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相关论文: Mining Frequent Itemsets (MFI) over Data Streams: …

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Many automated systems need the capability of automatic change detection without the given detection threshold. This paper presents an automated change detection algorithm in streaming multivariate data. Two overlapping windows are used to…

数据库 · 计算机科学 2013-11-05 Dang-Hoan Tran

To manage the complexity of transformers in video compression, local attention mechanisms are a practical necessity. The common approach of partitioning frames into patches, however, creates architectural flaws like irregular receptive…

图像与视频处理 · 电气工程与系统科学 2025-10-07 Alexander Kopte , André Kaup

With an increasing outreach of digital platforms in our lives, researchers have taken a keen interest to study different facets of social interactions that seem to be evolving rapidly. Analysing the spread of information (aka diffusion) has…

社会与信息网络 · 计算机科学 2022-08-23 Dhruv Sahnan , Vasu Goel , Sarah Masud , Chhavi Jain , Vikram Goyal , Tanmoy Chakraborty

Video captioning is a challenging task that captures different visual parts and describes them in sentences, for it requires visual and linguistic coherence. The attention mechanism in the current video captioning method learns to assign…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Zhixin Sun , Xian Zhong , Shuqin Chen , Lin Li , Luo Zhong

Visual (image, video) quality assessments can be modelled by visual features in different domains, e.g., spatial, frequency, and temporal domains. Perceptual mechanisms in the human visual system (HVS) play a crucial role in generation of…

图像与视频处理 · 电气工程与系统科学 2022-08-23 Junyong You , Zheng Zhang

Monitoring the behavior of automated real-time stream processing systems has become one of the most relevant problems in real world applications. Such systems have grown in complexity relying heavily on high dimensional input data, and data…

Despite recent advances in Vision-Language Models (VLMs), long-video understanding remains a challenging problem. Although state-of-the-art long-context VLMs can process around 1000 input frames, they still struggle to effectively leverage…

机器学习 · 计算机科学 2025-07-04 Anurag Arnab , Ahmet Iscen , Mathilde Caron , Alireza Fathi , Cordelia Schmid

Learning continually from a stream of non-i.i.d. data is an open challenge in deep learning, even more so when working in resource-constrained environments such as embedded devices. Visual models that are continually updated through…

人工智能 · 计算机科学 2025-07-30 Clea Rebillard , Julio Hurtado , Andrii Krutsylo , Lucia Passaro , Vincenzo Lomonaco

Finding frequent itemsets in a data source is a fundamental operation behind Association Rule Mining. Generally, many algorithms use either the bottom-up or top-down approaches for finding these frequent itemsets. When the length of…

数据库 · 计算机科学 2011-09-13 M. Rajalakshmi , Dr. T. Purusothaman , Dr. R. Nedunchezhian

Visual artifacts are often introduced into streamed video content, due to prevailing conditions during content production and delivery. Since these can degrade the quality of the user's experience, it is important to automatically and…

图像与视频处理 · 电气工程与系统科学 2025-06-03 Chen Feng , Duolikun Danier , Fan Zhang , Alex Mackin , Andrew Collins , David Bull

Frame selection is crucial due to high frame redundancy and limited context windows when applying Large Vision-Language Models (LVLMs) to long videos. Current methods typically select frames with high relevance to a given query, resulting…

计算机视觉与模式识别 · 计算机科学 2026-03-18 Wang Chen , Yuhui Zeng , Yongdong Luo , Tianyu Xie , Luojun Lin , Jiayi Ji , Yan Zhang , Xiawu Zheng

Data subset selection aims to find a smaller yet informative subset of a large dataset that can approximate the full-dataset training, addressing challenges associated with training neural networks on large-scale datasets. However, existing…

机器学习 · 计算机科学 2024-06-06 Hoyong Choi , Nohyun Ki , Hye Won Chung

Vision Transformers (ViTs) have achieved impressive results in computer vision by leveraging self-attention to model long-range dependencies. However, their emphasis on global context often comes at the expense of local feature extraction…

计算机视觉与模式识别 · 计算机科学 2025-09-12 Puskal Khadka , Rodrigue Rizk , Longwei Wang , KC Santosh

Search queries are appropriate when users have explicit intent, but they perform poorly when the intent is difficult to express or if the user is simply looking to be inspired. Visual browsing systems allow e-commerce platforms to address…

The tasks of extracting (top-$K$) Frequent Itemsets (FI's) and Association Rules (AR's) are fundamental primitives in data mining and database applications. Exact algorithms for these problems exist and are widely used, but their running…

数据结构与算法 · 计算机科学 2015-03-19 Matteo Riondato , Eli Upfal

There have been many recent studies on sequential pattern mining. The sequential pattern mining on progressive databases is relatively very new, in which we progressively discover the sequential patterns in period of interest. Period of…

数据库 · 计算机科学 2010-07-15 B. N. Keshavamurthy , Mitesh Sharma , Durga Toshniwal

The proliferation of sensing and monitoring applications motivates adoption of the event stream model of computation. Though sliding windows are widely used to facilitate effective event stream processing, it is greatly challenged when the…

分布式、并行与集群计算 · 计算机科学 2011-11-15 Yiling Yang , Yu Huang , Jiannong Cao , Xiaoxing Ma , Jian Lu

We study a fast local-global window-based attention method to accelerate Informer for long sequence time-series forecasting. While window attention being local is a considerable computational saving, it lacks the ability to capture global…

机器学习 · 计算机科学 2024-04-18 Nhat Thanh Tran , Jack Xin

Video summarization is among challenging tasks in computer vision, which aims at identifying highlight frames or shots over a lengthy video input. In this paper, we propose an novel attention-based framework for video summarization with…

计算机视觉与模式识别 · 计算机科学 2020-06-04 Yen-Ting Liu , Yu-Jhe Li , Yu-Chiang Frank Wang

In this paper, we strengthen the competitive analysis results obtained for a fundamental online streaming problem, the Frequent Items Problem. Additionally, we contribute with a more detailed analysis of this problem, using alternative…

数据结构与算法 · 计算机科学 2013-06-05 Joan Boyar , Kim S. Larsen , Abyayananda Maiti