��<!DOCTYPE html PUBLIC "-//w3c//dtd html 4.0 transitional//en"> <html><head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="GENERATOR" content="Microsoft FrontPage 5.0"> <meta name="keywords" content="Panagiotis, Karras, Panos"> <meta name="description" content="Panagiotis Karras, Panagiotis, Panos, Homepage, Computer Science"> <meta name="Author" content="Panagiotis Karras"><title>Panagiotis Karras</title> <style type="text/css"> body { margin-left: 5%; margin-right: 5%; color: black; background: white; } a:link { color: navy; text-decoration:none; } a:visited { color: navy; text-decoration:none; } a:active { color: #555 } a:hover { color: olive } </style></head><body><br> <table border="0" cols="2" width="1050"> <tbody> <tr> <td> <font color="#000080" face="Garamond" size="5"><b>Panagiotis Karras</b></font> <p><font face="Microsoft Sans Serif" size="3">Department of Computer Science<br> University of Copenhagen<br> Sigurdsgade 41<br> Copenhagen, Denmark 2200<br> piekarras at gmail com</font></p> </td> <td> <div align="right"><img src="pk.jpg"></div> </td> </tr> </tbody> </table> <table border="0" width="1050"> <tbody> <tr><td> <hr width="100%"> <p align="justify"><font face="Tahoma" size="3">I am a Professor of Computer Science at <a href="http://di.ku.dk">the University of Copenhagen</a> and faculty affiliate at <a href="http://cs.au.dk">Aarhus University</a>.</font></p> <p align="justify"><font face="Tahoma" size="3">In my research I design robust and versatile methods for data access, mining, and representation.</font></p> <p align="justify"><font face="Tahoma" size="3">I received the MSc in Electrical and Computer Engineering from the <a href="http://www.ece.ntua.gr/">National Technical University of Athens</a>, the PhD in Computer Science from the <a href="http://www.cs.hku.hk/">University of Hong Kong</a>, and the 2008 Young Scientist Award in Physical/Mathematical Science from <a href="http://www.science.org.hk/">HKIS</a>.</font></p> <p align="justify"><font face="Tahoma" size="3">In the past I have held positions at <a href="http://aau.dk/">Aalborg University</a>, <a href="http://skoltech.ru/">Skoltech</a>, <a href="http://rutgers.edu/">Rutgers</a>, <a href="http://nus.edu.sg/">NUS</a>, <a href="http://uzh.ch/">the University of Zurich</a>, and <a href="http://dtu.dk/">DTU</a>.</font></p> <p align="justify"><font color="#3D14B1" face="Tahoma" size="3"> <b>I am looking for motivated <a href="https://phd.nat.au.dk">PhD</a> students.</b><br> See relevant publications below. If you are interested, send me a CV and a letter describing your motivation and interests.</font></p> <hr width="100%"> <font face="Tahoma" size="3"><br> </font><p><font color="#000080" face="Garamond" size="+2">Refereed Conference and Journal Articles</font></font></p> <table><tbody><tr><td><ol> <font face="Tahoma"> </p></li><li><a href="ssl.pdf">Spectral Subgraph Localization</a><br> Ama Bembua Bainson, Amit Boyarski, Judith Hermanns, Petros Petsinis, Niklas Aavad, Casper Dam Larsen, Tiarnan Swayne, Davide Mottin, Alexander M. Bronstein, and Panagiotis Karras<br> <i><a href="https://dblp.uni-trier.de/db/conf/log/">Proc.</a> of <a href="https://logconference.org/">the 2nd</a> Learning on Graphs Conference (<a href="https://logconference.org/">LoG</a>), Virtual Event, November 2023</i><p> </p></li><li><a href="p3240-wu.pdf"><i>k</i>-Best Egalitarian Stable Marriages for Task Assignment</a><br> Siyuan Wu, Leong Hou U, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb16.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 16(11), 2023 (<a href="https://vldb.org/2023/">49th</a> VLDB Conf., Vancouver, Canada, August 2023)</i><p> </p></li><li><a href="p2525-mamoulis.pdf">Adaptive Indexing in High-Dimensional Metric Spaces</a><br> Konstantinos Lampropoulos, Fatemeh Zardbani, Nikos Mamoulis, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb16.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 16(10), 2023 (<a href="https://vldb.org/2023/">49th</a> VLDB Conf., Vancouver, Canada, August 2023)</i><p> </p></li><li><a href="p2514-karras.pdf">Adaptive Indexing of Objects with Spatial Extent</a><br> Fatemeh Zardbani, Nikos Mamoulis, Stratos Idreos, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb16.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 16(9), 2023 (<a href="https://vldb.org/2023/">49th</a> VLDB Conf., Vancouver, Canada, August 2023)</i><p> </p></li><li><a href="p1058-karras.pdf">Marigold: Efficient <i>k</i>-means Clustering in High Dimensions</a><br> Kasper Overgaard Mortensen, Fatemeh Zardbani, Mohammad Ahsanul Haque, Steinn Ymir Agustsson, Davide Mottin, Philip Hofmann, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb16.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 16(7), 2023 (<a href="https://vldb.org/2023/">49th</a> VLDB Conf., Vancouver, Canada, August 2023)</i><p> </p></li><li><a href="p361-karras.pdf">SIFTER: Space-Efficient Value Iteration for Finite-Horizon MDPs</a><br> Konstantinos Skitsas, Ioannis Papageorgiou, Sadegh Talebi, Verena Kantere, Michael Katehakis, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb16.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 16(1), 2022 (<a href="https://vldb.org/2023/">49th</a> VLDB Conf., Vancouver, Canada, August 2023)</i><p> </p></li><li><a href="holistic.pdf">Holistic Prediction on a Time-Evolving Attributed Graph</a><br> Shohei Yamasaki, Yuya Sasaki, Panagiotis Karras, and Makoto Onizuka<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/acl/">Proc.</a> of <a href="https://2023.aclweb.org/">the 61st</a> Annual Meeting of the Association for Computational Linguistics (<a href="https://www.aclweb.org/">ACL</a>), Toronto, Canada, July 2023</i><p> </p></li><li><a href="atrapos.pdf">Atrapos: Real-time Evaluation of Metapath Qery Workloads</a><br> Serafeim Chatzopoulos, Thanasis Vergoulis, Dimitrios Skoutas, Theodore Dalamagas, Christos Tryfonopoulos, and Panagiotis Karras<br> <i><a href="https://dblp.uni-trier.de/db/conf/www/www2023.html">Proc.