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Detecting online sexual predatory behaviours and abusive language on social media platforms has become a critical area of research due to the growing concerns about online safety, especially for vulnerable populations such as children and…

Computation and Language · Computer Science 2023-08-29 Thanh Thi Nguyen , Campbell Wilson , Janis Dalins

Large-scale Chinese spelling correction (CSC) remains critical for real-world text processing, yet existing LLMs and supervised methods lack robustness to novel errors and rely on costly annotations. We introduce CEC-Zero, a…

Computation and Language · Computer Science 2026-01-01 Zhiming Lin , Kai Zhao , Sophie Zhang , Peilai Yu , Canran Xiao

Chinese Spelling Correction (CSC) aims to detect and correct erroneous tokens in sentences. Traditional CSC focuses on equal length correction and uses pretrained language models (PLMs). While Large Language Models (LLMs) have shown…

Computation and Language · Computer Science 2025-08-12 Junhong Liang , Yu Zhou

Chinese spelling correction (CSC) is a crucial task that aims to correct character errors in Chinese text. While conventional CSC focuses on character substitution errors caused by mistyping, two other common types of character errors,…

Computation and Language · Computer Science 2025-06-17 Houquan Zhou , Bo Zhang , Zhenghua Li , Ming Yan , Min Zhang

We investigate the performance on phoneme categorization and phoneme and word segmentation of several self-supervised learning (SSL) methods based on Contrastive Predictive Coding (CPC). Our experiments show that with the existing…

This paper examines the efficacy of utilizing large language models (LLMs) to detect public threats posted online. Amid rising concerns over the spread of threatening rhetoric and advance notices of violence, automated content analysis…

Computation and Language · Computer Science 2025-01-07 Taeksoo Kwon , Connor Kim

Tokenization is fundamental to pretrained language models (PLMs). Existing tokenization methods for Chinese PLMs typically treat each character as an indivisible token. However, they ignore the unique feature of the Chinese writing system…

Computation and Language · Computer Science 2023-02-16 Chenglei Si , Zhengyan Zhang , Yingfa Chen , Fanchao Qi , Xiaozhi Wang , Zhiyuan Liu , Yasheng Wang , Qun Liu , Maosong Sun

Self-supervised contrastive learning (CL) effectively learns transferable representations from unlabeled data containing images or image-text pairs but suffers vulnerability to data poisoning backdoor attacks (DPCLs). An adversary can…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Tuo Chen , Jie Gui , Minjing Dong , Ju Jia , Lanting Fang , Jian Liu

This paper focuses to detect the fake news on the short video platforms. While significant research efforts have been devoted to this task with notable progress in recent years, current detection accuracy remains suboptimal due to the rapid…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Junxi Wang , Jize liu , Na Zhang , Yaxiong Wang

Chinese spelling check (CSC) is a fundamental NLP task that detects and corrects spelling errors in Chinese texts. As most of these spelling errors are caused by phonetic similarity, effectively modeling the pronunciation of Chinese…

Computation and Language · Computer Science 2022-10-21 Jiahao Li , Quan Wang , Zhendong Mao , Junbo Guo , Yanyan Yang , Yongdong Zhang

Detecting misogynistic hate speech is a difficult algorithmic task. The task is made more difficult when decision criteria for what constitutes misogynistic speech are ungrounded in established literatures in psychology and philosophy, both…

Computers and Society · Computer Science 2026-01-27 Artemis Deligianni , Zachary Horne , Leonidas A. A. Doumas

The advent of natural language understanding (NLU) benchmarks for English, such as GLUE and SuperGLUE allows new NLU models to be evaluated across a diverse set of tasks. These comprehensive benchmarks have facilitated a broad range of…

Contrastive learning (CL) has become a ubiquitous approach for several natural language processing (NLP) downstream tasks, especially for question answering (QA). However, the major challenge, how to efficiently train the knowledge…

Computation and Language · Computer Science 2022-03-31 Wenshen Xu , Mieradilijiang Maimaiti , Yuanhang Zheng , Xin Tang , Ji Zhang

Learner corpus collects language data produced by L2 learners, that is second or foreign-language learners. This resource is of great relevance for second language acquisition research, foreign-language teaching, and automatic grammatical…

Computation and Language · Computer Science 2022-01-03 Yingying Wang , Cunliang Kong , Liner Yang , Yijun Wang , Xiaorong Lu , Renfen Hu , Shan He , Zhenghao Liu , Yun Chen , Erhong Yang , Maosong Sun

Most video-and-language representation learning approaches employ contrastive learning, e.g., CLIP, to project the video and text features into a common latent space according to the semantic similarities of text-video pairs. However, such…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Peng Jin , Jinfa Huang , Fenglin Liu , Xian Wu , Shen Ge , Guoli Song , David A. Clifton , Jie Chen

The core of the dialogue system is to generate relevant, informative, and human-like responses based on extensive dialogue history. Recently, dialogue generation domain has seen mainstream adoption of large language models (LLMs), due to…

Computation and Language · Computer Science 2024-06-05 Shixuan Fan , Wei Wei , Wendi Li , Xian-Ling Mao , Wenfeng Xie , Dangyang Chen

Coded language is an important part of human communication. It refers to cases where users intentionally encode meaning so that the surface text differs from the intended meaning and must be decoded to be understood. Current language models…

Computation and Language · Computer Science 2026-04-23 Ruyuan Wan , Changye Li , Ting-Hao 'Kenneth' Huang

Weakly Supervised Semantic Segmentation (WSSS) with image-level labels has gained attention for its cost-effectiveness. Most existing methods emphasize inter-class separation, often neglecting the shared semantics among related categories…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Wangyu Wu , Zhenhong Chen , Xiaowen Ma , Wenqiao Zhang , Xianglin Qiu , Siqi Song , Xiaowei Huang , Fei Ma , Jimin Xiao

Large Language Models (LLMs) presents significant priority in text understanding and generation. However, LLMs suffer from the risk of generating harmful contents especially while being employed to applications. There are several black-box…

Computation and Language · Computer Science 2023-12-11 Chengyuan Liu , Fubang Zhao , Lizhi Qing , Yangyang Kang , Changlong Sun , Kun Kuang , Fei Wu

Large language models (LLMs) have demonstrated remarkable capabilities, but their success heavily relies on the quality of pretraining corpora. For Chinese LLMs, the scarcity of high-quality Chinese datasets presents a significant…

Computation and Language · Computer Science 2025-01-15 Yijiong Yu , Ziyun Dai , Zekun Wang , Wei Wang , Ran Chen , Ji Pei