Panagiotis Papadimitriou

Panagiotis Papadimitriou, PhD
Data Scientist / Architect at oDesk
Alumni of Stanford Infolab

Contact

papadimitriou@stanford.edu

Research Interests

Advertising
Data mining
Data privacy
Labor marketplaces
Web search

Education

PhD, Electrical Engineering, Stanford University, 2006 – 2011
- Dissertation title: "Algorithms and Strategies for Web Advertising"
- Advisor: Hector Garcia-Molina
MS, Electrical Engineering, Stanford University, 2006 – 2008
- Depth area: Dynamic Systems and Optimization
DiplEng, Electrical and Computer Engineering, NTUA, 2001 – 2006
- Major: Computer Science

Research Work

Advertising
- Sponsored Search Auctions with Conflict Constraints, to appear in WSDM2012 (TR, code)
  (joint work with Hector Garcia-Molina), Aug 2011
- Display Advertising Impact: Search Lift and Social Influence, KDD2011 (TR)
  (joint work with Prabhakar Krishnamurthy, Randall Lewis, David Reiley and Hector Garcia-Molina), Feb 2011
- Output URL Bidding, VLDB2011 (TR, slides)
  (joint work with Hector Garcia-Molina, Ali Dasdan and Santanu Kolay), May 2010
- Output Bidding: A New Search Advertising Model Complementary to Keyword Bidding, AdAuctions2009
  (joint work with Ali Dasdan, Santanu Kolay and Hector Garcia-Molina), Jul 2009
Privacy
- Data Leakage Detection, TKDE2011 (TR, poster)
  (joint work with Hector Garcia-Molina), Dec 2009
- Distributed Privacy Preserving Data Collection using Cryptographic Techniques, TR
  (joint work with Mingqiang Xue, Cheddy Raissi, Panos Kalnis and Hung Keng Pung), Jun 2009
- A Model for Data Leakage Detection, ICDE2009
  (joint work with Hector Garcia-Molina), Jun 2008
Other
- TACI: Taxonomy-Aware Catalog Integration, to appear in TKDE2012
  (joint work with Panayiotis Tsaparas, Ariel Fuxman and Lise Getoor), Feb 2012
- Web Graph Similarity for Anomaly Detection, JISA2010 (TR)
  (joint work with Ali Dasdan and Hector Garcia-Molina), Jan 2010
- Web Graph Similarity for Anomaly Detection, WWW2008 (poster)
  (joint work with Ali Dasdan and Hector Garcia-Molina), Jan 2008
- Design and Implementation of a Large Scale Profile and Location Based Services System (Demo)
  (joint work with Ioannis Koltsidas), Diploma Thesis at NTUA, Jun 2006

Patents

Panagiotis Papadimitriou, Prabhakar Krishnamurthy, Frederick Kenneth Smith. Method and System for Generating Web Pages for Topics Unassociated with a Dominant URL. Filed in Dec 2010.
Panayiotis Tsaparas, Panagiotis Papadimitriou, Ariel Fuxman, Lise Getoor, Rakesh Agrawal. Object Classification Using Taxonomies. US Patent Application No. 20100185577. Filed in Mar 2009.
Ali Dasdan, Panagiotis Papadimitriou. Methods and Apparatus for Computing Graph Similarity via Signature Similarity. US Patent No. 8,019,708. Issued in Sep 2011.
Ali Dasdan, Panagiotis Papadimitriou. Methods and Apparatus for Computing Graph Similarity via Sequence Similarity. US Patent No. 7,996,349. Issued in Aug 2011.