</a> of <a href="https://www2023.thewebconf.org/">the 32nd</a> ACM Web Conference (<a href="https://www.sigweb.org/conferences/acm-sigweb-conferences/the-web-conference">WWW</a>), Austin, Texas, May 2023</i><p> </p></li><li><a href="grasp_tkdd.pdf">GRASP: Scalable Graph Alignment by Spectral Corresponding Functions</a><br> Judith Hermanns, Konstantinos Skitsas, Anton Tsitsulin, Marina Munkhoeva, Alexander Kyster, Simon Nielsen, Alexander M. Bronstein, Davide Mottin, and Panagiotis Karras<br> <i><a href="https://dblp.org/db/journals/tkdd/tkdd17.html">ACM</a> Transactions on Knowledge Discovery from Data (<a href="https://dl.acm.org/journal/tkdd">TKDD</a>), 17(4), May 2023</i><p> </p></li><li><a href="evalign.pdf">Comprehensive Evaluation of Algorithms for Unrestricted Graph Alignment</a><br> Konstantinos Skitsas, Karol Orlowski, Judith Hermanns, Davide Mottin, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/edbt/edbt2023.html">Proc.</a> of <a href="http://edbticdt2023.cs.uoi.gr/">the 26th</a> Intl Conf. on Extending Database Technology (<a href="https://www.edbt.org/">EDBT</a>), Ioannina, Greece, March 2023</i><p> </p></li><li><a href="pvoter.pdf">Maximizing the Probability of Fixation in the Positional Voter Model</a><br> Petros Petsinis, Andreas Pavlogiannis, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/aaai/aaai2023.html">Proc.</a> of <a href="https://aaai-23.aaai.org/">the 37th</a> AAAI Conf. on Artificial Intelligence (<a href="http://www.aaai.org/">AAAI</a>), Washington, DC, USA, February 2023</i><p> </p></li><li><a href="TKDE3071081.pdf">On the Robustness of Diffusion in a Network Under Node Attacks</a><br> Alvis Logins, Yuchen Li, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/tkde/tkde34.html">IEEE</a> Transactions on Knowledge and Data Engineering (<a href="http://www.computer.org/tkde/">TKDE</a>), 34(12), December 2022</i><p> </p></li><li><a href="discon.pdf">One-off Disclosure Control by Heterogeneous Generalization</a><br> Olga Gkountouna, Katerina Doka, Mingqiang Xue, Jianneng Cao, and Panagiotis Karras<br> <i><a href="https://dblp.org/db/conf/uss/uss2022.html">Proc.</a> of <a href="https://www.usenix.org/conference/usenixsecurity22">the 31st</a> <a href="https://www.usenix.org/">USENIX</a> Security Symposium, Boston, MA, August 2022</i><p> </p></li><li><a href="bvoter.pdf">Invasion Dynamics in the Biased Voter Process</a><br> Loke Durocher, Panagiotis Karras, Andreas Pavlogiannis, and Josef Tkadlec<br> <i><a href="http://dblp.uni-trier.de/db/conf/ijcai/ijcai2022.html">Proc.</a> of <a href="https://aaai.org/Conferences/AAAI-22">the 31st</a> Intl Joint Conf. on Artificial Intelligence (<a href="https://www.ijcai.org/">IJCAI</a>), Vienna, Austria, July 2022</i><p> </p></li><li><a href="gsm.pdf">A Content Recommendation Policy for Gaining Subscribers</a><br> Konstantinos Theocharidis, Manolis Terrovitis, Spiros Skiadopoulos, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/sigir/sigir2022.html">Proc.</a> of <a href="http://sigir.org/sigir2022/">the 45th</a> ACM SIGIR Intl Conf. on Research and Development in Information Retrieval (<a href="http://sigir.org/">SIGIR</a>), Madrid, Spain, July 2022</i><p> </p></li><li><a href="sieve.pdf">SIEVE: A Space-Efficient Algorithm for Viterbi Decoding</a><br> Martino Ciaperoni, Aristides Gionis, Athanasios Katsamanis, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/sigmod/sigmod2022.html">Proc.</a> of <a href="https://2022.sigmod.org/">the 2022</a> ACM SIGMOD Intl Conf. on Management of Data (<a href="http://sigmod.org/">SIGMOD</a>), Philadelphia, PA, June 2022</i><p> </p></li><li><a href="pmoran.pdf">Fixation Maximization in the Positional Moran Process</a><br> Joachim Brendborg, Panagiotis Karras, Andreas Pavlogiannis, Asger Ullersted Rasmussen, and Josef Tkadlec<br> <i><a href="http://dblp.uni-trier.de/db/conf/aaai/aaai2022.html">Proc.</a> of <a href="https://aaai.org/Conferences/AAAI-22">the 36th</a> AAAI Conf. on Artificial Intelligence (<a href="http://www.aaai.org/">AAAI</a>), Virtual Event, February 2022</i><p> </p></li><li><a href="sparseshield.pdf">Sparse Shield: Social Network Immunization vs. Harmful Speech</a><br> Alexandru Petrescu, Ciprian-Octavian Truica, Elena Simona Apostol, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/cikm/cikm2021.html">Proc.</a> of <a href="https://www.cikm2021.org/">the 30th</a> ACM Conf. on Information and Knowledge Management (<a href="http://www.cs.umbc.edu/cikm/">CIKM</a>), Virtual Event, Queensland, Australia, November 2021</i><p> </p></li><li><a href="cqa.pdf">Centerpoint Query Authentication</a><br> Magnus Haxen, Morten Raeburn, Peyman Afshani, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/cikm/cikm2021.html">Proc.</a> of <a href="https://www.cikm2021.org/">the 30th</a> ACM Conf. on Information and Knowledge Management (<a href="http://www.cs.umbc.edu/cikm/">CIKM</a>), Virtual Event, Queensland, Australia, November 2021</i><p> </p></li><li><a href="bgaa.pdf">Boosting Graph Alignment Algorithms</a><br> Alexander Frederiksen Kyster, Simon Daugaard Nielsen, Judith Hermanns, Davide Mottin, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/cikm/cikm2021.html">Proc.</a> of <a href="https://www.cikm2021.org/">the 30th</a> ACM Conf. on Information and Knowledge Management (<a href="http://www.cs.umbc.edu/cikm/">CIKM</a>), Virtual Event, Queensland, Australia, November 2021</i><p> </p></li><li><a href="grasp.pdf">GRASP: Graph Alignment Through Spectral Signatures</a><br> Judith Hermanns, Anton Tsitsulin, Marina Munkhoeva, Alexander M. Bronstein, Davide Mottin, and Panagiotis Karras<br> <i><a href="https://dblp.org/db/conf/apweb/apweb2021-1.html">Proc.