Panagiotis Karras

Department of Management Science and Information Systems
Rutgers, The State University of New Jersey
1 Washington Park, 1066
Newark, New Jersey 07102
lastname at business rutgers edu


Panagiotis Karras is an Assistant Professor and Teaching Excellence Fellow at Rutgers Business School.

He received an M.Eng. in Electrical and Computer Engineering from the National Technical University of Athens, a Ph.D. in Computer Science from the University of Hong Kong, and the 2008 Young Scientist Award in Physical/Mathematical Science from the Hong Kong Institution of Science.

In the past he has also worked and studied at the National University of Singapore, at the University of Zurich, at the Technical University of Denmark, at the Institute of Language and Speech Processing in Athens, at Schlumberger Information Solutions in Oslo, at the University of Karlsruhe, Germany, and at the University of Patras, Greece.



Publications in Refereed Journals

  1. On the Privacy and Utility of Anonymized Social Networks
    Yi Song, Xuesong Lu, Sadegh Nobari, Stéphane Bressan, and Panagiotis Karras
    International Journal of Adaptive, Resilient and Autonomic Systems (IJARAS), 4(2), 2013

  2. An effective and efficient parallel approach for random graphs generation over GPUs
    Stéphane Bressan, Alfredo Cuzzocrea, Panagiotis Karras, Xuesong Lu, and Sadegh Nobari
    Journal of Parallel and Distributed Computing (JPDC), 73(3), March 2013

  3. Publishing Microdata with a Robust Privacy Guarantee
    Jianneng Cao and Panagiotis Karras
    Proc. of the VLDB Endowment (PVLDB), 5(11), July 2012 (38th VLDB Conf., Istanbul, August 2012)

  4. Stochastic Database Cracking: Towards Robust Adaptive Indexing in Main-Memory Column-Stores
    Felix Halim, Stratos Idreos, Panagiotis Karras, and Roland H. C. Yap
    Proc. of the VLDB Endowment (PVLDB), 5(6), February 2012 (38th VLDB Conf., Istanbul, August 2012)

  5. Authenticated Multi-Step Nearest Neighbor Search
    Stavros Papadopoulos, Lixing Wang, Yin Yang, Dimitris Papadias, and Panagiotis Karras
    IEEE Transactions on Knowledge and Data Engineering (TKDE), 23(5), May 2011

  6. SABRE: A Sensitive Attribute Bucketization and REdistribution framework for t-closeness
    Jianneng Cao, Panagiotis Karras, Panos Kalnis, and Kian-Lee Tan
    The VLDB Journal (VLDBJ), 20(1), February 2011

  7. ρ-uncertainty: Inference-Proof Transaction Anonymization
    Jianneng Cao, Panagiotis Karras, Chedy Raïssi, and Kian-Lee Tan
    Proc. of the VLDB Endowment (PVLDB), 3(1) (36th VLDB Conf., Singapore, September 2010)

  8. Optimality and Scalability in Lattice Histogram Construction
    Panagiotis Karras
    Proc. of the VLDB Endowment (PVLDB), 2(1) (35th VLDB Conf., Lyon, France, August 2009)

  9. A Framework for Efficient Data Anonymization under Privacy and Accuracy Constraints
    Gabriel Ghinita, Panagiotis Karras, Panos Kalnis, and Nikos Mamoulis
    ACM Transactions on Data Base Systems (TODS), 34(2), June 2009

  10. Hexastore: Sextuple Indexing for Semantic Web Data Management
    Cathrin Weiss, Panagiotis Karras, and Abraham Bernstein
    Proc. of the VLDB Endowment (PVLDB), 1(1) (34th VLDB Conf., Auckland, New Zealand, August 2008)

  11. Hierarchical Synopses with Optimal Error Guarantees [appendix]
    Panagiotis Karras and Nikos Mamoulis
    ACM Transactions on Data Base Systems (TODS), 33(3), August 2008

Publications in Refereed Conferences

  1. H2RDF+: High-performance Distributed Joins over Large-scale RDF Graphs
    Nikolas Papailiou, Ioannis Konstantinou, Dimitrios Tsoumakos, Panagiotis Karras, and Nectarios Koziris
    Proc. of the 2013 IEEE Intl Conf. on Big Data (IEEE BigData), Santa Clara, California, October 2013

