Artificial Intelligence

Combining reasoning with machine learning methods for AI tasks and applications

Friday, October 05, 2018, 11:00am - 12:00pm PDTiCal
10th floor large conference room (1014)
This event is open to the public.
AI Seminar
Chitta Baral, Arizona State University
Reasoning and learning being two main aspects of “Intelligence” our research group has been working on the combined use of both in various AI tasks and applications. In this talk I will discuss some of our work on this with respect to image understanding, finding deep connection between a set of images, addressing various natural language understanding (NLU) challenges and tasks (Winograd, babi, grid puzzles and arithmetic problems) and inferencing drug interactions from Pubmed text.  I will also discuss what we learned about some of the issues and questions that come up when trying to combine reasoning and machinelearning. These include: What kind of knowledge is important for various NLU tasks? How should this knowledge be expressed? Where to get these knowledge from? How much of it and which kinds should be written manually and which kinds are to be obtained automatically? From where to obtain knowledge automatically? What kind of knowledge can we get from reading (text)? How to get them? How best to translate natural language text to a knowledge representation formalism? What kinds of machine learning algorithms will help in the various kinds of knowledge acquisition?
Biography: Chitta Baral is a Professor in Computer Science at the Arizona State University with research experience is in various sub-fields of Artificial Intelligence (AI) such as Knowledge Representation and Reasoning,  Natural Language Understanding, and Image Understanding; and their applications to Molecular Biology, Health Informatics and Robotics. Chitta is the author of the book "Knowledge Representation, Reasoning and Declarative Problem Solving" published by Cambridge University Press. Chitta's research has been funded by various US federal agencies including NSF, NASA, ONR and IARPA. Chitta has been an Associate Editor of Journal of AI Research and is currently an associate Editor of the AI Journal. Chitta has been the Program Co-Chair  (2014) and general chair (2016) for the Knowledge Representation and Reasoning (KR&R) Conference and is the current President of KR Inc. Chitta has published significantly in major AI journals and conferences and has graduated many Ph.Ds in the field of AI. He has given invited talks at major AI conferences including AAAI and KR&R. Some of the AI packages developed by Chitta and his students include NL2KR, a platform to create systems that can translate natural language to targeted formal and logical languages; Kparser, a semantic knowledge parser for natural language text; and DeepQA, a system to reason about biological pathways. In recent years, Chitta's main research agenda has been to show that machine learning and reasoning needs to be combined to develop robust general AI systems. 
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