@incollection{cimiano2004conceptual,
  address = {Berlin/Heidelberg},
  author = {Cimiano, Philipp and Hotho, Andreas and Stumme, Gerd and Tane, Julien},
  booktitle = {Concept Lattices},
  editor = {Eklund, Peter},
  interhash = {e42d9895b0d816f231227f1be15b03dc},
  intrahash = {9676ee1ded2b73fa90253a2a5dccdbf8},
  isbn = {978-3-540-21043-6},
  pages = {189--207},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Conceptual Knowledge Processing with Formal Concept
                   Analysis and Ontologies},
  url = {http://dx.doi.org/10.1007/978-3-540-24651-0_18},
  volume = 2961,
  year = 2004
}

@inproceedings{mitzlaff2011community,
  author = {Mitzlaff, Folke and Atzmueller, Martin and Benz, Dominik and Hotho, Andreas and Stumme, Gerd},
  booktitle = {Analysis of Social Media and Ubiquitous Data},
  interhash = {1ef065a81ed836dfd31fcc4cd4da133b},
  intrahash = {0f45e870093c053e6f41f54c14bda46b},
  series = {LNAI},
  title = {{Community Assessment using Evidence Networks}},
  volume = 6904,
  year = 2011
}

@inproceedings{ADHMS:11,
  author = {Atzmueller, Martin and Doerfel, Stephan and Hotho, Andreas and Mitzlaff, Folke and Stumme, Gerd},
  booktitle = {Proc. Workshop on Mining Ubiquitous and Social Environments (MUSE 2011) at ECML/PKDD 2011},
  interhash = {49e97def917e352ca21ab2e3eb7bd88a},
  intrahash = {1fe037ea2712b205c564243d67840059},
  title = {Face-to-Face Contacts during a Conference: Communities, Roles, and Key Players},
  year = 2011
}

@book{ABHS:10,
  editor = {Atzmueller, Martin and Benz, Dominik and Hotho, Andreas and Stumme, Gerd},
  interhash = {9815398a19b44982b6e1b406d1eea00c},
  intrahash = {060c675871a5e2173af200bd12f6f3ff},
  publisher = {Department of Electrical Engineering/Computer Science, Kassel University},
  series = {Technical report (KIS), 2010-10},
  title = {{Proceedings of the LWA 2010 - Lernen, Wissen, Adaptivit\"at}},
  year = 2010
}

@proceedings{dau05contributions,
  address = {Kassel},
  booktitle = {Contributions to ICCS 2005},
  editor = {Dau, Frithjof and Mugnier, Marie-Laure and Stumme, Gerd},
  interhash = {1d639a4ee220bfb2e4e345921da8f57b},
  intrahash = {922eeab1c4a936636813e44c6b42092e},
  isbn = {3-89958-138-5},
  publisher = {kassel university press},
  title = {Contributions to ICCS 2005},
  url = {http://www.kde.cs.uni-kassel.de/conf/iccs05},
  year = 2005
}

@proceedings{conf/iccs/2005,
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ICCS},
  editor = {Dau, Frithjof and Mugnier, Marie-Laure and Stumme, Gerd},
  interhash = {a8f702ec263f350956e647b7e0b54ee0},
  intrahash = {049a73d0f39efc7d4d988f262911c6f4},
  isbn = {3-540-27783-8},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Conceptual Structures: Common Semantics for Sharing Knowledge, 13th International Conference on Conceptual Structures, ICCS 2005, Kassel, Germany, July 17-22, 2005, Proceedings},
  url = {http://www.kde.cs.uni-kassel.de/conf/iccs05},
  volume = 3596,
  year = 2005
}

@inproceedings{cimiano2004concept,
  abstract = {Among many other knowledge representations formalisms, Ontologies
and Formal Concept Analysis (FCA) aim at modeling 'concepts'. We
discuss how these two formalisms may complement another from an
application point of view. In particular, we will see how FCA can
be used to support Ontology Engineering, and how ontologies can be
exploited in FCA applications. The interplay of FCA and ontologies
is studied along the life cycle of an ontology:
 (i) FCA can support the building of the ontology as a
 learning technique.
 (ii) The established ontology can be analyzed and navigated by
 using techniques of FCA.
 (iii) Last but not least, the ontology may be used to improve an FCA
 application.},
  address = {Heidelberg},
  author = {Cimiano, Philipp and Hotho, Andreas and Stumme, Gerd and Tane, Julien},
  booktitle = {Concept Lattices},
  editor = {Eklund, Peter},
  interhash = {e42d9895b0d816f231227f1be15b03dc},
  intrahash = {062d956cd265215f53fdc7b8401b7f15},
  isbn = {3-540-23258-3},
  organization = {Second International Conference on Formal Concept Analysis, ICFCA 2004},
  pages = {189-207},
  publisher = {Springer},
  series = {LNAI},
  title = {Conceptual Knowledge Processing with Formal Concept Analysis and Ontologies},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2004/cimiano2004concept.pdf},
  volume = 2961,
  year = 2004
}

