Natural Language Processing (Cognitive)
Our research in natural language processing focuses on cognitive modeling. In particular, it aims at bridging the gap between subsymbolic representations and complex high-level behavior. The models are based on subsymbolic mechanisms but aim at explaining how people learn word meanings, organize their lexicon, understand sentences and stories, and answer questions about them. An important aspect of this research is also understanding linguistic disorders, and most recently, the evolution of language.
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A Computational Account of Bilingual Aphasia Rehabilitation Swathi Kiran, Uli Grasemann, Chaleece Sandberg, and Risto Miikkulainen Bilingualism: Language and Cognition, 16:325-342, 2013. 2013

Modeling Acute and Compensated Language Disturbance in Schizophrenia Uli Grasemann, Ralph Hoffman and Risto Miikkulainen In Proceedings of the 33rd Annual Meeting of the Cognitive Science Society, 2011. 2011

Using Computational Patients to Evaluate Illness Mechanisms in Schizophrenia Ralph E. Hoffman, Uli Grasemann, Ralitza Gueorguieva, Donald Quinlan, Douglas Lane, and Risto Miikku... Biological Psychiatry, 69:997--1005, 2011. 2011

A Computational Model of Language Pathology in Schizophrenia Uli Grasemann PhD Thesis, Department of Computer Science, The University of Texas at Austin, Austin, TX, December ... 2010

The Necessity of Separating Control and Logic When Grounding Language Using Neuroevolution Yonatan Bisk Technical Report HR-09-05, Department of Computer Sciences, The University of Texas at Austin, 2009. 2009

Modeling the Bilingual Lexicon of an Individual Subject Risto Miikkulainen and Swathi Kiran In Proceedings of the Workshop on Self-Organizing Maps (WSOM'09), Berlin, 2009. Springer. 2009

Incremental Nonmonotonic Sentence Interpretation through Semantic Self-Organization Marshall R. Mayberry III and Risto Miikkulainen Technical Report AI08-12, Department of Computer Sciences, University of Texas at Austin, Austin, TX... 2008

A Subsymbolic Model of Language Pathology in Schizophrenia Uli Grasemann, Risto Miikkulainen, Ralph Hoffman In Proceedings of the 29th Annual Conference of the Cognitive Science Society, 311-316, Hill... 2007

Semantic Boost on Episodic Associations: An Empirically Based Computational Model Yaron Silberman, Shlomo Bentin, and Risto Miikkulainen Cognitive Science, 31:645--671, 2007. 2007

Grounding Language in Descriptions of Scenes Paul Williams and Risto Miikkulainen In Proceedings of the 28th Annual Meeting of the Cognitive Science Society, 2006. 2006

Learning Visual Scene Descriptions: An Approach to Symbol Grounding Paul Williams Technical Report TR-06-01, Department of Computer Science, The University of Texas at Austin, 2005. 2005

Broad-Coverage Parsing with Neural Networks Marshall R. Mayberry III and Risto Miikkulainen Neural Processing Letters, 21:121--143, 2005. 2005

A Subsymbolic Model of Complex Story Understanding Peggy Fidelman, Risto Miikkulainen and Ralph Hoffman In Proceedings of the 27th Annual Meeting of the Cognitive Science Society, 2005. 2005

Incremental Nonmonotonic Parsing through SemanticSelf-Organization Marshall R. Mayberry III and Risto Miikkulainen In Proceedings of the 25th Annual Conference of the Cognitive Science Society, 2003. 2003

Incremental Nonmonotonic Parsing through Semantic Self-Organization Marshall R. Mayberry III PhD Thesis, Department of Computer Sciences, the University of Texas at Austin, Austin, TX, 2003. Te... 2003

Text and Discourse Understanding: The DISCERN System Risto Miikkulainen In R. Dale, H. Moisl and H. Somers, editors, A Handbook of Natural Language Processing: Technique... 2002

