Papers by Zhengping Zhou
Beyond Positive Scaling: How Negation Impacts Scaling Trends of Language Models (2023.findings-acl)
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Yuhui Zhang, Michihiro Yasunaga, Zhengping Zhou, Jeff Z. HaoChen, James Zou, Percy Liang, Serena Yeung
| Challenge: | Recent studies show that some tasks exhibit inverse scaling, or U-shaped scaling, where the performance degrades as models are scaled up. |
| Approach: | They propose a task that asks questions with negation to show positive scaling . they hypothesize that solving NeQA depends on question answering and negation understanding . |
| Outcome: | The proposed task can exhibit inverse scaling, U-shaped scaling, or positive scaling, and the scaling trends shift as the task is more powerful. |
How Grounded is Wikipedia? A Study on Structured Evidential Support and Retrieval (2026.findings-acl)
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William Gantt Walden, Kathryn Ricci, Miriam Wanner, Zhengping Jiang, Chandler May, Rongkun Zhou, Benjamin Van Durme
| Challenge: | 22% of claims in Wikipedia *lead* sections are unsupported by the article body . 30% of annotated claims in the article *body* are unbacked by their (publicly accessible) sources . |
| Approach: | They analyze Wikipedia's claim support annotations using a large-scale dataset . they find that 22% of Wikipedia claims are unsupported by the article body . |
| Outcome: | The proposed dataset analyzes claims support annotations on biographical Wikipedia articles. |