@inproceedings{jaschke2013attribute,
  abstract = {We propose an approach for supporting attribute exploration by web information retrieval, in particular by posing appropriate queries to search engines, crowd sourcing systems, and the linked open data cloud. We discuss underlying general assumptions for this to work and the degree to which these can be taken for granted.},
  author = {Jäschke, Robert and Rudolph, Sebastian},
  booktitle = {Contributions to the 11th International Conference on Formal Concept Analysis},
  editor = {Cellier, Peggy and Distel, Felix and Ganter, Bernhard},
  interhash = {000ab7b0ae3ecd1d7d6ceb39de5c11d4},
  intrahash = {45e900e280661d775d8da949baee3747},
  month = may,
  organization = {Technische Universität Dresden},
  pages = {19--34},
  title = {Attribute Exploration on the Web},
  url = {http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-113133},
  urn = {urn:nbn:de:bsz:14-qucosa-113133},
  year = 2013
}

@inproceedings{krause2008logsonomy,
  abstract = {Social bookmarking systems constitute an established
part of the Web 2.0. In such systems
users describe bookmarks by keywords
called tags. The structure behind these social
systems, called folksonomies, can be viewed
as a tripartite hypergraph of user, tag and resource
nodes. This underlying network shows
specific structural properties that explain its
growth and the possibility of serendipitous
exploration.
Today’s search engines represent the gateway
to retrieve information from the World Wide
Web. Short queries typically consisting of
two to three words describe a user’s information
need. In response to the displayed
results of the search engine, users click on
the links of the result page as they expect
the answer to be of relevance.
This clickdata can be represented as a folksonomy
in which queries are descriptions of
clicked URLs. The resulting network structure,
which we will term logsonomy is very
similar to the one of folksonomies. In order
to find out about its properties, we analyze
the topological characteristics of the tripartite
hypergraph of queries, users and bookmarks
on a large snapshot of del.icio.us and
on query logs of two large search engines.
All of the three datasets show small world
properties. The tagging behavior of users,
which is explained by preferential attachment
of the tags in social bookmark systems, is
reflected in the distribution of single query
words in search engines. We can conclude
that the clicking behaviour of search engine
users based on the displayed search results
and the tagging behaviour of social bookmarking
users is driven by similar dynamics.},
  address = {New York, NY, USA},
  author = {Krause, Beate and Jäschke, Robert and Hotho, Andreas and Stumme, Gerd},
  booktitle = {HT '08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia},
  doi = {http://doi.acm.org/10.1145/1379092.1379123},
  interhash = {6d34ea1823d95b9dbf37d4db4d125d2a},
  intrahash = {e64d14f3207766f4afc65983fa759ffe},
  isbn = {978-1-59593-985-2},
  location = {Pittsburgh, PA, USA},
  pages = {157--166},
  publisher = {ACM},
  title = {Logsonomy - Social Information Retrieval with Logdata},
  url = {http://portal.acm.org/citation.cfm?id=1379092.1379123&coll=ACM&dl=ACM&type=series&idx=SERIES399&part=series&WantType=Journals&title=Proceedings%20of%20the%20nineteenth%20ACM%20conference%20on%20Hypertext%20and%20hypermedia},
  vgwort = {17},
  year = 2008
}

@inproceedings{hotho2006information,
  author = {Hotho, Andreas and J{\"a}schke, Robert and Schmitz, Christoph and Stumme, Gerd},
  booktitle = {Proceedings of the 3rd European Semantic Web Conference},
  interhash = {882bd942131c6c303bdc9c4732287ae9},
  intrahash = {087d10ce5603cef6c6a8b443700368a2},
  pages = {411-426},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Information Retrieval in Folksonomies: Search and Ranking},
  year = 2006
}

