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This study evaluates the effectiveness of different feature extraction techniques and classification algorithms in detecting spam messages within SMS data. We analyzed six classifiers Naive Bayes, K-Nearest Neighbors, Support Vector…

密码学与安全 · 计算机科学 2025-02-18 Mohsen Ahmadi , Matin Khajavi , Abbas Varmaghani , Ali Ala , Kasra Danesh , Danial Javaheri

In this study, we aim to explore Multitask Speech Language Model (SpeechLM) efficient inference via token reduction. Unlike other modalities such as vision or text, speech has unique temporal dependencies, making previous efficient…

音频与语音处理 · 电气工程与系统科学 2024-10-07 Yichen Lu , Jiaqi Song , Chao-Han Huck Yang , Shinji Watanabe

Features from multiple scales can greatly benefit the semantic edge detection task if they are well fused. However, the prevalent semantic edge detection methods apply a fixed weight fusion strategy where images with different semantics are…

计算机视觉与模式识别 · 计算机科学 2019-02-26 Yuan Hu , Yunpeng Chen , Xiang Li , Jiashi Feng

The goal of weakly-supervised video moment retrieval is to localize the video segment most relevant to the given natural language query without access to temporal annotations during training. Prior strongly- and weakly-supervised approaches…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Reuben Tan , Huijuan Xu , Kate Saenko , Bryan A. Plummer

The outcome of text recognition for degraded color documents is often unsatisfactory due to interference from various contaminants. To extract information more efficiently for text recognition, document image enhancement and binarization…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Rui-Yang Ju , KokSheik Wong , Jen-Shiun Chiang

Extracting topics from text has become an essential task, especially with the rapid growth of unstructured textual data. Most existing works rely on highly computational methods to address this challenge. In this paper, we argue that…

计算与语言 · 计算机科学 2025-11-07 Salma Mekaoui , Hiba Sofyan , Imane Amaaz , Imane Benchrif , Arsalane Zarghili , Ilham Chaker , Nikola S. Nikolov

Recommender systems (RSs) have been a widely exploited approach to solving the information overload problem. However, the performance is still limited due to the extreme sparsity of the rating data. With the popularity of Web 2.0, the…

信息检索 · 计算机科学 2017-05-24 Jianguo Li , Yong Tang , Jiemin Chen

Video-based person re-identification (ReID) is challenging due to the presence of various interferences in video frames. Recent approaches handle this problem using temporal aggregation strategies. In this work, we propose a novel Context…

计算机视觉与模式识别 · 计算机科学 2022-07-07 Kan Wang , Changxing Ding , Jianxin Pang , Xiangmin Xu

Due to the difficulty of acquiring large-scale explicit user feedback, implicit feedback (e.g., clicks or other interactions) is widely applied as an alternative source of data, where user-item interactions can be modeled as a bipartite…

信息检索 · 计算机科学 2024-11-15 Xinyu He , Jose Sepulveda , Mostafa Rahmani , Alyssa Woo , Fei Wang , Hanghang Tong

This paper considers a video caption generating network referred to as Semantic Grouping Network (SGN) that attempts (1) to group video frames with discriminating word phrases of partially decoded caption and then (2) to decode those…

计算机视觉与模式识别 · 计算机科学 2021-02-04 Hobin Ryu , Sunghun Kang , Haeyong Kang , Chang D. Yoo

Automatically extracting engaging and high-quality humorous scenes from cinematic titles is pivotal for creating captivating video previews and snackable content, boosting user engagement on streaming platforms. Long-form cinematic titles,…

信息检索 · 计算机科学 2026-02-18 Sibendu Paul , Haotian Jiang , Caren Chen

An ideal description for a given video should fix its gaze on salient and representative content, which is capable of distinguishing this video from others. However, the distribution of different words is unbalanced in video captioning…

计算机视觉与模式识别 · 计算机科学 2019-01-03 Jiarong Dong , Ke Gao , Xiaokai Chen , Junbo Guo , Juan Cao , Yongdong Zhang

Controllable video generation has emerged as a versatile tool for autonomous driving, enabling realistic synthesis of traffic scenarios. However, existing methods depend on control signals at inference time to guide the generative model…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Mirlan Karimov , Teodora Spasojevic , Markus Braun , Julian Wiederer , Vasileios Belagiannis , Marc Pollefeys

Affinity graph-based segmentation methods have become a major trend in computer vision. The performance of these methods relies on the constructed affinity graph, with particular emphasis on the neighborhood topology and pairwise affinities…

计算机视觉与模式识别 · 计算机科学 2021-10-25 Yang Zhang , Moyun Liu , Huiming Zhang , Guodong Sun , Jingwu He

Implicit feedback, such as user clicks, serves as the primary data source for modern recommender systems. However, click interactions inherently contain substantial noise, including accidental clicks, clickbait-induced interactions, and…

信息检索 · 计算机科学 2026-02-18 Xikai Yang , Yang Wang , Yilin Li , Sebastian Sun

In this work\footnote {This work was supported in part by the National Science Foundation under grant IIS-1212948.}, we present a method to represent a video with a sequence of words, and learn the temporal sequencing of such words as the…

计算机视觉与模式识别 · 计算机科学 2019-06-18 Sangwoo Cho , Hassan Foroosh

Unlabeled data learning has attracted considerable attention recently. However, it is still elusive to extract the expected high-level semantic feature with mere unsupervised learning. In the meantime, semi-supervised learning (SSL)…

计算机视觉与模式识别 · 计算机科学 2020-10-13 Tao Han , Junyu Gao , Yuan Yuan , Qi Wang

Image token removal is an efficient augmentation strategy for reducing the cost of computing image features. However, this efficient augmentation strategy has been found to adversely affect the accuracy of CLIP-based training. We…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Yifan Yang , Weiquan Huang , Yixuan Wei , Houwen Peng , Xinyang Jiang , Huiqiang Jiang , Fangyun Wei , Yin Wang , Han Hu , Lili Qiu , Yuqing Yang

Most existing real-time deep models trained with each frame independently may produce inconsistent results across the temporal axis when tested on a video sequence. A few methods take the correlations in the video sequence into…

计算机视觉与模式识别 · 计算机科学 2022-02-28 Yifan Liu , Chunhua Shen , Changqian Yu , Jingdong Wang

Spatio-temporal feature learning is of central importance for action recognition in videos. Existing deep neural network models either learn spatial and temporal features independently (C2D) or jointly with unconstrained parameters (C3D).…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Chao Li , Qiaoyong Zhong , Di Xie , Shiliang Pu