Search Results for author: Nikaash Puri

Found 10 papers, 5 papers with code

SARC: Soft Actor Retrospective Critic

1 code implementation28 Jun 2023 Sukriti Verma, Ayush Chopra, Jayakumar Subramanian, Mausoom Sarkar, Nikaash Puri, Piyush Gupta, Balaji Krishnamurthy

The two-time scale nature of SAC, which is an actor-critic algorithm, is characterised by the fact that the critic estimate has not converged for the actor at any given time, but since the critic learns faster than the actor, it ensures eventual consistency between the two.

HyHTM: Hyperbolic Geometry based Hierarchical Topic Models

1 code implementation16 May 2023 Simra Shahid, Tanay Anand, Nikitha Srikanth, Sumit Bhatia, Balaji Krishnamurthy, Nikaash Puri

We present HyHTM - a Hyperbolic geometry based Hierarchical Topic Models - that addresses these limitations by incorporating hierarchical information from hyperbolic geometry to explicitly model hierarchies in topic models.

Topic Models

Video2Skill: Adapting Events in Demonstration Videos to Skills in an Environment using Cyclic MDP Homomorphisms

no code implementations8 Sep 2021 Sumedh A Sontakke, Sumegh Roychowdhury, Mausoom Sarkar, Nikaash Puri, Balaji Krishnamurthy, Laurent Itti

Humans excel at learning long-horizon tasks from demonstrations augmented with textual commentary, as evidenced by the burgeoning popularity of tutorial videos online.

Decision Making

Information-theoretic Evolution of Model Agnostic Global Explanations

no code implementations14 May 2021 Sukriti Verma, Nikaash Puri, Piyush Gupta, Balaji Krishnamurthy

Our approach builds on top of existing local model explanation methods to extract conditions important for explaining model behavior for specific instances followed by an evolutionary algorithm that optimizes an information theory based fitness function to construct rules that explain global model behavior.

Marketing

MixBoost: Synthetic Oversampling with Boosted Mixup for Handling Extreme Imbalance

no code implementations3 Sep 2020 Anubha Kabra, Ayush Chopra, Nikaash Puri, Pinkesh Badjatiya, Sukriti Verma, Piyush Gupta, Balaji K

Training a classification model on a dataset where the instances of one class outnumber those of the other class is a challenging problem.

Data Augmentation Fraud Detection +1

Explain Your Move: Understanding Agent Actions Using Focused Feature Saliency

1 code implementation ICLR 2020 Piyush Gupta, Nikaash Puri, Sukriti Verma, Dhruv Kayastha, Shripad Deshmukh, Balaji Krishnamurthy, Sameer Singh

We show through illustrative examples (Chess, Atari, Go), human studies (Chess), and automated evaluation methods (Chess) that our approach generates saliency maps that are more interpretable for humans than existing approaches.

Atari Games Board Games +2

Explain Your Move: Understanding Agent Actions Using Specific and Relevant Feature Attribution

2 code implementations23 Dec 2019 Nikaash Puri, Sukriti Verma, Piyush Gupta, Dhruv Kayastha, Shripad Deshmukh, Balaji Krishnamurthy, Sameer Singh

We show through illustrative examples (Chess, Atari, Go), human studies (Chess), and automated evaluation methods (Chess) that SARFA generates saliency maps that are more interpretable for humans than existing approaches.

Atari Games Board Games +2

MAGIX: Model Agnostic Globally Interpretable Explanations

no code implementations22 Jun 2017 Nikaash Puri, Piyush Gupta, Pratiksha Agarwal, Sukriti Verma, Balaji Krishnamurthy

Explaining the behavior of a black box machine learning model at the instance level is useful for building trust.

BIG-bench Machine Learning Marketing

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