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Deep Image Manipulation Localization (IML) models suffer from training data insufficiency and thus heavily rely on pre-training. We argue that contrastive learning is more suitable to tackle the data insufficiency problem for IML. Crafting…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Jizhe Zhou , Xiaochen Ma , Xia Du , Ahmed Y. Alhammadi , Wentao Feng

Neural machine translation benefits from semantically rich representations. Considerable progress in learning such representations has been achieved by language modelling and mutual information maximization objectives using contrastive…

Computation and Language · Computer Science 2024-01-09 Kshitij Ambilduke , Aneesh Shetye , Diksha Bagade , Rishika Bhagwatkar , Khurshed Fitter , Prasad Vagdargi , Shital Chiddarwar

Intent recognition is critical for task-oriented dialogue systems. However, for emerging domains and new services, it is difficult to accurately identify the key intent of a conversation due to time-consuming data annotation and…

Computation and Language · Computer Science 2023-03-10 Caiyuan Chu , Ya Li , Yifan Liu , Jia-Chen Gu , Quan Liu , Yongxin Ge , Guoping Hu

With the boom of e-commerce, Multimodal Review Helpfulness Prediction (MRHP), which aims to sort product reviews according to the predicted helpfulness scores has become a research hotspot. Previous work on this task focuses on…

Computation and Language · Computer Science 2022-10-06 Wei Han , Hui Chen , Zhen Hai , Soujanya Poria , Lidong Bing

Entailment has been recognized as an important metric for evaluating natural language understanding (NLU) models, and recent studies have found that entailment pretraining benefits weakly supervised fine-tuning. In this work, we design a…

Computation and Language · Computer Science 2023-05-30 Jiaxin Ge , Hongyin Luo , Yoon Kim , James Glass

Although existing semi-supervised learning models achieve remarkable success in learning with unannotated in-distribution data, they mostly fail to learn on unlabeled data sampled from novel semantic classes due to their closed-set…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Sheng Zhang , Salman Khan , Zhiqiang Shen , Muzammal Naseer , Guangyi Chen , Fahad Khan

Recently, pretext-task based methods are proposed one after another in self-supervised video feature learning. Meanwhile, contrastive learning methods also yield good performance. Usually, new methods can beat previous ones as claimed that…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Li Tao , Xueting Wang , Toshihiko Yamasaki

Spoken language understanding (SLU) treats automatic speech recognition (ASR) and natural language understanding (NLU) as a unified task and usually suffers from data scarcity. We exploit an ASR and NLU joint training method based on meta…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-28 Yingying Gao , Junlan Feng , Chao Deng , Shilei Zhang

In-context learning (ICL) has proven highly effective across diverse large language model (LLM) tasks. However, its potential for enhancing tasks that demand step-by-step logical deduction, such as mathematical reasoning, remains…

Artificial Intelligence · Computer Science 2026-01-21 Ang Gao , Changshuo Zhang , Xiao Zhang , Deyang Li , Minjun Zhao , Fangchao Liu , Xinyu Zhang

Large language models (LLMs) excel at a range of tasks through in-context learning (ICL), where only a few task examples guide their predictions. However, prior research highlights that LLMs often overlook input-label mapping information in…

Computation and Language · Computer Science 2025-06-10 Keqin Peng , Liang Ding , Yuanxin Ouyang , Meng Fang , Yancheng Yuan , Dacheng Tao

Users' interactions with items are driven by various intents (e.g., preparing for holiday gifts, shopping for fishing equipment, etc.).However, users' underlying intents are often unobserved/latent, making it challenging to leverage such…

Artificial Intelligence · Computer Science 2022-02-08 Yongjun Chen , Zhiwei Liu , Jia Li , Julian McAuley , Caiming Xiong

Prototypical contrastive learning (PCL) has been widely used to learn class-wise domain-invariant features recently. These methods are based on the assumption that the prototypes, which are represented as the central value of the same class…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Muxin Liao , Shishun Tian , Yuhang Zhang , Guoguang Hua , Wenbin Zou , Xia Li

In this work, we present Multi-Level Contrastive Learning for Dense Prediction Task (MCL), an efficient self-supervised method for learning region-level feature representation for dense prediction tasks. Our method is motivated by the three…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Qiushan Guo , Yizhou Yu , Yi Jiang , Jiannan Wu , Zehuan Yuan , Ping Luo

Neural dialogue response generation has gained much popularity in recent years. Maximum Likelihood Estimation (MLE) objective is widely adopted in existing dialogue model learning. However, models trained with MLE objective function are…

Computation and Language · Computer Science 2020-10-14 Hengyi Cai , Hongshen Chen , Yonghao Song , Zhuoye Ding , Yongjun Bao , Weipeng Yan , Xiaofang Zhao

We introduce EfficientCL, a memory-efficient continual pretraining method that applies contrastive learning with novel data augmentation and curriculum learning. For data augmentation, we stack two types of operation sequentially: cutoff…

Computation and Language · Computer Science 2021-10-19 Seonghyeon Ye , Jiseon Kim , Alice Oh

In modular dialogue systems, natural language understanding (NLU) and natural language generation (NLG) are two critical components, where NLU extracts the semantics from the given texts and NLG is to construct corresponding natural…

Computation and Language · Computer Science 2020-05-01 Shang-Yu Su , Chao-Wei Huang , Yun-Nung Chen

Pre-trained language models (PLMs) have made significant advances in natural language inference (NLI) tasks, however their sensitivity to textual perturbations and dependence on large datasets indicate an over-reliance on shallow…

Machine Learning · Computer Science 2025-02-14 Mingyue Liu , Ryo Ueda , Zhen Wan , Katsumi Inoue , Chris G. Willcocks

Despite the advancements in in-context learning (ICL) for large language models (LLMs), current research centers on specific prompt engineering, such as demonstration selection, with the expectation that a single iteration of demonstrations…

Computation and Language · Computer Science 2024-06-05 Jiaxi Yang , Binyuan Hui , Min Yang , Bailin Wang , Bowen Li , Binhua Li , Fei Huang , Yongbin Li

Large vision-language models (LVLMs) employ multi-modal in-context learning (MM-ICL) to adapt to new tasks by leveraging demonstration examples. While increasing the number of demonstrations boosts performance, they incur significant…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Shin'ya Yamaguchi , Daiki Chijiwa , Tamao Sakao , Taku Hasegawa

Natural language understanding (NLU) and natural language generation (NLG) are both critical research topics in the NLP field. Natural language understanding is to extract the core semantic meaning from the given utterances, while natural…

Computation and Language · Computer Science 2020-05-01 Shang-Yu Su , Chao-Wei Huang , Yun-Nung Chen