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Given a similarity metric, contrastive methods learn a representation in which examples that are similar are pushed together and examples that are dissimilar are pulled apart. Contrastive learning techniques have been utilized extensively…

机器学习 · 计算机科学 2023-07-07 Emily Mu , John Guttag , Maggie Makar

Multimodal reasoning is a challenging task that requires models to reason across multiple modalities to answer questions. Existing approaches have made progress by incorporating language and visual modalities into a two-stage reasoning…

人工智能 · 计算机科学 2024-07-04 Cheng Tan , Jingxuan Wei , Zhangyang Gao , Linzhuang Sun , Siyuan Li , Ruifeng Guo , Bihui Yu , Stan Z. Li

Effective code retrieval is indispensable and it has become an important paradigm to search code in hybrid mode using both natural language and code snippets. Nevertheless, it remains unclear whether existing approaches can effectively…

软件工程 · 计算机科学 2026-03-09 Yang Yang , Li Kuang , Jiakun Liu , Zhongxin Liu , Yingjie Xia , David Lo

Multimodal fake news detection aims to automatically identify real or fake news, thereby mitigating the adverse effects caused by such misinformation. Although prevailing approaches have demonstrated their effectiveness, challenges persist…

计算机视觉与模式识别 · 计算机科学 2024-12-25 Xinquan Yu , Ziqi Sheng , Wei Lu , Xiangyang Luo , Jiantao Zhou

Many contrastive learning based models have achieved advanced performance in image-text matching tasks. The key of these models lies in analyzing the correlation between image-text pairs, which involves cross-modal interaction of embeddings…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Xiang Ma , Xuemei Li , Lexin Fang , Caiming Zhang

Many researchers collect data from the internet through crowd-sourcing or web crawling to alleviate the data-hungry challenge associated with cross-modal matching. Although such practice does not require expensive annotations, it inevitably…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Fan Liu , Chenwei Dong , Chuanyi Zhang , Hualiang Zhou , Jun Zhou

Automatic relation extraction (RE) for types of interest is of great importance for interpreting massive text corpora in an efficient manner. Traditional RE models have heavily relied on human-annotated corpus for training, which can be…

计算与语言 · 计算机科学 2017-11-27 Zeqiu Wu , Xiang Ren , Frank F. Xu , Ji Li , Jiawei Han

Referring expression comprehension (REC) and segmentation (RES) are two highly-related tasks, which both aim at identifying the referent according to a natural language expression. In this paper, we propose a novel Multi-task Collaborative…

计算机视觉与模式识别 · 计算机科学 2020-03-20 Gen Luo , Yiyi Zhou , Xiaoshuai Sun , Liujuan Cao , Chenglin Wu , Cheng Deng , Rongrong Ji

There is extensive interest in metric learning methods for image retrieval. Many metric learning loss functions focus on learning a correct ranking of training samples, but strongly overfit semantically inconsistent labels and require a…

机器学习 · 计算机科学 2023-06-05 Christopher Liao , Theodoros Tsiligkaridis , Brian Kulis

Person re-identification (re-ID) aims at matching images of the same identity across camera views. Due to varying distances between cameras and persons of interest, resolution mismatch can be expected, which would degrade person re-ID…

计算机视觉与模式识别 · 计算机科学 2019-08-19 Yu-Jhe Li , Yun-Chun Chen , Yen-Yu Lin , Xiaofei Du , Yu-Chiang Frank Wang

Large language Models (LLMs) have achieved promising performance on arithmetic reasoning tasks by incorporating step-by-step chain-of-thought (CoT) prompting. However, LLMs face challenges in maintaining factual consistency during…

计算与语言 · 计算机科学 2023-10-03 Tianci Xue , Ziqi Wang , Zhenhailong Wang , Chi Han , Pengfei Yu , Heng Ji

Supervised contrastive learning (SupCon) has proven to be a powerful alternative to the standard cross-entropy loss for classification of multi-class balanced datasets. However, it struggles to learn well-conditioned representations of…

机器学习 · 计算机科学 2025-03-24 David Mildenberger , Paul Hager , Daniel Rueckert , Martin J Menten

We identify agreement and disagreement between utterances that express stances towards a topic of discussion. Existing methods focus mainly on conversational settings, where dialogic features are used for (dis)agreement inference. We extend…

计算与语言 · 计算机科学 2019-06-05 Chang Xu , Cecile Paris , Surya Nepal , Ross Sparks

Correspondence learning is a fundamental problem in robotics, which aims to learn a mapping between state, action pairs of agents of different dynamics or embodiments. However, current correspondence learning methods either leverage…

机器人学 · 计算机科学 2022-03-08 Zihan Wang , Zhangjie Cao , Yilun Hao , Dorsa Sadigh

Traditional text-based person re-identification (ReID) techniques heavily rely on fully matched multi-modal data, which is an ideal scenario. However, due to inevitable data missing and corruption during the collection and processing of…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Tiantian Gong , Guodong Du , Junsheng Wang , Yongkang Ding , Liyan Zhang

Misinformation on the web increasingly appears in multimodal forms, combining text, images, and OCR-rendered content in ways that amplify harm to public trust and vulnerable communities. While prior fact-checking systems often rely on…

计算与语言 · 计算机科学 2026-01-14 Aditya Kishore , Gaurav Kumar , Jasabanta Patro

As multimodal learning finds applications in a wide variety of high-stakes societal tasks, investigating their robustness becomes important. Existing work has focused on understanding the robustness of vision-and-language models to…

机器学习 · 计算机科学 2022-11-07 Gaurav Verma , Vishwa Vinay , Ryan A. Rossi , Srijan Kumar

Person re-identification (re-ID) aims at matching images of the same person across camera views. Due to varying distances between cameras and persons of interest, resolution mismatch can be expected, which would degrade re-ID performance in…

计算机视觉与模式识别 · 计算机科学 2020-10-26 Yu-Jhe Li , Yun-Chun Chen , Yen-Yu Lin , Yu-Chiang Frank Wang

In the realm of cross-modal retrieval, seamlessly integrating diverse modalities within multimedia remains a formidable challenge, especially given the complexities introduced by noisy correspondence learning (NCL). Such noise often stems…

多媒体 · 计算机科学 2024-08-05 Yue Duan , Zhangxuan Gu , Zhenzhe Ying , Lei Qi , Changhua Meng , Yinghuan Shi

Combining complementary information from multiple modalities is intuitively appealing for improving the performance of learning-based approaches. However, it is challenging to fully leverage different modalities due to practical challenges…

机器学习 · 统计学 2018-05-31 Kuan Liu , Yanen Li , Ning Xu , Prem Natarajan