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MPI-INF D5 Publications, generated: 2:13, 26 September 2017

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Your search returned the following 120 documents:

  1. Luis Galárraga, Katja Hose, and Ralf Schenkel
    Partout: A Distributed Engine for Efficient RDF Processing
    In: 23rd International World Wide Web Conference, Seoul, Korea, 2014
  2. Ralf Schenkel
    Semistructured Data Search Evaluation
    In: PROMISE Winter School 2013: Bridging between Information Retrieval and Databases, 2014

  3. Steffen Metzger, Katja Hose, and Ralf Schenkel
    Colledge - a vision of collaborative knowledge networks
    In: 2nd International Workshop on Semantic Search over the Web (SSW 2012), Istanbul, Turkey, 2013. Note: This is the authors' version of the work. It is posted here for your personal use. Not to be redistributed by you. The definitive version was published by ACM and the sole license for redistribution lies with ACM, notwithstanding this author copy. http://dx.doi.org/10.1145/2494068.2494069.
    [PDF: Download: ATTCGMG1.pdf]
  4. Patrice Bellot, Antoine Doucet, Shlomo Geva, Sairam Gurajada, Jaap Kamps, Gabriella Kazai, Marijn Koolen, Arunav Mishra, Veronique Moriceau, Josiane Mothe, Michael Preminger, Eric SanJuan, Ralf Schenkel, Xavier Tannier, Martin Theobald, Matthew Trappett, and Qiuyue Wang
    Overview of INEX 2013
    In: CLEF Lab Reports, Valencia, Spain, 2013
  5. Sairam Gurajada, Jaap Kamps, Arunav Mishra, Ralf Schenkel, Martin Theobald, and Qiuyue Wang
    Overview of the INEX 2013 Linked Data Track
    In: CLEF (Online Working Notes/Labs/Workshop), Valencia, Spain, 2013
    [PDF: Download: clef2013labs_submission_77.pdf]
  6. Steffen Metzger, Ralf Schenkel, and Marcin Sydow
    QBEES: Query by Entity Examples
    In: 22nd ACM International Conference on Information and Knowledge Management (CIKM 2013), San Francisco, USA, 2013

  7. Patrice Bellot, Antoine Doucet, Shlomo Geva, Sairam Gurajada, Jaap Kamps, Gabriella Kazai, Marijn Koolen, Arunav Mishra, Véronique Moriceau, Josiane Mothe, Michael Preminger, Eric SanJuan, Ralf Schenkel, Xavier Tannier, Martin Theobald, Matthew Trappett, Andrew Trotman, Mark Sanderson, Falk Scholer, and Qiuyue Wang
    Report on INEX 2013
    SIGIR Forum 47 (2): 21-32, 2013
  8. Marcin Sydow, Mariusz Pikuła, and Ralf Schenkel
    The notion of diversity in graphical entity summarisation on semantic knowledge graphs
    Intelligent Information Systems 41 (2): 109-149, 2013
  9. Katja Hose and Ralf Schenkel
    WARP: Workload-Aware Replication and Partitioning for RDF
    In: 4th International Workshop on Data Engineering meets Semantic Web (DESWeb 2013), Brisbane, Australia, 2013

  10. Andreas Harth, Katja Hose, and Ralf Schenkel
    Database Techniques for Linked Data Management
    In: SIGMOD 2012 : Proceedings of the International Conference on Management of Data, Scottsdale, USA, 2012, 597-600
    [PDF: Download: mod508t-harth.pdf]
  11. Andreas Broschart and Ralf Schenkel
    High-Performance Processing of Text Queries with Tunable Pruned Term and Term Pair Indexes
    Transactions on Information Systems 30 (1): 5:1-5:32, 2012
  12. Avishek Anand, Srikanta Bedathur, Klaus Berberich, and Ralf Schenkel
    Index Maintenance for Time-Travel Text Search
    In: SIGIR'12 : The Proceedings of the International ACM SIGIR Conference on Research & Development in Information Retrieval, Portland, Oregon, 2012, 235-244
    [PDF: Download: sigirfp342-anand.pdf]
  13. René Jäkel, Steffen Metzger, Jason Milad Daivandy, Katja Hose, Dennis Hünich, Ralf Schenkel, and Bernd Schuller
    Interactive Information Extraction based on Distributed Data Management for German Grid Projects
    In: EGI Community Forum 2012 / EMI Second Technical Conference (EGICF12-EMITC2), Munich, Germany, 2012, 1-10
  14. Christian Pölitz and Ralf Schenkel
    Live Clickstream Mining
    In: Workshop on Knowledge Discovery, Data Mining and Machine Learning (KDML) at LWA 2012, Dortmund, 2012
  15. Luis Galárraga, Katja Hose, and Ralf Schenkel