Constrained Emergence Of Universals And Variation In Syllable Systems Melissa A. Redford, Chun Chi Chen, and Risto Miikkulainen Language and Speech:27-56, 2001. Manuscript. 2001

Abrupt And Gradual Sound Change In An Expanding Lexicon Melissa A. Redford and Risto Miikkulainen Technical Report AI01-289, Department of Computer Sciences, The University of Texas at Austin, 2001. 2001

Semantic Effect On Episodic Associations Yaron Silberman, Risto Miikkulainen, and Shlomo Bentin In Proceedings of the 23rd Annual Conference of the Cognitive Science Society, 934-939, 2001... 2001

From Word Stream To Gestalt: A Direct Semantic Parse For Complex Sentences Bobby D. Bryant and Risto Miikkulainen Technical Report AI98-274, AI Lab, University of Texas at Austin, Austin, TX, June 2001. 2001

SARDSRN: A Neural Network Shift-Reduce Parser Marshall R. Mayberry III and Risto Miikkulainen In Proceedings of the 16th Annual International Joint Conference on Artificial Intelligence (IJCA... 1999

Using a Sequential SOM to Parse Long-Term Dependencies Marshall R. Mayberry III and Risto Miikkulainen In Martin Hahn and Scott C. Stoness, editors, Proceedings of the 21st Annual Conference of the Co... 1999

Disambiguation And Grammar As Emergent Soft Constraints Risto Miikkulainen and Marshall R. Mayberry III In Brian J. MacWhinney, editors, Workshop on Thought and Language, 20-31, Iizuka, Japan, 1999... 1999

Modeling The Emergence Of Syllable Systems Melissa A. Redford, Chun Chi Chen, and Risto Miikkulainen In Morton Ann Gernsbacher and Sharon J. Derry, editors, Proceedings of the 20th Annual Conference... 1998

Natural Language Processing With Subsymbolic Neural Networks Risto Miikkulainen In Antony Browne, editors, Neural Network Perspectives on Cognition and Adaptive Robotics, 12... 1997

Dyslexic and Category-Specific Aphasic Impairments in a Self-Organizing Feature Map Model of the Lexicon Risto Miikkulainen Brain and Language:334-366, 1997. 1997

Subsymbolic Case-Role Analysis Of Sentences With Embedded Clauses Risto Miikkulainen Cognitive Science, 20:47-73, 1996. 1996

Visualizing High-Dimensional Structure With The Incremental Grid Growing Neural Network Justine Blackmore and Risto Miikkulainen In Armand Prieditis and Stuart Russell, editors, Machine Learning: Proceedings of the 12th Annual... 1995

Script-Based Inference And Memory Retrieval In Subsymbolic Story Processing Risto Miikkulainen Applied Intelligence:137-163, 1995. 1995

Visualizing High-Dimensional Structure with the Incremental Grid Growing Network Justine Blackmore Masters Thesis, Department of Computer Sciences, The University of Texas at Austin, Austin, TX, 1995... 1995

SARDNET: A Self-Organizing Feature Map For Sequences Daniel L. James and Risto Miikkulainen In G. Tesauro, D. S. Touretzky, and T. K. Leen, editors, Advances in Neural Information Processin... 1995

A Connectionist Corpus-Based Approach to the Building of Word Representations Rupert L. Tang Technical Report HR-94-01, Department of Computer Science, The University of Texas at Austin, 1994. 1994

Lexical Disambiguation Based on Distributed Representations of Context Frequency Marshall R. Mayberry III and Risto Miikkulainen In Ashwin Ram and Kurt Eiselt, editors, Proceedings of the 16th Annual Conference of the Cognitiv... 1994

Verb Inflections in German Child Language: A Connectionist Account Gert Westermann and Risto Miikkulainen In Ashwin Ram and Kurt Eiselt, editors, Proceedings of the 16th Annual Conference of the Cognitiv... 1994

