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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What AI Can Do for Neuroscience: Understanding How the Brain Represents Word Meanings Nora Aguirre-Celis and Risto Miikkulainen In Manuel Cebral-Loureda, Elvira G. Rincon-Flores, and Gildardo Sanchez-Ante, editors, What AI Ca... 2023

Modeling Bilingualism as a Dynamic Phenomenon in Healthy and Neurologically Affected Speakers Across the Lifespan (Commentary) Claudia Penaloza, Uli Grasemann, Risto Miikkulainen, Swathi Kiran Language Learning, ., 2023. https://doi.org/10.1111/lang.12566. 2023

Constructing Individualized Computational Models for Dementia Patients Peggy Fidelman, Uli Grasemann, Claudia Penaloza, Michael Scimeca, Yakeel T. Quiroz, Swathi Kiran, Ri... In Proceedings of the 44th Annual Meeting of the Cognitive Science Society, 2022. 2022

How the Brain Dynamically Constructs Sentence-Level Meanings From Word-Level Features Nora Aguirre-Celis and Risto Miikkulainen In Frontiers in Artificial Intelligence, 2022. 2022

From Words to Sentences and Back: Characterizing Context-dependent Meaning Representations in the Brain Nora Aguirre-Celis a.k.a. Nora E. Aguirre Sampayo PhD Thesis, Instituto Tecnologico y de Estudios Superiores de Monterrey, Monterrey, Mexico, December... 2021

Predicting language treatment response in bilingual aphasia using neural network-based patient models Uli Grasemann, Claudia Peñaloza, Maria Dekhtyar, Risto Miikkulainen, and Swathi Kiran Scientific Reports, 11(10497):1-11, 2021. 2021

Understanding the Semantic Space: How Word Meanings Dynamically Adapt in the Context of a Sentence Nora Aguirre-Celis and Risto Miikkulainen In Proceedings of the Workshop on Semantic Spaces at the Intersection of NLP, Physics, and Cognit... 2021

From Nodes to Networks: Evolving Recurrent Neural Networks Aditya Rawal, Risto Miikkulainen In H. Iba and N. Noman, editors, Deep Neural Evolution: Deep Learning with Evolutionary Computati... 2020

Characterizing the Effect of Sentence Context on Word Meanings: Mapping Brain to Behavior Nora Aguirre-Celis and Risto Miikkulainen arXiv:2007.13840, July 2020. 2020

Characterizing Dynamic Word Meaning Representations in the Brain Nora Aguirre-Celis and Risto Miikkulainen In Proceedings of the 6th Workshop on Cognitive Aspects of the Lexicon (CogALex-VI), Barcelon... 2020

Evolving Deep Neural Networks Risto Miikkulainen, Jason Liang, Elliot Meyerson, Aditya Rawal, Dan Fink, Olivier Francon, Bala Raju... In Robert Kozma, Cesare Alippi, Yoonsuck Choe, and Francesco Carlo Morabito, editors, Artificial ... 2019

BiLex: A computational approach to the effects of age of acquisition and language exposure on bilingual lexical access Claudia Peñaloza, Uli Grasemann, Maria Dekhtyar, Risto Miikkulainen, and Swathi Kiran Brain and Language, 195(104643), 2019. 2019

Data Augmentation for Deep Transfer Learning Cameron R. Wolfe and Keld T. Lundgaard , December 2019. 2019

Quantifying the Conceptual Combination Effect on Word Meanings Nora Aguirre-Celis and Risto Miikkulainen In Proceedings of the 41th Annual Meeting of the Cognitive Science Society, Montreal, CA, Ju... 2019

Combining fMRI Data and Neural Networks to Quantify Contextual Effects in the Brain Nora Aguirre-Celis and Risto Miikkulainen In Shouyi Wang, Vicky Yamamoto, Jianzhong Su, Yang Yang, Eric Jones, Leon Iasemidis, Tom Mitchell, e... 2018

Evolving Artificial Language Through Evolutionary Reinforcement Learning Xun Li and Risto Miikkulainen In Proceedings of the Fifteenth International Conference on the Synthesis and Simulation of Livin... 2016

The Evolution of Language Groups among Cooperating Digital Predators Patrick Haley Technical Report HR-16-06, Department of Computer Science, The University of Texas at Austin, 2016. 2016

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

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

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

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

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

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

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

Associating Unseen Events: Semantically Mediated Formation of Episodic Associations Yaron Silberman, Risto Miikkulainen, and Shlomo Bentin Psychological Science, 16:161-166, 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

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

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

Characteristics of Forming Episodic Associations Between Words Yaron Silberman PhD Thesis, The Hebrew University of Jerusalem, Israel, 2004. 2004

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

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

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

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

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

Parsing Embedded Clauses with Distributed Neural Networks Risto Miikkulainen and Dennis Bijwaard In Proceedings of the Twelfth National Conference on Artificial Intelligence, 858-864, Januar... 1994

Parsing Embedded Clauses with Distributed Neural Networks Risto Miikkulainen and Dennis Bijwaard In Proceedings of the Twelfth National Conference on Artificial Intelligence, 858-864, Januar... 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

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

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

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

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

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

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

Distributed Connectionist Knowledge Representations in Script/Goal-Based Story Understanding Geunbae Lee and Risto Miikkulainen In Proceedings of Seoul International Conference on Natural Language Processing (SICONLP-90),... 1990

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Nora E. Aguirre-Celis Ph.D. Alumni naguirre [at] cs utexas edu
Shlomo Bentin Former 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 peggyf [at] cs utexas edu
Uli Grasemann Postdoctoral Alumni uli [at] cs utexas edu
Patrick Haley Undergraduate Alumni
Ralph E. Hoffman Former Collaborator ralph hoffman [at] yale edu
Kay E. Holekamp Former Collaborator holekamp [at] msu edu
Daniel L. James Undergraduate Alumni
Swathi Kiran Collaborator kirans [at] bu edu
Marshall R. Mayberry III Ph.D. Alumni marty mayberry [at] gmail com
Risto Miikkulainen Faculty risto [at] cs utexas edu
Claudia Penaloza Collaborator claudia_penaloza [at] ub 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
Cameron R. Wolfe Undergraduate Alumni wolfe cameron [at] 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
BiLex Download at GitHub.

A self-organizing map model of bilingual aphasia. ...

2021

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