    Partout: A Distributed Engine for Efficient RDF Processing
    arXiv abs/1212.5636: 1-12, 2012
  16. Tom Crecelius and Ralf Schenkel
    Pay-as-you-go Maintenance of Precomputed Nearest Neighbors in Large Graphs
    In: CIKM'12 : The Proceedings of the 21st ACM International Conference on Information and Knowledge Management, Maui, USA, 2012, 952-961
    [PDF: Download: fp118-crecelius.pdf]
  17. Christian Pölitz and Ralf Schenkel
    Ranking under Tight Budgets
    In: Proceedings Twenty-Third International Workshop on Database and Expert Systems Applications (DEXA 2012), Vienna, Austria, 2012, 161-165
    [PDF: Download: bare_conf.pdf]
  18. Besnik Fetahu and Ralf Schenkel
    Retrieval Evaluation on Focused Tasks
    In: Proceeding of the 35th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2012), Portland, Oregon, 2012, 1135-1136
  19. Christian Pölitz and Ralf Schenkel
    Robust Ranking Models Using Noisy Feedback
    In: Workshop "Information Retrieval Over Query Sessions" (SIR 2012) at ECIR 2012, Barcelona, Spain, 2012, 1-6
    [PDF: Download: main.pdf]
  20. Krisztian Balog, David Carmel, Arjen P. de Vries, Daniel M. Herzig, Peter Mika, Haggai Roitman, Ralf Schenkel, Pavel Serdyukov, and Duc Thanh Tran
    The first joint international workshop on entity-oriented and semantic search (JIWES)
    ACM SIGIR Forum 46 (2): 87-94, 2012
  21. Katja Hose and Ralf Schenkel
    Towards Benefit-Based RDF Source Selection for SPARQL Queries
    In: SWIM '12: Proceedings of the 4th International Workshop on Semantic Web Information Management, Scottsdale, AZ, 2012, 2:1-2:8
    [PDF: Download: p2-hose.pdf]
  22. Steffen Metzger, Michael Stoll, Katja Hose, and Ralf Schenkel
    LUKe and MIKe: Learning from User Knowledge and Managing Interactive Knowledge Extraction
    In: CIKM'12 : The Proceedings of the 21st ACM International Conference on Information and Knowledge Management, Maui, USA, 2012, 2671-2673
    [PDF: Download: de0434-metzger.pdf]
  23. Andreas Broschart and Ralf Schenkel
    A Novel Hybrid Index Structure for Efficient Text Retrieval
    In: SIGIR'11 : Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, Beijing, China, 2011, 1175-1176
  24. Hassan Issa, Katja Hose, Steffen Metzger, and Ralf Schenkel
    Advances Towards Semantic Plagiarism Detection
    In: LWA 2011 : Technical Report ; Report of the symposium "Lernen, Wissen, Adaptivität 2011" of the GI special interest groups KDML, IR and WM, Magdeburg, Germany, 2011, 211-214
  25. Katja Hose, Ralf Schenkel, Martin Theobald, and Gerhard Weikum
    Database foundations for scalable RDF processing
    In: Reasoning Web : Semantic Technologies for the Web of Data ; 7th International Summer School 2011, Galway, Ireland, 2011, 202-249
  26. Andreas Schwarte, Peter Haase, Katja Hose, Ralf Schenkel, and Michael Schmidt
    FedX: A Federation Layer for Distributed Query Processing on Linked Open Data
    In: The Semanic Web: Research and Applications : 8th Extended Semantic Web Conference, ESWC 2011, Heraklion, Greece, 2011, 481-486
  27. Andreas Schwarte, Peter Haase, Katja Hose, Ralf Schenkel, and Michael Schmidt
    FedX: Optimization Techniques for Federated Query Processing on Linked Data
    In: The Semantic Web - ISWC 2011 : 10th International Semantic Web Conference, Bonn, Germany, 2011, 601-616
  28. Michael Stoll, Katja Hose, Steffen Metzger, and Ralf Schenkel
    Interaktive Wissensextraktion und Wissenssuche
    In: LWA 2011 : Technical Report ; Report of the symposium "Lernen, Wissen, Adaptivität 2011" of the GI special interest groups KDML, IR and WM, Magdeburg, 2011, 205-206
  29. Christian Pölitz and Ralf Schenkel
    Learning to Rank under Tight Budget Constraints
    In: 34th ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2011), Beijing, China, 2011, 1173-1174
  30. Andreas Broschart and Ralf Schenkel
    MMCI at the TREC 2010 Web Track
    In: The Nineteenth Text Retrieval Conference Proceedings (TREC 2010), Gaithersburg, Maryland, 2011, 1-3
  31. Kaap Kamps, Jussi Karlgren, and Ralf Schenkel
    Report on the Third Workshop on Exploiting Semantic Annotations in Information Retrieval (ESAIR)