</a> of <a href="https://link.springer.com/book/10.1007/978-3-030-85896-4">the 5th</a> Intl Conf. on Web and Big Data (<a href="https://link.springer.com/conference/apwebwaim">APWeb-WAIM</a>), Guangzhou, China, August 2021</i><p> </p></li><li><a href="cohorts.pdf">Finding Geo-Social Cohorts in Location-Based Social Networks</a><br> Muhammad Aamir Saleem, Toon Calders, Torben Bach Pedersen, and Panagiotis Karras<br> <i><a href="https://dblp.org/db/conf/apweb/apweb2021-2.html">Proc.</a> of <a href="https://link.springer.com/book/10.1007/978-3-030-85896-4">the 5th</a> Intl Conf. on Web and Big Data (<a href="https://link.springer.com/conference/apwebwaim">APWeb-WAIM</a>), Guangzhou, China, August 2021</i><p> </p></li><li><a href="frede.pdf">FREDE: Anytime Graph Embeddings</a><br> Anton Tsitsulin, Marina Munkhoeva, Davide Mottin, Panagiotis Karras, Ivan Oseledets, and Emmanuel M�ller<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb14.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 14(6), 2021 (<a href="https://vldb.org/2021/">47th</a> VLDB Conf., Copenhagen, August 2021)</i><p> </p></li><li><a href="cof.pdf">Context-aware Outstanding Fact Mining from Knowledge Graphs</a><br> Yueji Yang, Yuchen Li, Panagiotis Karras, and Anthony K. H. Tung<br> <i><a href="http://dblp.uni-trier.de/db/conf/kdd/kdd2021.html">Proc.</a> of <a href="https://www.kdd.org/kdd2021/">the 27th</a> ACM SIGKDD Intl Conf. on Knowledge Discovery & Data Mining (<a href="http://www.kdd.org/">KDD</a>), Virtual Event, Singapore, August 2021</i><p> </p></li><li><a href="dla.pdf">A Deep Learning Architecture for Audience Interest Prediction of News Topic on Social Media</a><br> Ciprian-Octavian Truica, Elena Simona Apostol, Teodor Stefu, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/edbt/edbt2021.html">Proc.</a> of <a href="https://edbticdt2021.cs.ucy.ac.cy/">the 24th</a> Intl Conf. on Extending Database Technology (<a href="https://www.edbt.org/">EDBT</a>), Virtual Event, Cyprus, March 2021</i><p> </p></li><li><a href="p46.pdf">Revisiting Multidimensional Adaptive Indexing</a><br> Anders Hammersh�j Jensen, Frederik Aarup Lauridsen, Fatemeh Zardbani, Stratos Idreos, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/edbt/edbt2021.html">Proc.</a> of <a href="https://edbticdt2021.cs.ucy.ac.cy/">the 24th</a> Intl Conf. on Extending Database Technology (<a href="https://www.edbt.org/">EDBT</a>), Virtual Event, Cyprus, March 2021</i><p> </p></li><li><a href="acces_tsas.pdf">Indoor Quality-of-position Visual Assessment Using Crowdsourced Fingerprint Maps</a><br> Christos Laoudias, Artyom Nikitin, Panagiotis Karras, Moustafa Youssef, and Demetrios Zeinalipour-Yazti<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/tsas/tsas7.html">ACM</a> Transactions on Spatial Algorithms and Systems (<a href="https://dl.acm.org/journal/tsas">TSAS</a>), 7(2), February 2021</i><p> </p></li><li><a href="ca_ltm.pdf">Selecting Influential Features by a Learnable Content-Aware Linear Threshold Model</a><br> Ansh Khurana, Alvis Logins, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/cikm/cikm2020.html">Proc.</a> of <a href="https://www.cikm2020.org/">the 29th</a> ACM Conf. on Information and Knowledge Management (<a href="http://www.cs.umbc.edu/cikm/">CIKM</a>), Virtual Event, Ireland, October 2020</i><p> </p></li><li><a href="gim.pdf">Geodemographic Influence Maximization</a><br> Kaichen Zhang, Jingbo Zhou, Donglai Tao, Panagiotis Karras, Qing Li, and Hui Xiong<br> <i><a href="http://dblp.uni-trier.de/db/conf/kdd/kdd2020.html">Proc.</a> of <a href="https://www.kdd.org/kdd2020/">the 26th</a> ACM SIGKDD Intl Conf. on Knowledge Discovery & Data Mining (<a href="http://www.kdd.org/">KDD</a>), Virtual Event, August 2020</i><p> </p></li><li><a href="shape_of_data.pdf">The Shape of Data: Intrinsic Distance for Data Distributions</a><br> Anton Tsitsulin, Marina Munkhoeva, Davide Mottin, Panagiotis Karras, Alexander M. Bronstein, Ivan Oseledets, and Emmanuel M�ller<br> <i><a href="https://dblp.uni-trier.de/db/conf/iclr/iclr2020.html">Proc.</a> of <a href="https://iclr.cc/Conferences/2020">the 8th</a> Intl Conf. on Learning Representations (<a href="https://iclr.cc/">ICLR</a>), Addis Ababa, Ethiopia, April 2020</i><p> </p></li><li><a href="robustIC.pdf">On the Robustness of Cascade Diffusion under Node Attacks</a><br> Alvis Logins, Yuchen Li, and Panagiotis Karras<br> <i><a href="https://dblp.uni-trier.de/db/conf/www/www2020.html">Proc.</a> of <a href="https://www2020.thewebconf.org/">the 29th</a> Intl World Wide Web Conf. (<a href="http://www.iw3c2.org/">WWW</a>), Taipei, April 2020</i><p> </p></li><li><a href="paper 289.pdf">Revisiting the Theory and Practice of Database Cracking</a><br> Fatemeh Zardbani, Peyman Afshani, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/edbt/edbt2020.html">Proc.</a> of <a href="https://diku-dk.github.io/edbticdt2020/">the 23rd</a> Intl Conf. on Extending Database Technology (<a href="https://www.edbt.org/">EDBT</a>), Copenhagen, Denmark, March 2020</i><p> </p></li><li><a href="AAAI-TziavelisN.3062.pdf">Fair Procedures for Fair Stable Marriage Outcomes</a><br> Nikolaos Tziavelis, Ioannis Giannakopoulos, Rune Quist Johansen, Katerina Doka, Nectarios Koziris, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/aaai/aaai2020.html">Proc.</a> of <a href="https://aaai.org/Conferences/AAAI-20">the 34th</a> AAAI Conf. on Artificial Intelligence (<a href="http://www.aaai.org/">AAAI</a>), New York, February 2020</i><p> </p></li><li><a href="esmqt.pdf">Equitable Stable Matchings in Quadratic Time</a><br> Nikolaos Tziavelis, Ioannis Giannakopoulos, Katerina Doka, Nectarios Koziris, and Panagiotis Karras<br> <i><a href="https://dblp.uni-trier.de/db/conf/nips/nips2019.html">Proc.</a> of <a href="https://nips.cc/Conferences/2019/">the 33rd</a> Conf. on Neural Information Processing Systems (<a href="https://nips.cc/">NeurIPS</a>), Vancouver, Canada, December 2019</i><p> </p></li><li><a href="mfasc.pdf">Figuring out the User in a Few Steps: Bayesian Multifidelity Active Search with Cokriging</a><br> Nikita Klyuchnikov, Davide Mottin, Georgia Koutrika, Emmanuel M�ller, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/kdd/kdd2019.html">Proc.