Search Results for author: Vignesh Narayanan

Found 14 papers, 2 papers with code

Evaluating Chatbots to Promote Users' Trust -- Practices and Open Problems

no code implementations9 Sep 2023 Biplav Srivastava, Kausik Lakkaraju, Tarmo Koppel, Vignesh Narayanan, Ashish Kundu, Sachindra Joshi

Chatbots, the common moniker for collaborative assistants, are Artificial Intelligence (AI) software that enables people to naturally interact with them to get tasks done.

Chatbot Language Modelling +1

A Planning Ontology to Represent and Exploit Planning Knowledge for Performance Efficiency

no code implementations25 Jul 2023 Bharath Muppasani, Vishal Pallagani, Biplav Srivastava, Raghava Mutharaju, Michael N. Huhns, Vignesh Narayanan

Ontologies are known for their ability to organize rich metadata, support the identification of novel insights via semantic queries, and promote reuse.

IERL: Interpretable Ensemble Representation Learning -- Combining CrowdSourced Knowledge and Distributed Semantic Representations

no code implementations24 Jun 2023 Yuxin Zi, Kaushik Roy, Vignesh Narayanan, Manas Gaur, Amit Sheth

Crowdsourced and expert-curated knowledge graphs such as ConceptNet are designed to capture the meaning of words from a compact set of well-defined contexts.

Ensemble Learning Hallucination +3

Knowledge-Infused Self Attention Transformers

no code implementations23 Jun 2023 Kaushik Roy, Yuxin Zi, Vignesh Narayanan, Manas Gaur, Amit Sheth

However, the ad-hoc nature of existing methods makes it difficult to properly analyze the effects of knowledge infusion on the many moving parts or components of a transformer.

Knowledge Graphs Language Modelling

Process Knowledge-infused Learning for Clinician-friendly Explanations

no code implementations16 Jun 2023 Kaushik Roy, Yuxin Zi, Manas Gaur, Jinendra Malekar, Qi Zhang, Vignesh Narayanan, Amit Sheth

In this study, we introduce Process Knowledge-infused Learning (PK-iL), a new learning paradigm that layers clinical process knowledge structures on language model outputs, enabling clinician-friendly explanations of the underlying language model predictions.

Explainable Artificial Intelligence (XAI) Language Modelling

Cook-Gen: Robust Generative Modeling of Cooking Actions from Recipes

1 code implementation1 Jun 2023 Revathy Venkataramanan, Kaushik Roy, Kanak Raj, Renjith Prasad, Yuxin Zi, Vignesh Narayanan, Amit Sheth

In this study, we explore the use of generative AI methods to extend current food computation models, primarily involving the analysis of nutrition and ingredients, to also incorporate cooking actions (e. g., add salt, fry the meat, boil the vegetables, etc.).

Food recommendation Nutrition +1

Knowledge Graph Guided Semantic Evaluation of Language Models For User Trust

no code implementations8 May 2023 Kaushik Roy, Tarun Garg, Vedant Palit, Yuxin Zi, Vignesh Narayanan, Amit Sheth

However, they do not ascribe object and concept-level meaning and semantics to the learned stochastic patterns such as those described in knowledge graphs.

Knowledge Graphs Language Modelling

On Safe and Usable Chatbots for Promoting Voter Participation

no code implementations16 Dec 2022 Bharath Muppasani, Vishal Pallagani, Kausik Lakkaraju, Shuge Lei, Biplav Srivastava, Brett Robertson, Andrea Hickerson, Vignesh Narayanan

Chatbots, or bots for short, are multi-modal collaborative assistants that can help people complete useful tasks.

KSAT: Knowledge-infused Self Attention Transformer -- Integrating Multiple Domain-Specific Contexts

no code implementations9 Oct 2022 Kaushik Roy, Yuxin Zi, Vignesh Narayanan, Manas Gaur, Amit Sheth

Domain-specific language understanding requires integrating multiple pieces of relevant contextual information.

Specificity

Interpretable Design of Reservoir Computing Networks using Realization Theory

no code implementations13 Dec 2021 Wei Miao, Vignesh Narayanan, Jr-Shin Li

The reservoir computing networks (RCNs) have been successfully employed as a tool in learning and complex decision-making tasks.

Decision Making

Learning to Control using Image Feedback

no code implementations28 Oct 2021 Krishnan Raghavan, Vignesh Narayanan, Jagannathan Saraangapani

Learning to control complex systems using non-traditional feedback, e. g., in the form of snapshot images, is an important task encountered in diverse domains such as robotics, neuroscience, and biology (cellular systems).

Cooperative Deep $Q$-learning Framework for Environments Providing Image Feedback

no code implementations28 Oct 2021 Krishnan Raghavan, Vignesh Narayanan, Jagannathan Sarangapani

In this paper, we address two key challenges in deep reinforcement learning setting, sample inefficiency and slow learning, with a dual NN-driven learning approach.

Q-Learning

Plan or not: Remote Human-robot Teaming with Incomplete Task Information

no code implementations9 Dec 2014 Vignesh Narayanan, Yu Zhang, Nathaniel Mendoza, Subbarao Kambhampati

While information asymmetry can be desirable sometimes, it may also lead to the robot choosing improper actions that negatively influence the teaming performance.

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