Sebastian Michel



I have left EPFL end of July 2009 and joined the M2CI Cluster of Excellence in Saarbruecken, Germany. Here is my new web site



Office (map): EPFL IC IIF LSIR
BC 160
Station 14
1015 Lausanne
Switzerland

Phone: +41 21 693 6791
Fax: +41 21 693 8115
Email: sebastian . michel AT epfl . ch

Office hours: by appointment





I have received my diploma (MSc equivalent) in computer science from the University of Marburg. In 2004, I have joined Gerhard Weikum's research group at the Max-Planck Institute for Informatics in Saarbruecken, Germany. My research is focused on data aggregation algorithms for large scale networks as well as on various aspects of Peer to- Peer information systems such as query routing and the creation of semantic overlay networks. I have received my PhD degree summa cum laude in July 2007. In August 2007, I have joined the Ecole Polytechnique Federale de Lausanne (EPFL) as a researcher in the Laboratoire de Systemes d'Information Repartis (LSIR) headed by Karl Aberer. I have received the Otto-Hahn Medal 2007 for my doctoral thesis. The Otto-Hahn Medal is the Max-Planck Society's award for the best dissertations of each year. I have received the GI DBIS Dissertation Award '07/'08.  
 



teaching:   Winter semester 2008/09: Distributed Information Systems (with Karl Aberer).

For a list of open student projects (semester or master projects): http://lsirwww.epfl.ch/students.htm

 
research interests:   Distributed Top-k Query Processing, Query Processing over Streams, Social Networks, Peer-to-Peer Information Management, eScience, Data Management in Sensor Networks
 
projects:   Swiss Experiment
 
professional activities:  
I have co-organized the LSDS-IR workshop 2008 co-located with CIKM 2008.
 
Program committee member:Infoscale 2007, Webdb 2008, SIGIR 2008, Infoscale 2008, LSDS-IR 2009, ISWC 2009
External reviewer:SIGMOD 2006, SIGMOD 2008, EDBT 2008, ICDE 2008, SIGMOD 2009
Reviewer: VLDB Journal,
IEEE Transactions on Knowledge and Data Engineering (TKDE),
IEEE Transactions on Parallel and Distributed Systems (TPDS),
IEEE Transactions on Multimedia (TMM)


recent talks:  
pdf
Sebastian Michel. Distributed Similarity Search in High Dimensions. M2CI - Multimodal Computing and Interaction - Cluster of Excellence Symposium (MMCI). March 2009, Saarbruecken, Germany.
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Sebastian Michel. Top-k Aggregation Queries in Large-Scale Distributed Systems. (Dissertation Award Ceremony Talk). 13. GI-Fachtagung Datenbanksysteme fuer Business, Technologie und Web BTW 2009 . Muenster, Germany.
ppt ppt
Nicolas Dawes, K. Ashwin Kumar, Sebastian Michel, Karl Aberer, Michael Lehning. Sensor Metadata Management and its Application in Collaborative Environmental Research. 4th IEEE International Conference on e-Science. e-Science 2008. Indianapolis, IN, USA.
ppt ppt
Anshul Jain, Yongluan Zhou, Karl Aberer, Sebastian Michel. Querying and Visualizing Data Cubes in Mathematica for Environmental Science Applications. 2008 Microsoft eScience Workshop . Indianapolis, IN, USA.
ppt  
Sebastian Michel. Environmental Monitoring 2.0. Panel on "Browsing the Physical World in Real-Time". Microsoft Faculty Summit 2008. Redmond, WA, USA.
pdf  
Thomas Neumann and Sebastian Michel. Smooth Interpolating Histograms with Error Guarantees. BNCOD 2008. Cardiff, UK.
ppt  
Sebastian Michel and Josiane Xavier Parreira: Peer-to-Peer Information Search. Tutorial at SBBD 2007, Joao Pessoa, Brazil.
pdf  
Sebastian Michel, Matthias Bender, Nikos Ntarmos, Peter Triantafillou, Gerhard Weikum, Christian Zimmer: Discovering and Exploiting Keyword and Attribute-Value Co-occurrences to Improve P2P Routing Indices. DELIS - Annual Meeting 2007 in Bertinoro. Scientific workshop.
pdf  
Matthias Bender, Sebastian Michel, Sebastian Parkitny, Gerhard Weikum: A Comparative Study of Pub/Sub Methods in Structured P2P Networks. DBISP2P 2006 Seoul, Korea.
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Matthias Bender, Sebastian Michel, Peter Triantafillou, Gerhard Weikum: Global Document Frequency Estimation in Peer-to-Peer Web Search. WebDB 2006 Chicago, Illinois, USA.
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Sebastian Michel, Matthias Bender, Peter Triantafillou, Gerhard Weikum: IQN Routing: Integrating Quality and Novelty for Web Search. EDBT 2006 Munich, Germany.
pdf ppt
Sebastian Michel, Peter Triantafillou, Gerhard Weikum: Minerva Infinity: An Efficient Scalable Peer-to-Peer Search Engine. Middleware 2005 Grenoble, France.
pdf ppt
Sebastian Michel, Peter Triantafillou, Gerhard Weikum: KLEE: A Framework for Distributed Top-k Query Algorithms. VLDB 2005 Trondheim, Norway.
pdf Matthias Bender, Sebastian Michel, Peter Triantafillou, Gerhard Weikum, Christian Zimmer: Improving Collection Selection with Overlap-Awareness. SIGIR 2005 Salvador, Brazil.
pdf ppt
Matthias Bender, Sebastian Michel, Gerhard Weikum, Christian Zimmer: Bookmark-driven query routing in peer-to-peer web search. SIGIR Workshop on Peer-to-Peer Information Retrieval, 2004, Sheffield.
 