</a> of <a href="https://www.kdd.org/kdd2019/">the 25th</a> ACM SIGKDD Intl Conf. on Knowledge Discovery & Data Mining (<a href="http://www.kdd.org/">KDD</a>), Anchorage, Alaska, August 2019</i><p> </p></li><li><a href="mmni.pdf">Maximizing Multifaceted Network Influence</a><br> Yuchen Li, Ju Fan, George V. Ovchinnikov, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/icde/icde2019.html">Proc.</a> of <a href="http://conferences.cis.umac.mo/icde2019/">the 35th</a> IEEE Intl Conf. on Data Engineering (<a href="http://tab.computer.org/tcde/icde_conf.html">ICDE</a>), Macau, China, April 2019</i><p> </p></li><li><a href="wma.pdf">Multicapacity Facility Selection in Networks</a><br> Alvis Logins, Panagiotis Karras, and Christian S. Jensen<br> <i><a href="http://dblp.uni-trier.de/db/conf/icde/icde2019.html">Proc.</a> of <a href="http://conferences.cis.umac.mo/icde2019/">the 35th</a> IEEE Intl Conf. on Data Engineering (<a href="http://tab.computer.org/tcde/icde_conf.html">ICDE</a>), Macau, China, April 2019</i><p> </p></li><li><a href="netimmun.pdf">An Experimental Study of Network Immunization</a><br> Alvis Logins and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/edbt/edbt2019.html">Proc.</a> of <a href="http://edbticdt2019.inesc-id.pt/">the 22nd</a> Intl Conf. on Extending Database Technology (<a href="https://www.edbt.org/">EDBT</a>), Lisbon, Portugal, March 2019</i><p> </p></li><li><a href="netlsd.pdf">NetLSD: Hearing the Shape of a Graph</a><br> Anton Tsitsulin, Davide Mottin, Panagiotis Karras, Alexander M. Bronstein, and Emmanuel M�ller<br> <i><a href="http://dblp.uni-trier.de/db/conf/kdd/kdd2018.html">Proc.</a> of <a href="https://www.kdd.org/kdd2018/">the 24th</a> ACM SIGKDD Intl Conf. on Knowledge Discovery & Data Mining (<a href="http://www.kdd.org/">KDD</a>), London, United Kingdom, August 2018</i><p> </p></li><li><a href="verse.pdf">VERSE: Versatile Graph Embeddings from Similarity Measures</a><br> Anton Tsitsulin, Davide Mottin, Panagiotis Karras, and Emmanuel M�ller<br> <i><a href="https://dblp.uni-trier.de/db/conf/www/www2018.html">Proc.</a> of <a href="https://www2018.thewebconf.org/">the 27th</a> Intl World Wide Web Conf. (<a href="http://www.iw3c2.org/">WWW</a>), Lyon, France, April 2018</i><p> </p></li><li><a href="crvsi.pdf">Content Recommendation for Viral Social Influence</a><br> Sergei Ivanov, Konstantinos Theocharidis, Manolis Terrovitis, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/sigir/sigir2017.html">Proc.</a> of <a href="http://sigir.org/sigir2017/">the 40th</a> ACM SIGIR Intl Conf. on Research and Development in Information Retrieval (<a href="http://sigir.org/">SIGIR</a>), Tokyo, Japan, August 2017</i><p> </p></li><li><a href="mdm17_acces.pdf">Indoor Localization Accuracy Estimation from Fingerprint Data</a><br> Artyom Nikitin, Christos Laoudias, Georgios Chatzimilioudis, Panagiotis Karras, and Demetrios Zeinalipour-Yazti<br> <i><a href="http://dblp.uni-trier.de/db/conf/mdm/mdm2017.html">Proc.</a> of <a href="http://mdmconferences.org/mdm2017/">the 18th</a> IEEE Intl Conf. on Mobile Data Management (<a href="http://mdmconferences.org/">MDM</a>), Daejeon, South Korea, May 2017</i><p> </p></li><li><a href="harvester.pdf">Harvester: Influence Optimization in Symmetric Interaction Networks</a><br> Sergei Ivanov and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/dsaa/dsaa2016.html">Proc.</a> of <a href="https://sites.ualberta.ca/~dsaa16/">the 3rd</a> IEEE Intl Conf. on Data Science and Advanced Analytics (<a href="http://www.dsaa.co/">DSAA</a>), Montreal, Canada, October 2016</i><p> </p></li><li><a href="securadapt.pdf">Adaptive Indexing over Encrypted Numeric Data</a><br> Panagiotis Karras, Artyom Nikitin, Muhammad Saad, Rudrika Bhatt, Denis Antyukhov, Stratos Idreos<br> <i><a href="http://dblp.uni-trier.de/db/conf/sigmod/sigmod2016.html">Proc.</a> of <a href="http://sigmod2016.org/">the 2016</a> ACM SIGMOD Intl Conf. on Management of Data (<a href="http://sigmod.org/">SIGMOD</a>), San Francisco, California, June 2016</i><p> </p></li><li><a href="transformers.pdf">TRANSFORMERS: Robust spatial joins on non-uniform data distributions</a><br> Mirjana Pavlovic, Thomas Heinis, Farhan Tauheed, Panagiotis Karras, and Anastasia Ailamaki<br> <i><a href="http://dblp.uni-trier.de/db/conf/icde/icde2016.html">Proc.</a> of <a href="http://www.icde2016.fi/">the 32nd</a> IEEE Intl Conf. on Data Engineering (<a href="http://tab.computer.org/tcde/icde_conf.html">ICDE</a>), Helsinki, Finland, May 2016</i><p> </p></li><li><a href="FTL.pdf">Fuzzy trajectory linking</a><br> Huayu Wu, Mingqiang Xue, Jianneng Cao, Panagiotis Karras, Wee Siong Ng, and Kee Kiat Koo<br> <i><a href="http://dblp.uni-trier.de/db/conf/icde/icde2016.html">Proc.</a> of <a href="http://www.icde2016.fi/">the 32nd</a> IEEE Intl Conf. on Data Engineering (<a href="http://tab.computer.org/tcde/icde_conf.html">ICDE</a>), Helsinki, Finland, May 2016</i><p> </p></li><li><a href="tdsc14.pdf">Collaborative Search Log Sanitization: Toward Differential Privacy and Boosted Utility</a><br> Yuan Hong, Jaideep Vaidya, Haibing Lu, Panagiotis Karras, and Sanjay Goel<br> <i><a href="http://dblp.uni-trier.de/db/journals/tdsc/tdsc12.html">IEEE</a> Transactions on Dependable and Secure Computing (<a href="https://www.computer.org/web/tdsc/">TDSC</a>), 12(5), 2015</i><p> </p></li><li><a href="p519-dokaAAemb.pdf"><i>k</i>-Anonymization by Freeform Generalization</a><br> Katerina Doka, Mingqiang Xue, Dimitrios Tsoumakos, and Panagiotis Karras<br> <i><a href="http://dblp.uni-trier.de/db/conf/ccs/asiaccs2015.html">Proc.</a> of <a href="http://icsd.i2r.a-star.edu.sg/asiaccs15/">the 10th</a> ACM Symposium on Information, Computer and Communications Security (<a href="https://www.sigsac.org/">AsiaCCS</a>), Singapore, April 2015</i><p> </p></li><li><a href="esma.pdf">An Equitable Solution to the Stable Marriage Problem</a><br> Ioannis Giannakopoulos, Panagiotis Karras, Dimitrios Tsoumakos, Katerina Doka, Nectarios Koziris<br> <i><a href="http://dblp.uni-trier.de/db/conf/ictai/ictai2015.html">Proc.