Papers by Yuzhi Liang
PivotAttack: Rethinking the Search Trajectory in Hard-Label Text Attacks via Pivot Words (2026.findings-acl)
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| Challenge: | Existing hard-label text attacks rely on inefficient "outside-in" strategies that traverse vast search spaces. |
| Approach: | They propose a query-efficient "inside-out" framework that perturbs Pivot Sets to induce label flips. |
| Outcome: | The proposed framework outperforms state-of-the-art methods in both Attack Success Rate and query efficiency. |
Temporal-Aware Soft Prompt Tuning for Automatic Text Dating (2025.naacl-long)
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| Challenge: | Existing methods for automatic text dating overlook the evolution of word meanings in texts spanning long periods. |
| Approach: | They propose a temporal-aware text representation that dynamically captures both semantic variance and invariance. |
| Outcome: | The proposed approach outperforms existing methods on two diachronic datasets. |