forthcoming
Christian Freksa:
KI und Kognition.
In Anna Strasser, Katja Stepec, Ralf Stapelfeldt, Wolfgang Sohst: Künstliche Intelligenz. Die große Verheißung. Xenomoi, Berlin
2020
Christian Freksa, Maria Vasardani, Felix Kroll:
Dynamic problem solving in space.
Spatial Cognition XII, Jurģis Šķilters et al. (eds.); LNAI 12162, 18-32, Springer 2020
Christian Freksa:
Beyond spatial reasoning: Challenges for ecological problem solving.
JOSIS 20, 43-49 (2020)
Ming Tang, Zoe Falomir, Christian Freksa, Yehua Sheng, Haiyang Lyu:
Extracting invariant characteristics of sketch maps: Towards place query-by-sketch.
Transactions in GIS. 2020;00:1–41.
2019
Christian Freksa, Thomas Barkowsky, Zoe Falomir, Jasper van de Ven:
Geometric problem solving with strings and pins.
Spatial Cognition & Computation 19 (1): 46-68 (2019)
Ashok K. Goel, Colleen M. Seifert, Christian Freksa:
Proceedings of the 41th Annual Meeting of the Cognitive Science Society, CogSci 2019: Creativity + Cognition + Computation, Montreal, Canada, July 24-27, 2019. cognitivesciencesociety.org 2019, ISBN 0-9911967-7-5
2018
Christian Freksa, Jasper van de Ven, Diedrich Wolter:
Formal representation of qualitative direction.
International Journal of Geographical Information Science 32 (12): 2514-2534 (2018)
Ana-Maria Olteteanu, Zoe Falomir, Christian Freksa:
Artificial Cognitive Systems That Can Answer Human Creativity Tests: An Approach and Two Case Studies.
IEEE Trans. Cognitive and Developmental Systems 10 (2): 469-475 (2018)
Christian Freksa:
Mild Abstraction in Spatial Problem Solving.
CCIA 2018: 4-8
Jasper van de Ven, Munehiro Fukuda, Holger Schultheis, Christian Freksa, Thomas Barkowsky:
Analyzing Strong Spatial Cognition: A Modeling Approach.
Spatial Cognition 2018: 197-208
Yun-Ming Shih, Collin Gordon, Munehiro Fukuda, Jasper van de Ven, Christian Freksa:
Translation of String-and-Pin-based Shortest Path Construction into Data-Scalable Agent-based Computational Models.
WSC 2018: 881-892
Jasper van de Ven, Ahmed Loai Ali, Thomas Barkowsky, Christian Freksa, Michael Epprecht, Thatheva Saphangthong, Peter Haddawy:
Mobile decision support for yellow-spined bamboo locust plague intervention.
Location Based Services 2018: 56-62
Christian Freksa, Thomas Barkowsky, Frank Dylla, Zoe Falomir, Ana-Maria Olteteanu, Jasper van de Ven:
Spatial problem solving and cognition.
In Jefferey Zacks, Holly Taylor: Representations in Mind and World, 156-183, Routledge, New York, 2018
2017
Ahmed Loai Ali, Jasper van de Ven, Thatheva Saphangthong, Christian Freksa, Thomas Barkowsky, Sithong Thongmanivong, Houngphet Chanthavong, Peter Haddawy:
Experience with the Mobile4D Disaster Reporting and Alerting System in Lao PDR.
ICT4D2017: 525-535
Christian Freksa, Ana-Maria Olteteanu, Thomas Barkowsky, Jasper van de Ven, Holger Schultheis:
Spatial Problem Solving in Spatial Structures.
MIWAI 2017: 18-29
Christian Freksa, Arne Kreutzmann:
Neighborhood, Conceptual.
The International Encyclopedia of Geography, 1-12, Wiley-Blackwell, Hoboken, 2017
Ahmed Loai Ali, Zoe Falomir, Falko Schmid, Christian Freksa:
Rule-guided human classification of volunteered geographic information.
ISPRS Journal of Photogrammetry and Remote Sensing 127, 3-15 (2017)
2016
Marco Ragni, Thomas Barkowsky, Bernhard Nebel, Christian Freksa:
Cognitive Space and Spatial Cognition: The SFB/TR 8 Spatial Cognition.
KI 30 (1): 83-88 (2016)
Ulrich Furbach, Florian Furbach, Christian Freksa:
Relating Strong Spatial Cognition to Symbolic Problem Solving - An Example.
CoRR abs/1606.04397 (2016)
Rainer Malaka, Frank Dylla, Christian Freksa, Thomas Barkowsky, Marc Herrlich, Ron Kikinis:
Intelligent support for surgeons in the operating room.
In Mihai Nadin: Anticipation and Medicine, 269-277, Springer, 2016
2015
Christian Freksa:
Computational Problem Solving in Spatial Substrates - A Cognitive Systems Engineering Approach.