</a> of <a href="https://sites.google.com/site/ictai2015italy/">the 27th</a> IEEE Intl Conf. on Tools with Artificial Intelligence (<a href="http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000763">ICTAI</a>), Vietri sul Mare, Italy, November 2015</i><p> </p></li><li><a href="sparql_caching.pdf">Graph-Aware, Workload-Adaptive SPARQL Query Caching</a><br> Nikolaos Papailiou, Dimitrios Tsoumakos, Panagiotis Karras, and Nectarios Koziris<br> <i><a href="http://dblp.uni-trier.de/db/conf/sigmod/sigmod2015.html">Proc.</a> of <a href="http://www.sigmod2015.org/">the 2015</a> ACM SIGMOD Intl Conf. on Management of Data (<a href="http://sigmod.org/">SIGMOD</a>), Melbourne, Australia, June 2015</i><p> </p></li><li><a href="L-opacity.pdf">L-opacity: Linkage-Aware Graph Anonymization</a><br> Sadegh Nobari, Panagiotis Karras, HweeHwa Pang, and St�phane Bressan<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/edbt/edbt2014.html">Proc.</a> of <a href="http://www.edbticdt2014.gr/">the 17th</a> Intl Conf. on Extending Database Technology (<a href="http://www.edbt.org/">EDBT</a>), Athens, Greece, March 2014</i><p> </p></li><li><a href="">On the Privacy and Utility of Anonymized Social Networks</a><br> Yi Song, Xuesong Lu, Sadegh Nobari, St�phane Bressan, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/ijaras/ijaras4.html">International Journal of Adaptive, Resilient and Autonomic Systems</a> (<a href="http://www.igi-global.com/journal/international-journal-adaptive-resilient-autonomic/">IJARAS</a>), 4(2), 2013</i><p> </p></li><li><a href="">An effective and efficient parallel approach for random graphs generation over GPUs</a><br> St�phane Bressan, Alfredo Cuzzocrea, Panagiotis Karras, Xuesong Lu, and Sadegh Nobari<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/jpdc/jpdc73.html">Journal of Parallel and Distributed Computing</a> (<a href="http://www.sciencedirect.com/science/journal/07437315">JPDC</a>), 73(3), March 2013</i><p> </p></li><li><a href="H2RDFplus.pdf">H2RDF+: High-performance Distributed Joins over Large-scale RDF Graphs</a><br> Nikolas Papailiou, Ioannis Konstantinou, Dimitrios Tsoumakos, Panagiotis Karras, and Nectarios Koziris<br> <i><a href="http://dblp.uni-trier.de/db/conf/bigdataconf/bigdataconf2013.html">Proc.</a> of <a href="http://cci.drexel.edu/bigdata/bigdata2013/">the 2013</a> IEEE Intl Conf. on Big Data (<a href="http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=21311">IEEE BigData</a>), Santa Clara, California, October 2013</i><p> </p></li><li><a href="p814-karras.pdf">eSkyline: Processing Skyline Queries over Encrypted Data</a><br> Suvarna Bothe, Panagiotis Karras, and Akrivi Vlachou<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb6.html">Proc.</a> of <a href="http://www.vldb.org/2013/">the 39th</a> Intl Conf. on Very Large Data Bases (<a href="http://www.vldb.org/">VLDB</a>), Riva del Garda, Italy, August 2013</i><p> </p></li><li><a href="sigfp132-nobari.pdf">TOUCH: In-Memory Spatial Join by Hierarchical Data-Oriented Partitioning</a><br> Sadegh Nobari, Farhan Tauheed, Thomas Heinis, Panagiotis Karras, St�phane Bressan, and Anastasia Ailamaki<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/sigmod/sigmod2013.html">Proc.</a> of <a href="http://www.sigmod.org/2013/">the 2013</a> ACM SIGMOD Intl Conf. on Management of Data (<a href="http://www.sigmod.org/">SIGMOD</a>), New York, NY, June 2013</i><p> </p></li><li><a href="pvldb5(11)_p1388.pdf">Publishing Microdata with a Robust Privacy Guarantee</a><br> Jianneng Cao and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb5.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 5(11), July 2012 (<a href="http://www.vldb2012.org/">38th</a> VLDB Conf., Istanbul, August 2012)</i><p> </p></li><li><a href="StochasticDatabaseCracking.pdf">Stochastic Database Cracking: Towards Robust Adaptive Indexing in Main-Memory Column-Stores</a><br> Felix Halim, Stratos Idreos, Panagiotis Karras, and Roland H. C. Yap<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb5.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 5(6), February 2012 (<a href="http://www.vldb2012.org/">38th</a> VLDB Conf., Istanbul, August 2012)</i><p> </p></li><li><a href="fp021-xue.pdf">Delineating Social Network Data Anonymization via Random Edge Perturbation</a><br> Mingqiang Xue, Chedy Ra�ssi, Panagiotis Karras, Panos Kalnis, and Hung Keng Pung<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/cikm/cikm2012.html">Proc.</a> of <a href="http://www.ittc.ku.edu/CIKM12/">the 21st</a> ACM Conf. on Information and Knowledge Management (<a href="http://www.cs.umbc.edu/cikm/">CIKM</a>), Maui, Hawaii, October 2012</i><p> </p></li><li><a href="reachability.pdf">Discretionary Social Network Data Revelation with a User-Centric Utility Guarante</a><br> Song Yi, Panagiotis Karras, Sadegh Nobari, Giorgos Cheliotis, Mingqiang Xue, and St�phane Bressan<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/cikm/cikm2012.html">Proc.</a> of <a href="http://www.ittc.ku.edu/CIKM12/">the 21st</a> ACM Conf. on Information and Knowledge Management (<a href="http://www.cs.umbc.edu/cikm/">CIKM</a>), Maui, Hawaii, October 2012</i><p> </p></li><li><a href="rt419-xue.pdf">Anonymizing Set-Valued Data by Nonreciprocal Recoding</a><br> Mingqiang Xue, Panagiotis Karras, Chedy Ra�ssi, Jaideep Vaidya, and Kian-Lee Tan<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/kdd/kdd2012.html">Proc.</a> of <a href="http://kdd2012.sigkdd.org/">the 18th</a> ACM SIGKDD Intl Conf. on Knowledge Discovery and Data Mining (<a href="http://www.kdd.org/">KDD</a>), Beijing, China, August 2012</i><p> </p></li><li><a href="mcqCR.pdf">Cooperative Scalable Moving Continuous Query Processing</a><br> Xiaohui Li, Panagiotis Karras, Lei Shi, Kian-Lee Tan, and Christian S. Jensen<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/mdm/mdm2012.html">Proc.