Papers by Jai Gupta
DSI++: Updating Transformer Memory with New Documents (2023.emnlp-main)
Copied to clipboard
Sanket Mehta, Jai Gupta, Yi Tay, Mostafa Dehghani, Vinh Tran, Jinfeng Rao, Marc Najork, Emma Strubell, Donald Metzler
| Challenge: | Differentiable Search Indices (DSIs) encode a corpus of documents and use the same model to map queries directly to relevant document identifiers. |
| Approach: | They propose a continual learning challenge for Differentiable Search Indices (DSIs) they propose to continuously index new documents while answering queries related to previously and newly indexed documents. |
| Outcome: | The proposed model stably memorizes more documents and improves the average Hits@10 by +21.1% over baselines. |
How Does Generative Retrieval Scale to Millions of Passages? (2023.emnlp-main)
Copied to clipboard
Ronak Pradeep, Kai Hui, Jai Gupta, Adam Lelkes, Honglei Zhuang, Jimmy Lin, Donald Metzler, Vinh Tran
| Challenge: | generative retrieval is a new paradigm for information retrieval, enabling a sequence-to-sequence model with a single Transformer . generative encoders have been used on small corpora, but only on large ones . |
| Approach: | They propose to encode an entire document corpus within a single Transformer . they find generative retrieval is competitive with state-of-the-art dual encoders on small corpora . |
| Outcome: | The proposed approach is competitive with state-of-the-art dual encoders on small corpora, the study finds . the proposed approach only evaluates on document corporales on the order of 100K in size . |
SEMQA: Semi-Extractive Multi-Source Question Answering (2024.naacl-long)
Copied to clipboard
| Challenge: | Recent proposed long-form question answering systems have shown promising capabilities, but attributing and verifying their generated abstractive answers can be difficult. |
| Approach: | They propose a task that summarises multiple sources in a semi-extractive fashion . they create a dataset with human-written semi-extractive answers to natural and generated questions . |
| Outcome: | The proposed task summarizes multiple sources in a semi-extractive fashion and produces fine in-line attributions by-design that are easy to verify, interpret, and evaluate. |
Dense Feature Memory Augmented Transformers for COVID-19 Vaccination Search Classification (2022.emnlp-industry)
Copied to clipboard
Jai Gupta, Yi Tay, Chaitanya Kamath, Vinh Tran, Donald Metzler, Shailesh Bavadekar, Mimi Sun, Evgeniy Gabrilovich
| Challenge: | a new method for classification of COVID-19 vaccination related search queries is proposed . the proposed method uses pretrained Transformers and dense features to generate search insights . |
| Approach: | They propose a machine learning model that detects COVID-19 vaccination related search queries . they use pretrained Transformers to consider dense features as memory tokens that the model can attend to . |
| Outcome: | The proposed model improves the Vaccine Search Insights task by +15% . the proposed model uses pretrained Transformers and traditional dense features . |
ED2LM: Encoder-Decoder to Language Model for Faster Document Re-ranking Inference (2022.findings-acl)
Copied to clipboard
Kai Hui, Honglei Zhuang, Tao Chen, Zhen Qin, Jing Lu, Dara Bahri, Ji Ma, Jai Gupta, Cicero Nogueira dos Santos, Yi Tay, Donald Metzler
| Challenge: | State-of-the-art neural models typically encode document-query pairs using cross-attention for re-ranking. |
| Approach: | They propose to fine tune a pretrained encoder-decoder model using document to query generation. |
| Outcome: | The proposed model achieves comparable results to more expensive approaches while being 6.8X faster. |