Papers by Zhucheng Tu
Open-Domain Question Answering Goes Conversational via Question Rewriting (2021.naacl-main)
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Raviteja Anantha, Svitlana Vakulenko, Zhucheng Tu, Shayne Longpre, Stephen Pulman, Srinivas Chappidi
| Challenge: | Existing large-scale benchmarks for conversational QA limit the topic of conversation to the content of a single document. |
| Approach: | They propose a dataset for Question Rewriting in Conversational Context (QReCC) the dataset contains 14K conversations with 80K question-answer pairs. |
| Outcome: | The proposed approach shows that the first baseline for the QReCC dataset is 19.10, compared to the human upper bound of 75.45, indicating the difficulty of the setup and a large room for improvement. |
An Exploration of Data Augmentation and Sampling Techniques for Domain-Agnostic Question Answering (D19-58)
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| Challenge: | XLNet model is domain-agnostic for the MRQA 2019 Shared Task . a negative sampling technique is particularly effective for datasets that include unanswerable questions . |
| Approach: | They develop a domain-agnostic question answering model for the MRQA 2019 Shared Task . they use large pre-trained language models, various data sampling strategies and query and context paraphrases generated by back-translation . |
| Outcome: | The proposed model achieves second best Exact Match and F1 in the MRQA leaderboard competition. |
CNNs for NLP in the Browser: Client-Side Deployment and Visualization Opportunities (N18-5)
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| Challenge: | a JavaScript implementation of a convolutional neural network performs feedforward inference completely in the browser. |
| Approach: | They propose a JavaScript implementation that performs feedforward inference completely in the browser. |
| Outcome: | The proposed model performs feedforward inference completely in the browser without server requests . the proposed model is useful for applications with stringent latency requirements or low connectivity . |
Pay-Per-Request Deployment of Neural Network Models Using Serverless Architectures (N18-5)
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| Challenge: | Using Amazon’s Lambda service for feedforward evaluation and DynamoDB for word embeddings, we demonstrate a serverless deployment of neural networks for NLP applications. |
| Approach: | They propose a pay-per-request pricing model for neural network deployment in NLP applications using Amazon’s Lambda service for feedforward evaluation and DynamoDB for storing word embeddings. |
| Outcome: | The proposed architecture is scalable and inexpensive. |