</a> of <a href="http://mdmconferences.org/mdm2012/">the 13th</a> IEEE Intl Conf. on Mobile Data Management (<a href="http://www.ieee.org/conferences_events/conferences/conferencedetails/index.htm?Conf_ID=20172">MDM</a>), Bengaluru, India, July 2012</i><p> </p></li><li><a href="ssdbm2012.pdf">Sensitive Label Privacy Protection on Social Network Data</a><br> Yi Song, Panagiotis Karras, Qian Xiao, and St�phane Bressan<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/conf/ssdbm/ssdbm2012.html">Proc.</a> of <a href="http://cgi.di.uoa.gr/~ssdbm12/">the 24th</a> Intl Conf. on Scientific and Statistical Database Management (<a href="http://www.ssdbm.org/">SSDBM</a>), Chania, Crete, Greece, June 2012</i><p> </p></li><li><a href="ppo143-nobari.pdf">Scalable Parallel Minimum Spanning Forest Computation</a><br> Sadegh Nobari, Thanh-Tung Cao, Panagiotis Karras, and St�phane Bressan<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/ppopp/ppopp2012.html">Proc.</a> of <a href="http://dynopt.org/ppopp-2012/">the 17th</a> ACM SIGPLAN Symp. on Principles and Practice of Parallel Programming (<a href="http://www.sigplan.org/ppopp.htm">PPoPP</a>), New Orleans, Louisiana, February 2012</i><p> </p></li><li><a href="TKDE-AMN.pdf">Authenticated Multi-Step Nearest Neighbor Search</a><br> Stavros Papadopoulos, Lixing Wang, Yin Yang, Dimitris Papadias, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/tkde/tkde23.html">IEEE</a> Transactions on Knowledge and Data Engineering (<a href="http://www.computer.org/tkde/">TKDE</a>), 23(5), May 2011</i><p> </p></li><li><a href="SABRE.pdf">SABRE: A Sensitive Attribute Bucketization and REdistribution framework for t-closeness</a><br> Jianneng Cao, Panagiotis Karras, Panos Kalnis, and Kian-Lee Tan<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/vldb/vldb20.html">The VLDB Journal</a> (<a href="http://www.vldb.org/vldb_journal/">VLDBJ</a>), 20(1), February 2011</i><p> </p></li><li><a href="cikm645-xue.pdf">Utility-Driven Anonymization in Data Publishing</a><br> Mingqiang Xue, Panagiotis Karras, Chedy Ra�ssi, and Hung Keng Pung<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/cikm/cikm2011.html">Proc.</a> of <a href="http://www.cikm2011.org/">the 20th</a> ACM Conf. on Information and Knowledge Management (<a href="http://www.cs.umbc.edu/cikm/">CIKM</a>), Glasgow, United Kingdom, October 2011</i><p> </p></li><li><a href="p1334-kashyap.pdf">Scalable kNN Search on Vertically Stored Time Series</a><br> Shrikant Kashyap and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/kdd/kdd2011.html">Proc.</a> of <a href="http://www.kdd.org/kdd2011/">the 17th</a> ACM SIGKDD Intl Conf. on Knowledge Discovery and Data Mining (<a href="http://www.acm.org/sigs/sigkdd/">KDD</a>), San Diego, California, August 2011</i><p> </p></li><li><a href="rg.pdf">Fast Random Graph Generation</a><br> Sadegh Nobari, Xuesong Lu, Panagiotis Karras, and St�phane Bressan<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/edbt/edbt2011.html">Proc.</a> of <a href="http://edbticdt2011.it.uu.se/">the 14th</a> Intl Conf. on Extending Database Technology (<a href="http://www.edbt.org/">EDBT</a>), Uppsala, Sweden, March 2011</i><p> </p></li><li><a href="p-uncertainty.pdf">�-uncertainty: Inference-Proof Transaction Anonymization</a><br> Jianneng Cao, Panagiotis Karras, Chedy Ra�ssi, and Kian-Lee Tan<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb3.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 3(1) (<a href="http://www.vldb2010.org/">36th</a> VLDB Conf., Singapore, September 2010)</i><p> </p></li><li><a href="icd.pdf">CW2I: Community Data Indexing for Complex Query Processing</a><br> Mei Hui, Panagiotis Karras, and Beng Chin Ooi<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/waim/waim2010.html">Proc.</a> of <a href="http://www.cse.ust.hk/~waim2010/">the 11th</a> Intl Conf. on Web-Age Information Management (WAIM), Jiuzhaigou, China, July 2010</i><p> </p></li><li><a href="Nectar10fhalim.pdf">Local Search in Histogram Construction</a><br> Felix Halim, Panagiotis Karras, and Roland H. C. Yap<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/aaai/aaai2010.html">Proc.</a> of <a href="http://www.aaai.org/Conferences/AAAI/aaai10.php">the 24th</a> AAAI Conf. on Artificial Intelligence (<a href="http://www.aaai.org/Conferences/AAAI/aaai.php">AAAI</a>), Atlanta, Georgia, July 2010</i><p> </p></li><li><a href="paper201.pdf">Optimality and Scalability in Lattice Histogram Construction</a><br> Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb2.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 2(1) (<a href="http://vldb2009.org/">35th</a> VLDB Conf., Lyon, France, August 2009)</i><p> </p></li><li><a href="framework.pdf">A Framework for Efficient Data Anonymization under Privacy and Accuracy Constraints</a><br> Gabriel Ghinita, Panagiotis Karras, Panos Kalnis, and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/tods/tods34.html">ACM</a> Transactions on Data Base Systems (<a href="http://tods.acm.org/">TODS</a>), 34(2), June 2009</i><p> </p></li><li><a href="KM0563-halim.pdf">Fast and Effective Histogram Construction</a><br> Felix Halim, Panagiotis Karras, and Roland H. C. Yap<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/cikm/cikm2009.html">Proc.</a> of <a href="http://www.comp.polyu.edu.hk/conference/cikm2009/">the 18th</a> ACM Conf. on Information and Knowledge Management (<a href="http://www.cs.umbc.edu/cikm/">CIKM</a>), Hong Kong, China, November 2009</i><p> </p></li><li><a href="multiplicative.pdf">Multiplicative Synopses for Relative-Error Metrics</a><br> Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/edbt/edbt2009.html">Proc.