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Randomized subspace embedding methods have had a great impact on the solution of a linear least squares (LS) problem by reducing its row dimension, leading to a randomized or sketched LS (sLS) problem, and use the solution of the sLS…

数值分析 · 数学 2026-02-12 Zhongxiao Jia , Xinyuan Wan

Existing methods for instance segmentation in videos typically involve multi-stage pipelines that follow the tracking-by-detection paradigm and model a video clip as a sequence of images. Multiple networks are used to detect objects in…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Ali Athar , Sabarinath Mahadevan , Aljoša Ošep , Laura Leal-Taixé , Bastian Leibe

Many computer vision systems require low-cost segmentation algorithms based on deep learning, either because of the enormous size of input images or limited computational budget. Common solutions uniformly downsample the input images to…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Chen Jin , Ryutaro Tanno , Thomy Mertzanidou , Eleftheria Panagiotaki , Daniel C. Alexander

Our goal is to find combinations of facts that optimally summarize data sets. We consider this problem in the context of voice query interfaces for simple, exploratory data analysis. Here, the system answers voice queries with a short…

数据库 · 计算机科学 2021-03-22 Immanuel Trummer , Connor Anderson

Video frame sampling is essential for efficient long-video understanding with Vision-Language Models (VLMs), since dense inputs are costly and often exceed context limits. Yet when only a small number of frames can be retained, existing…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Mengyu Zhao , Di Fu , Yongyu Xie , Jiaxing Zhang , Zhigang Yuan , Shirin Jalali , Yong Cao

Monitoring network traffic data to detect any hidden patterns of anomalies is a challenging and time-consuming task that requires high computing resources. To this end, an appropriate summarization technique is of great importance, where it…

机器学习 · 计算机科学 2021-12-21 Samira Ghodratnama , Mehrdad Zakershahrak , Fariborz Sobhanmanesh

The ubiquitous availability of computing devices and the widespread use of the internet have generated a large amount of data continuously. Therefore, the amount of available information on any given topic is far beyond humans' processing…

人工智能 · 计算机科学 2023-07-11 Samira Ghodratnama

Multimodal abstractive summarization (MAS) aims to produce a concise summary given the multimodal data (text and vision). Existing studies mainly focus on how to effectively use the visual features from the perspective of an article, having…

计算机视觉与模式识别 · 计算机科学 2023-05-05 Yunlong Liang , Fandong Meng , Jinan Xu , Jiaan Wang , Yufeng Chen , Jie Zhou

Traditional video summarization methods generate fixed video representations regardless of user interest. Therefore such methods limit users' expectations in content search and exploration scenarios. Multi-modal video summarization is one…

计算机视觉与模式识别 · 计算机科学 2021-04-27 Jia-Hong Huang , Luka Murn , Marta Mrak , Marcel Worring

Few-shot video classification aims to learn new video categories with only a few labeled examples, alleviating the burden of costly annotation in real-world applications. However, it is particularly challenging to learn a class-invariant…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Songyang Zhang , Jiale Zhou , Xuming He

Video summaries come in many forms, from traditional single-image thumbnails, animated thumbnails, storyboards, to trailer-like video summaries. Content creators use the summaries to display the most attractive portion of their videos; the…

多媒体 · 计算机科学 2018-08-03 Hongxiang Gu , Viswanathan Swaminathan

One of the most pressing issues that have arisen due to the rapid growth of the Internet is known as information overloading. Simplifying the relevant information in the form of a summary will assist many people because the material on any…

计算与语言 · 计算机科学 2022-04-06 Divakar Yadav , Jalpa Desai , Arun Kumar Yadav

Many methods have been developed to help people find the video contents they want efficiently. However, there are still some unsolved problems in this area. For example, given a query video and a reference video, how to accurately localize…

计算机视觉与模式识别 · 计算机科学 2018-08-07 Yang Feng , Lin Ma , Wei Liu , Tong Zhang , Jiebo Luo

Real-world event sequences are often complex and heterogeneous, making it difficult to create meaningful visualizations using simple data aggregation and visual encoding techniques. Consequently, visualization researchers have developed…

人机交互 · 计算机科学 2023-06-06 Kazi Tasnim Zinat , Jinhua Yang , Arjun Gandhi , Nistha Mitra , Zhicheng Liu

Document summarisation can be formulated as a sequential decision-making problem, which can be solved by Reinforcement Learning (RL) algorithms. The predominant RL paradigm for summarisation learns a cross-input policy, which requires…

计算与语言 · 计算机科学 2019-07-31 Yang Gao , Christian M. Meyer , Mohsen Mesgar , Iryna Gurevych

Locality Sensitive Hashing (LSH) based algorithms have already shown their promise in finding approximate nearest neighbors in high dimen- sional data space. However, there are certain scenarios, as in sequential data, where the proximity…

计算机视觉与模式识别 · 计算机科学 2018-05-30 Angana Chakraborty , Sanghamitra Bandyopadhyay

The explosive growth of video data intensified the need for flexible user-controllable summarization tools that operate without training data. Existing methods either rely on domain-specific datasets, limiting generalization, or cannot…

计算机视觉与模式识别 · 计算机科学 2026-02-18 Mario Barbara , Alaa Maalouf

Iterative Hessian sketch (IHS) is an effective sketching method for modeling large-scale data. It was originally proposed by Pilanci and Wainwright (2016; JMLR) based on randomized sketching matrices. However, it is computationally…

机器学习 · 统计学 2020-03-10 Aijun Zhang , Hengtao Zhang , Guosheng Yin

In order to satisfy processing time constraints, many MIR tasks process only a segment of the whole music signal. This practice may lead to decreasing performance, since the most important information for the tasks may not be in those…

信息检索 · 计算机科学 2017-01-11 Francisco Raposo , Ricardo Ribeiro , David Martins de Matos

Long video summarization presents significant challenges for current multimodal large language models (MLLMs), particularly in maintaining temporal fidelity over extended durations and producing summaries that are both semantically and…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Alkesh Patel , Melis Ozyildirim , Ying-Chang Cheng , Ganesh Nagarajan