Int. J. Software and Informatics 9 (2): 279-288 (2015)
Jasper van de Ven, Dimitra Anastasiou, Frank Dylla, Susanne Boll, Christian Freksa:
The SOCIAL Project - Approaching Spontaneous Communication in Distributed Work Groups. AmI 2015: 171-186
Christian Freksa:
Strong Spatial Cognition.
COSIT 2015: 65-86
Mehul Bhatt, Christian Freksa:
Spatial computing for design: An artificial intelligence perspective.
In John Gero: Studying visual and spatial reasoning for design creativity, 109-127, Springer, Berlin 2015
2014
Christian Freksa, Bernhard Nebel, Mary Hegarty, Thomas Barkowsky:
Spatial Cognition IX - International Conference, Spatial Cognition 2014, Bremen, Germany, September 15-19, 2014. Proceedings.
Lecture Notes in Computer Science 8684, Springer 2014, ISBN 978-3-319-11214-5 [contents]
Christian Freksa:
Informatik zwischen Computern und Realität.
In Anja Zeising, Claude Draude, Heidi Schelhowe, Susanne Maass S:
Vielfalt der Informatik - Ein Beitrag zu Selbstverständnis und Außenwirkung, 177-178,
Staats- und Universitätsbibliothek Bremen, 2014
Christian Freksa, Holger Schultheis:
Three ways of using space.
In Daniel R Montello, Karl E Grossner, Donald G Janelle DG: Space in mind: Concepts for spatial learning and education. Cambridge, 31-48, MIT Press, Cambridge, MA, 2014
2013
Christian Freksa:
Understanding Cognition through Synthesis and Analysis.
Int. J. Software and Informatics 7 (1): 3-18 (2013)
Arne Kreutzmann, Immo Colonius, Diedrich Wolter, Frank Dylla, Lutz Frommberger, Christian Freksa:
Temporal logic for process specification and recognition.
Intelligent Service Robotics 6 (1): 5-18 (2013)
Mehul Bhatt, Jakob Suchan, Christian Freksa:
Rotunde - A Smart Meeting Cinematography Initiative - Tools, Datasets, and Benchmarks for Cognitive Interpretation and Control.
AAAI Workshop: Space, Time, and Ambient Intelligence 2013
Falko Schmid, Lutz Frommberger, Chunyuan Cai, Christian Freksa:
What You See is What You Map: Geometry-Preserving Micro-Mapping for Smaller Geographic Objects with mapIT.
AGILE Conf. 2013: 3-19
Christian Freksa:
The Power of Space and Time - How Spatial and Temporal Structures Can Replace Computational Effort.
AIC@AI*IA 2013: 10
Mehul Bhatt, Carl Schultz, Christian Freksa:
The ‘Space’ in Spatial Assistance Systems.
In Thora Tenbrink, Jan Wiener, Christophe Claramunt: Representing Space in Cognition: Behaviour, Language, and Formal Models, 171-214, Oxford University Press, 2013
Christian Freksa:
Spatial Computing – How spatial structures replace computational effort.
In Martin Raubal, David Mark, Andrew Frank: Cognitive and linguistic aspects of geographic space, 23-42, Springer, Berlin, 2013
Christian Freksa:
Fuzzy relations and cognitive representations.
In Rudolf Seising, Enric Trillas, Claudio Moraga, Settimo Termini: On Fuzziness – A Homage to Lotfi A. Zadeh, vol 1, 183-190, Springer, Heidelberg 2013
2012
Stephan Winter, Christian Freksa:
Approaching the notion of place by contrast.
JOSIS 5 (1): 31-50 (2012)
Jan Frederik Sima, Christian Freksa:
Towards Computational Cognitive Modeling of Mental Imagery - The Attention-Based Quantification Theory.
KI 26 (3): 261-267 (2012)
Mehul Bhatt, Christian Freksa:
Analytical computing for spatial design: An artificial intelligence perspective.
First Annual Conference on Advances in Cognitive Systems, 35-52, Palo Alto, 2012
Elisabeth Weissensteiner, Christian Freksa:
Wolkenkuckucksheim: Art as metaphor of the mind.
Leonardo 45 (5): 414-422 (2012)
Christian Freksa:
R. L. d. M. – Scholar, Engineer, Leader, Advisor, Artist, and Friend.
In Carles Sierra: Festschrift in honour of Ramón López de Mántaras, 247-250, IIIA, CSIC, Barcelona 2012
2011
Bernhard Nebel, Christian Freksa:
AI Approaches to Cognitive Systems - The Example of Spatial Cognition.
Informatik Spektrum 34 (5): 462-468 (2011)
Arne Kreutzmann, Immo Colonius, Lutz Frommberger, Frank Dylla, Christian Freksa, Diedrich Wolter:
On Process Recognition by Logical Inference.
ECMR 2011: 7-12
2010
Christian Freksa, Holger Schultheis, Kerstin Schill, Thora Tenbrink, Thomas Barkowsky, Christoph Hölscher, Bernhard Nebel:
Spatial Cognition: Reasoning, Action, Interaction.