@proceedings{berendt03european,
  address = {Cavtat/Dubrovnik, Croatia},
  comment = {alpha},
  editor = {Berendt, B. and Hotho, A. and Mladeni\'c, D. and van Someren, M. and Spiliopoulou, M. and Stumme, G.},
  interhash = {1afa094a3f1770fa727bb48153f74e01},
  intrahash = {b895cb34882a1cae076c752b1528aeb0},
  month = {September 22,},
  title = {Proceedings of the 1st European Web Mining Forum (EWMF 2003)},
  url = {http://km.aifb.uni-karlsruhe.de/ws/ewmf03/},
  year = 2003
}

@techreport{hotho03textclustering,
  abstract = {Text document clustering plays an important role in providing intuitive
navigation and browsing mechanisms by organizing large amounts of information
into a small number of meaningful clusters. Standard partitional or agglomerative
clustering methods efficiently compute results to this end.
However, the bag of words representation used for these clustering methods is often
unsatisfactory as it ignores relationships between important terms that do not
co-occur literally. Also, it is mostly left to the user to find out why a particular partitioning
has been achieved, because it is only specified extensionally. In order to
deal with the two problems, we integrate background knowledge into the process of
clustering text documents.
First, we preprocess the texts, enriching their representations by background knowledge
provided in a core ontology — in our application Wordnet. Then, we cluster
the documents by a partitional algorithm. Our experimental evaluation on Reuters
newsfeeds compares clustering results with pre-categorizations of news. In the experiments,
improvements of results by background knowledge compared to the baseline
can be shown for many interesting tasks.
Second, the clustering partitions the large number of documents to a relatively small
number of clusters, which may then be analyzed by conceptual clustering. In our approach,
we applied Formal Concept Analysis. Conceptual clustering techniques are
known to be too slow for directly clustering several hundreds of documents, but they
give an intensional account of cluster results. They allow for a concise description
of commonalities and distinctions of different clusters. With background knowledge
they even find abstractions like “food” (vs. specializations like “beef” or “corn”).
Thus, in our approach, partitional clustering reduces first the size of the problem
such that it becomes tractable for conceptual clustering, which then facilitates the
understanding of the results.},
  author = {Hotho, Andreas and Staab, Steffen and Stumme, Gerd},
  comment = {alpha},
  institution = {University of Karlsruhe, Institute AIFB},
  interhash = {0bc7c3fc1273355f45c8970a7ea58f97},
  intrahash = {61d58db419af0dbc3681432588219c3d},
  title = {Text Clustering Based on Background Knowledge},
  type = {Technical Report },
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2003/hotho2003text.pdf},
  volume = 425,
  year = 2003
}

@article{hereth03conceptual,
  abstract = {In this paper we discuss Conceptual Knowledge Discovery in Databases (CKDD) as it is developing in the field of Conceptual Knowledge
 Processing. Conceptual Knowledge
 Processing is based on the mathematical theory of Formal Concept
 Analysis which has become a successful theory for data analysis during
 the last two decades. CKDD aims to support a human-centered process
of discovering knowledge from data by visualizing and analyzing
the conceptual structure of the data. We dicuss how the
management system TOSCANA for conceptual information systems
supports CKDD, and illustrate it by two applications in database
marketing and flight movement analysis. Finally, we present a
new tool for conceptual deviation discovery, Chianti.},
  author = {Hereth, Joachim and Stumme, Gerd and Wille, Rudolf and Wille, Uta},
  comment = {alpha},
  interhash = {a9c05101aeb799232425d7651a581684},
  intrahash = {edffeb9bd2aaac559f2a6233dd49ae3b},
  journal = {Journal of Applied Artificial Intelligence (AAI)},
  number = 3,
  pages = {281-301},
  title = {Conceptual Knowledge Discovery - a Human-Centered Approach},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2003/hereth2003conceptual.pdf},
  volume = 17,
  year = 2003
}

