Papers by Victoria Graf
Two Heads are Better than One: Nested PoE for Robust Defense Against Multi-Backdoors (2024.naacl-long)
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| Challenge: | Existing defense mechanisms assume that only one type of trigger is adopted by the attacker, while defending against multiple simultaneous and independent trigger types necessitates general defense frameworks. |
| Approach: | They propose a framework that uses a mixture of experts as a trigger-only ensemble to defend against multiple trigger types. |
| Outcome: | The proposed framework defends against multiple trigger types in a single ensemble and in combination of models. |
C-STS: Conditional Semantic Textual Similarity (2023.emnlp-main)
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Ameet Deshpande, Carlos Jimenez, Howard Chen, Vishvak Murahari, Victoria Graf, Tanmay Rajpurohit, Ashwin Kalyan, Danqi Chen, Karthik Narasimhan
| Challenge: | Semantic textual similarity (STS) is a cornerstone task in natural language processing, but it is inherently ambiguous. |
| Approach: | They propose a task called conditional STS which measures similarity conditioned on an aspect elucidated in natural language. |
| Outcome: | The proposed task reduces subjectivity and ambiguity and enables fine-grained similarity evaluation using diverse conditions. |