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Test-time adaptation (TTA) aims to adapt a model, initially trained on training data, to test data with potential distribution shifts. Most existing TTA methods focus on classification problems. The pronounced success of classification…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Chang'an Yi , Haotian Chen , Yifan Zhang , Yonghui Xu , Yan Zhou , Lizhen Cui

Human emotion recognition holds a pivotal role in facilitating seamless human-computer interaction. This paper delineates our methodology in tackling the Valence-Arousal (VA) Estimation Challenge, Expression (Expr) Classification Challenge,…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Weiwei Zhou , Jiada Lu , Chenkun Ling , Weifeng Wang , Shaowei Liu

Owing to the development and advancement of artificial intelligence, numerous works were established in the human facial expression recognition system. Meanwhile, the detection and classification of micro-expressions are attracting…

计算机视觉与模式识别 · 计算机科学 2019-04-04 Sze-Teng Liong , Y. S. Gan , Danna Zheng , Shu-Meng Lic , Hao-Xuan Xua , Han-Zhe Zhang , Ran-Ke Lyu , Kun-Hong Liu

Outbound AI calling systems must distinguish voicemail greetings from live human answers in real time to avoid wasted agent interactions and dropped calls. We present a lightweight approach that extracts 15 temporal features from the speech…

声音 · 计算机科学 2026-04-14 Kumar Saurav

Wearable human activity recognition (WHAR) models often suffer from performance degradation under real-world cross-user distribution shifts. Test-time adaptation (TTA) mitigates this degradation by adapting models online using unlabeled…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Zishu Zhou , Zaipeng Xie , Xuanyao Jie

Despite the recent ubiquity of large language models and their high zero-shot prompted performance across a wide range of tasks, it is still not known how well they perform on tasks which require processing of potentially idiomatic…

计算与语言 · 计算机科学 2024-05-16 Dylan Phelps , Thomas Pickard , Maggie Mi , Edward Gow-Smith , Aline Villavicencio

Developing foundation models for time series classification is of high practical relevance, as such models can serve as universal feature extractors for diverse downstream tasks. Although early models such as Mantis have shown the promise…

机器学习 · 计算机科学 2026-02-23 Vasilii Feofanov , Songkang Wen , Jianfeng Zhang , Lujia Pan , Ievgen Redko

This paper addresses the question of emotion classification. The task consists in predicting emotion labels (taken among a set of possible labels) best describing the emotions contained in short video clips. Building on a standard framework…

计算机视觉与模式识别 · 计算机科学 2017-09-22 Valentin Vielzeuf , Stéphane Pateux , Frédéric Jurie

This paper presents a state-of-the-art solution to the LongEval CLEF 2023 Lab Task 2: LongEval-Classification. The goal of this task is to improve and preserve the performance of sentiment analysis models across shorter and longer time…

计算与语言 · 计算机科学 2023-09-26 Dean Ninalga

In order to unlock the potential of diverse sensors, we investigate a method to transfer knowledge between time-series modalities using a multimodal \textit{temporal} representation space for Human Activity Recognition (HAR). Specifically,…

计算机视觉与模式识别 · 计算机科学 2025-07-11 Abhi Kamboj , Anh Duy Nguyen , Minh N. Do

Video-text retrieval has witnessed remarkable progress driven by large-scale vision-language pretraining, yet most existing approaches inherit an implicit assumption from image-text retrieval: that visual semantics can be captured…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Zixu Li , Yupeng Hu , Zhiwei Chen , Zhiheng Fu , Xiaowei Zhu , Weili Guan , Liqiang Nie

While recent test-time adaptations exhibit efficacy by adjusting batch normalization to narrow domain disparities, their effectiveness diminishes with realistic mini-batches due to inaccurate target estimation. As previous attempts merely…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Zixian Su , Jingwei Guo , Kai Yao , Xi Yang , Qiufeng Wang , Kaizhu Huang

Annotating temporal relations (TempRel) between events described in natural language is known to be labor intensive, partly because the total number of TempRels is quadratic in the number of events. As a result, only a small number of…

计算与语言 · 计算机科学 2018-04-26 Qiang Ning , Zhongzhi Yu , Chuchu Fan , Dan Roth

We introduce Train/Test-Time Adaptation with Retrieval (${\rm T^3AR}$), a method to adapt models both at train and test time by means of a retrieval module and a searchable pool of external samples. Before inference, ${\rm T^3AR}$ adapts a…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Luca Zancato , Alessandro Achille , Tian Yu Liu , Matthew Trager , Pramuditha Perera , Stefano Soatto

Temporal action detection (TAD) aims to locate and recognize the actions in an untrimmed video. Anchor-free methods have made remarkable progress which mainly formulate TAD into two tasks: classification and localization using two separate…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Junshan Hu , Chaoxu guo , Liansheng Zhuang , Biao Wang , Tiezheng Ge , Yuning Jiang , Houqiang Li

We describe the University of Sheffield system used in the TempEval-2 challenge, USFD2. The challenge requires the automatic identification of temporal entities and relations in text. USFD2 identifies and anchors temporal expressions, and…

计算与语言 · 计算机科学 2012-03-23 Leon Derczynski , Robert Gaizauskas

Temporal awareness is crucial in many information retrieval tasks, particularly in scenarios where the relevance of documents depends on their alignment with the query's temporal context. Traditional approaches such as BM25 and Dense…

信息检索 · 计算机科学 2025-04-09 Abdelrahman Abdallah , Bhawna Piryani , Jonas Wallat , Avishek Anand , Adam Jatowt

As machine learning(ML) systems evolve to continual adaptation, each re-training cycle uses compute, annotation, and energy. We introduce TIMEGATE, a policy layer managing adaptation by budgeting time, labeling, training, and evaluation.…

机器学习 · 计算机科学 2026-05-29 Abhijit Chakrabroty , Suddhasvatta Das , Kevin A. Gary , Yash Shah

Temporal and numerical expression understanding is of great importance in many downstream Natural Language Processing (NLP) and Information Retrieval (IR) tasks. However, much previous work covers only a few sub-types and focuses only on…

计算与语言 · 计算机科学 2023-04-03 Sanxing Chen , Yongqiang Chen , Börje F. Karlsson

One pivotal feature of transcriptomics data is the unwanted variations caused by disparate experimental handling, known as handling effects. Various data normalization methods were developed to alleviate the adverse impact of handling…

基因组学 · 定量生物学 2021-02-09 Ai Ni , Li-Xuan Qin