@article{keyhere,
  abstract = {The theory of concept (or Galois) lattices provides a simple and formal approach to conceptual clustering. In this paper we present GALOIS, a system that automates and applies this theory. The algorithm utilized by GALOIS to build a concept lattice is incremental and efficient, each update being done in time at most quadratic in the number of objects in the lattice. Also, the algorithm may incorporate background information into the lattice, and through clustering, extend the scope of the theory. The application we present is concerned with information retrieval via browsing, for which we argue that concept lattices may represent major support structures. We describe a prototype user interface for browsing through the concept lattice of a document-term relation, possibly enriched with a thesaurus of terms. An experimental evaluation of the system performed on a medium-sized bibliographic database shows good retrieval performance and a significant improvement after the introduction of background knowledge.
ER  -},
  author = {Carpineto, Claudio and Romano, Giovanni},
  interhash = {719ac1badf95acafafbd1487d82ae175},
  intrahash = {a53905954aeef0a80ec7424f978bca14},
  journal = {Machine Learning},
  month = {#aug#},
  number = 2,
  pages = {95--122},
  title = {A lattice conceptual clustering system and its application to browsing retrieval},
  url = {http://dx.doi.org/10.1007/BF00058654},
  volume = 24,
  year = 1996
}

@inproceedings{becker00conceptual,
  address = {Heidelberg},
  author = {Becker, K. and Stumme, G. and Wille, R. and Wille, U. and Zickwolff, M.},
  booktitle = {Knowledge Engineering and Knowledge Management. Methods, Models, and Tools.},
  comment = {alpha},
  editor = {Dieng, R. and Corby, O.},
  interhash = {dacb08013d9496d41d4f9f39bce7ecd1},
  intrahash = {8533101d55261b955b9ca6bca2cb73fc},
  pages = {352-365},
  publisher = {Springer},
  series = {LNAI},
  title = {Conceptual Information Systems Discussed Through an {IT}-Security Tool},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2000/EKAW00.pdf},
  volume = 1937,
  year = 2000
}

@inproceedings{agarwal03semantic,
  abstract = {The paper describes a set of approaches for representing and
accessing information within a semantically structured information
portal, while offering the possibility to integrate own
information. It discusses research performed within the project
`Semantic Methods and Tools for Information Portals (SemIPort)'.
In particular, it focuses on  (1) the development of scalable
storing, processing and querying methods for semantic data, (2)
visualization and browsing of complex data inventories, (3)
personalization and agent-based interaction, and (4) the
enhancement of web mining approaches for use within a
semantics-based portal.},
  address = {Bonn},
  author = {Agarwal, Sudhir and Fankhauser, Peter and Gonzalez-Ollala, Jorge and Hartmann, Jens and Hollfelder, Silvia and Jameson, Anthony and Klink, Stefan and Lehti, Patrick and Ley, Michael and Rabbidge, Emma and Schwarzkopf, Eric and Shrestha, Nitesh and Stojanovic, Nenad and Studer, Rudi and Stumme, Gerd and Walter, Bernd},
  booktitle = {INFORMATIK 2003 -- Innovative Informatikanwendungen (Band 1)},
  comment = {alpha},
  editor = {Dittrich, K. and König, W. and Oberweis, A. and Rannenberg, K. and Wahlster, W.},
  interhash = {54f275f02db30eafdab2f178e50fd7dc},
  intrahash = {8f2983e0f20c26ff98577059343f2cd4},
  pages = {116-131},
  publisher = {Gesellschaft für Informatik},
  series = {LNI},
  title = {Semantic Methods and Tools for Information Portals},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2003/agarwal2003semantic.pdf},
  volume = 34,
  year = 2003
}

@inproceedings{gonzalez02semantic,
  address = {Helsinki},
  author = {Gonzalez-Olalla, J. and Stumme, G.},
  booktitle = {Semantic Web Mining. Proc. of the Semantic Web Mining Workshop of the 13th Europ. Conf.},
  comment = {alpha},
  editor = {Berendt, B. and Hotho, A. and Stumme, G.},
  interhash = {f66eaa20bfcd4b4b57a8ff851a4a74aa},
  intrahash = {c9fdc0e65bbd2a49ee0b1396b068a76d},
  month = {August 19,},
  pages = 90,
  title = {Semantic Methods and Tools for Information Portals - The {S}em{IP}ort Project (Project Description)},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2002/gonzalez2002semantic.pdf},
  year = 2002
}

