotis G. Ipeirotis, and Sean J. Taylor • Proceedings of the 20th Workshop on Information Systems and Economics (WISE), 2009

  2. Refereed
    Workshop

    The Economic Impact of User-Generated Content on the Internet: Combining Text Mining with Demand Estimation in the Hotel Industry • Anindya Ghose, Panagiotis G. Ipeirotis, and Beibei Li • Proceedings of the 20th Workshop on Information Systems and Economics (WISE), 2009

  3. Refereed
    Conference

    Modeling Volatility in Prediction Markets • Nikolay Archak and Panagiotis G. Ipeirotis • Proceedings for the 10th ACM Conference on Electronic Commerce (EC), 2009 • 40/158 = 25% accepted

  4. Refereed
    Journal

    A Quality-Aware Optimizer for Information Extraction • Alpa Jain and Panagiotis G. Ipeirotis • ACM Transactions on Database Systems (TODS), Vol. 34, No. 1, April 2009

  5. Refereed
    Conference

    Join Optimization of Information Extraction Output: Quality Matters! • Alpa Jain, Panagiotis G. Ipeirotis, An-Hai Doan, and Luis Gravano • Proceedings of the 25th IEEE International Conference on Data Engineering (ICDE), 2009 • 93/554 = 16.7% accepted

  6. Unrefereed
    Working paper

    The Dimensions of Reputation in Electronic Markets • Anindya Ghose, Panagiotis G. Ipeirotis, and Arun Sundararajan • NYU Center for Digital Economy Research Working Paper No. CeDER-06-02

  7. Refereed
    Journal

    The EconoMining Project at NYU: Studying the Economic Value of User-Generated Content on the Internet • Anindya Ghose and Panagiotis G. Ipeirotis • Journal of Revenue and Pricing Management, Vol. 8, No 2-3, March 2009

  8. Refereed
    Conference

    Query by Document • Yin Yang, Nilesh Bansal, Wisam Dakka, Panagiotis G. Ipeirotis, Nick Koudas, and Dimitris Papadias • Proceedings of the Second ACM International Conference on Web Search and Data Mining (WSDM), 2009 • 29/170 = 17% accepted

  9. Invited
    Misc Presentation

    Taxonomy Design for Faceted Search • Wisam Dakka , Panagiotis G. Ipeirotis, and Giovanni Maria Sacco • The Information Retrieval Series, Vol. 25, 175-213, Springer, 2009

  10. Invited
    Misc Presentation

    Searching Digital Libraries • Panagiotis G. Ipeirotis • Encyclopedia of Database Systems, Part 19, Springer, 2009

2008

  1. Invited
    Journal

    Building Query Optimizers for Information Extraction: The SQoUT Project • Alpa Jain, Panagiotis G. Ipeirotis, and Luis Gravano • SIGMOD Record, Special Issue on "Managing Information Extraction," Vol. 37, No. 4, December 2008

  2. Refereed
    Workshop

    Answering General Time Sensitive Queries • Wisam Dakka, Luis Gravano, and Panagiotis G. Ipeirotis • Proceedings of the 2008 ACM CIKM International Conference on Information and Knowledge Management (CIKM), 2008

  3. Refereed
    Conference

    Get Another Label? Improving Data Quality and Data Mining Using Multiple, Noisy Labelers • Victor S. Sheng, Foster Provost, and Panagiotis G. 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

  4. Refereed
    Workshop

    Stay Elsewhere? Improving Local Search for Hotels Using Econometric Modeling and Image Classification • Beibei Li, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the Sixth International Workshop on the Web and Databases (WebDB), 2008 • 14/30 = 46% accepted

  5. Refereed
    Conference

    Automatic Extraction of Useful Facet Hierarchies from Text Databases • Wisam Dakka and Panagiotis G. Ipeirotis • Proceedings of the 24th IEEE International Conference on Data Engineering (ICDE), 2008 • 75/617 = 12.1% accepted

  6. Invited
    Journal

    Classification-Aware Hidden-Web Text Database Selection • Panagiotis G. Ipeirotis and Luis Gravano • ACM Transactions on Information Systems (TOIS), Vol. 26, No. 2, March 2008

  7. Refereed
    Workshop

    The Impact of Information Disclosure on Stock Market Returns: The Sarbanes-Oxley Act and the Role of Media as an Information Intermediary • Karthik Balakrishnan, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the Seventh Workshop on the Economics of Information Security (WEIS), 2008