publications:   my DBLP entry, my DBLife entry, MPI publication database

2009  
n/a Parisa Haghani, Sebastian Michel, Karl Aberer: Evaluating Top-k Queries over Incomplete Data Streams. 18h ACM Conference on Information and Knowledge Management (CIKM 2009), November 2-6 2009, Hong Kong, China.
Parisa Haghani, Sebastian Michel, Karl Aberer: Distributed Similarity Search in High Dimensions Using Locality Sensitive Hashing. 12th International Conference on Extending Database Technology (EDBT 2009), March 23-26 2009, Saint-Petersburg, Russia.
Oana Jurca, Sebastian Michel, Alexandre Herrmann, Karl Aberer: Processing Publish/Subscribe Queries over Distributed Data Streams. The 3rd ACM International Conference on Distributed Event-Based Systems (DEBS 2009), July 6-9, 2009, Nashville, TN, USA.
n/a Adriana Budura, Sebastian Michel, Philippe Cudre-Mauroux, Karl Aberer: Neighborhood-based Tag Prediction. 6th Annual European Semantic Web Conference (ESWC 2009), 31 May - 4 June 2009, Heraklion, Greece.
n/a Ali Salehi, Mehdi Riahi, Sebastian Michel, Karl Aberer: Knowing When to Slide - Efficient Scheduling for Sliding Window Processing. 10th International Conference on Mobile Data Management (MDM 2009), May 18-20, 2009, Taipei, Taiwan.
n/a Sebastian Michel, Ingmar Weber: Rethinking Email Message and People Search. 18th International World Wide Web Conference (Poster track), April 20-24, 2009, Madrid, Spain.
Sebastian Michel, Ali Salehi, Liqian Luo, Nicholas Dawes, Karl Aberer, Guillermo Barrenetxea, Mathias Bavay, Aman Kansal, K. Ashwin Kumar, Suman Nath, Marc Parlange, Stewart Tansley, Catharine van Ingen, Feng Zhao, Yongluan Zhou: Environmental Monitoring 2.0. (Demonstration). 25th International Conference on Data Engineering (ICDE 2009), March 29 - April 4, 2009, Shanghai, China