KI 24 (4): 329-334 (2010)
Torsten Hildebrand, Lutz Frommberger, Diedrich Wolter, Christian Zabel, Bernd Scholz-Reiter, Christian Freksa:
Towards optimization of manufacturing systems using autonomous robotic observers.
Proc 7th CIRP International Conf on Intelligent Computation in Manufacturing Engineering (ICME 2010), Capri, Italy 2010
2009
Thora Tenbrink, Christian Freksa:
Contrast sets in spatial and temporal language.
Cognitive Processing 10: 322-324 (2009)
2008
Diedrich Wolter, Frank Dylla, Stefan Wölfl, Jan Oliver Wallgrün, Lutz Frommberger, Bernhard Nebel, Christian Freksa:
SailAway: Spatial Cognition in Sea Navigation.
KI 22 (1): 28-30 (2008)
Christian Freksa:
Spatial Cognition: Agents between Sensation and Reality.
WETICE 2008
Diedrich Wolter, Christian Freksa, Longin Jan Latecki:
Towards a Generalization of Self-localization.
Robotics and Cognitive Approaches to Spatial Mapping 2008: 105-134
Christian Freksa, Nora S. Newcombe, Peter Gärdenfors, Stefan Wölfl:
Spatial Cognition VI. Learning, Reasoning, and Talking about Space, International Conference Spatial Cognition 2008, Freiburg, Germany, September 15-19, 2008. Proceedings.
Lecture Notes in Computer Science 5248, Springer 2008, ISBN 978-3-540-87600-7 [contents]
Sven Bertel, Thomas Barkowsky, Christian Freksa:
Mental model-centered design for built environments.
In Saif Haq, Christoph Hölscher, Sue Torgrude: Proc. EDRAMOVE workshop on "Movement and orientation in built environments: evaluating design rationale and user cognition", 13-19, SFB/TR 8 Report No. 015-05/2008, Bremen, 2008
Christian Freksa:
Zur interdisziplinären Erforschung räumlichen Denkens.
In Günter D Rey, Thomas Wehr: Kognitive Psychologie – Ausgewählte Grundlagen- und Anwendungsbeispiele, 87-108, Pabst Science Publishers, Lengerich 2008
2007
Christian Freksa, Sven Bertel:
Eye movements and smart technology.
Comp. in Bio. and Med. 37 (7): 983-988 (2007)
Inessa Seifert, Thomas Barkowsky, Christian Freksa:
Region-Based Representation for Assistance with Spatio-Temporal Planning in Unfamiliar Environments.
Location Based Services and TeleCartography 2007: 179-191
Anthony G. Cohn, Christian Freksa, Bernhard Nebel:
Spatial Cognition: Specialization and Integration, 04.12. - 09.12.2005.
Dagstuhl Seminar Proceedings 05491, Internationales Begegnungs- und Forschungszentrum fuer Informatik (IBFI), Schloss Dagstuhl, Germany 2007 [contents]
Christian Freksa, Michael Kohlhase, Kerstin Schill:
KI 2006: Advances in Artificial Intelligence, 29th Annual German Conference on AI, KI 2006, Bremen, Germany, June 14-17, 2006, Proceedings.
Lecture Notes in Computer Science 4314, Springer 2007, ISBN 978-3-540-69911-8 [contents]
Sven Bertel, Georg Vrachliotis, Christian Freksa:
Aspect-oriented building design: Towards computer-aided approaches to solving spatial constraint problems in architecture.
In Gary L Allen: Applied spatial cognition: From research to cognitive technology, 75-102, Lawrence Erlbaum, Mahwah, NJ, 2007
2006
Jan Oliver Wallgrün, Lutz Frommberger, Diedrich Wolter, Frank Dylla, Christian Freksa:
Qualitative Spatial Representation and Reasoning in the SparQ-Toolbox.
Spatial Cognition 2006: 39-58
Alexander Klippel, Christian Freksa, Stephan Winter:
You-Are-Here maps in emergencies – the danger of getting lost.
Journal of Spatial Science 51, 1, 117-131, 2006
Sven Bertel, Thomas Barkowsky, Peter König, Holger Schultheis, Christian Freksa:
Sketching mental images and reasoning with sketches: NEVILLE – a computational model of mental & external spatial problem solving.
In Danilo Fum, Fabio del Missier, Andrea Stocco: Proc 7thIntern Conf on Cognitive Modeling, ICCM ’06, 349-350, Edizioni Goliardiche, Trieste 2006
Sven Bertel, Thomas Barkowsky, Dominik Engel, Christian Freksa:
Computational modeling of reasoning with mental images: basic requirements.
In Danilo Fum, Fabio del Missier, Andrea Stocco: Proc 7thIntern Conf on Cognitive Modeling, ICCM ’06, 50-55, Edizioni Goliardiche, Trieste 2006
2005
Michael L. Anderson, Thomas Barkowsky, Pauline Berry, Douglas S. Blank, Timothy Chklovski, Pedro M. Domingos, Marek J. Druzdzel, Christian Freksa, John Gersh, Mary Hegarty, Tze-Yun Leong, Henry Lieberman, Ric K. Lowe, Susann Luperfoy, Rada Mihalcea, Lisa Meeden, David P. Miller, Tim Oates, Robert L. Popp, Daniel G. Shapiro, Nathan Schurr, Push Singh, John Yen:
Reports on the 2005 AAAI Spring Symposium Series.