    SIGIR Forum 45 (1): 33-41, 2011
  32. D. Alexander, Paavo Arvola, Thomas Beckers, P. Bellot, Timothy Chappell, Christopher M. de Vries, Antoine Doucet, Norbert Fuhr, Shlomo Geva, Jaap Kamps, Gabriella Kazai, Marjin Koolen, Sangheeta Kutty, Monica Landoni, Veronique Moriceau, Richi Nayak, Ragnar Nordlie, Nils Pharo, Eric SanJuan, Ralf Schenkel, A. Tagarelli, Xavier Tannier, James A. Thom, Andrew Trotman, J. Vainio, Q. Wang, and C. Wu
    Report on INEX 2010
    SIGIR Forum 45 (1): 2-17, 2011
  33. Steffen Metzger, Shady Elbassuoni, Katja Hose, and Ralf Schenkel
    S3K: Seeking Statement-Supporting top-K Witnesses
    In: CIKM'11 : Proceedings of the 2011 ACM International Conference on Information and Knowledge Management, Glasgow, UK, 2011, 37-46
  34. Haggai Roitman, Ralf Schenkel, and Marko Grobelnik
    Search and mining entity-relationship data
    In: CIKM'11 : Proceedings of the 2011 ACM International Conference on Information and Knowledge Management, Glasgow, UK, 2011, 2639-2640
  35. Katja Hose, Steffen Metzger, and Ralf Schenkel
    Sharing Knowledge between Independent Grid Communities
    In: 6th International Workshop on Applications of Semantic Technologies (AST 2011), Berlin, Germany, 2011, 1-6
  36. Avishek Anand, Srikanta Bedathur, Klaus Berberich, and Ralf Schenkel
    Temporal Index Sharding for Space-Time Efficiency in Archive Search
    In: SIGIR'11 : Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, Beijing, China, 2011, 545-554
  37. Gerhard Weikum, Srikanta Bedathur, and Ralf Schenkel
    Temporal Knowledge for Timely Intelligence
    In: Enabling Real-Time Business Intelligence : 4th International Workshop, BIRTE 2010, Singapore, 2011, 1-6
  38. Marcin Sydow, Mariusz Pikula, and Ralf Schenkel
    To Diversify or not to Diversify Entity Summaries on RDF Knowledge Graphs?
    In: Foundations of Intelligent Systems : 19th International Symposium, ISMIS 2011, Warsaw, Poland, 2011, 490-500
  39. Omar Alonso, Ralf Schenkel, and Martin Theobald
    Crowdsourcing Assessments for XML Ranked Retrieval
    In: Advances in Information Retrieval : 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, 2010, 602-606
  40. Marcin Sydow, Mariusz Pikula, and Ralf Schenkel
    DIVERSUM: Towards Diversified Summarisation of Entities in Knowledge Graphs
    In: 2010 IEEE 26th International Conference on Data Engineering Workshops (ICDEW), Long Beach, CA, USA, 2010, 221-226
  41. Avishek Anand, Srikanta Bedathur, Klaus Berberich, and Ralf Schenkel
    Efficient Temporal Keyword Queries over Versioned Text
    In: Proceedings of the 19th ACM Conference on Information and Knowledge Management (CIKM 2010), Toronto, Canada, 2010, 699-708
  42. Marcin Sydow, Mariusz Pikula, Ralf Schenkel, and Adam Siemion
    Entity Summarisation with Limited Edge Budget on Knowledge Graphs
    In: Proceedings of the 2010 International Multiconference on Computer Science and Information Technology (IMCSIT 2010), Wisla, Poland, 2010, 513-516
  43. Andreas Broschart, Klaus Berberich, and Ralf Schenkel
    Evaluating the Potential of Explicit Phrases for Retrieval Quality
    In: Advances in Information Retrieval : 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, 2010, 623-626
  44. Andreas Broschart and Ralf Schenkel
    Index Tuning for Efficient Proximity-Enhanced Query Processing
    In: Focused Retrieval and Evaluation : 8th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2009, Brisbane, Australia, 2010, 213-217
  45. Paavo Arvola, Shlomo Geva, Jaap Kamps, Ralf Schenkel, Andrew Trotman, and Johanna Vainio
    Overview of the INEX 2010 Ad Hoc Track
    In: Preproceedings of the INEX 2010 Workshop, Vught, The Netherlands, 2010
  46. Aleksandar Stupar, Sebastian Michel, and Ralf Schenkel
    RankReduce - processing K-Nearest Neighbor Queries on Top of MapReduce
    In: LSDS-IR 2010 : Proceedings of the 8th Workshop on Large-Scale Distributed Systems for Information Retrieval, Geneva, Switzerland, 2010, 13-18
  47. Andreas Broschart and Ralf Schenkel
    Real-time text queries with tunable term pair indexes
