Papers by Kaisheng Yao
OmniEvent: A Comprehensive, Fair, and Easy-to-Use Toolkit for Event Understanding (2023.emnlp-demo)
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| Challenge: | Event understanding is fundamental for humans to understand the world. |
| Approach: | They propose an event understanding toolkit called OmniEvent that is comprehensive and fair . it supports mainstream modeling paradigms and the processing of 15 widely-used datasets . |
| Outcome: | The toolkit supports mainstream modeling paradigms and the processing of 15 widely-used English and Chinese datasets. |
Slot-consistent NLG for Task-oriented Dialogue Systems with Iterative Rectification Network (2020.acl-main)
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| Challenge: | Existing approaches to natural language generation are prone to errors, such as neglecting input slot values and generating redundant slot values. |
| Approach: | They propose an iterative rectification network to improve general NLG systems . they apply bootstrapping algorithms to sample training candidates and incorporate reward . |
| Outcome: | The proposed methods significantly reduce the slot error rate for strong baselines. |
Enhancing Abstractiveness of Summarization Models through Calibrated Distillation (2023.findings-emnlp)
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| Challenge: | Existing methods to generate abstractive summarizations are slow and abstractive, but we propose a novel approach to enhance the level of abstractiveness without sacrificing the informativeness of generated summaries. |
| Approach: | They propose a novel approach to enhance the level of abstractiveness without sacrificing the informativeness of generated summaries by exposing diverse pseudo summary with two supervision to the student model. |
| Outcome: | The proposed method outperforms previous methods in abstractive summarization distillation, producing highly abstractive and informative summaries. |
Handling Rare Entities for Neural Sequence Labeling (2020.acl-main)
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| Challenge: | Recent approaches to sequence labeling have been based on statistical models but a challenge is from the data sparsity problem. |
| Approach: | They propose to use local context reconstruction to implicitly incorporate contextual information into their representations. |
| Outcome: | The proposed model outperforms all previous methods on multiple benchmark datasets and achieves new start-of-the-art results. |
The Devil is in the Details: On the Pitfalls of Event Extraction Evaluation (2023.findings-acl)
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| Challenge: | Event extraction (EE) is a fundamental information extraction task aimed at extracting events from plain texts. |
| Approach: | They propose to specify data preprocessing, standardize outputs, and provide pipeline evaluation results to avoid these pitfalls. |
| Outcome: | The results show that the evaluations are reliable and lack pipeline evaluations. |
Neural Sequence Segmentation as Determining the Leftmost Segments (2021.naacl-main)
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| Challenge: | Existing methods to segment sentences are mostly at token level, limiting their full potential to capture long-term dependencies. |
| Approach: | They propose a framework that incrementally segments natural language sentences at segment level. |
| Outcome: | The proposed framework outperforms baseline methods on syntactic chunking and Chinese part-of-speech tagging datasets. |
Rewriter-Evaluator Architecture for Neural Machine Translation (2021.acl-long)
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| Challenge: | Existing approaches to improve neural machine translation models with multiple decoding passes lack proper policies to terminate multi-pass processes. |
| Approach: | They propose a novel architecture of Rewriter-Evaluator to terminate multi-pass decoding . they propose prioritized gradient descent to jointly and efficiently train rewriter and evaluator . |
| Outcome: | The proposed architecture significantly outperforms existing methods on three translation tasks and reduces performance gaps to oracle policies. |
Zero-Shot End-to-End Spoken Language Understanding via Cross-Modal Selective Self-Training (2024.eacl-long)
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| Challenge: | End-to-end (E2E) spoken language understanding models are constrained by the cost of collecting speech-semantics pairs. |
| Approach: | They propose a model that learns E2E SLU without speech-semantics pairs . they propose cross-modal selective self-training (CMSST) to address imbalance and noise issues . |
| Outcome: | The proposed model learns E2E SLU without speech-semantics pairs . the proposed model requires the domains of speech-text and text-sensitization to match . |