2008  
n/a Nicholas Dawes, K. Ashwin Kumar, Sebastian Michel, Karl Aberer, Michael Lehning: Sensor Metadata Management and its Application in Collaborative Environmental Research. 4th IEEE International Conference on e-Science (eScience 2008). Indianapolis, Indiana, USA.
Sheila Kinsella, Adriana Budura, Gleb Skobeltsyn, Sebastian Michel, John G. Breslin, Karl Aberer: From Web 1.0 to Web 2.0 and back - How did your Grandma use to tag? 10th ACM International Workshop on Web Information and Data Management (WIDM 2008), Napa Valley, California, October 30, 2008.
Parisa Haghani, Sebastian Michel, Philippe Cudre-Mauroux, Karl Aberer: LSH At Large - Distributed KNN Search in High Dimensions 11th International Workshop on Web and Databases (WebDB 2008), Vancouver, Canada, June 13, 2008.
n/a Josiane Xavier Parreira, Sebastian Michel, Gerhard Weikum: Efficiently Handling Dynamics in Distributed Link Based Authority Analysis. The Ninth International Conference on Web Information Systems Engineering (WISE 2008), Auckland, New Zealand, September 1 - 4, 2008.
n/a Thomas Neumann, Matthias Bender, Sebastian Michel, Ralf Schenkel, Peter Triantafillou, Gerhard Weikum: Optimizing Distributed Top-k Queries. The Ninth International Conference on Web Information Systems Engineering (WISE 2008), Auckland, New Zealand, September 1 - 4, 2008.
Adriana Budura, Sebastian Michel, Philippe Cudre-Mauroux, Karl Aberer: To Tag or Not to Tag - Harvesting Adjacent Metadata in Large-Scale Tagging Systems The 31st Annual International ACM SIGIR Conference (Poster Track), 20-24 July 2008, Singapore (SIGIR 2008)
Ralf Schenkel, Tom Crecelius, Mouna Kacimi, Thomas Neumann, Sebastian Michel, Josiane Xavier Parreira, Gerhard Weikum: Efficient Top-k Querying over Social-Tagging Networks. The 31st Annual International ACM SIGIR Conference, 20-24 July 2008, Singapore (SIGIR 2008)
n/a Tom Crecelius, Ralf Schenkel, Mouna Kacimi, Sebastian Michel, Thomas Neumann, Josiane Xavier Parreira, Gerhard Weikum: Social Recommendations at Work. The 31st Annual International ACM SIGIR Conference (Demonstration Track), 20-24 July 2008, Singapore (SIGIR 2008)
Thomas Neumann, Sebastian Michel. Smooth Interpolating Histograms with Error Guarantees. 25th British National Conference on Databases (BNCOD08) The copyright for the paper is held by Springer Verlag; see DOI: 10.1007/978-3-540-70504-8_12
Josiane Xavier Parreira, Carlos Castillo, Debora Donato, Sebastian Michel, Gerhard Weikum:The Juxtaposed approximate PageRank method for robust PageRank approximation in a peer-to-peer web search network. The VLDB Journal, Vol. 17, Number 2 (291-313), 2008.
n/a Matthias Bender, Tom Crecelius, Mouna Kacimi, Sebastian Michel, Thomas Neumann, Josiane Xavier Parreira, Ralf Schenkel, Gerhard Weikum: Exploiting Social Relations for Query Expansion and Result Ranking. To appear in Data Engineering for Blogs, Social Media, and Web 2.0 (DEBSM), 2008, co-located with ICDE 2008, Cancun, Mexico.
n/a Sebastian Michel, Ingmar Weber: Eagle Eye (a Thunderbird Extension). 17th International World Wide Web Conference (WWW 2008) (Developers Track), 2008, Beijing, China. Check out our homepage at sourceforge.net or our add-ons page at mozilla.org.