  8. Refereed
    Workshop

    Detecting Important Events Using Prediction Markets, Text Mining, and Volatility Modeling • George Tziralis and Panagiotis G. Ipeirotis • Proceedings of the Third Workshop on Prediction Markets, 2008

2007

  1. Refereed
    Journal

    Towards a Query Optimizer for Text-Centric Tasks • Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay Jain, and Luis Gravano • ACM Transactions on Database Systems (TODS), Vol. 32, No. 4, November 2007

  2. Refereed
    Conference

    Designing Novel Review Ranking Systems: Predicting Usefulness and Impact of Reviews • Anindya Ghose and Panagiotis G. Ipeirotis • Proceedings of the Ninth International Conference on Electronic Commerce (ICEC), 2007

  3. Refereed
    Conference

    Show me the Money! Deriving the Pricing Power of Product Features by Mining Consumer Reviews • Nikolay Archak, Anindya Ghose, and Panagiotis G. Ipeirotis • Proceedings of the Thirteenth ACM International Conference on Knowledge Discovery and Data Mining (KDD), 2007 • ~100/513 < 20% accepted

  4. Refereed
    Journal

    Modeling and Managing Changes in Text Databases • Panagiotis G. Ipeirotis, Alexandros Ntoulas, Junghoo Cho, and Luis Gravano • ACM Transactions on Database Systems (TODS), Vol. 32, No. 3, August 2007

  5. Refereed
    Conference

    Opinion Mining Using Econometrics: A Case Study on Reputation Systems • Anindya Ghose, Panagiotis G. Ipeirotis, and Arun Sundararajan • Proceedings of the 45th Annual Meeting of the Association for Computational Linguistics (ACL), 2007 • 132/588 = 22% accepted

  6. Refereed
    Workshop

    Faceted Browsing over Large Databases of Text-Annotated Objects • Wisam Dakka, Panagiotis G. Ipeirotis, and Kenneth R. Wood • Proceedings of the 23rd IEEE International Conference on Data Engineering, Demonstrations (ICDE), 2007 • 28/73 = 38% accepted

  7. Refereed
    Journal

    Duplicate Record Detection: A Survey • Ahmed K. Elmagarmid, Panagiotis G. Ipeirotis, and Vassilios S. Verykios • IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol. 19, No. 1, January 2007

2006

  1. Refereed
    Workshop

    Automatic Discovery of Useful Facet Terms • Wisam Dakka, Rishabh Dayal, and Panagiotis G. Ipeirotis • Proceedings of the ACM SIGIR 2006 Workshop on Faceted Search, 2006

  2. Refereed
    Conference

    To Search or to Crawl? Towards a Query Optimizer for Text-Centric Tasks • Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay Jain, and Luis Gravano • Proceedings of the 2006 ACM International Conference on Management of Data (SIGMOD), 2006 • 58/446=13% accepted; Best Paper Award

  3. Refereed
    Workshop

    Designing Ranking Systems for Consumer Reviews: The Impact of Review Subjectivity on Product Sales and Review Quality • Anindya Ghose and Panagiotis G. Ipeirotis • Proceedings of the 2006 Workshop on Information Technology and Systems (WITS), 2006 • 36/105 = 35% accepted

2005

  1. Refereed
    Conference

    Automatic Construction of Multifaceted Browsing Interfaces • Wisam Dakka, Panagiotis G. Ipeirotis, and Kenneth R. Wood • Proceedings of the 2005 ACM International Conference on Information and Knowledge Management (CIKM), 2005 • 76/425 = 18% accepted

  2. Refereed
    Workshop

    Reputation Premiums in Electronic Peer-to-Peer Markets: Analyzing Textual Feedback and Network Structure • Anindya Ghose, Panagiotis G. Ipeirotis, and Arun Sundararajan • Proceedings of the ACM SIGCOMM 2005 Third Workshop on Economics of Peer-to-Peer Systems, (P2PEcon), 2005

  3. Refereed
    Conference

    Modeling and Managing Content Changes in Text Databases • Panagiotis G. Ipeirotis, Alexandros Ntoulas, Junghoo Cho, and Luis Gravano • Proceedings of the 21st IEEE International Conference on Data Engineering (ICDE), 2005 • 67/521 = 13% accepted; Best Paper Award

2004

  1. Refereed
    Conference

    When one Sample is not Enough: Improving Text Database Selection Using Shrinkage • Panagiotis G. Ipeirotis and Luis Gravano • Proceedings of the 2004 ACM International Conference on Management of Data (SIGMOD), 2004 • 69/431 = 16% accepted

