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Related papers: Hierarchical Retrieval at Scale: Bridging Transpar…

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Visual localization algorithms have achieved significant improvements in performance thanks to recent advances in camera technology and vision-based techniques. However, there remains one critical caveat: all current approaches that are…

Computer Vision and Pattern Recognition · Computer Science 2019-07-01 Huu Le , Tuan Hoang , Michael Milford

Translating renderings (e. g. PDFs, scans) into hierarchical document structures is extensively demanded in the daily routines of many real-world applications. However, a holistic, principled approach to inferring the complete hierarchical…

Machine Learning · Computer Science 2021-01-26 Johannes Rausch , Octavio Martinez , Fabian Bissig , Ce Zhang , Stefan Feuerriegel

Forecasting is critical in areas such as finance, biology, and healthcare. Despite the progress in the field, making accurate forecasts remains challenging because real-world time series contain both global trends, local fine-grained…

Machine Learning · Computer Science 2026-01-01 Zihao Chen , Alexandre Andre , Wenrui Ma , Ian Knight , Sergey Shuvaev , Eva Dyer

The results of information retrieval (IR) are usually presented in the form of a ranked list of candidate documents, such as web search for humans and retrieval-augmented generation for large language models (LLMs). List-aware retrieval…

Information Retrieval · Computer Science 2024-02-06 Shicheng Xu , Liang Pang , Jun Xu , Huawei Shen , Xueqi Cheng

We propose an efficient pipeline for large-scale landmark image retrieval that addresses the diversity of the dataset through two-stage discriminative re-ranking. Our approach is based on embedding the images in a feature-space using a…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Shuhei Yokoo , Kohei Ozaki , Edgar Simo-Serra , Satoshi Iizuka

Retrieval-augmented generation (RAG) systems face significant challenges in multi-hop question answering (MHQA), where complex queries require synthesizing information across multiple document chunks. Existing approaches typically rely on…

Information Retrieval · Computer Science 2025-05-01 Zhonghao Li , Kunpeng Zhang , Jinghuai Ou , Shuliang Liu , Xuming Hu

We address the task of ranking objects (such as people, blogs, or verticals) that, unlike documents, do not have direct term-based representations. To be able to match them against keyword queries, evidence needs to be amassed from…

Information Retrieval · Computer Science 2017-08-30 Shuo Zhang , Krisztian Balog

The rise of large language models (LLMs) has significantly transformed both the construction and application of information retrieval (IR) systems. However, current interactions between IR systems and LLMs remain limited, with LLMs merely…

Information Retrieval · Computer Science 2024-11-05 Qiaoyu Tang , Jiawei Chen , Zhuoqun Li , Bowen Yu , Yaojie Lu , Cheng Fu , Haiyang Yu , Hongyu Lin , Fei Huang , Ben He , Xianpei Han , Le Sun , Yongbin Li

We develop a highly scalable optimization method called "hierarchical group-thresholding" for solving a multi-task regression model with complex structured sparsity constraints on both input and output spaces. Despite the recent emergence…

Machine Learning · Statistics 2012-08-16 Seunghak Lee , Eric P. Xing

We consider the design of adaptive data structures for searching elements of a tree-structured space. We use a natural generalization of the rotation-based online binary search tree model in which the underlying search space is the set of…

Data Structures and Algorithms · Computer Science 2019-08-05 Prosenjit Bose , Jean Cardinal , John Iacono , Grigorios Koumoutsos , Stefan Langerman

$\textbf{Motivation:}$ Hierarchical data structures are prevalent across several fields of research, as they represent an organised and efficient approach to study complex interconnected systems. Their significance is particularly evident…

Mathematical Software · Computer Science 2024-12-06 Giulio Benedetti , Ely Seraidarian , Theotime Pralas , Akewak Jeba , Tuomas Borman , Leo Lahti

Document retrieval has been an important research problem over many years in the information retrieval community. State-of-the-art techniques utilize various methods in matching documents to a given document including keywords, phrases, and…

Information Retrieval · Computer Science 2016-04-21 Kalpa Gunaratna

Existing information retrieval systems are largely constrained by their reliance on vector inner products to assess query-document relevance, which naturally limits the expressiveness of the relevance score they can produce. We propose a…

Information Retrieval · Computer Science 2025-05-02 Julian Killingback , Hansi Zeng , Hamed Zamani

Understanding the context of complex and cluttered scenes is a challenging problem for semantic segmentation. However, it is difficult to model the context without prior and additional supervision because the scene's factors, such as the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Hiroaki Aizawa , Yukihiro Domae , Kunihito Kato

Explaining why dense retrievers assign high relevance scores remains challenging because retrieval decisions are made through opaque high-dimensional embeddings. Existing explanations often focus on surface signals, such as lexical matches,…

Artificial Intelligence · Computer Science 2026-05-29 Zhixin Cai , Jun Bai , Yang Liu , Jiaqi Li , Yichi Zhang , Taichuan Li , Zhuofan Chen , Zixia Jia , Zilong Zheng , Wenge Rong

While large language models have demonstrated impressive capabilities in web navigation tasks, the extensive context of web pages, often represented as DOM or Accessibility Tree (AxTree) structures, frequently exceeds model context limits.…

Retrieval-Augmented Generation (RAG) systems enhance large language models (LLMs) by integrating external knowledge sources, enabling more accurate and contextually relevant responses tailored to user needs. However, existing RAG systems…

Information Retrieval · Computer Science 2025-04-29 Zirui Guo , Lianghao Xia , Yanhua Yu , Tu Ao , Chao Huang

Large language models (LLMs) achieve optimal utility when their responses are grounded in external knowledge sources. However, real-world documents, such as annual reports, scientific papers, and clinical guidelines, frequently combine…

Information Retrieval · Computer Science 2025-12-17 Chi Zhang , Qiyang Chen , Mengqi Zhang

Establishing the correspondences between newly acquired points and historically accumulated data (i.e., map) through nearest neighbors search is crucial in numerous robotic applications. However, static tree data structures are inadequate…

Robotics · Computer Science 2024-03-01 Jun Zhu , Hongyi Li , Zhepeng Wang , Shengjie Wang , Tao Zhang

Web search provides a promising way for people to obtain information and has been extensively studied. With the surgence of deep learning and large-scale pre-training techniques, various neural information retrieval models are proposed and…

Information Retrieval · Computer Science 2022-03-02 Yujia Zhou , Jing Yao , Zhicheng Dou , Ledell Wu , Ji-Rong Wen
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