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Event detection and text reasoning have become critical applications across various domains. While LLMs have recently demonstrated impressive progress in reasoning abilities, they often struggle with event detection, particularly due to the…

Computation and Language · Computer Science 2024-09-04 Mazal Bethany , Emet Bethany , Brandon Wherry , Cho-Yu Chiang , Nishant Vishwamitra , Anthony Rios , Peyman Najafirad

Supervised Fine-Tuning (SFT) Large Language Models (LLM) fundamentally rely on high-quality training data. While data selection and data synthesis are two common strategies to improve data quality, existing approaches often face limitations…

Computation and Language · Computer Science 2025-10-23 Zinan Tang , Xin Gao , Qizhi Pei , Zhuoshi Pan , Mengzhang Cai , Jiang Wu , Conghui He , Lijun Wu

Using deep learning, we now have the ability to create exceptionally good semantic segmentation systems; however, collecting the prerequisite pixel-wise annotations for training images remains expensive and time-consuming. Therefore, it…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Aneesh Rangnekar , Christopher Kanan , Matthew Hoffman

In many sequential tasks, a model needs to remember relevant events from the distant past to make correct predictions. Unfortunately, a straightforward application of gradient based training requires intermediate computations to be stored…

Machine Learning · Computer Science 2023-08-14 Artyom Sorokin , Nazar Buzun , Leonid Pugachev , Mikhail Burtsev

The segmentation and tracking of living cells play a vital role within the biomedical domain, particularly in cancer research, drug development, and developmental biology. These are usually tedious and time-consuming tasks that are…

Image and Video Processing · Electrical Eng. & Systems 2024-03-27 Rüveyda Yilmaz , Dennis Eschweiler , Johannes Stegmaier

This paper studies the problem of semi-supervised video object segmentation(VOS). Multiple works have shown that memory-based approaches can be effective for video object segmentation. They are mostly based on pixel-level matching, both…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 Li Hu , Peng Zhang , Bang Zhang , Pan Pan , Yinghui Xu , Rong Jin

This paper proposes a Short-Window Sliding Learning framework for real-time violence detection in CCTV footages. Unlike conventional long-video training approaches, the proposed method divides videos into 1-2 second clips and applies Large…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Seoik Jung , Taekyung Song , Yangro Lee , Sungjun Lee

LSTM-based speaker verification usually uses a fixed-length local segment randomly truncated from an utterance to learn the utterance-level speaker embedding, while using the average embedding of all segments of a test utterance to verify…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-05 Bin Liu , Shuai Nie , Yaping Zhang , Shan Liang , Wenju Liu

This paper proposes a method for long-term action anticipation (LTA), the task of predicting action labels and their duration in a video given the observation of an initial untrimmed video interval. We build on an encoder-decoder…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Alberto Maté , Mariella Dimiccoli

Surveillance videos are able to capture a variety of realistic anomalies. In this paper, we propose to learn anomalies by exploiting both normal and anomalous videos. To avoid annotating the anomalous segments or clips in training videos,…

Computer Vision and Pattern Recognition · Computer Science 2019-02-15 Waqas Sultani , Chen Chen , Mubarak Shah

The performance of Video Instance Segmentation (VIS) methods has improved significantly with the advent of transformer networks. However, these networks often face challenges in training due to the high annotation cost. To address this,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Farnoosh Arefi , Amir M. Mansourian , Shohreh Kasaei

Weakly supervised video anomaly detection (WS-VAD) is tasked with pinpointing temporal intervals containing anomalous events within untrimmed videos, utilizing only video-level annotations. However, a significant challenge arises due to the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Yu Wang , Shiwei Chen

Instance segmentation enables the analysis of spatial and temporal properties of cells in microscopy images by identifying the pixels belonging to each cell. However, progress is constrained by the scarcity of high-quality labeled…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Kaden Stillwagon , Alexandra Dunnum VandeLoo , Benjamin Magondu , Craig R. Forest

Recognising actions in videos relies on labelled supervision during training, typically the start and end times of each action instance. This supervision is not only subjective, but also expensive to acquire. Weak video-level supervision…

Computer Vision and Pattern Recognition · Computer Science 2019-04-10 Davide Moltisanti , Sanja Fidler , Dima Damen

Weakly supervised video object segmentation (WSVOS) enables the identification of segmentation maps without requiring an extensive training dataset of object masks, relying instead on coarse video labels indicating object presence. Current…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Guiqiu Liao , Matjaz Jogan , Sai Koushik , Eric Eaton , Daniel A. Hashimoto

Classifying videos according to content semantics is an important problem with a wide range of applications. In this paper, we propose a hybrid deep learning framework for video classification, which is able to model static spatial…

Computer Vision and Pattern Recognition · Computer Science 2015-04-08 Zuxuan Wu , Xi Wang , Yu-Gang Jiang , Hao Ye , Xiangyang Xue

We introduce ViSMap: Unsupervised Video Summarisation by Meta Prompting, a system to summarise hour long videos with no-supervision. Most existing video understanding models work well on short videos of pre-segmented events, yet they…

Computer Vision and Pattern Recognition · Computer Science 2025-04-23 Jian Hu , Dimitrios Korkinof , Shaogang Gong , Mariano Beguerisse-Diaz

In recent years, human activity recognition has garnered considerable attention both in industrial and academic research because of the wide deployment of sensors, such as accelerometers and gyroscopes, in products such as smartphones and…

Signal Processing · Electrical Eng. & Systems 2021-03-08 Bolu Oluwalade , Sunil Neela , Judy Wawira , Tobiloba Adejumo , Saptarshi Purkayastha

This paper studies the joint learning of action recognition and temporal localization in long, untrimmed videos. We employ a multi-task learning framework that performs the three highly related steps of action proposal, action recognition,…

Computer Vision and Pattern Recognition · Computer Science 2017-04-05 Yi Zhu , Shawn Newsam

Deep video recognition is more computationally expensive than image recognition, especially on large-scale datasets like Kinetics [1]. Therefore, training scalability is essential to handle a large amount of videos. In this paper, we study…

Computer Vision and Pattern Recognition · Computer Science 2019-12-10 Ji Lin , Chuang Gan , Song Han