2007  
pdf  Matthias Bender, Tom Crecelius, Mouna Kacimi, Sebastian Michel, Josiane Xavier Parreira, Gerhard Weikum: Peer-to-Peer Information Search: Semantic, Social, or Spiritual?. Data Engineering Bulletin, vol. 30, iss. 2, pp. 51-60, 2007.
Matthias Bender, Sebastian Michel, Peter Triantafillou,Gerhard Weikum: Design Alternatives for Large-Scale Web Search: Alexander was Great, Aeneas a Pioneer, and Anakin has the Force. Workshop on Large scale Distributed Systems for Information Retrieval. Collocated with SIGIR 2007. Amsterdam, Netherlands.
n/a Josiane Xavier Parreira, Sebastian Michel, Matthias Bender,Gerhard Weikum: P2P Authority Analysis for Social Communities (Demo Paper). To appear in: VLDB, 2007. 33rd International Conference on Very Large Data Bases. Vienna, Austria.
Sebastian Michel, Thomas Neumann: Search for the Best but Expect the Worst - Distributed Top-k Queries over Decreasing Aggregated Scores. WEBDB, 2007. 10th International Workshop on the Web and Databases. Beijing, China.
n/a Thomas Neumann, Sebastian Michel: Algebraic Query Optimization for Distributed Top-k Queries. To appear in:Informatik - Forschung und Entwicklung.
n/a Josiane Xavier Parreira, Sebastian Michel, Gerhard Weikum: p2pDating: Real life inspired semantic overlay networks for Web search. Inf. Process. Manage. 43(3). doi:10.1016/j.ipm.2006.09.007.
n/a Thomas Neumann, Sebastian Michel: Algebraic Query Optimization for Distributed Top-k Queries. 12. GI-Fachtagung fuer Datenbanksysteme in Business, Technologie und Web (BTW), 2007. Aachen, Germany.
pdf     Matthias Bender, Tom Crecelius, Sebastian Michel, Josiane Xavier Parreira: P2P Web Search: Make It Light, Make It Fly. (Demo Paper) Third Biennal Conference on Innovative Data Systems Research (CIDR), 2007. Asilomar, California, USA.


2006  
n/a Josiane Xavier Parreira, Sebastian Michel, Matthias Bender: Size Doesn't Always Matter: Exploiting PageRank for Query Routing in Distributed IR . Workshop on Information Retrieval in Peer-to-Peer Networks (P2PIR), 2006. Arlington, VA, USA. Collocated with ACM CIKM.
pdf Sebastian Michel, Matthias Bender, Nikos Ntarmos, Peter Triantafillou, Gerhard Weikum, Christian Zimmer: Discovering and Exploiting Keyword and Attribute-Value Co-occurrences to Improve P2P Routing Indices. ACM Fifteenth Conference on Information and Knowledge Management (CIKM), 2006. Arlington, VA, USA. **Best Interdisciplinary Paper**
n/a Matthias Bender, Sebastian Michel, Peter Triantafillou, Gerhard Weikum, Christian Zimmer: "To Infinity and Beyond": P2P Web Search with Minerva and MinervaInfinity. Book Chapter, in Global Data Management, Volume 8: Emerging Communication: Studies on New Technologies and Practices in Communication. IOSPress . Editors: R. Baldoni, G. Cortese, F. Davide and A. Melpignano. ISBN: 1-58603-629-7.
n/a  Matthias Bender, Sebastian Michel, Sebastian Parkitny, Gerhard Weikum: A Comparative Study of Pub/Sub Methods in Structured P2P Networks DBISP2P, 2006. Fourth International Workshop on Databases, Information Systems and Peer-to-Peer Computing. Seoul, Korea.
pdf  Josiane Xavier Parreira, Debora Donato, Sebastian Michel, Gerhard Weikum: Efficient and Decentralized PageRank Approximation in a Peer-to-Peer Web Search Network VLDB, 2006. 32nd International Conference on Very Large Data Bases. Seoul, Korea.
pdf  Matthias Bender, Sebastian Michel, Peter Triantafillou, Gerhard Weikum: Global Document Frequency Estimation in Peer-to-Peer Web Search WEBDB, 2006. 9th International Workshop on the Web and Databases. Chicago, Illinois, USA.
pdf   Matthias Bender, Sebastian Michel, Peter Triantafillou, Gerhard Weikum, Christian Zimmer: P2P Content Search: Give the Web Back to the People IPTPS, 2006. The 5th International Workshop on Peer-to-Peer Systems. Santa Barbara, CA, USA.
pdf    Matthias Bender, Sebastian Michel, Gerhard Weikum: P2P Directories for Distributed Web Search: From Each According to His Ability, to Each According to His Needs. WIRI, 2006. The 2nd International Workshop on Challenges in Web Information Retrieval and Integration. Atlanta, Georgia, USA.
pdf   Sebastian Michel, Matthias Bender, Peter Triantafillou, Gerhard Weikum: IQN Routing; Integrating Quality and Novelty in P2P Querying and Ranking. EDBT, 2006, Munich, Germany. The copyright for the paper is held by Springer Verlag; see DOI: 10.1007/11687238_12
pdf    Thomas Neumann, Matthias Bender, Sebastian Michel, Gerhard Weikum: A Reproducible Benchmark for P2P Retrieval EXPDB, 2006. First International Workshop on Performance and Evaluation of Data Management Systems Motivation. Collocated with ACM SIGMOD '06. Chicago, Illinois, USA.
 