AI Magazine 26 (2): 87-92 (2005)
Thomas Barkowsky, John A. Bateman, Christian Freksa, Wolfram Burgard, Markus Knauff:
Transregional Collaborative Research Center SFB/TR 8 Spatial Cognition: Reasoning, Action, Interaction (Sonderforschungsbereich/Transregio SFB/TR 8 Raumkognition: Schließen, Handeln, Interagieren).
it - Information Technology 47 (3): 163-171 (2005)
Thomas Barkowsky, Christian Freksa, Markus Knauff
Special Issue: "Spatial and Visual Components in Mental Reasoning About Space" Editorial. Spatial Cognition & Computation 5 (2-3): 115-117 (2005)
Thomas Barkowsky, Christian Freksa, Mary Hegarty, Ric K. Lowe:
Organizing Committee.
AAAI Spring Symposium: Reasoning with Mental and External Diagrams: Computational Modeling and Spatial Assistance 2005
Thomas Barkowsky, Christian Freksa, Mary Hegarty, Ric K. Lowe:
Preface: Reasoning with Mental and External Diagrams: Computational Modeling and Spatial Assistance.
AAAI Spring Symposium: Reasoning with Mental and External Diagrams: Computational Modeling and Spatial Assistance 2005
Christian Freksa, Thomas Barkowsky:
Raumkognition aus der Perspektive der KI.
GI Jahrestagung (2) 2005: 665
Anthony G. Cohn, Christian Freksa, Bernhard Nebel:
05491 Abstracts Collection -- Spatial Cognition: Specialization and Integration.
Spatial Cognition: Specialization and Integration 2005
Christian Freksa:
05491 Executive Summary -- Spatial Cognition: Specialization and Integration.
Spatial Cognition: Specialization and Integration 2005
Christian Freksa, Alexander Klippel, Stephan Winter:
A Cognitive Perspective on Spatial Context.
Spatial Cognition: Specialization and Integration 2005
Alexander Klippel, Kai-Florian Richter, Thomas Barkowsky, Christian Freksa:
The cognitive reality of schematic maps.
In Liqiu Meng, Alexander Zipf, Tumasch Reichenbacher: Map-based Mobile Services - Theories, Methods and Implementations, 57-74, Springer, Berlin, 2005.
2004
Christian Freksa:
Spatial Cognition: An AI Perspective.
ECAI 2004: 1122-1128
Alexander Klippel, Lothar Knuf, Bernhard Hommel, Christian Freksa:
Perceptually Induced Distortions in Cognitive Maps.
Spatial Cognition 2004: 204-213
Max J. Egenhofer, Christian Freksa, Harvey J. Miller:
Geographic Information Science, Third International Conference, GIScience 2004, Adelphi, MD, USA, October 20-23, 2004, Proceedings.
Lecture Notes in Computer Science 3234, Springer 2004, ISBN 3-540-23558-2 [contents]
Christian Freksa, Markus Knauff, Bernd Krieg-Brückner, Bernhard Nebel, Thomas Barkowsky:
Spatial Cognition IV: Reasoning, Action, Interaction, International Conference Spatial Cognition 2004, Frauenchiemsee, Germany, October 11-13, 2004, RevisedSelected Papers. Lecture Notes in Computer Science 3343, Springer 2004, ISBN 3-540-25048-4 [contents]
Alexander Klippel, Carsten Dewey, Markus Knauff, Kai-Florian Richter, Daniel R Montello, Christian Freksa, Esther-Anna Loeliger:
Direction Concepts in Wayfinding Assistance Systems.
In Jörg Baus, Christian Kray, Robert Porzel: Artificial Intelligence in Mobile Systems (AIMS'04 Nottingham), SFB 378 Memo 84, 1-8, Saarbrücken 2004
Sven Bertel, Christian Freksa, Georg Vrachliotis:
Aspectualize and conquer.
In John S Gero, Barbara Tversky, Terry Knight: Visual and Spatial Reasoning in Design III, 255-279, Key Centre of Design Computing and Cognition, University of Sydney, 2004
Kai-Florian Richter, Alexander Klippel, Christian Freksa:
Shortest, fastest, -- but what next? A different approach to route directions.
In Martin Raubal, Adam Sliwinski, Werner Kuhn:Geoinformation und Mobilität – von der Forschung zur praktischen Anwendung, Beiträge zu den Münsteraner GI-Tagen, 205-217, IfGI prints, Universität Münster 2004
2003
Reinhard Moratz, Bernhard Nebel, Christian Freksa:
Qualitative Spatial Reasoning about Relative Position: The Tradeoff between Strong Formal Properties and Successful Reasoning about Route Graphs.
