Search Results for author: Zhecheng Sheng

Found 6 papers, 1 papers with code

Too Big to Fail: Larger Language Models are Disproportionately Resilient to Induction of Dementia-Related Linguistic Anomalies

1 code implementation5 Jun 2024 Changye Li, Zhecheng Sheng, Trevor Cohen, Serguei Pakhomov

As artificial neural networks grow in complexity, understanding their inner workings becomes increasingly challenging, which is particularly important in healthcare applications.

On the Sequence Evaluation based on Stochastic Processes

no code implementations28 May 2024 Tianhao Zhang, Zhexiao Lin, Zhecheng Sheng, Chen Jiang, Dongyeop Kang

Recent methods that utilize stochastic processes to capture the intrinsic dynamics of sequences have shown superior performance in generative modeling.

Coherence Evaluation Contrastive Learning +2

BBScore: A Brownian Bridge Based Metric for Assessing Text Coherence

no code implementations28 Dec 2023 Zhecheng Sheng, Tianhao Zhang, Chen Jiang, Dongyeop Kang

In summary, we present a novel Brownian bridge coherence metric capable of measuring both local and global text coherence, while circumventing the need for end-to-end model training.

Coherence Evaluation

Enhancing Robustness of Foundation Model Representations under Provenance-related Distribution Shifts

no code implementations9 Dec 2023 Xiruo Ding, Zhecheng Sheng, Brian Hur, Feng Chen, Serguei V. S. Pakhomov, Trevor Cohen

We focus on confounding by provenance, a form of distribution shift that emerges in the context of multi-institutional datasets when there are differences in source-specific language use and class distributions.

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