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This paper introduces Memory-limited Online Subspace Estimation Scheme (MOSES) for both estimating the principal components of streaming data and reducing its dimension. More specifically, in various applications such as sensor networks,…

Information Theory · Computer Science 2021-02-12 Armin Eftekhari , Raphael A. Hauser , Andreas Grammenos

Image retrieval remains a challenging task due to the complex interaction between human visual perception, memory, and computational processes. Current image search engines often struggle to efficiently retrieve images based on natural…

Information Retrieval · Computer Science 2025-04-16 Abraham Itzhak Weinberg

In the era of big data, it is becoming common to have data with multiple modalities or coming from multiple sources, known as "multi-view data". Multi-view data are usually unlabeled and come from high-dimensional spaces (such as language…

Machine Learning · Computer Science 2016-09-28 Weixiang Shao , Lifang He , Chun-Ta Lu , Xiaokai Wei , Philip S. Yu

The web information resources are growing explosively in number and volume. Now to retrieve relevant data from web has become very difficult and time-consuming. Semantic Web envisions that these web resources should be developed in…

Software Engineering · Computer Science 2010-06-24 Amjad Farooq , Syed Ahsan , Abad Shah

In this paper, we focus on semantically multi-modal image synthesis (SMIS) task, namely, generating multi-modal images at the semantic level. Previous work seeks to use multiple class-specific generators, constraining its usage in datasets…

Computer Vision and Pattern Recognition · Computer Science 2020-04-03 Zhen Zhu , Zhiliang Xu , Ansheng You , Xiang Bai

Open-set semi-supervised learning (open-set SSL) investigates a challenging but practical scenario where out-of-distribution (OOD) samples are contained in the unlabeled data. While the mainstream technique seeks to completely filter out…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Junkai Huang , Chaowei Fang , Weikai Chen , Zhenhua Chai , Xiaolin Wei , Pengxu Wei , Liang Lin , Guanbin Li

Hashing has been widely studied for big data retrieval due to its low storage cost and fast query speed. Zero-shot hashing (ZSH) aims to learn a hashing model that is trained using only samples from seen categories, but can generalize well…

Machine Learning · Computer Science 2019-08-21 Xuanwu Liu , Zhao Li , Jun Wang , Guoxian Yu , Carlotta Domeniconi , Xiangliang Zhang

Online string matching is a computational problem involving the search for patterns or substrings in a large text dataset, with the pattern and text being processed sequentially, without prior access to the entire text. Its relevance stems…

Data Structures and Algorithms · Computer Science 2023-10-25 Matthew N. Palmer , Simone Faro , Stefano Scafiti

In the real world, multi-modal data often appears in a streaming fashion, and there is a growing demand for similarity retrieval from such non-stationary data, especially at a large scale. In response to this need, online multi-modal…

Multimedia · Computer Science 2024-06-18 Yu-Wei Zhan , Xiao-Ming Wu , Xin Luo , Yinwei Wei , Xin-Shun Xu

Oversampled adaptive sensing (OAS) is a Bayesian framework recently proposed for effective sensing of structured signals in a time-limited setting. In contrast to the conventional blind oversampling, OAS uses the prior information on the…

Information Theory · Computer Science 2021-03-01 Ali Bereyhi , Saba Asaad , Ralf R. Müller

Vehicular networks are expected to support diverse content applications with multi-dimensional quality of service (QoS) requirements, which cannot be realized by the conventional one-fit-all network management method. In this paper, a…

Networking and Internet Architecture · Computer Science 2019-12-25 Shan Zhang , Hongbin Luo , Junling Li , Weisen Shi , Xuemin Shen

Machine Learning (ML) is continuously permeating a growing amount of application domains. Generative AI such as Large Language Models (LLMs) also sees broad adoption to process multi-modal data such as text, images, audio, and video. While…

Machine Learning · Computer Science 2024-07-18 Pierre Lamart , Yinan Yu , Christian Berger

The growth of conversational AI services has increased demand for effective information retrieval from dialogue data. However, existing methods often face challenges in capturing semantic intent or require extensive labeling and…

Information Retrieval · Computer Science 2025-03-07 Sangyeop Kim , Hangyeul Lee , Yohan Lee

We introduce MOS, a software application designed to facilitate the deployment, integration, management, and analysis of mathematical optimization models. MOS approaches mathematical optimization at a higher level of abstraction than…

Optimization and Control · Mathematics 2022-10-11 James Hubert Merrick , Tomás Tinoco De Rubira

Most current sampling algorithms for high-dimensional distributions are based on MCMC techniques and are approximate in the sense that they are valid only asymptotically. Rejection sampling, on the other hand, produces valid samples, but is…

Artificial Intelligence · Computer Science 2012-07-04 Marc Dymetman , Guillaume Bouchard , Simon Carter

Learning a hashing function for cross-media search is very desirable due to its low storage cost and fast query speed. However, the data crawled from Internet cannot always guarantee good correspondence among different modalities which…

Computer Vision and Pattern Recognition · Computer Science 2015-02-26 Yun Gu , Haoyang Xue , Jie Yang

Retrieval-Augmented Generation (RAG) expands the knowledge boundary of large language models (LLMs) at inference by retrieving external documents as context. However, retrieval becomes increasingly time-consuming as the knowledge databases…

Information Retrieval · Computer Science 2026-04-23 Peng Peng , Weiwei Lin , Wentai Wu , Xinyang Wang , Yongheng Liu

Providing high-quality item recall for text queries is crucial in large-scale e-commerce search systems. Current Embedding-based Retrieval Systems (ERS) embed queries and items into a shared low-dimensional space, but uni-modality ERS rely…

Information Retrieval · Computer Science 2024-08-28 Hao Jiang , Haoxiang Zhang , Qingshan Hou , Chaofeng Chen , Weisi Lin , Jingchang Zhang , Annan Wang

Multiview systems have become a key technology in modern computer vision, offering advanced capabilities in scene understanding and analysis. However, these systems face critical challenges in bandwidth limitations and computational…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Kosta Dakic , Kanchana Thilakarathna , Rodrigo N. Calheiros , Teng Joon Lim

The growing demands of artificial intelligence and immersive media require communication beyond bit-level accuracy to meaning awareness. Conventional optical systems that focused on syntactic precision suffer significant inefficiencies.…