    Max-Planck-Institut Informatik, Saarbruecken, MPI-I-2010-5-006
  48. Thomas Beckers, Patrice Bellot, Gianluca Demartini, Ludovic Denoyer, Christopher M. de Vries, Antoine Doucet, Khairun Nisa Fachry, Norbert Fuhr, Patrick Gallinari, Shlomo Geva, Wei-Che Huang, Tereza Iofciu, Jaap Kamps, Gabriella Kazai, Marijn Koolen, Sangeetha Kutty, Monica Landoni, Miro Lehtonen, Véronique Moriceau, Richi Nayak, Ragnar Nordlie, Nils Pharo, Eric SanJuan, Ralf Schenkel, Xavier Tannier, Martin Theobald, James A. Thom, Andrew Trotman, and Arjen P. de Vries
    Report on INEX 2009
    SIGIR Forum 44 (1): 38-57, 2010
  49. Shady Elbassuoni, Katja Hose, Steffen Metzger, and Ralf Schenkel
    ROXXI: Reviving witness dOcuments to eXplore eXtracted Information
    In: Proceedings of the 36th International Conference on Very Large Data Bases, Singapore, 2010, 1589-1592
  50. Shady Elbassuoni, Maya Ramanath, Ralf Schenkel, and Gerhard Weikum
    Searching RDF Graphs with SPARQL and Keywords
    IEEE Data Engineering Bulletin 33 (1): 16-24, 2010
  51. Ralf Schenkel
    Temporal Shingling for Version Identification in Web Archives
    In: Advances in Information Retrieval : 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, 2010, 508-519
  52. Hady W. Lauw, Ralf Schenkel, Fabian Suchanek, Martin Theobald, and Gerhard Weikum
    Harvesting Knowledge from Web Data and Text
    In: 19th International Conference on Information and Knowledge Management (CIKM 2010) : CIKM'10 Tutorials, Toronto, Canada, 2010, 1-6
    [PDF: Download: cikm10-tutorial.pdf]
  53. Martin Theobald, Ablimit Aji, and Ralf Schenkel
    TopX 2.0 at the INEX 2009 Ad-Hoc and Efficiency Tracks
    In: Focused Retrieval and Evaluation : 8th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2009, Brisbane, Australia, 2010, 218-228
    [PDF: Download: topx-inex2009.pdf]
  54. Michal Shmueli-Scheuer, Chen Li, Yosi Mass, Haggai Roitman, Ralf Schenkel, and Gerhard Weikum
    Best Effort Top-K Query Processing Under Budgetary Constraints
    In: 25th IEEE International Conference on Data Engineering, ICDE 2009 : proceedings, Shanghai, China, 2009, 928-939
  55. Thomas Neumann, Matthias Bender, Sebastian Michel, Ralf Schenkel, Peter Triantafillou, and Gerhard Weikum
    Distributed Top-k aggregation queries at large
    Distributed and Parallel Databases 26 (1): 3-27, 2009. Note: accepted June 4, 2009; published online June 18, 2009
  56. Tom Crecelius and Ralf Schenkel
    Evaluating Network-Aware Retrieval in Social Networks
    In: SIGIR 2009 Workshop on the Future of IR Evaluation, Boston, USA, 2009, 17-18
  57. Andreas Broschart and Ralf Schenkel
    Index Tuning for Efficient Proximity-Enhanced Query Processing
    In: INEX 2009 Workshop Pre-proceedings, Woodlands of Marburg, Australia, 2009, 188-191
  58. Ralf Schenkel and Martin Theobald
    Integrated DB&IR Semi-Structured Text Retrieval
    In: Encyclopedia of Database Systems, 2009, 1543-1546
  59. Shady Elbassuoni, Maya Ramanath, Ralf Schenkel, Marcin Sydow, and Gerhard Weikum
    Language-Model-Based Ranking for Queries on RDF-Graphs
    In: CIKM 2009 : the 18th ACM Conference on Information and Knowledge Management, Hongkong, China, 2009, 977-986
  60. Ralf Schenkel
    Locking Granularity and Lock Types
    In: Encyclopedia of Database Systems, 2009, 1641-1643
  61. Ralf Schenkel and Martin Theobald
    Overview of the INEX 2009 Efficiency Track
    In: Focused Retrieval and Evaluation: 8th International Workshop of the Initiative for the Evaluation of XML Retrieval (INEX 2009), Woodlands of Marburg, Australia, 2009, 200-212
  62. Shlomo Geva, Jaap Kamps, Miro Lehtonen, Ralf Schenkel, James A. Thom, and Andrew Trotman
    Overview of the INEX 2009 Ad Hoc Track
    In: INEX 2009 Workshop Pre-proceedings, Woodlands of Marburg, Australia, 2009, 16-50
  63. Amélie Marian, Ralf Schenkel, and Martin Theobald
    Ranked XML Processing
    In: Encyclopedia of Database Systems, 2009, 2325-2332
  64. Gianluca Demartini, Ludovic Denoyer, Antoine Doucet, Khairun Nisa Fachry, Patrick Gallinari, Shlomo Geva, Wei-Che Huang, Tereza Iofciu, Jaap Kamps, Gabriella Kazai, Marijn Koolen, Monica Landoni, Ragnar Nordlie, Nils Pharo, Ralf Schenkel, Martin Theobald, Andrew Trotman, Arjen P. de Vries, Alan Woodley, and Jianhan Zhu
    Report on INEX 2008
    SIGIR Forum 43 (1): 17-36, 2009
  65. Avishek Anand, Srikanta Bedathur, Klaus Berberich, Ralf Schenkel, and Christos Tryfonopoulos
    EverLast: A Distributed Architecture for Preserving the Web
    In: JCDL'09 : proceedings of the 2009 ACM/IEEE Joint Conference on Digital Libraries, Austin, Texas, 2009, 331-340
  66. Ralf Schenkel, Tom Crecelius, Mouna Kacimi, Sebastian Michel, Thomas Neumann, Josiane Xavier Parreira, and Gerhard Weikum
    Efficient Top-k Querying over Social-Tagging Networks
    In: Proceedings of the 31st Annual International ACM SIGIR Conference on Research & Development on Information Retrieval (SIGIR 2008), Singapore, Singapore, 2008, 523-530

  67. Andreas Broschart and Ralf Schenkel
    Effiziente Textsuche mit Positionsinformation
    In: 20. Workshop über Grundlagen von Datenbanken, Apolda, Germany, 2008, 101-105
  68. Matthias Bender, Tom Crecelius, Mouna Kacimi, Sebastian Michel, Thomas Neumann, Josiane Xavier Parreira, Ralf Schenkel, and Gerhard Weikum
    Exploiting Social Relations for Query Expansion and Result Ranking
    In: Data Engineering for Blogs, Social Media, and Web 2.0, ICDE 2008 Workshops, Cancun, Mexico, 2008, 501-506

  69. Hanglin Pan, Ralf Schenkel, and Gerhard Weikum
    Fine-Grained Relevance Feedback for XML Retrieval (Demo)
    In: Proceedings of the 31st Annual International ACM SIGIR Conference on Research & Development on Information Retrieval (SIGIR 2008), Singapore, Singapore, 2008, 887-887

  70. Tom Crecelius, Mouna Kacimi, Sebastian Michel, Thomas Neumann, Josiane Xavier Parreira, Ralf Schenkel, and Gerhard Weikum
    Making SENSE: Socially ENhanced Search and Exploration
    In: Proceedings of the 34th International Conference on Very Large Data Bases (VLDB 2008), Auckland, New Zealand, 2008, 1480-1483
  71. Thomas Neumann, Matthias Bender, Sebastian Michel, Ralf Schenkel, Peter Triantafillou, and Gerhard Weikum
    Optimizing Distributed Top-k Queries
    In: Proceedings of the 9th International Conference on Web Information Systems (WISE 2008), Auckland, New Zealand, 2008, 337-349
  72. Andreas Broschart, Ralf Schenkel, and Martin Theobald
    Proximity-Aware Scoring for XML Retrieval
    In: Advances in Focused Retrieval: 7th International Workshop of the Initiative for the Evaluation of XML Retrieval (INEX 2008), Schloss Dagstuhl, Germany, 2008, 46-49
  73. Andreas Broschart and Ralf Schenkel
    Proximity-Aware Scoring for XML Retrieval
    In: Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development on Information Retrieval (SIGIR 2008), Singapore, Republic of Singapore, 2008, 845-846
  74. Tom Crecelius, Mouna Kacimi, Sebastian Michel, Thomas Neumann, Josiane Xavier Parreira, Ralf Schenkel, and Gerhard Weikum
    Social Recommenations At Work (Demo)
    In: Proceedings of the 31st Annual International ACM SIGIR Conference on Research & Development on Information Retrieval (SIGIR 2008), Singapore, Singapore, 2008, 884-884

  75. Ralf Schenkel, Tom Crecelius, Mouna Kacimi, Thomas Neumann, Josiane Xavier Parreira, Marc Spaniol, and Gerhard Weikum
    Social Wisdom for Search and Recommendation
    IEEE Data Engineering Bulletin 31 (2): 40-49, 2008

  76. Ralf Schenkel, Tom Crecelius, Mouna Kacimi, Thomas Neumann, Josiane Xavier Parreira, Marc Spaniol, and Gerhard Weikum
    Social Wisdom for Search and Recommendation
    IEEE Data(base) Engineering Bulletin 31 (2): 40-49, 2008

  77. Martin Theobald and Ralf Schenkel
    Overview of the INEX 2008 Efficiency Track
    In: Advances in Focused Retrieval: 7th International Workshop of the Initiative for the Evaluation of XML Retrieval (INEX 2008), Schloss Dagstuhl, Germany, 2008, 179-191
  78. Martin Theobald, Mohammed AbuJarour, and Ralf Schenkel
    TopX 2.0 at the INEX 2008 Efficiency Track
    In: Advances in Focused Retrieval: 7th International Workshop of the Initiative for the Evaluation of XML Retrieval (INEX 2008), Schloss Dagstuhl, Germany, 2008, 224-236
  79. Martin Theobald, Holger Bast, Debapriyo Majumdar, Ralf Schenkel, and Gerhard Weikum
    TopX: Efficient and Versatile Top-k Query Processing for Semistructured Data
    The VLDB Journal 17 (2): 81-115, 2008

  80. Ralf Schenkel, Andreas Broschart, Seungwon Hwang, Martin Theobald, and Gerhard Weikum
    Efficient Text Proximity Search
    In: 14th String Processing and Information Retrieval Symposium (SPIRE 2007), Santiago, Chile, 2007, 287-299
    [PDF: Download: schenkelBHTW-SPIRE07.pdf]
  81. Martin Theobald, Ralf Schenkel, and Gerhard Weikum
    The TopX DB&IR Engine (Demo)
    In: 2007 ACM SIGMOD International Conference on Management of Data, Beijing, 2007, 1141-1143
    [PDF: Download: sigmod017d-Theobald.pdf]
  82. Andreas Broschart, Ralf Schenkel, Martin Theobald, and Gerhard Weikum
    TopX @ INEX 2007
    In: Advances in Focused Retrieval: 6th International Workshop of the Initiative for the Evaluation of XML Retrieval (INEX 2007), Schloss Dagstuhl, Germany, 2007, 49-56
  83. Martin Theobald, Andreas Broschart, Ralf Schenkel, Silvana Solomon, and Gerhard Weikum
    TopX - Adhoc Track and Feedback Task
    In: Comparative Evaluation of XML Information Retrieval Systems, 5th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2006, Schloss Dagstuhl, Germany, 2007, 233-242
    [PDF: Download: theobaldBRSW07.pdf]
  84. Martin Theobald, Ralf Schenkel, and Gerhard Weikum
    TopX - Efficient and Versatile Top-k Query Processing for Text, Semistructured, and Structured Data
    In: 12. GI-Fachtagung Datenbanksysteme in Business, Technologie und Web (BTW 2007), Aachen, Germany, 2007, 475-485
    [PDF: Download: btw07_topx.pdf]
  85. Ralf Schenkel, Fabian Suchanek, and Gjergji Kasneci
    YAWN: A Semantically Annotated Wikipedia XML Corpus
    In: 12. GI-Fachtagung für Datenbanksysteme in Business, Technologie und Web (BTW 2007), Aachen, Germany, 2007, 277-291
    [PDF: Download: BTW2007_WikiXML.pdf]
  86. Ralf Schenkel and Martin Theobald
    Feedback-Driven Structural Query Expansion for Ranked Retrieval of XML Data
    In: Advances in Database Technology - EDBT 2006: 10th International Conference on Extending Database Technology, Munich, Germany, 2006, 331-348. Note: Acceptance ratio 1:6
    [PDF: Download: SchenkelT06.pdf]
  87. Ralf Schenkel and Martin Theobald
    Relevance Feedback for Structural Query Expansion
    In: Advances in XML Information Retrieval and Evaluation, 4th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2005, Dagstuhl Castle, Germany, 2006, 344-357
    [PDF: Download: SchenkelT06-INEX.pdf]
  88. Ralf Schenkel and Martin Theobald
    Structural Feedback for Keyword-Based XML Retrieval
    In: Advances in Information Retrieval, 28th European Conference on IR Research, ECIR 2006, London, UK, 2006, 326-337
    [PDF: Download: SchenkelT06-b.pdf]
  89. Martin Theobald, Ralf Schenkel, and Gerhard Weikum
    TopX & XXL at INEX 2005 (Ad-Hoc Track)
    In: Advances in XML Information Retrieval and Evaluation, 4th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2005, Dagstuhl Castle, Germany, 2006, 282-295
    [PDF: Download: SchenkelTW06-INEX.pdf]
  90. Jens Graupmann and Ralf Schenkel
    GeoSphereSearch: Context-Aware Geographic Web Search
    In: 3rd Workshop on Geographic Information Retrieval, Seattle, WA, USA, 2006, 1-4
  91. Holger Bast, Debapriyo Majumdar, Ralf Schenkel, Martin Theobald, and Gerhard Weikum
    IO-Top-k at TREC 2006: Terabyte Track
    In: Proceedings of the 15th Text REtrieval Conference (TREC 2006), Gaithersburg, Maryland, 2006, 551-555
    [PDF: Download: max-planck-inst.tera.pdf]
  92. Holger Bast, Debapriyo Majumdar, Ralf Schenkel, Martin Theobald, and Gerhard Weikum
    IO-Top-k: Index-access Optimized Top-k Query Processing
    Max-Planck-Institut for Informatics, Saarbrücken, MPI-I-2006-5-002, Research Report
    [PDF: Download: iotopk_tr.pdf]
  93. Holger Bast, Debapriyo Majumdar, Ralf Schenkel, Martin Theobald, and Gerhard Weikum
    IO-Top-k: Index-access Optimized Top-k Query Processing
    In: Proceedings of the 32nd International Conference on Very Large Data Bases (VLDB 2006), Seoul, Korea, 2006, 475-486. Note: Acceptance ratio 1:7
    [PDF: Download: BastMRW.pdf]
  94. Holger Bast, Debapriyo Majumdar, Ralf Schenkel, Martin Theobald, and Gerhard Weikum
    IO-Top-k: Index-access Optimized Top-k Query Processing
    University of Paderborn, Heinz Nixdorf Institute, Paderborn, DELIS-TR-0323, Research Report
    [PDF: Download: iotopk_tr.pdf]
  95. Martin Theobald, Andreas Broschart, Ralf Schenkel, Silvana Solomon, and Gerhard Weikum
    TopX -- AdHoc Track and Feedback Task
    In: Preproceedings of the 5th International Workshop of the INitiative for the Evaluation of XML Retrieval (INEX 2006), Schloß Dagstuhl, Germany, 2006, 140-149
    [PDF: Download: TopX_INEX06.pdf]
  96. Martin Theobald, Ralf Schenkel, and Gerhard Weikum
    An Efficient and Versatile Query Engine for TopX Search
    In: Proceedings of the 31st International Conference on Very Large Data Bases (VLDB 2005), Trondheim, Norway, 2005, 625-636. Note: Acceptance ratio 1:6
    [PDF: Download: vldb2005_tsw.pdf]
  97. Jens Graupmann, Jun Cai, and Ralf Schenkel
    Automatic Query Refinement Using Mined Semantic Relations
    In: International Workshop on Challenges in Web Information Retrieval and Integration (WIRI), Tokyo, Japan, 2005, 205-213. Note: Acceptance ratio 1:4
    [PDF: Download: GraupmannCS05.pdf]
  98. Martin Theobald, Ralf Schenkel, and Gerhard Weikum
    Efficient and Self-Tuning Incremental Query Expansion for Top-k Query Processing
    In: 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2005), Salvador, Brazil, 2005, 242-249. Note: Acceptance ratio 1:5
    [PDF: Download: TheobaldSTW.pdf]
  99. Ralf Schenkel, Anja Theobald, and Gerhard Weikum
    Efficient Creation and Incremental Maintenance of the HOPI Index for Complex XML Document Collections
    In: Proceedings of the 21st International Conference on Data Engineering, ICDE 2005, Tokyo, Japan, 2005, 360-371. Note: Acceptance ratio 1:8
    [PDF: Download: SchenkelTW05.pdf]
  100. Ralf Schenkel, Anja Theobald, and Gerhard Weikum
    Semantic Similarity Search on Semistructured Data with the XXL Search Engine
    Information Retrieval 8 (4): 521-545, 2005
    [PDF: Download: SchenkelTW05a.pdf]
  101. Jens Graupmann and Ralf Schenkel
    The Light-Weight Semantic Web: Integrating Information Extraction and Information Retrieval for Heterogeneous Environments
    In: SIGIR 2005 Workshop on Heterogeneous and Distributed Information Retrieval (HDIR), Salvador, Brazil, 2005, 1-8
    [PDF: Download: GraupmannSVLDB05.pdf]
  102. Jens Graupmann, Ralf Schenkel, and Gerhard Weikum
    The SphereSearch Engine for Unified Ranked Retrieval of Heterogeneous XML and Web Documents
    In: Proceedings of the 31st International Conference on Very Large Data Bases (VLDB 2005), Trondheim, Norway, 2005, 529-540. Note: Acceptance ratio 1:6
    [PDF: Download: graupmannSW05.pdf]
  103. Kathrin Roberts, Frank Mücklich, Ralf Schenkel, and Gerhard Weikum
    An Information System for Material Microstructures
    In: 16th International Conference on Scientific and Statistical Database Management, SSDBM 2004, Santorini Island Greece, 2004, 329-332. Note: Acceptance ratio 1:2
    [PDF: Download: SSDBM04.pdf]
  104. Hanglin Pan, Anja Theobald, and Ralf Schenkel
    Query Refinement by Relevance Feedback in an XML Retrieval System (Demo)
    In: Conceptual modeling, ER 2004 : 23rd International Conference on Conceptual Modeling, Shanghai, China, 2004, 854-855. Note: Acceptance ratio 1:5
    [PDF: Download: er2004.pdf]
  105. Martin Theobald, Gerhard Weikum, and Ralf Schenkel
    Top-k Query Evaluation with Probabilistic Guarantees
    In: Proceedings 2004 VLDB Conference : The 30th International Conference on Very Large Databases (VLDB), Toronto, Canada, 2004, 648-659. Note: Acceptance ratio 1:6
    [PDF: Download: vldb04-RS17P3.pdf]
  106. Gerhard Weikum, Jens Graupmann, Ralf Schenkel, and Martin Theobald
    Towards a Statistically Semantic Web
    In: Conceptual modeling, ER 2004 : 23rd International Conference on Conceptual Modeling, Shanghai, China, 2004, 3-17