Spatial Cognition 2003: 385-400
Christian Freksa, Wilfried Brauer, Christopher Habel, Karl Friedrich Wender:
Spatial Cognition III, Routes and Navigation, Human Memory and Learning, Spatial Representation and Spatial Learning.
Lecture Notes in Computer Science 2685, Springer 2003, ISBN 3-540-40430-9 [contents]
Thomas Barkowsky, Christian Freksa:
Transregional Collaborative Research Center SFB/TR 8 Spatial Cognition: Reasoning - Action – Interaction.
In Franz Schmalhofer, Richard M Young, Graham Katz: Proceedings of EuroCogSci 2003, 453–454. Lawrence Erlbaum, Mahwah, NJ
Thomas Barkowsky, Sven Bertel, Dominik Engel, Christian Freksa:
Design of an architecture for reasoning with mental images.
In International Workshop on Spatial and Visual Components in Mental Reasoning about Large-Scale Spaces, Bad Zwischenahn, 2003
2002
Markus Knauff, Christoph Schlieder, Christian Freksa:
Spatial Cognition: From Rat-Research to Multifunctional Spatial Assistance Systems.
KI 16 (4): 5-9 (2002)
Christian Freksa:
Spatial Cognition.
KI 4/2002 Special issue
2001
Christian Freksa, Rudolf Kruse, Ramón López de Mántaras:
Interview with Prof. Lotfi A. Zadeh.
KI 15 (3): 40-43 (2001)
Joe Heike Steinhauer, Tom Wiese, Christian Freksa, Thomas Barkowsky:
Recognition of Abstract Regions in Cartographic Maps.
COSIT 2001: 306-321
2000
Hernan Casakin, Thomas Barkowsky, Alexander Klippel, Christian Freksa:
Schematic Maps as Wayfinding Aids.
Spatial Cognition 2000: 54-71
Christian Freksa, Reinhard Moratz, Thomas Barkowsky:
Schematic Maps for Robot Navigation.
Spatial Cognition 2000: 100-114
Christian Freksa, Wilfried Brauer, Christopher Habel, Karl Friedrich Wender:
Spatial Cognition II, Integrating Abstract Theories, Empirical Studies, Formal Methods, and Practical Applications.
Lecture Notes in Computer Science 1849, Springer 2000, ISBN 3-540-67584-1 [contents]
Reinhard Moratz, Christian Freksa, Thomas Barkowsky:
Diagrammatic instruction maps for human-robot interaction.
In Thomas Röfer, Axel Lankenau, Reinhard Moratz: Service robotics - Applications and safety issues in an emerging market.Workshop Notes. ECAI 2000, Berlin
Christian Freksa, Reinhard Moratz, Thomas Barkowsky:
Robot navigation with schematic maps.
In Enrico Pagello, Frans Groen, Tamio Arai, Rüdiger Dillmann, Anthony Stentz: Intelligent Autonomous Systems 6, 809-816, Amsterdam: IOS Press 2000
1999
David M. Mark, Christian Freksa, Stephen C. Hirtle, Robert Lloyd, Barbara Tversky:
Cognitive models of geographical space.
International Journal of Geographical Information Science 13 (8): 747-774 (1999)
Christian Freksa, David M. Mark:
Spatial Information Theory: Cognitive and Computational Foundations of Geographic Information Science, International Conference COSIT '99, Stade, Germany, August 25-29, 1999, Proceedings.
Lecture Notes in Computer Science 1661, Springer 1999, ISBN 3-540-66365-7 [contents]
Christian Freksa, Thomas Barkowsky, Alexander Klippel:
Spatial symbol systems and spatial cognition: A computer science perspective on perception-based symbol processing.
Behavioral and Brain Sciences 22, 4, 616-617 (1999)
Christian Freksa:
Spatial aspects of task-specific wayfinding maps: A representation-theoretic perspective.
In John S Gero, Barbara Tversky: Visual and Spatial Reasoning in Design, 15-32, Key Centre of Design Computing and Cognition, University of Sydney, 1999
Christian Freksa:
Links vor – Prototyp oder Gebiet? Probabilistische und possibilistische Raumbeschreibung.
In Gert Rickheit: Richtungen im Raum, 231-246, Deutscher Universitäts-Verlag, Wiesbaden 1999
Christian Freksa, Thomas Barkowsky:
On the duality and on the integration of propositional and spatial representations.
In Christopher Habel, Gert Rickheit: Mental models in discourse processing and reasoning, 195-212, Elsevier, Amsterdam 1999
1998
Bettina Berendt, Thomas Barkowsky, Christian Freksa, Stephanie Kelter:
Spatial Representation with Aspect Maps.
Spatial Cognition 1998: 313-336
Christian Freksa, Christopher Habel, Karl Friedrich Wender:
Spatial Cognition, An Interdisciplinary Approach to Representing and Processing Spatial Knowledge.