@inproceedings{hartmann02semanticweb,
  address = {Oldenburg},
  author = {Hartmann, J. and Hotho, A. and Stumme, G.},
  booktitle = {Proc. Arbeitskreistreffen Knowledge Discovery},
  comment = {alpha},
  interhash = {c07545febc9e7b32803bf33547ec9004},
  intrahash = {a5f1a8b42409b96271bc5c671deceea9},
  month = {September},
  title = {Semantic Web Mining for Building Information Portals (Position Paper)},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2002/hartmann2002semanticweb.pdf},
  year = 2002
}

@article{cole03document,
  abstract = {This paper discusses an document discovery tool based on
conceptual clustering by formal concept analysis. The program
allows users to navigate email using a visual lattice metaphor
rather than a tree. It implements a virtual file structure over
email where files and entire directories can appear in multiple
positions. The content and shape of the lattice formed by the
conceptual ontology can assist in email discovery. The system
described provides more flexibility in retrieving stored emails
than what is normally available in email clients. The paper
discusses how conceptual ontologies can leverage traditional
document retrieval systems and aid knowledge discovery in document
collections.},
  author = {Cole, Richard J. and Eklund, Peter W. and Stumme, Gerd},
  comment = {alpha},
  interhash = {48bdafb15aa8650ee735074d7ae449ca},
  intrahash = {473f5c2cca394fac0de61086082a09de},
  journal = {Journal of Applied Artificial Intelligence (AAI)},
  number = 3,
  pages = {257-280},
  title = {Document Retrieval for Email Search and Discovery using Formal Concept Analysis},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2003/AAI03_emails.pdf},
  volume = 17,
  year = 2003
}

@inproceedings{hereth01reverse,
  address = {Heidelberg},
  author = {Hereth, J. and Stumme, G.},
  booktitle = {Conceptual Structures: Broadening the Base. },
  comment = {alpha},
  editor = {Delugach, H. and Stumme, G.},
  interhash = {0b01ab0b9c59e8a8d97d0a8d4a0fd041},
  intrahash = {86270d99bc6aafb48a23c650c254d23e},
  pages = {202-215},
  publisher = {Springer},
  series = {LNAI},
  title = {Reverse Pivoting in Conceptual Information Systems.},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2001/ICCS01.pdf},
  volume = 2120,
  year = 2001
}

@inproceedings{stumme99numerical,
  address = {Heidelberg},
  author = {Stumme, G. and Wolff, K. E.},
  booktitle = {Advances in Database Technologies. Proc. Intl. Workshop on Data Warehousing and},
  comment = {alpha},
  editor = {Kambayashi, Y. and Lee, Dik Kun and Lim, Ee-Peng and Mohania, M. K. and Masunaga, Y.},
  interhash = {e3ef675c84f6ba5a8cee28cbb98a0b0c},
  intrahash = {2bffb5196bd99d7953c05d322fcfdd66},
  pages = {117-128},
  publisher = {Springer},
  series = {LNCS},
  title = {Numerical Aspects in the Data Model of Conceptual Information Systems},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/1998/ER98.pdf},
  volume = 1552,
  year = 1999
}

@article{stumme98knowledge,
  author = {Stumme, Gerd},
  comment = {alpha},
  interhash = {528149d6363f6c28046830cd1b8bb3e3},
  intrahash = {d03755fc571c2b7c0d2d6f6e600368f0},
  journal = {Zeitschrift für Semiotik},
  number = {3-4},
  pages = 424,
  title = {Knowledge, {L}ogic, {I}nformation. {C}onference {R}eport.},
  volume = 20,
  year = 1998
}

@inproceedings{Stumme1999acquiring,
  address = {Heidelberg},
  author = {Stumme, Gerd},
  booktitle = {Knowledge Acquisition, Modeling, and Management. Proc. 11th European},
  editor = {Fensel, D. and Studer, R.},
  interhash = {d8bb89a08a3434c3135885e18660f724},
  intrahash = {60dd3cf5ec48b03a4db39e4f24e6c632},
  page = {318-331},
  pages = {275-290},
  publisher = {Springer},
  series = {LNAI},
  title = {Acquiring Expert Knowledge for the Design of Conceptual Information Systems},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/1999/P1997-EKAW99.pdf},
  volume = 1621,
  year = 1999
}