@incollection{stumme02using,
  address = {Heidelberg},
  author = {Stumme, G.},
  booktitle = {Wissensmanagement mit Referenzmodellen -- Konzepte für die Anwendungssystem- und Organisationsgestaltung},
  comment = {alpha},
  editor = {Becker, J. and Knackstedt, R.},
  interhash = {89b56b4b45d3c9256355080ce94045e0},
  intrahash = {8cd4f719765abd1c46d28f200327d935},
  pages = {163-174},
  publisher = {Physica},
  title = {Using Ontologies and Formal Concept Analysis for Organizing Business Knowledge},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2001/REFMOD01.ps},
  year = 2002
}

@proceedings{gronau01methoden,
  address = {Aachen},
  comment = {alpha},
  editor = {Gronau, N. and Stumme, G.},
  interhash = {ad470c6e95f67240b9c2dce3f65f1f3f},
  intrahash = {fd3698c685ae7f07a29e8255199aa542},
  pages = {287-378},
  publisher = {Shaker},
  title = {Methoden und Techniken der Wissensverarbeitung. Workshop der 1. Tagung Professionelles Wissensmanagement
                  --  Erfahrungen und Visionen },
  url = {http://wm2001.aifb.uni-karlsruhe.de/ws/ws7.html},
  year = 2001
}

@proceedings{schnurr01professionnelles,
  address = {Aachen},
  comment = {alpha},
  editor = {Schnurr, H. P. and Staab, S. and Studer, R. and Stumme, G. and Sure, Y.},
  interhash = {5ae5c79da19f12a27e0983be5c7f158d},
  intrahash = {62a33713ffd8549124f1ce62019cd614},
  publisher = {Shaker},
  title = {Professionelles Wissensmanagement -- Erfahrungen und Visionen. Proc. WM '01},
  url = {http://wm2001.aifb.uni-karlsruhe.de/},
  year = 2001
}

@inproceedings{stumme05conceptual,
  address = {Trondheim},
  author = {Stumme, Gerd},
  booktitle = {Ontologies-based techniques for DataBases and Information Systems},
  editor = {Collard, Martine and Cavarero, Jean-Louis},
  interhash = {946495ceddb971b4c276e1d1581eaf59},
  intrahash = {c0fef31a406a9e305ea459d24af29e0d},
  pages = 5,
  title = {Conceptual Knowledge Processing (Invited Talk)},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2005/stumme2005some_slides.pdf},
  year = 2005
}

@proceedings{stumme00begriffliche,
  address = {Heidelberg},
  comment = {alpha},
  editor = {Stumme, Gerd and Wille, Rudolf},
  interhash = {fd1a01ab39d86aa72487bc68bfd4d887},
  intrahash = {da312496324083ee022682d70fdb22a1},
  publisher = {Springer},
  title = {Begriffliche Wissensverarbeitung -- Methoden und Anwendungen},
  url = {http://www.springer.com/dal/home/generic/search/results?SGWID=1-40109-22-2058937-0},
  year = 2000
}

@techreport{stumme99conceptualknowledge,
  author = {Stumme, G.},
  comment = {alpha},
  institution = {TU Darmstadt},
  interhash = {c33970150f97bad7972281e38b42738f},
  intrahash = {6d562dc043ba698acee8a83ce35bde6e},
  title = {Conceptual Knowledge Discovery with Frequent Concept Lattices},
  type = {{FB}4-{P}reprint 2043},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/1999/P2043.pdf},
  year = 1999
}

@inproceedings{stumme97tool,
  address = {Berlin},
  author = {Stumme, Gerd},
  booktitle = {Conceptual Structures: Fulfilling  Peirce's Dream. Proc. ICCS'97},
  editor = {Lukose, D. and Delugach, H. and Keeler, M. and Searle, L. and Sowa, J. F.},
  interhash = {fce31f95ec4537a11fd78e5081d63fe6},
  intrahash = {81bd13dbc2767c77b18bc3bd919fcc29},
  page = {318-331},
  publisher = {Springer},
  series = {LNAI},
  title = {Concept Exploration - A Tool for Creating and Exploring Conceptual Hierarchies},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/1997/P1905-ICCS97.pdf},
  volume = 1257,
  year = 1997
}

@inproceedings{stumme98knowledgeacquisition,
  address = {Heidelberg},
  author = {Stumme, Gerd},
  booktitle = {KI-98: Advances in Artificial Intelligence. Proc. 22. Jahrestagung},
  comment = {alpha},
  editor = {Herzog, O. and Günter, A.},
  interhash = {733cdb16d12f945d904f46c3243bcabb},
  intrahash = {df6b2348edd768d19918387671315251},
  pages = {117-128},
  publisher = {Springer},
  series = {LNAI},
  title = {Distributive Concept Exploration - A Knowledge Acquisition Tool in Formal Concept Analysis},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/1998/KI98.pdf},
  volume = 1504,
  year = 1998
}

@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
}