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Retrieval systems rely on representations learned by increasingly powerful models. However, due to the high training cost and inconsistencies in learned representations, there is significant interest in facilitating communication between…

机器学习 · 计算机科学 2026-05-20 Simone Ricci , Niccolò Biondi , Federico Pernici , Ioannis Patras , Alberto Del Bimbo

The instability of embedding spaces across model retraining cycles presents significant challenges to downstream applications using user or item embeddings derived from recommendation systems as input features. This paper introduces a novel…

信息检索 · 计算机科学 2025-08-12 Kevin Zielnicki , Ko-Jen Hsiao

Enforcing orthogonality in neural networks is an antidote for gradient vanishing/exploding problems, sensitivity by adversarial perturbation, and bounding generalization errors. However, many previous approaches are heuristic, and the…

机器学习 · 计算机科学 2021-06-18 Jiahao Su , Wonmin Byeon , Furong Huang

Visual retrieval systems face significant challenges when updating models with improved representations due to misalignment between the old and new representations. The costly and resource-intensive backfilling process involves…

计算机视觉与模式识别 · 计算机科学 2024-08-19 Simone Ricci , Niccolò Biondi , Federico Pernici , Alberto Del Bimbo

The modeling and simulation of high-dimensional multiscale systems is a critical challenge across all areas of science and engineering. It is broadly believed that even with today's computer advances resolving all spatiotemporal scales…

While Large Language Models (LLM) enable non-experts to specify open-world multi-robot tasks, the generated plans often lack kinematic feasibility and are not efficient, especially in long-horizon scenarios. Formal methods like Linear…

机器人学 · 计算机科学 2026-02-11 Shuyuan Hu , Tao Lin , Kai Ye , Yang Yang , Tianwei Zhang

This paper proposes a structure-aware decoding method based on large language models to address the difficulty of traditional approaches in maintaining both semantic integrity and structural consistency in nested and overlapping entity…

计算与语言 · 计算机科学 2026-01-29 Zhimin Qiu , Di Wu , Feng Liu , Yuxiao Wang

Large collections of tabular data from data lakes, web tables and open data portals often originate from heterogeneous sources, leading to representational inconsistencies. Understanding and organizing such repositories therefore remains a…

数据库 · 计算机科学 2026-05-27 Zhenyu Wu , Jiaoyan Chen , Norman W. Paton

Large collections of tabular data from data lakes, web tables and open data portals often originate from heterogeneous sources, leading to representational inconsistencies. Understanding and organizing such repositories therefore remains a…

数据库 · 计算机科学 2026-05-27 Zhenyu Wu , Jiaoyan Chen , Norman W. Paton

Accurately aligning contextual representations in cross-lingual sentence embeddings is key for effective parallel data mining. A common strategy for achieving this alignment involves disentangling semantics and language in sentence…

计算与语言 · 计算机科学 2025-09-03 Dayeon Ki , Cheonbok Park , Hyunjoong Kim

Document parsing is a fundamental task in multimodal understanding, supporting a wide range of downstream applications such as information extraction and intelligent document analysis. Benefiting from strong semantic modeling and robust…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Wenhui Liao , Hongliang Li , Pengyu Xie , Xinyu Cai , Yufan Shen , Yi Xin , Qi Qin , Shenglong Ye , Tianbin Li , Ming Hu , Junjun He , Yihao Liu , Wenhai Wang , Min Dou , Bin Fu , Botian Shi , Yu Qiao , Lianwen Jin

This paper proposes a hierarchical attentional neural translation model which focuses on enhancing source-side hierarchical representations by covering both local and global semantic information using a bidirectional tree-based encoder. To…

计算与语言 · 计算机科学 2017-07-18 Baosong Yang , Derek F. Wong , Tong Xiao , