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Unsupervised person re-identification (ReID) is a challenging task without data annotation to guide discriminative learning. Existing methods attempt to solve this problem by clustering extracted embeddings to generate pseudo labels.…

计算机视觉与模式识别 · 计算机科学 2022-08-30 Xue Li , Tengfei Liang , Yi Jin , Tao Wang , Yidong Li

The widespread use of face recognition technology has given rise to privacy concerns, as many individuals are worried about the collection and utilization of their facial data. To address these concerns, researchers are actively exploring…

密码学与安全 · 计算机科学 2023-10-26 Zhiling Zhang , Jie Zhang , Kui Zhang , Wenbo Zhou , Weiming Zhang , Nenghai Yu

Person re-identification is a problem of identifying individuals across non-overlapping cameras. Although remarkable progress has been made in the re-identification problem, it is still a challenging problem due to appearance variations of…

计算机视觉与模式识别 · 计算机科学 2022-11-09 Seongyeop Yang , Byeongkeun Kang , Yeejin Lee

The reduction of the cost of infrared (IR) cameras in recent years has made IR imaging a highly viable modality for face recognition in practice. A particularly attractive advantage of IR-based over conventional, visible spectrum-based face…

计算机视觉与模式识别 · 计算机科学 2014-07-29 Reza Shoja Ghiass , Ognjen Arandjelovic , Hakim Bendada , Xavier Maldague

Authentication is the task of confirming the matching relationship between a data instance and a given identity. Typical examples of authentication problems include face recognition and person re-identification. Data-driven authentication…

机器学习 · 统计学 2020-11-24 Jian Liang , Yuren Cao , Shuang Li , Bing Bai , Hao Li , Fei Wang , Kun Bai

The recently proposed unlabeled-unlabeled (UU) classification method allows us to train a binary classifier only from two unlabeled datasets with different class priors. Since this method is based on the empirical risk minimization, it…

机器学习 · 计算机科学 2020-04-01 Nan Lu , Tianyi Zhang , Gang Niu , Masashi Sugiyama

Positive-unlabeled learning (PUL) aims at learning a binary classifier from only positive and unlabeled training data. Even though real-world applications often involve imbalanced datasets where the majority of examples belong to one class,…

机器学习 · 统计学 2024-03-12 Emilio Dorigatti , Jann Goschenhofer , Benjamin Schubert , Mina Rezaei , Bernd Bischl

Large language models (LLMs) fine-tuned for text-retrieval have demonstrated state-of-the-art results across several information retrieval (IR) benchmarks. However, supervised training for improving these models requires numerous labeled…

信息检索 · 计算机科学 2024-06-24 William Fleshman , Benjamin Van Durme

Although much progress has been made in visual emotion recognition, researchers have realized that modern deep networks tend to exploit dataset characteristics to learn spurious statistical associations between the input and the target.…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Yuedong Chen , Xu Yang , Tat-Jen Cham , Jianfei Cai

Discrimination can occur when the underlying unbiased labels are overwritten by an agent with potential bias, resulting in biased datasets that unfairly harm specific groups and cause classifiers to inherit these biases. In this paper, we…

机器学习 · 计算机科学 2023-12-27 Yixuan Zhang , Boyu Li , Zenan Ling , Feng Zhou

In person re-identification (ReID) tasks, many works explore the learning of part features to improve the performance over global image features. Existing methods explicitly extract part features by either using a hand-designed image…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Dengjie Li , Siyu Chen , Yujie Zhong , Lin Ma

In this paper, we delve into semi-supervised object detection where unlabeled images are leveraged to break through the upper bound of fully-supervised object detection models. Previous semi-supervised methods based on pseudo labels are…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Zhenyu Wang , Yali Li , Ye Guo , Lu Fang , Shengjin Wang

Unknown Object Detection (UOD) aims to identify objects of unseen categories, differing from the traditional detection paradigm limited by the closed-world assumption. A key component of UOD is learning a generalized representation, i.e.…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Haomiao Liu , Hao Xu , Chuhuai Yue , Bo Ma

Person re-identification (ReID) is now an active research topic for AI-based video surveillance applications such as specific person search, but the practical issue that the target person(s) may change clothes (clothes inconsistency…

计算机视觉与模式识别 · 计算机科学 2020-05-26 Fangbin Wan , Yang Wu , Xuelin Qian , Yixiong Chen , Yanwei Fu

Data labeling for learning 3D hand pose estimation models is a huge effort. Readily available, accurately labeled synthetic data has the potential to reduce the effort. However, to successfully exploit synthetic data, current…

计算机视觉与模式识别 · 计算机科学 2018-12-06 Georg Poier , Michael Opitz , David Schinagl , Horst Bischof

Biomedical named entity recognition (NER) is a fundamental task in text mining of medical documents and has many applications. Deep learning based approaches to this task have been gaining increasing attention in recent years as their…

计算与语言 · 计算机科学 2018-08-16 Devendra Singh Sachan , Pengtao Xie , Mrinmaya Sachan , Eric P Xing

Visual recognition is recently learned via either supervised learning on human-annotated image-label data or language-image contrastive learning with webly-crawled image-text pairs. While supervised learning may result in a more…

计算机视觉与模式识别 · 计算机科学 2022-04-08 Jianwei Yang , Chunyuan Li , Pengchuan Zhang , Bin Xiao , Ce Liu , Lu Yuan , Jianfeng Gao

Learning discriminative representations for unseen person images is critical for person Re-Identification (ReID). Most of current approaches learn deep representations in classification tasks, which essentially minimize the empirical…

计算机视觉与模式识别 · 计算机科学 2019-09-05 Hantao Yao , Shiliang Zhang , Yongdong Zhang , Jintao Li , Qi Tian

Deep learning-based domain-invariant feature learning methods are advancing in near-infrared and visible (NIR-VIS) heterogeneous face recognition. However, these methods are prone to overfitting due to the large intra-class variation and…

计算机视觉与模式识别 · 计算机科学 2020-10-09 Ha Le , Ioannis A. Kakadiaris

Unsupervised person re-identification (ReID) aims to train a feature extractor for identity retrieval without exploiting identity labels. Due to the blind trust in imperfect clustering results, the learning is inevitably misled by…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Yunqi Miao , Jiankang Deng , Guiguang Ding , Jungong Han