Lecture Notes in Computer Science 1404, Springer 1998, ISBN 3-540-64603-5 [contents]
Reinhard Moratz, Christian Freksa:
Spatial reasoning with uncertain data using stochastic relaxation.
In Wilfried Brauer: Fuzzy-Neuro Systems ’98, 106-112, Proc. in Artificial Intelligence 7, Infix-Verlag, St. Augustin 1998
1997
Christian Freksa:
Spatial and Temporal Structures in Cognitive Processes.
Foundations of Computer Science: Potential - Theory - Cognition 1997: 379-387
Thomas Barkowsky, Christian Freksa:
Cognitive Requirements on Making and Interpreting Maps.
COSIT 1997: 347-361
Steffen Werner, Bernd Krieg-Brückner, Hanspeter A. Mallot, Karin Schweizer, Christian Freksa:
Spatial Cognition: The Role of Landmark, Route, and Survey Knowledge in Human and Robot Navigation.
GI Jahrestagung 1997: 41-50
Christian Freksa, Matthias Jantzen, Rüdiger Valk:
Foundations of Computer Science: Potential - Theory - Cognition, to Wilfried Brauer on the occasion of his sixtieth birthday.
Lecture Notes in Computer Science 1337, Springer 1997, ISBN 3-540-63746-X [contents]
Thomas Barkowsky, Christian Freksa, Bettina Berendt, Stephanie Kelter:
Aspektkarten – Integriert räumlich-symbolische Repräsentationsstrukturen.
In Carla Umbach, Michael Grabski, Robin Hörnig R: Perspektive in Sprache und Raum, 147-168, Deutscher Universitätsverlag, Wiesbaden 1997
1996
Kai Zimmermann, Christian Freksa:
Qualitative Spatial Reasoning Using Orientation, Distance, and Path Knowledge.
Appl. Intell. 6 (1): 49-58 (1996)
Gerhard Strube, Barbara Becker, Christian Freksa, Udo Hahn, Klaus Opwis, Günther Palm:
Wörterbuch der Kognitionswissenschaft.
Klett-Cotta, Stuttgart 1996
Wolfgang H Zangemeister, H Siegfried Stiehl, Freksa C:
Visual attention and cognition.
North-Holland, Amsterdam 1996
Thomas Barkowsky, Ralf Röhrig, Christian Freksa:
Operationalizing diagrammaticity.
ECAI-96 Workshop on Representations and processes between vision and natural language, Budapest 1996
Christian Freksa, Thomas Barkowsky:
On the relation between spatial concepts and geographic objects.
In Peter Burrough, Andrew Frank: Geographic objects with indeterminate boundaries, 109-121, Taylor and Francis, London 1996
1995
Christian Freksa:
KI und Kognition.
Themenheft KI 9, 6, 1995
Thomas Barkowsky, Bettina Berendt, Steffen Egner, Christian Freksa, Longin Latecki, Ralf Röhrig:
Qualitative orientation and navigation using purposive vision.
Arbeitspapier Nr. 25, Graduiertenkolleg Kognitionswissenschaft, Universität Hamburg, 1995
Thomas Barkowsky, Bettina Berendt, Steffen Egner, Christian Freksa, Longin Latecki, Ralf Röhrig:
Movies: an integrated space-time representation for qualitative navigation (extended abstract). In Bernd Krieg-Brückner, Christoph Herwig: Kognitive Robotik, ZKW Bericht 3/95, Universität Bremen 1995
Carola Eschenbach, Christian Freksa, Christopher Habel:
Räume.
Themenheft Kognitionswissenschaft 4, 4, 1995
Wolfgang H Zangemeister, Ulrich Öchsner, Christian Freksa:
Short-term adaptation of eye movements in patients with visual hemifield defects indicates high level control of human scanpath.
Optometry & Vision Science, 72, 7, 467-477 (1995)
1994
Christian Freksa:
Responses to Elkan (Christian Freksa).
IEEE Expert 9 (4): 20-21 (1994)
Christian Freksa:
Fuzzy systems in AI: An overview.
In Rudolf Kruse, Jörg Gebhardt, Rainer Palm: Fuzzy systems in computer science, 155-169, Vieweg, Braunschweig 1994
Thomas Barkowsky, Bettina Berendt, Steffen Egner, Christian Freksa, Thiemo Krink, Ralf Röhrig, Antje Wulf:
The Realator: how to construct reality.
In Rita V Rodríguez: ECAI’94 Workshop W12 Spatial and temporal reasoning, 19-26, Amsterdam 1994
1993
Kai Zimmermann, Christian Freksa:
Qualitatives räumliches Schließen mit Wissen über Richtungen, Entfernungen und Pfade.
KI 7 (4): 21-28 (1993)
John Yen, Piero P. Bonissone, Didier Dubois, Christian Freksa, Ramón López de Mántaras, Enrique H. Ruspini, Lotfi A. Zadeh:
Fuzzy Logic and AI.
IJCAI 1993: 1673-1676
Wolfgang H Zangemeister, Steffen Egner, Fritz Dannheim, Christian Freksa:
Short-term adaptation of search-scan- & reading-path in patients with stroke-related visual field defects.