  107. Minos Garofalakis, Ioana Manolescu, Marco Mesiti, George Mihaila, Ralf Schenkel, Bhavani Thuraisingham, and Vasilis Vassalos
    What's Next in XML and Databases
    In: Current trends in database technology, EDBT 2004 Workshops : EDBT 2004 Workshops PhD, DataX, PIM, P2P&DB, and ClustWeb, Heraklion, Cyprus, Greece, 2004, 318-324
  108. Ralf Schenkel
    FliX: A Flexible Framework for Indexing Complex XML Document Collections
    In: Current trends in database technology, EDBT 2004 Workshops : EDBT 2004 Workshops PhD, DataX, PIM, P2P&DB, and ClustWeb, Heraklion, Creta, Greece, March 14, 2004, 2004, 240-249. Note: Acceptance ratio 1:3
    [PDF: Download: DataX2004.pdf]
  109. Ralf Schenkel, Anja Theobald, and Gerhard Weikum
    HOPI: An Efficient Connection Index for Complex XML Document Collections
    In: Advances in database technology, EDBT 2004 : 9th International Conference on Extending Database Technology, Heraklion, Crete, Greece, March 14-18, 2004, 2004, 237-255. Note: Acceptance ratio 1:7

  110. Ralf Schenkel, Anja Theobald, and Gerhard Weikum
    XXL @ INEX 2003
    In: Proceedings of the Second INEX Workshop, Dagstuhl, Germany, December 15-17, 2003, 2004, 59-66
    [PDF: Download: stw03.pdf]
  111. Martin Theobald, Ralf Schenkel, and Gerhard Weikum
    Classification and Focused Crawling for Semistructured Data
    In: Intelligent Search on XML Data : Applications, Languages, Models, Implementations, and Benchmarks, 2003, 145-157
  112. Martin Theobald, Ralf Schenkel, and Gerhard Weikum
    Exploiting Structure, Annotation, and Ontological Knowledge for Automatic Classification of XML Data
    In: 6th International Workshop on the Web and Databases (WebDB-03), San Diego, USA, June 12-13, 2003, 2003, 1-6. Note: Acceptance ratio 1:4
  113. Ralf Schenkel, Anja Theobald, and Gerhard Weikum
    Ontology-Enabled XML Search
    In: Intelligent Search on XML Data : Applications, Languages, Models, Implementations, and Benchmarks, 2003, 119-131
  114. Ralf Schenkel
    Transaktionen in föderierten Datenbanksystemen unter eingeschränkten Isolation Levels
    Doctoral dissertation, Universität des Saarlandes, 2001
    [PDF: Download: dissertation.pdf]
  115. Ralf Schenkel and Gerhard Weikum
    Integrating Snapshot Isolation Into Transactional Federations
    In: 5th IFCIS International Conference on Cooperative Information Systems (CoopIS 2000), Eilat, Israel, September 6-8, 2000, 2000, 90-101
    [PDF: Download: sw00.pdf]
  116. Ralf Schenkel and Gerhard Weikum
    Taming the Tiger: How to Cope with Real Database Products in Transactional Federations for Internet Applications
    In: GI-Workshop "Internet-Datenbanken", Berlin, Germany, September 19, 2000, 2000, 13-29
    [PDF: Download: informatik2000-final.pdf]
  117. Ralf Schenkel
    Konzeption und Implementierung des Kommunikationsmanagers für das Workflow-Management-System MENTOR - Integration und Synchronisation der verteilten Workflow-Engine
    Universität des Saarlandes, 1997
    [PDF: Download: diplomarbeit.pdf]
  118. Ralf Schenkel and Gerhard Weikum
    Experiences with Building a Federated Transaction Manager based on CORBA OTS
    In: Proceedings of the 2nd International Workshop of Engineering Federated Information Systems (EFIS '99), Kühlungsborn, Germany, May 5-7, 1999, 1999, 79-94
    [PS: Download: efis99_final.ps]
  119. Ralf Schenkel, Gerhard Weikum, Norbert Weißenberg, and Xuequn Wu
    Federated Transaction Management with Snapshot Isolation
    In: Proceedings of the 8th International Workshop on Foundations of Models and Languages for Data and Objects - Transactions and Database Dynamics '99, Dagstuhl Castle, Germany, September 27-30, 1999, 1999, 1-25
    [PDF: Download: tdd99.pdf]
  120. Ralf Schenkel, Gerhard Weikum, Norbert Weißenberg, and Xuequn Wu
    Federated Transaction Management with Snapshot Isolation
    In: Transactions and Database Dynamics - Proceedings of the Eight International Workshop on Foundations of Models and Languages for Data and Objects, Schloß Dagstuhl, Germany, May 5-7, 1999, 1999, 139-158