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Dense Retrieval (DR) has achieved state-of-the-art first-stage ranking effectiveness. However, the efficiency of most existing DR models is limited by the large memory cost of storing dense vectors and the time-consuming nearest neighbor…

Information Retrieval · Computer Science 2021-10-13 Jingtao Zhan , Jiaxin Mao , Yiqun Liu , Jiafeng Guo , Min Zhang , Shaoping Ma

Understanding and tuning the performance of extreme-scale parallel computing systems demands a streaming approach due to the computational cost of applying offline algorithms to vast amounts of performance log data. Analyzing large…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-01-28 Suraj P. Kesavan , Takanori Fujiwara , Jianping Kelvin Li , Caitlin Ross , Misbah Mubarak , Christopher D. Carothers , Robert B. Ross , Kwan-Liu Ma

Neural models have transformed the fundamental information retrieval problem of mapping a query to a giant set of items. However, the need for efficient and low latency inference forces the community to reconsider efficient approximate…

Information Retrieval · Computer Science 2021-03-19 Gaurav Gupta , Tharun Medini , Anshumali Shrivastava , Alexander J Smola

The integration of advanced video codecs into the streaming pipeline is growing in response to the increasing demand for high quality video content. However, the significant computational demand for advanced codecs like Versatile Video…

Multimedia · Computer Science 2023-12-14 Yiqun Liu , Hadi Amirpour , Mohsen Abdoli , Christian Timmerer , Thomas Guionnet

One of the challenges in deploying a machine learning model is that the model's performance degrades as the operating environment changes. To maintain the performance, streaming active learning is used, in which the model is retrained by…

Machine Learning · Computer Science 2023-12-18 Shota Horiguchi , Kota Dohi , Yohei Kawaguchi

Recent advances in video processing utilizing deep learning primitives achieved breakthroughs in fundamental problems in video analysis such as frame classification and object detection enabling an array of new applications. In this paper…

Databases · Computer Science 2020-02-26 Nick Koudas , Raymond Li , Ioannis Xarchakos

Deep pretrained transformer networks are effective at various ranking tasks, such as question answering and ad-hoc document ranking. However, their computational expenses deem them cost-prohibitive in practice. Our proposed approach, called…

Information Retrieval · Computer Science 2020-05-27 Sean MacAvaney , Franco Maria Nardini , Raffaele Perego , Nicola Tonellotto , Nazli Goharian , Ophir Frieder

Retrieval models are key components of Retrieval-Augmented Generation (RAG) systems, which generate search queries, process the documents returned, and generate a response. RAG systems are often dynamic and may involve multiple rounds of…

Information Retrieval · Computer Science 2026-01-16 Eugene Yang , Andrew Yates , Dawn Lawrie , James Mayfield , Trevor Adriaanse

Large-scale industrial recommender systems are usually confronted with computational problems due to the enormous corpus size. To retrieve and recommend the most relevant items to users under response time limits, resorting to an efficient…

Information Retrieval · Computer Science 2019-11-21 Han Zhu , Daqing Chang , Ziru Xu , Pengye Zhang , Xiang Li , Jie He , Han Li , Jian Xu , Kun Gai

This paper introduces Seeker, a system that allows users to interactively refine search rankings in real time, through feedback in the form of likes and dislikes. When searching online, users may not know how to accurately describe their…

Information Retrieval · Computer Science 2020-06-09 Ari Biswas , Thai T Pham , Michael Vogelsong , Benjamin Snyder , Houssam Nassif

Current state-of-the-art approaches to cross-modal retrieval process text and visual input jointly, relying on Transformer-based architectures with cross-attention mechanisms that attend over all words and objects in an image. While…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Gregor Geigle , Jonas Pfeiffer , Nils Reimers , Ivan Vulić , Iryna Gurevych

Modeling ultra-long user behavior sequences is critical for capturing both long- and short-term preferences in industrial recommender systems. Existing solutions typically rely on two-stage retrieval or indirect modeling paradigms, incuring…

Information Retrieval · Computer Science 2025-07-21 Zheng Chai , Qin Ren , Xijun Xiao , Huizhi Yang , Bo Han , Sijun Zhang , Di Chen , Hui Lu , Wenlin Zhao , Lele Yu , Xionghang Xie , Shiru Ren , Xiang Sun , Yaocheng Tan , Peng Xu , Yuchao Zheng , Di Wu

Video Large Language Models (Video-LLMs) excel at understanding videos in-context, provided they have full access to the video when answering queries. However, these models face challenges in streaming scenarios where hour-long videos must…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Vaggelis Dorovatas , Soroush Seifi , Gunshi Gupta , Rahaf Aljundi

Streaming data are increasingly present in real-world applications such as sensor measurements, satellite data feed, stock market, and financial data. The main characteristics of these applications are the online arrival of data…

Machine Learning · Computer Science 2020-07-01 Vinicius M. A. Souza , Denis M. dos Reis , Andre G. Maletzke , Gustavo E. A. P. A. Batista

Efficiently ranking relevant items from large candidate pools is a cornerstone of modern information retrieval systems -- such as web search, recommendation, and retrieval-augmented generation. Listwise rerankers, which improve relevance by…

Information Retrieval · Computer Science 2025-06-30 Evgeny Dedov

Diffusion models have shown superior performance in real-world video super-resolution (VSR). However, the slow processing speeds and heavy resource consumption of diffusion models hinder their practical application and deployment.…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Bowen Chai , Zheng Chen , Libo Zhu , Wenbo Li , Yong Guo , Yulun Zhang

Among the various means to evaluate the quality of video streams, No-Reference (NR) methods have low computation and may be executed on thin clients. Thus, NR algorithms would be perfect candidates in cases of real-time quality assessment,…

Multimedia · Computer Science 2016-04-28 Maria Torres Vega , Decebal Constantin Mocanu , Antonio Liotta

As industrial recommender systems enter a scaling-driven regime, Transformer architectures have become increasingly attractive for scaling models towards larger capacity and longer sequence. However, existing Transformer-based…

Information Retrieval · Computer Science 2026-02-17 Xu Huang , Hao Zhang , Zhifang Fan , Yunwen Huang , Zhuoxing Wei , Zheng Chai , Jinan Ni , Yuchao Zheng , Qiwei Chen

The cost-effective visual representation and fast query-by-example search are two challenging goals that should be maintained for web-scale visual retrieval tasks on moderate hardware. This paper introduces a fast and robust method that…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Savas Ozkan , Gozde Bozdagi Akar

Reinforcement Learning-based Recommender Systems (RLRS) have shown promise across a spectrum of applications, from e-commerce platforms to streaming services. Yet, they grapple with challenges, notably in crafting reward functions and…

Information Retrieval · Computer Science 2024-03-27 Siyu Wang , Xiaocong Chen , Lina Yao