Intern. Congr. on stroke rehabilitation, Berlin, 1993
Christian Freksa, Ralf Röhrig:
Dimensions of qualitative spatial reasoning.
In Nuria Piera Carreté, Madan G Singh: Qualitative reasoning and decision technologies, 483-492, CIMNE, Barcelona 1993
Kai Zimmermann, Christian Freksa:
Enhancing spatial reasoning by the concept of motion.
In Aaron Sloman, David Hogg, Glyn Humphreys, Allan Ramsay: Prospects for Artificial Intelligence, 140-147, IOS-Press, Amsterdam 1993
1992
Christian Freksa:
Temporal Reasoning Based on Semi-Intervals.
Artif. Intell. 54 (1): 199-227 (1992)
Christian Freksa:
Über den Unterschied zwischen logik-basierten und logischen Ansätzen zur Wissensrepräsentation.
KI 6 (3): 95-98 (1992)
Christian Freksa:
Using Orientation Information for Qualitative Spatial Reasoning.
Spatio-Temporal Reasoning 1992: 162-178
Christian Freksa, Kai Zimmermann:
On the utilization of spatial structures for cognitively plausible and efficient reasoning.
Proc. SMC’92 – 1992 IEEE Intern. Conf. Systems Man and Cybernetics, 261-266, Chicago 1992
1991
Christian Freksa:
Conceptual neighborhood and its role in temporal and spatial reasoning.
In Madan G Singh, Louise Travé-Massuyès: Decision Support Systems and Qualitative Reasoning, 181-187, North-Holland, Amsterdam 1991
Christian Freksa:
Qualitative spatial reasoning.
In David M Mark, Andrew U Frank: Cognitive and linguistic aspects of geographic space, 361-372, Kluwer, Dordrecht, 1991
1990
Christian Freksa, Christopher Habel:
Warum interessiert sich die Kognitionsforschung für die Darstellung räumlichen Wissens? Repräsentation und Verarbeitung räumlichen Wissens 1990: 1-15
Christian Freksa, Christopher Habel:
Repräsentation und Verarbeitung räumlichen Wissens.
Informatik-Fachberichte 245, Springer 1990, ISBN 3-540-52758-3 [contents]
Petra Bräunling, Christian Freksa, Kai Zimmermann:
The SpaceGarden bibliography.
In Christian Freksa, Christopher Habel: Repräsentation und Verarbeitung räumlichen Wissens, Informatik-Fachberichte 245, 267-353, Springer, Berlin 1990
Christian Freksa, Petra Bräunling, Kai Zimmermann:
The SpaceGarden interface for an interdisciplinary bibliography system.
Report, Institut für Informatik, Technische Universität München 1990
1989
Christian Freksa:
Wissensdarstellung und Kognitionsforschung.
it - Informationstechnik 31(2): 134-140 (1989)
Wilfried Brauer, Christian Freksa:
Wissensbasierte Systeme, 3. Internationaler GI-Kongress, München, 16./17. Oktober 1989, Proceedings.
Informatik-Fachberichte 227, Springer 1989, ISBN 3-540-51838-X [contents]
Wilfried Brauer, Christian Freksa, and the AI/Cognition Group:
Connectionist approaches to the description of spatial knowledge.
Report FKI-98-89, TU München 1989
1988
Christian Freksa:
Mit welchen Themen soll sich die KI auseinandersetzen?
GWAI 1988: 327-333
Christian Freksa, Daniel Hernández, Matthias Marcinowski, Jürgen Schmidhuber:
Sprachartige Beschreibung von Objekten und räumlichen Gegebenheiten in einem konnektionistischen System.Skizze eines Forschungsprojektes.
In Christoph Lischka, Jörg Kindermann: Workshop Konnektionismus, GMD Berichte, St. Augustin 1988
Ulrich Furbach, Christian Freksa, Gerhard Dirlich:
Wissensrepräsentation in künstlichen symbolverarbeitenden Systemen.
In Heinz Mandl, Hans Spada: Wissenspsychologie, 505-528, Psychologie Verlags Union, München 1988
1987
Christian Freksa:
Spezielle Sektion: Kognition - Wissensstrukturen beim Aufgabenlösen.
GWAI1987: 277
1986
Nur Erol, Christian Freksa:
An Approach to Structuring and Formalizing Knowledge for a Design Support System.
AIMSA 1986: 271-279
Christian Freksa:
Cognitive Science - Eine Standortbestimmung.
Wissensarten und ihre Darstellung 1986: 1-12
Christian Freksa:
Intrinsische vs. extrinsische Repräsentation zum Aufgabenlösen oder die Verwandlung von Wasser in Wein.
Wissensarten und ihre Darstellung 1986: 155-165
Gerhard Dirlich, Christian Freksa, Uta Schwatlo, Klaus Wimmer:
Kognitive Aspekte der Mensch-Computer-Interaktion, Workshop, München, 12.-13. April 1984. Informatik-Fachberichte 120, Springer1986, ISBN 3-540-16450-2 [contents]
Christian Freksa:
Knowledge representation for interactive aircraft design.
