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Zhongzhi Chen

3 accepted papers

2024

Truth Forest: Toward Multi-Scale Truthfulness in Large Language Models through Intervention without Tuning

AAAI 2024technical

Despite the great success of large language models (LLMs) in various tasks, they suffer from generating hallucinations. We introduce Truth Forest, a method that enhances truthfulness in LLMs by uncovering hidden truth representations using multi-dimensional orthogonal probes. Specifically, it create…

2023

AltCLIP: Altering the Language Encoder in CLIP for Extended Language Capabilities

ACL 2023findings

CLIP (Contrastive Language–Image Pretraining) is an English multimodal representation model learned from a massive amount of English text-image pairs and has achieved great success in various downstream tasks, including image classification, text-to-image retrieval, and image generation. When extend…

2022

Exploiting Global and Local Hierarchies for Hierarchical Text Classification

EMNLP 2022main

Hierarchical text classification aims to leverage label hierarchy in multi-label text classification. Existing methods encode label hierarchy in a global view, where label hierarchy is treated as the static hierarchical structure containing all labels. Since global hierarchy is static and irrelevant…