2005  
pdf   Josiane Xavier Parreira, Sebastian Michel, Gerhard Weikum: p2pDating: Real Life Inspired Semantic Overlay Networks for Web Search. SIGIR workshop on Heterogeneous and Distributed Information Retrieval, 2005, Salvador, Brazil.
pdf   Sebastian Michel, Peter Triantafillou, Gerhard Weikum: MINERVA Infinity: A Scalable Efficient Peer-to-Peer Search Engine. ACM/IFIP/USENIX 6th International Middleware Conference Grenoble, France. The copyright for the paper is held by Springer Verlag; see DOI: 10.1007/11587552_4
pdf   Sebastian Michel, Peter Triantafillou, Gerhard Weikum: KLEE: A Framework for Distributed Top-k Query Algorithms. VLDB 2005 Trondheim, Norway.
pdf   Odysseas Papapetrou, Sebastian Michel, Matthias Bender, Gerhard Weikum: On the Usage of Global Document Occurrences in Peer-to-Peer. International Conference on Cooperative Information Systems, 2005. Agia Napa, Cyprus. The copyright for the paper is held by Springer Verlag; see DOI 10.1007/11575771_21
pdf   Matthias Bender, Sebastian Michel, Peter Triantafillou, Gerhard Weikum, Christian Zimmer: MINERVA: Collaborative P2P Search. Demo. VLDB 2005 Trondheim, Norway.
pdf   Matthias Bender, Sebastian Michel, Peter Triantafillou, Gerhard Weikum, Christian Zimmer: Improving Collection Selection with Overlap-Awareness. SIGIR 2005 Salvador, Brazil.
n/a   Sebastian Michel, Peter Triantafillou, Gerhard Weikum: Approximate Top-k Query Algorithms over Widely Distributed Data Sources 4th Hellenic Data Management Symposium (HDMS), 2005, Athens, Greece.
pdf   Matthias Bender, Sebastian Michel, Gerhard Weikum, Christian Zimmer: Database Selection in the Context of P2P Web Search. BTW 2005 Karlsruhe, Germany.
pdf   Matthias Bender, Sebastian Michel, Gerhard Weikum, Christian Zimmer: Das Minerva-Projekt: Datenbankselektion für Peer-to-Peer Websuche. Informatik in Forschung und Entwicklung (IFE) 2005. The copyright for the paper is held by Springer Verlag; see DOI: 10.1007/s00450-005-0205-9
n/a  Sergey Chernov, Pavel Serdyukov, Matthias Bender, Sebastian Michel, Gerhard Weikum, Christian Zimmer: Database Selection and Result Merging in P2P Web Search. Third International Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P 2005), Trondheim, Norway.
pdf   Matthias Bender, Sebastian Michel, Gerhard Weikum, Christian Zimmer: The MINERVA Project: Towards Collaborative Search in Digital Libraries Using Peer-to-Peer Technology. To appear in: Peer-to-Peer, Grid, and Service-Orientation in Digital Library Architectures, Post-Proceedings of the Sixth Thematic Workshop of the EU Network of Excellence DELOS, Selected, Revised Papers. The copyright for the paper is held by Springer Verlag; seeDOI: 10.1007/11549819_6
pdf   Matthias Bender, Sebastian Michel, Gerhard Weikum, Christian Zimmer: Challenges of Distributed Search Across Digital Libraries. 8th International Workshop of the DELOS Network of Excellence on Digital Libraries on Future Digital Library Management Systems, Schloss Dagstuhl, Germany.
 
2004  
n/a  Matthias Bender, Sebastian Michel, Christian Zimmer, Gerhard Weikum: Towards Collaborative Search in Digital Libraries Using Peer-to-Peer Technology. DELOS Workshop: Digital Library Architectures 2004.
pdf   Matthias Bender, Sebastian Michel, Gerhard Weikum, Christian Zimmer: Bookmark-driven query routing in peer-to-peer web search. Proceedings of the SIGIR Workshop on Peer-to-Peer Information Retrieval 2004. Sheffield, UK.
 
 
                            
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