In Thomas Bernold: Expert systems and knowledge engineering, 221-230, North-Holland, Amsterdam 1986
1985
Gerhard Dirlich, Ulrich Furbach, Christian Freksa:
Aspekte der Wissensrepräsentation in künstlichen Systemen.
In Heinz Mandl, Peter Michael Fischer: Lernen im Dialog mit dem Computer, 121-130. Urban & Schwarzenberg, München 1985
Christian Freksa, Ulrich Furbach, Gerhard Dirlich:
Cognition and Representation.
In Joachim Laubsch: GWAI-84. 8th German Workshop on Artificial Intelligence, 119-144, Springer, Berlin 1985
1984
Ulrich Furbach, Gerhard Dirlich, Christian Freksa:
Towards a Theory of Knowledge Representation Systems.
AIMSA 1984: 77-84
Christian Freksa, Ulrich Furbach, Gerhard Dirlich:
Cognition and Representation - An Overview of Knowledge Reprensentation Issues in Cognitive Science.
GWAI 1984: 119-144
Gerhard Dirlich, Helmut von Benda, Christian Freksa, Ulrich Furbach, Albrecht Müller, Klaus Wimmer:
Computerunterstützte Planung von Ferienreisen ein fiktiven Beispiel.
Kognitive Aspekte der Mensch-Computer-Interaktion 1984: 22-36
Peter Haddawy, Christian Freksa:
A description of knowledge representation features for a design support system.
Report ATP-29-V-84, Forschungsgruppe Künstliche Intelligenz, Institut für Informatik, Technische Universität München 1984
1983
Gerhard Dirlich, Christian Freksa, Ulrich Furbach:
A central problem in representing human knowledge in artificial systems: the transformation of intrinsic into extrinsic representations.
Proc. 5th Cognitive Science Conference, Session #6, 7-11, Rochester 1983
Wolfgang Bibel, Maurice Bruynooghe, Christian Freksa, Peter Haddawy, M Moreau:
An overview of formalisms, issues, languages, and systems for the representation of knowledge.
Report ATP-22-XII-83, Institut für Informatik, Technische Universität München 1983
1982
Christian Freksa, Ramon López de Mántaras:
An adaptive computer system for linguistic categorization of "soft" observations in expert systems and in the social sciences.
Proc. 2nd World Conf. on Mathematics at the service of man, Las Palmas 1982
Christian Freksa:
Linguistic description of human judgments in expert systems and in the ‘soft’ sciences.
In Madan M Gupta, Elie Sanchez: Approximate reasoning in decision analysis, 297-305, North-Holland, Amsterdam 1982
Christian Freksa:
FUZZY.
In Avron Barr, Edward A Feigenbaum: The Handbook of Artificial Intelligence, vol. 2, Heuristech Press, Stanford 1982
1981
Ramon López de Mántaras, Christian Freksa, Josep Aguilar-Martín:
Algorisme d´adaptació recursiva de funcions de possibilitat per a l´aprenentatge de la significació de conceptes imprecisos.
Convencion de Informatica Latina, 250-257, Barcelona 1981
Christian Freksa:
Linguistic pattern characterization and analysis.
Ph.D. thesis, Department of Electrical Engineering and Computer Sciences, University of California, Berkeley 1981
1980
Christian Freksa:
Communication about visual patterns by means of fuzzy characterizations.
XXIInd Intern. Congress of Psychology, Leipzig 1980
Christian Freksa:
L-FUZZY -- an AI language with linguistic modification of patterns.
ERL Memo No. UCB/ERL M80/10,Electronics Research Laboratory, University of California, Berkeley 1980
1979
Lawrence W Stark, Steven Ellis, HiromitsuInoue, Christian Freksa, ZiporaPortnoy, JoshuaZeevi:
Cognitive models direct scanpath eye movements: evidence obtained by means of computer processing of perceptual scanpath eye movements.
XII Intern. Conference on Medical & Biological Engineering, Jerusalem 1979
1978
Christian Freksa:
The future of AI and its impact on society.
SIGART 67, 7-9 (1978)
1976
Christian Friedrich-Freksa:
SOMNIA -- Design and development of an interactive on-line data management system for biomedical applications.
M.S. thesis, Department of Electrical Engineering & Computer Sciences, University of California, Berkeley 1976
1973
Gerhard Dirlich, Christian Friedrich-Freksa, Hartmut Schulz:
A time-dependent model of the sleep EEG.
In Werner P Koella, P Levin: Sleep, 253-257, Karger, Basel 1973
Wolfgang Probst, Hartmut Schulz, Gerhard Dirlich, Heidi Schuh, Christian Friedrich-Freksa:
On-line classification of sleep stages with a lab computer.
In Uros J Jovanovic: The Nature of Sleep, 9-12, Gustav Fischer Verlag, Stuttgart 1973