  2. eSkyline: Processing Skyline Queries over Encrypted Data
    Suvarna Bothe, Panagiotis Karras, and Akrivi Vlachou
    Proc. of the 39th Intl Conf. on Very Large Data Bases (VLDB), Riva del Garda, Italy, August 2013

  3. TOUCH: In-Memory Spatial Join by Hierarchical Data-Oriented Partitioning
    Sadegh Nobari, Farhan Tauheed, Thomas Heinis, Panagiotis Karras, Stéphane Bressan, and Anastasia Ailamaki
    Proc. of the 2013 ACM SIGMOD Intl Conf. on Management of Data (SIGMOD), New York, NY, June 2013

  4. Delineating Social Network Data Anonymization via Random Edge Perturbation
    Mingqiang Xue, Chedy Raïssi, Panagiotis Karras, Panos Kalnis, and Hung Keng Pung
    Proc. of the 21st ACM Conf. on Information and Knowledge Management (CIKM), Maui, Hawaii, October 2012

  5. Discretionary Social Network Data Revelation with a User-Centric Utility Guarante
    Song Yi, Panagiotis Karras, Sadegh Nobari, Giorgos Cheliotis, Mingqiang Xue, and Stéphane Bressan
    Proc. of the 21st ACM Conf. on Information and Knowledge Management (CIKM), Maui, Hawaii, October 2012

  6. Anonymizing Set-Valued Data by Nonreciprocal Recoding
    Mingqiang Xue, Panagiotis Karras, Chedy Raïssi, Jaideep Vaidya, and Kian-Lee Tan
    Proc. of the 18th ACM SIGKDD Intl Conf. on Knowledge Discovery and Data Mining (KDD), Beijing, China, August 2012

  7. Cooperative Scalable Moving Continuous Query Processing
    Xiaohui Li, Panagiotis Karras, Lei Shi, Kian-Lee Tan, and Christian S. Jensen
    Proc. of the 13th IEEE Intl Conf. on Mobile Data Management (MDM), Bengaluru, India, July 2012

  8. Sensitive Label Privacy Protection on Social Network Data
    Yi Song, Panagiotis Karras, Qian Xiao, and Stéphane Bressan
    Proc. of the 24th Intl Conf. on Scientific and Statistical Database Management (SSDBM), Chania, Crete, Greece, June 2012

  9. Scalable Parallel Minimum Spanning Forest Computation
    Sadegh Nobari, Thanh-Tung Cao, Panagiotis Karras, and Stéphane Bressan
    Proc. of the 17th ACM SIGPLAN Symp. on Principles and Practice of Parallel Programming (PPoPP), New Orleans, Louisiana, February 2012

  10. Utility-Driven Anonymization in Data Publishing
    Mingqiang Xue, Panagiotis Karras, Chedy Raïssi, and Hung Keng Pung
    Proc. of the 20th ACM Conf. on Information and Knowledge Management (CIKM), Glasgow, United Kingdom, October 2011

  11. Scalable kNN Search on Vertically Stored Time Series
    Shrikant Kashyap and Panagiotis Karras
    Proc. of the 17th ACM SIGKDD Intl Conf. on Knowledge Discovery and Data Mining (KDD), San Diego, California, August 2011

  12. Fast Random Graph Generation
    Sadegh Heyrani Nobari, Xuesong Lu, Panagiotis Karras, and Stéphane Bressan
    Proc. of the 14th Intl Conf. on Extending Database Technology (EDBT), Uppsala, Sweden, March 2011

  13. CW2I: Community Data Indexing for Complex Query Processing
    Mei Hui, Panagiotis Karras, and Beng Chin Ooi
    Proc. of the 11th Intl Conf. on Web-Age Information Management (WAIM), Jiuzhaigou, China, July 2010

  14. Local Search in Histogram Construction
    Felix Halim, Panagiotis Karras, and Roland H. C. Yap
    Proc. of the 24th AAAI Conf. on Artificial Intelligence (AAAI), Atlanta, Georgia, July 2010

  15. Fast and Effective Histogram Construction
    Felix Halim, Panagiotis Karras, and Roland H. C. Yap
    Proc. of the 18th ACM Conf. on Information and Knowledge Management (CIKM), Hong Kong, China, November 2009

  16. Multiplicative Synopses for Relative-Error Metrics
    Panagiotis Karras
    Proc. of the 12th Intl Conf. on Extending Database Technology (EDBT), Saint-Petersburg, Russia, March 2009

