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Prof. Dr. rer. nat. Rainer Gemulla

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  • Website: http://dws.informatik.uni-mannheim.de/en/people/professors/prof-dr-rainer-gemulla/
  • Publications

Publications (15)

  • Non-uniformity issues and workarounds in bounded-size sampling

    Non-uniformity issues and workarounds in bounded-size sampling.

    Lehner, W.; Gemulla, R.

    In VLDB J.753-772,2013.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Rainer Gemulla},
       title = {Non-uniformity issues and workarounds in bounded-size sampling},
       journal = {VLDB J.},
       volume = {22},
       year = {2013},
       pages = {753--772},
       url = {http://dx.doi.org/10.1007/s00778-013-0307-0}
    }

  • Memory-efficient frequent-itemset mining.

    Lehner, W.; Schlegel, B.; Gemulla, R.

    In EDBT 2011, 14th International Conference on Extending Database Technology, Uppsala, Sweden, March 21-24, 2011, Proceedings.Ailamaki, Anastasia; Amer-Yahia, Sihem; Patel, Jignesh M.; Risch, Tore; Senellart, Pierre & Stoyanovich, Julia,461-472,2011.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Benjamin Schlegel and Rainer Gemulla},
       title = {Memory-efficient frequent-itemset mining},
       booktitle = {EDBT 2011, 14th International Conference on Extending Database Technology, Uppsala, Sweden, March 21-24, 2011, Proceedings},
       year = {2011},
       isbn = {978-1-4503-0528-0},
       pages = {461--472},
       url = {http://doi.acm.org/10.1145/1951365.1951420},
       publisher = {Ailamaki, Anastasia; Amer-Yahia, Sihem; Patel, Jignesh M.; Risch, Tore; Senellart, Pierre \& Stoyanovich, Julia}
    }

  • Fast integer compression using SIMD instructions.

    Lehner, W.; Schlegel, B.; Gemulla, R.

    In Proceedings of the Sixth International Workshop on Data Management on New Hardware, DaMoN 2010, Indianapolis, IN, USA, June 7, 2010.Ailamaki, Anastasia & Boncz, Peter A.,34-40,2010.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Benjamin Schlegel and Rainer Gemulla},
       title = {Fast integer compression using SIMD instructions},
       booktitle = {Proceedings of the Sixth International Workshop on Data Management on New Hardware, DaMoN 2010, Indianapolis, IN, USA, June 7, 2010},
       year = {2010},
       isbn = {978-1-4503-0189-3},
       pages = {34--40},
       url = {http://doi.acm.org/10.1145/1869389.1869394},
       publisher = {Ailamaki, Anastasia \& Boncz, Peter A.}
    }

  • k-ary search on modern processors.

    Lehner, W.; Schlegel, B.; Gemulla, R.

    In Proceedings of the Fifth International Workshop on Data Management on New Hardware, DaMoN 2009, Providence, Rhode Island, USA, June 28, 2009.Boncz, Peter A. & Ross, Kenneth A.,52-60,2009.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Benjamin Schlegel and Rainer Gemulla},
       title = {k-ary search on modern processors},
       booktitle = {Proceedings of the Fifth International Workshop on Data Management on New Hardware, DaMoN 2009, Providence, Rhode Island, USA, June 28, 2009},
       year = {2009},
       isbn = {978-1-60558-701-1},
       pages = {52--60},
       url = {http://doi.acm.org/10.1145/1565694.1565705},
       publisher = {Boncz, Peter A. \& Ross, Kenneth A.}
    }

  • Maintaining bounded-size sample synopses of evolving datasets.

    Lehner, W.; Gemulla, R.

    In VLDB J.173-202,2008.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Rainer Gemulla},
       title = {Maintaining bounded-size sample synopses of evolving datasets},
       journal = {VLDB J.},
       volume = {17},
       year = {2008},
       pages = {173--202},
       url = {http://dx.doi.org/10.1007/s00778-007-0065-y}
    }

  • Sampling time-based sliding windows in bounded space.

    Lehner, W.; Gemulla, R.

    In Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2008, Vancouver, BC, Canada, June 10-12, 2008.Wang, Jason Tsong-Li,379-392,2008.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Rainer Gemulla},
       title = {Sampling time-based sliding windows in bounded space},
       booktitle = {Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2008, Vancouver, BC, Canada, June 10-12, 2008},
       year = {2008},
       isbn = {978-1-60558-102-6},
       pages = {379--392},
       url = {http://doi.acm.org/10.1145/1376616.1376657},
       publisher = {Wang, Jason Tsong-Li}
    }

  • Linked Bernoulli Synopses: Sampling along Foreign Keys.

    Lehner, W.; Rösch, P.; Gemulla, R.

    In Scientific and Statistical Database Management, 20th International Conference, SSDBM 2008, Hong Kong, China, July 9-11, 2008, Proceedings.Ludäscher, Bertram & Mamoulis, Nikos,2008.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Philipp R\"{o}sch and Rainer Gemulla},
       title = {Linked Bernoulli Synopses: Sampling along Foreign Keys},
       booktitle = {Scientific and Statistical Database Management, 20th International Conference, SSDBM 2008, Hong Kong, China, July 9-11, 2008, Proceedings},
       series = {Lecture Notes in Computer Science},
       volume = {5069},
       year = {2008},
       isbn = {978-3-540-69476-2},
       url = {http://dx.doi.org/10.1007/978-3-540-69497-7_4},
       publisher = {Lud\"{a}scher, Bertram \& Mamoulis, Nikos}
    }

  • Designing Random Sample Synopses with Outliers.

    Lehner, W.; Rösch, P.; Gemulla, R.

    In Proceedings of the 24th International Conference on Data Engineering, ICDE 2008, April 7-12, 2008, Cancún, México.Alonso, Gustavo; Blakeley, José A. & Chen, Arbee L. P.,1400-1402,2008.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Philipp R\"{o}sch and Rainer Gemulla},
       title = {Designing Random Sample Synopses with Outliers},
       booktitle = {Proceedings of the 24th International Conference on Data Engineering, ICDE 2008, April 7-12, 2008, Cancún, M\'{e}xico},
       year = {2008},
       isbn = {978-1-4244-1836-7},
       pages = {1400--1402},
       url = {http://dx.doi.org/10.1109/ICDE.2008.4497569},
       publisher = {Alonso, Gustavo; Blakeley, Jos\'{e} A. \& Chen, Arbee L. P.}
    }

  • Maintaining bernoulli samples over evolving multisets

    Maintaining bernoulli samples over evolving multisets.

    Lehner, W.; Gemulla, R.

    In Proceedings of the Twenty-Sixth ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems, June 11-13, 2007, Beijing, China.Libkin, Leonid,93-102,2007.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Rainer Gemulla},
       title = {Maintaining bernoulli samples over evolving multisets},
       booktitle = {Proceedings of the Twenty-Sixth ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems, June 11-13, 2007, Beijing, China},
       year = {2007},
       isbn = {978-1-59593-685-1},
       pages = {93--102},
       url = {http://doi.acm.org/10.1145/1265530.1265544},
       publisher = {Libkin, Leonid}
    }

  • Derby/S: a DBMS for sample-based query answering.

    Lehner, W.; Rösch, P.; Gemulla, R.

    In Proceedings of the ACM SIGMOD International Conference on Management of Data, Chicago, Illinois, USA, June 27-29, 2006.Chaudhuri, Surajit; Hristidis, Vagelis & Polyzotis, Neoklis,757-759,2006.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Philipp R\"{o}sch and Rainer Gemulla},
       title = {Derby/S: a DBMS for sample-based query answering},
       booktitle = {Proceedings of the ACM SIGMOD International Conference on Management of Data, Chicago, Illinois, USA, June 27-29, 2006},
       year = {2006},
       isbn = {1-59593-256-9},
       pages = {757--759},
       url = {http://doi.acm.org/10.1145/1142473.1142579},
       publisher = {Chaudhuri, Surajit; Hristidis, Vagelis \& Polyzotis, Neoklis}
    }

  • Deferred Maintenance of Disk-Based Random Samples.

    Lehner, W.; Gemulla, R.

    In Advances in Database Technology - EDBT 2006, 10th International Conference on Extending Database Technology, Munich, Germany, March 26-31, 2006, Proceedings.Ioannidis, Yannis E.; Scholl, Marc H.; Schmidt, Joachim W.; Matthes, Florian; Hatzopoulos, Michael; Böhm, Klemens; Kemper, Alfons; Grust, Torsten & Böhm, Christian,423-441,2006.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Rainer Gemulla},
       title = {Deferred Maintenance of Disk-Based Random Samples},
       booktitle = {Advances in Database Technology - EDBT 2006, 10th International Conference on Extending Database Technology, Munich, Germany, March 26-31, 2006, Proceedings},
       series = {Lecture Notes in Computer Science},
       volume = {3896},
       year = {2006},
       isbn = {3-540-32960-9},
       pages = {423--441},
       url = {http://dx.doi.org/10.1007/11687238_27},
       publisher = {Ioannidis, Yannis E.; Scholl, Marc H.; Schmidt, Joachim W.; Matthes, Florian; Hatzopoulos, Michael; B\"{o}hm, Klemens; Kemper, Alfons; Grust, Torsten \& B\"{o}hm, Christian}
    }

  • A Dip in the Reservoir: Maintaining Sample Synopses of Evolving Datasets

    A Dip in the Reservoir: Maintaining Sample Synopses of Evolving Datasets.

    Lehner, W.; Gemulla, R.

    In Proceedings of the 32nd International Conference on Very Large Data Bases, Seoul, Korea, September 12-15, 2006.Dayal, Umeshwar; Whang, Kyu-Young; Lomet, David B.; Alonso, Gustavo; Lohman, Guy M.; Kersten, Martin L.; Cha, Sang Kyun & Kim, Young-Kuk,595-606,2006.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Rainer Gemulla},
       title = {A Dip in the Reservoir: Maintaining Sample Synopses of Evolving Datasets},
       booktitle = {Proceedings of the 32nd International Conference on Very Large Data Bases, Seoul, Korea, September 12-15, 2006},
       year = {2006},
       isbn = {1-59593-385-9},
       pages = {595--606},
       url = {http://dl.acm.org/citation.cfm?id=1164179},
       publisher = {Dayal, Umeshwar; Whang, Kyu-Young; Lomet, David B.; Alonso, Gustavo; Lohman, Guy M.; Kersten, Martin L.; Cha, Sang Kyun \& Kim, Young-Kuk}
    }

  • Hierarchisches gruppenbasiertes Sampling

    Hierarchisches gruppenbasiertes Sampling.

    Lehner, W.; Berthold, H.; Gemulla, R.

    In Inform., Forsch. Entwickl.45-56,2005.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Henrike Berthold and Rainer Gemulla},
       title = {Hierarchisches gruppenbasiertes Sampling},
       journal = {Inform., Forsch. Entwickl.},
       volume = {20},
       year = {2005},
       pages = {45--56},
       url = {http://dx.doi.org/10.1007/s00450-004-0175-3}
    }

  • Hierarchical Group-Based Sampling

    Hierarchical Group-Based Sampling.

    Lehner, W.; Berthold, H.; Gemulla, R.

    In Database: Enterprise, Skills and Innovation, 22nd British National Conference on Databases, BNCOD 22, Sunderland, UK, July 5-7, 2005, Proceedings.Jackson, Mike; Nelson, David & Stirk, Sue,120-132,2005.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Henrike Berthold and Rainer Gemulla},
       title = {Hierarchical Group-Based Sampling},
       booktitle = {Database: Enterprise, Skills and Innovation, 22nd British National Conference on Databases, BNCOD 22, Sunderland, UK, July 5-7, 2005, Proceedings},
       series = {Lecture Notes in Computer Science},
       volume = {3567},
       year = {2005},
       isbn = {3-540-26973-8},
       pages = {120--132},
       url = {http://dx.doi.org/10.1007/11511854_10},
       publisher = {Jackson, Mike; Nelson, David \& Stirk, Sue}
    }

  • XML Stream Processing Quality.

    Lehner, W.; Schmidt, S.; Gemulla, R.

    In Database and XML Technologies, First International XML Database Symposium, XSym 2003, Berlin, Germany, September 8, 2003, Proceedings.Bellahsene, Zohra; Chaudhri, Akmal B.; Rahm, Erhard; Rys, Michael & Unland, Rainer,195-207,2003.

    • BibTeX

    @article{,
       author = {Wolfgang Lehner and Sven Schmidt and Rainer Gemulla},
       title = {XML Stream Processing Quality},
       booktitle = {Database and XML Technologies, First International XML Database Symposium, XSym 2003, Berlin, Germany, September 8, 2003, Proceedings},
       series = {Lecture Notes in Computer Science},
       volume = {2824},
       year = {2003},
       isbn = {3-540-20055-X},
       pages = {195--207},
       url = {http://dx.doi.org/10.1007/978-3-540-39429-7_13},
       publisher = {Bellahsene, Zohra; Chaudhri, Akmal B.; Rahm, Erhard; Rys, Michael \& Unland, Rainer}
    }

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