@inproceedings{stumme99dual,
  address = {Heidelberg},
  author = {Stumme, Gerd},
  booktitle = {Datenbanksysteme in Büro, Technik und Wissenschaft. Proc. BTW'99},
  comment = {alpha},
  editor = {Buchmann, A.},
  interhash = {6a1e15bb9793cdac73aba607d53d966b},
  intrahash = {022d58bb6596a05c31d3a2eb42f72e4d},
  pages = {328-342},
  title = {Dual Retrieval in Conceptual Information Systems},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/1999/P2021-BTW99.pdf},
  year = 1999
}

@inproceedings{hotho03wordnet,
  address = {Toronto},
  author = {Hotho, A and Staab, S. and Stumme, G.},
  booktitle = {Proc. SIGIR Semantic Web Workshop},
  comment = {alpha},
  interhash = {c2a9a89ce20cef90a1e78d34dc2c2afe},
  intrahash = {04c7d86337d68e4ed9ae637029c43414},
  title = {Wordnet improves text document clustering},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2003/hotho2003wordnet.pdf},
  year = 2003
}

@inproceedings{stumme97computing,
  address = {Vancouver, Canada},
  author = {Stumme, Gerd and Wolff, Karl Erich},
  booktitle = {Proc. Intl. Symposium on Knowledge Retrieval, Use, and Storage for Efficiency},
  comment = {alpha},
  interhash = {b04ab6b2046b85dba6d861ad23b8101a},
  intrahash = {09244927cabf900accd89964a28c41de},
  month = {Aug 11-13},
  pages = {206-219},
  title = {Computing in Conceptual Data systems with relational structures},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/1997/KRUSE97.pdf},
  year = 1997
}

@proceedings{maedche02information,
  address = {Aachen},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  editor = {Maedche, Alexander and Sattler, Kai-Uwe and Stumme, Gerd},
  ee = {http://doi.acm.org/10.1145/1013369},
  interhash = {8ec5e42e0173c7130e5f2d4c70ac1ac2},
  intrahash = {2537bcf40084c8492e0ab397ba6947fe},
  journal = {CEUR-WS},
  series = {CEUR Workshop Proceedings},
  title = {Information Integration and Mining in Databases and on the Web. Proceedings of the 2nd International Workshop on Databases, Documents, and Information Fusion (DBFusion 2002)},
  url = {http://ftp.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-124/},
  volume = 124,
  year = 2004
}

@inproceedings{hotho2006information,
  address = {Heidelberg},
  author = {Hotho, Andreas and Jäschke, Robert and Schmitz, Christoph and Stumme, Gerd},
  booktitle = {The Semantic Web: Research and Applications},
  editor = {Sure, York and Domingue, John},
  interhash = {10ec64d80b0ac085328a953bb494fb89},
  intrahash = {3c301945817681d637ee43901c016939},
  month = {June},
  pages = {411-426},
  publisher = {Springer},
  series = {LNAI},
  title = {Information Retrieval in Folksonomies: Search and Ranking},
  volume = 4011,
  year = 2006
}

@book{berendt09knowledge,
  address = {Heidelberg},
  author = {?},
  interhash = {12fa8ec01220bd1e437a945ea1972a09},
  intrahash = {d3aee79927e4d00aa1408d2a26749778},
  note = {(to appear)},
  publisher = {Springer},
  title = {Knowledge Discovery Enhanced with Semantic and Social Information},
  year = {2009 }
}

@inproceedings{ducrou2006FCA,
  author = {Ducrou, J. and Vormbrock, B. and Eklund, P. W.},
  booktitle = {Proc. of the 14 th Int. Conference on Conceptual Structures},
  interhash = {945317e6fad27eff08082ef38cc01dff},
  intrahash = {be881638f77ac9d0b4e8434f0b3385f6},
  location = {LNAI},
  publisher = {Springer-Verlag},
  title = {{FCA}-based Browsing and Searching of a Collection of Images},
  year = 2006
}