We propose novel AI-empowered chat bots for learning as conversation where a user does not read a passage but gains information and knowledge through conversation with a teacher bot. Our information-acquisition-oriented dialogue system employs a novel adaptation of reinforced self-play so that the system can be transferred to various domains without in-domain dialogue data, and can carry out conversations both informative and attentive to users. Our extensive subjective and objective evaluations on three large public data corpora demonstrate the effectiveness of our system to deliver knowledge-intensive and attentive conversations and help end users substantially gain knowledge without reading passages.

Learning as Conversation: Dialogue Systems Reinforced for Information Acquisition

Fast and Light-Weight Answer Text Retrieval in Dialogue Systems

Explaining neural network models is important for increasing their trustworthiness in real-world applications. Most existing methods generate post-hoc explanations for neural network models by identifying individual feature attributions or detecting interactions between adjacent features. However, for models with text pairs as inputs (e.g., paraphrase identification), existing methods are not sufficient to capture feature interactions between two texts and their simple extension of computing all word-pair interactions between two texts is computationally inefficient. In this work, we propose the Group Mask (GMASK) method to implicitly detect word correlations by grouping correlated words from the input text pair together and measure their contribution to the corresponding NLP tasks as a whole. The proposed method is evaluated with two different model architectures (decomposable attention model and BERT) across four datasets, including natural language inference and paraphrase identification tasks. Experiments show the effectiveness of GMASK in providing faithful explanations to these models.


Explaining Neural Network Predictions on Sentence Pairs via Learning Word-Group Masks

7E: Dialogue and Interactive Systems 2

technical paper

## Welcome to NAACL 2022!
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NAACL 2022

2022 Annual Conference of the North American Chapter of the Association for Computational Linguistics

6G: Industry/Demo Poster Session

poster

**Session Chair: ** Tiancheng Zhao

11B-Oral: Interpretability and Analysis of Models for NLP

2021 Annual Conference of the North American Chapter of the Association for Computational Linguistics.

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Learning as Conversation: Dialogue Systems Reinforced for Information Acquisition

Fast and Light-Weight Answer Text Retrieval in Dialogue Systems

Explaining Neural Network Predictions on Sentence Pairs via Learning Word-Group Masks

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