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Saurabh Tiwary

5 accepted papers

2024

Interpretable User Satisfaction Estimation for Conversational Systems with Large Language Models

ACL 2024long

Accurate and interpretable user satisfaction estimation (USE) is critical for understanding, evaluating, and continuously improving conversational systems. Users express their satisfaction or dissatisfaction with diverse conversational patterns in both general-purpose (ChatGPT and Bing Copilot) and…

2022

Invariant Language Modeling

EMNLP 2022main

Modern pretrained language models are critical components of NLP pipelines. Yet, they suffer from spurious correlations, poor out-of-domain generalization, and biases.Inspired by recent progress in causal machine learning, in particular the invariant risk minimization (IRM) paradigm, we propose inva…

2022

Pretraining Text Encoders with Adversarial Mixture of Training Signal Generators

ICLR 2022poster

We present a new framework AMOS that pretrains text encoders with an Adversarial learning curriculum via a Mixture Of Signals from multiple auxiliary generators. Following ELECTRA-style pretraining, the main encoder is trained as a discriminator to detect replaced tokens generated by auxiliary maske…

2021

COCO-LM: Correcting and Contrasting Text Sequences for Language Model Pretraining

NeurIPS 2021poster

We present a self-supervised learning framework, COCO-LM, that pretrains Language Models by COrrecting and COntrasting corrupted text sequences. Following ELECTRA-style pretraining, COCO-LM employs an auxiliary language model to corrupt text sequences, upon which it constructs two new tasks for pret…

2020

Transformer-XH: Multi-Evidence Reasoning with eXtra Hop Attention

ICLR 2020poster

Transformers have achieved new heights modeling natural language as a sequence of text tokens. However, in many real world scenarios, textual data inherently exhibits structures beyond a linear sequence such as trees and graphs; many tasks require reasoning with evidence scattered across multiple pi…

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