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Learned sparse models such as SPLADE have successfully shown how to incorporate the benefits of state-of-the-art neural information retrieval models into the classical inverted index data structure. Despite their improvements in…

Information Retrieval · Computer Science 2024-04-23 Carlos Lassance , Hervé Dejean , Stéphane Clinchant , Nicola Tonellotto

Application tail latency is a key metric for many services, with high latencies being linked directly to loss of revenue. Modern deeply-nested micro-service architectures exacerbate tail latencies, increasing the likelihood of users…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-07-17 Andrew Jeffery , Chris Jensen , Richard Mortier

Similarity-based vector search facilitates many important applications such as search and recommendation but is limited by the memory capacity and bandwidth of a single machine due to large datasets and intensive data read. In this paper,…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-10 Xiangyu Zhi , Meng Chen , Xiao Yan , Baotong Lu , Hui Li , Qianxi Zhang , Qi Chen , James Cheng

Reinforcement fine-tuning (RFT) often suffers from reward over-optimization, where a policy model hacks the reward signals to achieve high scores while producing low-quality outputs. Our theoretical analysis shows that the key lies in…

Multi-task learning (MTL) aims to make full use of the knowledge contained in multi-task supervision signals to improve the overall performance. How to make the knowledge of multiple tasks shared appropriately is an open problem for MTL.…

Machine Learning · Computer Science 2021-03-02 Xiaokai Chen , Xiaoguang Gu , Libo Fu

Retrieval-Augmented Generation (RAG) is a crucial method for mitigating hallucinations in Large Language Models (LLMs) and integrating external knowledge into their responses. Existing RAG methods typically employ query rewriting to clarify…

Computation and Language · Computer Science 2025-02-26 Zhuocheng Zhang , Yang Feng , Min Zhang

Deep networks allow to obtain outstanding results in semantic segmentation, however they need to be trained in a single shot with a large amount of data. Continual learning settings where new classes are learned in incremental steps and…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Andrea Maracani , Umberto Michieli , Marco Toldo , Pietro Zanuttigh

Modern computationally-intensive applications often operate under time constraints, necessitating acceleration methods and distribution of computational workloads across multiple entities. However, the outcome is either achieved within the…

Information Theory · Computer Science 2024-02-13 Homa Esfahanizadeh , Alejandro Cohen , Shlomo Shamai , Muriel Medard

Crowdsourcing and data mining can be used to effectively reduce the effort associated with the partial replication and enhancement of qualitative studies. For example, in a primary study, other researchers explored factors influencing the…

Software Engineering · Computer Science 2019-02-13 Di Chen , Kathyrn Stolee , Tim Menzies

Long-Tailed Semi-Supervised Learning (LTSSL) aims to learn from class-imbalanced data where only a few samples are annotated. Existing solutions typically require substantial cost to solve complex optimization problems, or class-balanced…

Machine Learning · Computer Science 2022-05-27 Tong Wei , Qian-Yu Liu , Jiang-Xin Shi , Wei-Wei Tu , Lan-Zhe Guo

This paper considers the task of performing binary search under noisy decisions, focusing on the application of target area localization. In the presence of noise, the classical partitioning approach of binary search is prone to error…

Information Theory · Computer Science 2025-05-01 Kaan Buyukkalayci , Merve Karakas , Xinlin Li , Christina Fragouli

Query rewriting is essential for database performance optimization, but existing automated rule enumeration methods suffer from exponential search spaces, severe redundancy, and poor scalability, especially when handling complex query plans…

Databases · Computer Science 2026-03-09 Yuan Zhang , Yuxing Chen , Yuekun Yu , Jinbin Huang , Rui Mao , Anqun Pan , Lixiong Zheng , Jianbin Qin

Differentiable architecture search (DARTS) is an effective method for data-driven neural network design based on solving a bilevel optimization problem. Despite its success in many architecture search tasks, there are still some concerns…

Machine Learning · Computer Science 2022-06-27 Fanghui Xue , Yingyong Qi , Jack Xin

Differentiable neural architecture search (DARTS) has gained much success in discovering flexible and diverse cell types. To reduce the evaluation gap, the supernet is expected to have identical layers with the target network. However, even…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Tao Huang , Shan You , Yibo Yang , Zhuozhuo Tu , Fei Wang , Chen Qian , Changshui Zhang

Large language models (LLMs) have notably progressed in multi-step and long-chain reasoning. However, extending their reasoning capabilities to encompass deep interactions with search remains a non-trivial challenge, as models often fail to…

Computation and Language · Computer Science 2025-06-05 Qingfei Zhao , Ruobing Wang , Dingling Xu , Daren Zha , Limin Liu

In data centers, data replication is the primary method used to ensure availability of customer data. To avoid correlated failure, cloud storage infrastructure providers model hierarchical failure domains using a tree, and avoid placing a…

Data Structures and Algorithms · Computer Science 2017-04-21 K. Alex Mills , R. Chandrasekaran , Neeraj Mittal

Sequential recommendation (SR) learns user preferences based on their historical interaction sequences and provides personalized suggestions. In real-world scenarios, most users can only interact with a handful of items, while the majority…

Information Retrieval · Computer Science 2026-01-19 Yizhou Dang , Zhifu Wei , Minhan Huang , Lianbo Ma , Jianzhe Zhao , Guibing Guo , Xingwei Wang

We propose a novel application of coded computing to the problem of the nearest neighbor estimation using MatDot Codes [Fahim. et.al. 2017], that are known to be optimal for matrix multiplication in terms of recovery threshold under storage…

Information Theory · Computer Science 2018-11-30 Utsav Sheth , Sanghamitra Dutta , Malhar Chaudhari , Haewon Jeong , Yaoqing Yang , Jukka Kohonen , Teemu Roos , Pulkit Grover

Information retrieval is a core component of many intelligent systems as it enables conditioning of outputs on new and large-scale datasets. While effective, the standard practice of encoding data into high-dimensional representations for…

Information Retrieval · Computer Science 2026-02-16 Shubham Gupta , Zichao Li , Tianyi Chen , Cem Subakan , Siva Reddy , Perouz Taslakian , Valentina Zantedeschi

State of the art image retrieval performance is achieved with CNN features and manifold ranking using a k-NN similarity graph that is pre-computed off-line. The two most successful existing approaches are temporal filtering, where manifold…

Computer Vision and Pattern Recognition · Computer Science 2018-11-26 Ahmet Iscen , Yannis Avrithis , Giorgos Tolias , Teddy Furon , Ondrej Chum