</a> of <a href="http://www.math.spbu.ru/edbticdt/">the 12th</a> Intl Conf. on Extending Database Technology (<a href="http://www.edbt.org/">EDBT</a>), Saint-Petersburg, Russia, March 2009</i><p> </p></li><li><a href="hexastore.pdf">Hexastore: Sextuple Indexing for Semantic Web Data Management</a><br> Cathrin Weiss, Panagiotis Karras, and Abraham Bernstein<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/pvldb/pvldb1.html">Proc.</a> of the VLDB Endowment (<a href="http://vldb.org/pvldb/">PVLDB</a>), 1(1) (<a href="https://www.cs.auckland.ac.nz/research/conferences/vldb08/">34th</a> VLDB Conf., Auckland, New Zealand, August 2008)</i><p> </p></li><li><a href="hsoeg.pdf">Hierarchical Synopses with Optimal Error Guarantees</a> [<a href="appendix_hsoeg.pdf">appendix</a>]<br> Panagiotis Karras and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/~ley/db/journals/tods/tods33.html">ACM</a> Transactions on Data Base Systems (<a href="http://tods.acm.org/">TODS</a>), 33(3), August 2008</i><p> </p><li><a href="ICDE08_conference_0189.pdf">Lattice Histograms: a Resilient Synopsis Structure</a><br> Panagiotis Karras and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/icde/icde2008.html">Proc.</a> of <a href="http://www.icde2008.org/">the 24th</a> IEEE Intl Conf. on Data Engineering (<a href="http://www.ipsi.fraunhofer.de/tcde/conf_e.html">ICDE</a>), Canc�n, Mexico, April 2008</i><p> </p></li><li><a href="ICDE08_conference_0264.pdf">Common Influence Join: A Natural Join Operation for Spatial Pointsets</a><br> Man Lung Yiu, Nikos Mamoulis, and Panagiotis Karras<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/icde/icde2008.html">Proc.</a> of <a href="http://www.icde2008.org/">the 24th</a> IEEE Intl Conf. on Data Engineering (<a href="http://www.ipsi.fraunhofer.de/tcde/conf_e.html">ICDE</a>), Canc�n, Mexico, April 2008</i><p> </p></li><li><a href="edbt2008_027.pdf">Ring-constrained Join: Deriving Fair Middleman Locations from Pointsets via a Geometric Constraint</a><br> Man Lung Yiu, Panagiotis Karras, and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/edbt/edbt2008.html">Proc.</a> of <a href="http://edbt2008.lina.sciences.univ-nantes.fr/">the 11th</a> Intl Conf. on Extending Database Technology (<a href="http://www.edbt.org/">EDBT</a>), Nantes, France, March 2008</i><p> </p></li><li><a href="vldb2007fawlil.pdf">Fast Anonymization with Low Information Loss</a><br> Gabriel Ghinita, Panagiotis Karras, Panos Kalnis, and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/vldb/vldb2007.html">Proc.</a> of <a href="http://www.vldb.org/archives/website/2007/">the 33rd</a> Intl Conf. on Very Large Data Bases (<a href="http://www.vldb.org/">VLDB</a>), Vienna, September 2007</i><p> </p></li><li><a href="frp301-karras.pdf">Exploiting Duality in Summarization with Deterministic Guarantees</a><br> Panagiotis Karras, Dimitris Sacharidis, and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/kdd/kdd2007.html">Proc.</a> of <a href="http://www.kdd2007.com/">the 13th</a> ACM SIGKDD Intl Conf. on Knowledge Discovery and Data Mining (<a href="http://www.acm.org/sigs/sigkdd/">KDD</a>), San Jose, California, August 2007</i><p> </p></li><li><a href="icde2007_401.pdf">The Haar+ Tree: a Refined Synopsis Data Structure</a><br> Panagiotis Karras and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/icde/icde2007.html">Proc.</a> of <a href="http://www.icde2007.org/">the 23rd</a> IEEE Intl Conf. on Data Engineering (<a href="http://www.ipsi.fraunhofer.de/tcde/conf_e.html">ICDE</a>), Istanbul, April 2007</i><p> </p></li><li><a href="sutc2006_135.pdf">Detecting the Direction of Motion in a Binary Sensor Network</a><br> Panagiotis Karras and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/sutc/sutc2006-1.html">Proc.</a> of <a href="http://sutc2006.asia.edu.tw/">the 1st</a> IEEE Intl Conf. on Sensor Networks, Ubiquitous, and Trustworthy Computing (<a href="http://www.computer.org/portal/site/store/menuitem.41cf17dc879177c86ee948ce8bcd45f3/index.jsp?&amp;pName=store_level1&amp;path=store/P2006&amp;file=p2553.xml&amp;xsl=generic.xsl&amp;">SUTC</a>), Taichung, June 2006</i><p> </p></li><li><a href="vldb2005_p421.pdf">One-Pass Wavelet Synopses for Maximum-Error Metrics</a><br> Panagiotis Karras and Nikos Mamoulis<br> <i><a href="http://www.informatik.uni-trier.de/%7Eley/db/conf/vldb/vldb2005.html">Proc.</a> of <a href="http://www.vldb2005.org/">the 31st</a> Intl Conf. on Very Large Data Bases (<a href="http://www.vldb.org/">VLDB</a>), Trondheim, Norway, August 2005</i> </li></font> </ol></td></tr></tbody></table> <!-- </font></font><p><font face="Tahoma" size="3"><font color="#000080" face="Garamond" size="+2">Teaching</font></font></p> <table><tbody><tr><td><ol> <font face="Tahoma"> <a href="">29:623:375</a>: Computer Network Applications (Spring 2013)<br> <a href="https://www.business.rutgers.edu/phd/courses/descriptions/information-systems">26:198:641</a>: Advanced Database Systems (Fall 2012)<br> <a href="https://blackboard.newark.rutgers.edu/webapps/portal/frameset.jsp?tab_tab_group_id=_2_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_101216_1%26url%3D"> 26:198:643</a>: Information Security (Spring 2012)<br> <a href="https://blackboard.newark.rutgers.edu/webapps/portal/frameset.jsp?tab_tab_group_id=_2_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_110881_1%26url%3D"> 29:623:220</a>: Management Information Systems (Spring 2012)<br> <a href="https://blackboard.newark.rutgers.edu/webapps/portal/frameset.jsp?tab_tab_group_id=_2_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_101216_1%26url%3D"> 22:198:603</a>: Business Data Management (Fall 2011, Fall 2012, Fall 2013 Nwk, Fall 2013 NB)<br> <a href="https://blackboard.newark.rutgers.edu/webapps/portal/frameset.jsp?tab_tab_group_id=_2_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_100689_1%26url%3D"> 29:623:350</a>: Structured Programming Applications (Fall 2011, Spring 2013)<br> <a href="http://ivle7.nus.edu.sg/lms/Account/NUSBulletin/msearch_view.aspx?modeCode=CS5322&acadYear=2009/2010&semester=1"> CS5322</a>: Database