  17. Lattice Histograms: a Resilient Synopsis Structure
    Panagiotis Karras and Nikos Mamoulis
    Proc. of the 24th IEEE Intl Conf. on Data Engineering (ICDE), Cancún, Mexico, April 2008

  18. Common Influence Join: A Natural Join Operation for Spatial Pointsets
    Man Lung Yiu, Nikos Mamoulis, and Panagiotis Karras
    Proc. of the 24th IEEE Intl Conf. on Data Engineering (ICDE), Cancún, Mexico, April 2008

  19. Ring-constrained Join: Deriving Fair Middleman Locations from Pointsets via a Geometric Constraint
    Man Lung Yiu, Panagiotis Karras, and Nikos Mamoulis
    Proc. of the 11th Intl Conf. on Extending Database Technology (EDBT), Nantes, France, March 2008

  20. Fast Anonymization with Low Information Loss
    Gabriel Ghinita, Panagiotis Karras, Panos Kalnis, and Nikos Mamoulis
    Proc. of the 33rd Intl Conf. on Very Large Data Bases (VLDB), Vienna, September 2007

  21. Exploiting Duality in Summarization with Deterministic Guarantees
    Panagiotis Karras, Dimitris Sacharidis, and Nikos Mamoulis
    Proc. of the 13th ACM SIGKDD Intl Conf. on Knowledge Discovery and Data Mining (KDD), San Jose, California, August 2007

  22. The Haar+ Tree: a Refined Synopsis Data Structure
    Panagiotis Karras and Nikos Mamoulis
    Proc. of the 23rd IEEE Intl Conf. on Data Engineering (ICDE), Istanbul, April 2007

  23. Detecting the Direction of Motion in a Binary Sensor Network
    Panagiotis Karras and Nikos Mamoulis
    Proc. of the 1st IEEE Intl Conf. on Sensor Networks, Ubiquitous, and Trustworthy Computing (SUTC), Taichung, June 2006

  24. One-Pass Wavelet Synopses for Maximum-Error Metrics
    Panagiotis Karras and Nikos Mamoulis
    Proc. of the 31st Intl Conf. on Very Large Data Bases (VLDB), Trondheim, Norway, August 2005

Teaching

    29:623:375: Computer Network Applications (Spring 2013)
    26:198:641: Advanced Database Systems (Fall 2012)
    26:198:643: Information Security (Spring 2012)
    29:623:220: Management Information Systems (Spring 2012)
    22:198:603: Business Data Management (Fall 2011, Fall 2012, Fall 2013 Nwk, Fall 2013 NB)
    29:623:350: Structured Programming Applications (Fall 2011, Spring 2013)
    CS5322: Database Security (Spring 2010)
    CS3230: Design and Analysis of Algorithms (Fall 2009)
    CS6234: Advanced Algorithms (Spring 2009)
    CS2102: Database Systems (Spring 2009, Fall 2009)

Service

    Journal Referee for:
    Journal of the ACM, Algorithmica, ACM TODS, VLDB Journal, Distributed and Parallel Databases, Knowledge and Information Systems, IEEE TKDE, Information Systems, Information Sciences, DKE, Data Mining and Knowledge Discovery, Pattern Recognition Letters, Pervasive and Mobile Computing, International Journal of Data Warehousing and Mining, Journal of Computing Science and Engineering, Journal of Zhejiang University

    Program Committee Memberships:
    2014: VLDB, EDBT (Demonstrations Track), CAiSE, DASFAA
    2013: SIGMOD, CIKM, ICDM, BigData, ECMLPKDD, PAKDD, WISE, SSTD, DaWaK, DATA, ANT, STAKE, INTELLI, EIDWT, PADM, MEDI
    2012: KDD, ICDE, ECMLPKDD, CAiSE, PAKDD, WISE, WebDB, DaWaK, AP-Cloud, PinSoDa, INTELLI, DATA, ADMA
    2011: KDD, EDBT, ECMLPKDD, CAiSE, PAKDD, WISE, ESWC, DaWaK, CISIS, STAKE, ADMA, ADBIS, IDEAS
    2010: VLDB, CIKM, ECMLPKDD, ICDE PhD Workshop, PAKDD, WISE, UMMM, APSIPA, CISIS, ADBIS, SemData@VLDB
    2009: ICDE (Demonstrations Track), PAKDD