  2. Unrefereed
    Misc Presentation

    Classifying and Searching Hidden-Web Text Databases • Panagiotis G. Ipeirotis • Ph.D. Dissertation, Columbia University (advisor: L. Gravano), September 2004

2003

  1. Refereed
    Workshop

    Modeling Query-Based Access to Text Databases • Eugene Agichtein, Panagiotis G. Ipeirotis, and Luis Gravano • Proceedings of the Sixth ACM SIGMOD International Workshop on the Web and Databases (WebDB), 2003 • 25% accepted

  2. Refereed
    Conference

    Text Joins in an RDBMS for Web Data Integration • Luis Gravano, Panagiotis G. Ipeirotis, Nick Koudas, and Divesh Srivastava • Proceedings of the 12th International World-Wide Web Conference (WWW), 2003 • 13% accepted, more than 600 submissions

  3. Refereed
    Conference

    Text Joins for Data Cleansing and Integration in an RDBMS • Luis Gravano, Panagiotis G. Ipeirotis, Nick Koudas, and Divesh Srivastava • Proceedings of the 19th IEEE International Conference on Data Engineering (ICDE), 2003

  4. Refereed
    Journal

    QProber: A System for Automatic Classification of Hidden-Web Databases • Luis Gravano, Panagiotis G. Ipeirotis, and Mehran Sahami • ACM Transactions on Information Systems (TOIS), Vol. 21, No. 1, January 2003

2002

  1. Refereed
    Conference

    Distributed Search over the Hidden-Web: Hierarchical Database Sampling and Selection • Panagiotis G. Ipeirotis and Luis Gravano • Proceedings of the 28th International Conference on Very Large Databases (VLDB), 2002 • 69/432 = 16% accepted

  2. Refereed
    Conference

    Extending SDARTS: Extracting Metadata from Web Databases and Interfacing with the Open Archives Initiative • Panagiotis G. Ipeirotis, Tom Barry, and Luis Gravano • Proceedings of the Second ACM+IEEE Joint Conference on Digital Libraries (JCDL), 2002 • 33% accepted

  3. Invited
    Journal

    Query- vs. Crawling-Based Classification of Searchable Web Databases • Luis Gravano, Panagiotis G. Ipeirotis, and Mehran Sahami • IEEE Data Engineering Bulletin, Vol. 25, No. 1, March 2002

2001

  1. Invited
    Journal

    Using q-grams in a DBMS for Approximate String Processing • Luis Gravano, Panagiotis G. Ipeirotis, Hosagrahar Visvesvaraya Jagadish, Nick Koudas, Shanmugauelayut Muthukrishnan, Lauri Pietarinen, and Divesh Srivastava • IEEE Data Engineering Bulletin, Vol. 24, No. 4, December 2001

  2. Refereed
    Conference

    Approximate String Joins in a Database (Almost) for Free • Luis Gravano, Panagiotis G. Ipeirotis, Hosagrahar Visvesvaraya Jagadish, Nick Koudas, Shanmugauelayut Muthukrishnan, and Divesh Srivastava • Proceedings of the 27th International Conference on Very Large Databases (VLDB), 2001 • 59/339 = 17% accepted

  3. Refereed
    Conference

    SDLIP + STARTS = SDARTS. A Protocol and Toolkit for Metasearching • Noah Green, Panagiotis G. Ipeirotis, and Luis Gravano • Proceedings of the First ACM+IEEE Joint Conference on Digital Libraries (JCDL), 2001

  4. Refereed
    Workshop

    PERSIVAL Demo: Categorizing Hidden-Web Resources • Panagiotis G. Ipeirotis, Luis Gravano, and Mehran Sahami • Proceedings of the First ACM+IEEE Joint Conference on Digital Libraries (JCDL), 2001

  5. Refereed
    Conference

    Probe, Count, and Classify: Categorizing Hidden-Web Databases • Panagiotis G. Ipeirotis, Luis Gravano, and Mehran Sahami • Proceedings of the 2001 ACM International Conference on Management of Data (SIGMOD), 2001 • 15% accepted

2000

  1. Refereed
    Workshop

    Automatic Classification of Text Databases through Query Probing • Panagiotis G. Ipeirotis, Luis Gravano, and Mehran Sahami • Proceedings of the Third International Workshop on the Web and Databases, (WebDB), 2000 • 29% accepted