Security (Spring 2010)<br> <a href="http://ivle7.nus.edu.sg/lms/Account/NUSBulletin/msearch_view.aspx?modeCode=CS2102&acadYear=2009/2010&semester=1"> CS3230</a>: Design and Analysis of Algorithms (Fall 2009)<br> <a href="http://www.comp.nus.edu.sg/~cs6234/2009/"> CS6234</a>: Advanced Algorithms (Spring 2009)<br> <a href="http://ivle7.nus.edu.sg/lms/Account/NUSBulletin/msearch_view.aspx?modeCode=CS3230&acadYear=2009/2010&semester=1"> CS2102</a>: Database Systems (Spring 2009, Fall 2009)<br> </li></font> </ol></td></tr></tbody></table> </font></font><p><font face="Tahoma" size="3"><font color="#000080" face="Garamond" size="+2">Service</font></font></p> <table><tbody><tr><td><ol> <font face="Tahoma"> Journal Referee for:<br> <a href="http://jacm.acm.org/">Journal of the ACM</a>, <a href="http://www.springer.com/computer/theoretical+computer+science/journal/453">Algorithmica</a>, <a href="http://tods.acm.org/">ACM TODS</a>, <a href="http://www.vldb.org/vldb_journal/">VLDB Journal</a>, <a href="http://link.springer.com/journal/10619">Distributed and Parallel Databases</a>, <a href="http://link.springer.com/journal/10115">Knowledge and Information Systems</a>, <a href="http://www.computer.org/portal/web/tkde/">IEEE TKDE</a>, <a href="http://www.journals.elsevier.com/information-systems/">Information Systems</a>, <a href="http://www.journals.elsevier.com/information-sciences/">Information Sciences</a>, <a href="http://www.journals.elsevier.com/data-and-knowledge-engineering/">DKE</a>, <a href="http://link.springer.com/journal/10618">Data Mining and Knowledge Discovery</a>, <a href="http://www.journals.elsevier.com/pattern-recognition-letters/">Pattern Recognition Letters</a>, <a href="http://www.journals.elsevier.com/pervasive-and-mobile-computing/">Pervasive and Mobile Computing</a>, <a href="http://www.igi-global.com/journal/international-journal-data-warehousing-mining/1085">International Journal of Data Warehousing and Mining</a>, <a href="http://jcse.kiise.org/main/default.asp">Journal of Computing Science and Engineering</a>, <a href="http://www.zju.edu.cn/jzus/">Journal of Zhejiang University</a> <br><br> Program Committee Memberships:<br> 2014: <a href="http://www.vldb.org/2014/review_board.html">VLDB</a>, <a href="http://www.edbticdt2014.gr/index.php/edbt-program-committee">EDBT (Demonstrations Track)</a>, <a href="http://delab.csd.auth.gr/caise2014/committees/program.php">CAiSE</a>, <a href="http://www.dasfaa2014.org/program_committee.html">DASFAA</a><br> 2013: <a href="http://www.sigmod.org/2013/org_sigmod_pc.shtml">SIGMOD</a>, <a href="http://www.cikm2013.org/pcmembers.php">CIKM</a>, <a href="http://icdm2013.rutgers.edu/pc">ICDM</a>, <a href="http://cci.drexel.edu/bigdata/bigdata2013/pcmembers.htm">BigData</a>, <a href="http://www.ecmlpkdd2013.org/program-committee/">ECMLPKDD</a>, <a href="http://datamining.it.uts.edu.au/conferences/pakdd2013/programc.html">PAKDD</a>, <a href="http://www.wise2013.org/Program_Committee.html">WISE</a>, <a href="http://sstd2013.dbs.ifi.lmu.de/committee.php">SSTD</a>, <a href="http://www.dexa.org/dawak2013">DaWaK</a>, <a href="http://www.dataconference.org/">DATA</a>, <a href="http://cs-conferences.acadiau.ca/ant-13/#programCommittees">ANT</a>, <a href="http://ktw.mimos.my/stake2013/">STAKE</a>, <a href="http://www.iaria.org/conferences2013/ComINTELLI13.html">INTELLI</a>, <a href="http://voyager.ce.fit.ac.jp/conf/eidwt/2013/comitees.html">EIDWT</a>, <a href="http://www.cs.cf.ac.uk/padm2013/committee.html">PADM</a>, <a href="http://si.deis.unical.it/~cuzzocrea/MEDI2013/committes.html">MEDI</a><br> 2012: <a href="http://kdd.org/kdd2012/">KDD</a>, <a href="http://www.icde12.org/">ICDE</a>, <a href="http://www.ecmlpkdd2012.net/">ECMLPKDD</a>, <a href="http://www.caise2012.univ.gda.pl/">CAiSE</a>, <a href="http://pakdd2012.pakdd.org/">PAKDD</a>, <a href="http://www.wise2012.cs.ucy.ac.cy/committee.html">WISE</a>, <a href="http://db.disi.unitn.eu/pages/WebDB2012/">WebDB</a>, <a href="http://www.dexa.org/previous/dexa2012/dawak2012.html">DaWaK</a>, <a href="http://www.ieee.org.hk/apcloudcc/TPC.html">AP-Cloud</a>, <a href="http://kdd.isti.cnr.it/pinsoda/?q=node/4#ProgramCommittee">PinSoDa</a>, <a href="http://www.iaria.org/conferences2012/INTELLI12.html">INTELLI</a>, <a href="http://www.dataconference.org/">DATA</a>, <a href="http://adma2012.njue.edu.cn/program-committee.html">ADMA</a><br> 2011: <a href="http://www.kdd.org/kdd2011/">KDD</a>, <a href="http://edbticdt2011.it.uu.se/">EDBT</a>, <a href="http://www.ecmlpkdd2011.org/">ECMLPKDD</a>, <a href="http://www.caise2011.com/">CAiSE</a>, <a href="http://pakdd2011.pakdd.org/">PAKDD</a>, <a href="http://www.wise2011.org/">WISE</a>, <a href="http://www.eswc2011.org/">ESWC</a>, <a href="http://www.dexa.org/node/42">DaWaK</a>, <a href="http://www.takilab.org/conf/cisis/2011/">CISIS</a>, <a href="http://www.mimos.my/stake2011/">STAKE</a>, <a href="http://adma2011.arnetminer.org/">ADMA</a>, <a href="http://www.ifs.tuwien.ac.at/ADBIS2011/">ADBIS</a>, <a href="http://ideas.encs.concordia.ca/ideas11/">IDEAS</a><br> 2010: <a href="http://www.vldb2010.org/">VLDB</a>, <a href="http://www.yorku.ca/cikm10/">CIKM</a>, <a href="http://www.ecmlpkdd2010.org/">ECMLPKDD</a>, <a href="http://www.icde2010.org/">ICDE</a> PhD Workshop, <a href="http://www.iiit.ac.in/conferences/pakdd2010/">PAKDD</a>, <a href="http://conference.cs.cityu.edu.hk/wise2010/">WISE</a>, <a href="http://www.cse.ust.hk/~UMMM10/">UMMM</a>, <a href="http://apsipa2010.i2r.a-star.edu.sg/v3/index.shtml">APSIPA</a>, <a href="http://www.cisis-conference.eu/conf/">CISIS</a>, <a href="http://www.adbis2010.org/">ADBIS</a>, <a href="http://semdata.org/events/2010/vldb">SemData@VLDB</a><br> 2009: <a href="http://i.cs.hku.hk/icde2009/">ICDE</a> (Demonstrations Track), <a href="http://itpe.siit.tu.ac.th/pakdd2009/">PAKDD</a><br> </font> </ol></td></table> </td></tr> </tbody> 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