Integrated Connectionist Models: Building AI Systems on Subsymbolic Foundations Risto Miikkulainen Honavar, V., and Uhr, L., editors, Artificial Intelligence and Neural Networks: Steps Toward Prin... 1994

Multi-Level Neural Network Language Translator James A. Bednar Technical Report HR-93-01, Department of Computer Sciences, The University of Texas at Austin, 1993. 1993

Subsymbolic Natural Language Processing: An Integrated Model Of Scripts, Lexicon, And Memory Risto Miikkulainen , Cambridge, MA, 1993. MIT Press. 1993

Trace Feature Map: A Model Of Episodic Associative Memory Risto Miikkulainen Biological Cybernetics, 66:273--282, 1992. 1992

Natural Language Processing With Modular PDP Networks And Distributed Lexicon Risto Miikkulainen and Michael G. Dyer Cognitive Science, 15:343-399, 1991. 1991

DISCERN: A Distributed Artificial Neural Network Model Of Script Processing And Memory Risto Miikkulainen PhD Thesis, University of California, 1990. 334. 1990

Script Recognition With Hierarchical Feature Maps Risto Miikkulainen Connection Science, 2:83-101, 1990. 1990

A PDP Architecture For Processing Sentences With Relative Clauses Risto Miikkulainen In Proceedings of the 13th International Conference on Computational Linguistics (COLING-90),... 1990

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Nora E. Aguirre-Celis Ph.D. Student naguirre [at] cs utexas edu
Shlomo Bentin Collaborator shlomo bentin [at] huji ac il
Dennis J. A. Bijwaard Former Visitor
Yonatan Bisk Undergraduate Alumni ybisk [at] yo-tech com
Bobby D. Bryant Ph.D. Alumni bdbryant [at] cse unr edu
Chun-Chi Chen Undergraduate Alumni
Igor Farkas Postdoctoral Alumni farkas [at] fmph uniba sk
Peggy Fidelman Former Ph.D. Student
Uli Grasemann Postdoctoral Alumni uli [at] cs utexas edu
Ralph E. Hoffman Collaborator ralph hoffman [at] yale edu
Kay E. Holekamp Collaborator holekamp [at] msu edu
Daniel L. James Undergraduate Alumni
Swathi Kiran Collaborator kirans [at] bu edu
Marshall R. Mayberry III Ph.D. Alumni martym at coli dot uni-sb dot
Risto Miikkulainen Faculty risto [at] cs utexas edu
Melissa Redford Postdoctoral Alumni redford [at] cs utexas edu
Yaron Silberman Ph.D. Alumni yarons [at] alice nc huji ac il
Lappoon R. Tang Undergraduate Alumni ltang [at] utb edu
Gert Westermann Former Visitor gwestermann [at] brookes ac uk
Paul Williams Undergraduate Alumni pwilly [at] cs utexas edu
Hong Ming Yeh Former Ph.D. Student hongming [at] cs utexas edu
A Subsymbolic Model of Schizophrenic Language Uli Grasemann 2010
INSOMNet Demo and package Marshall Mayberry III 2003
MIR Sentence Processing Package The MIR Sentence Processing package contains the C source code for the MIR system, as well as a selection of scripts wi... 1998

DISLEX

This package contains the C-code and data for training and testing the DISLEX model of the lexicon, which is also par...

1994

FGREPNET The FGREPNET package contains the C-code and data for training and testing an FGREP network in developing distributed re... 1994

HFM The HFM package contains the C-code and data for training and testing the HFM memory organization and hierarchical class... 1994

PROC The PROC package contains the C-code and data for training and testing the story processing modules of the DISCERN syste... 1994

SPEC The SPEC package contains the C-code and data for training and testing the SPEC system for processing complex sentences ... 1994

DISCERN DISCERN is a large, modular neural network system for reading, paraphrasing and answering questions about stereotypical ... 1993