Search Results for author: Parikshit Bansal

Found 5 papers, 1 papers with code

Understanding the Training Speedup from Sampling with Approximate Losses

no code implementations10 Feb 2024 Rudrajit Das, Xi Chen, Bertram Ieong, Parikshit Bansal, Sujay Sanghavi

In this work, we focus on the greedy approach of selecting samples with large \textit{approximate losses} instead of exact losses in order to reduce the selection overhead.

Large Language Models as Annotators: Enhancing Generalization of NLP Models at Minimal Cost

no code implementations27 Jun 2023 Parikshit Bansal, Amit Sharma

Instead, we propose a sampling strategy based on the difference in prediction scores between the base model and the finetuned NLP model, utilizing the fact that most NLP models are finetuned from a base model.

Active Learning Semantic Similarity +1

Controlling Learned Effects to Reduce Spurious Correlations in Text Classifiers

no code implementations26 May 2023 Parikshit Bansal, Amit Sharma

Therefore, using methods from the causal inference literature, we propose an algorithm to regularize the learnt effect of the features on the model's prediction to the estimated effect of feature on label.

Causal Inference

Using Interventions to Improve Out-of-Distribution Generalization of Text-Matching Recommendation Systems

no code implementations7 Oct 2022 Parikshit Bansal, Yashoteja Prabhu, Emre Kiciman, Amit Sharma

To explain this generalization failure, we consider an intervention-based importance metric, which shows that a fine-tuned model captures spurious correlations and fails to learn the causal features that determine the relevance between any two text inputs.

Language Modelling Out-of-Distribution Generalization +3

Missing Value Imputation on Multidimensional Time Series

1 code implementation2 Mar 2021 Parikshit Bansal, Prathamesh Deshpande, Sunita Sarawagi

Missing values are commonplace in decision support platforms that aggregate data over long time stretches from disparate sources, and reliable data analytics calls for careful handling of missing data.

Imputation Time Series +1

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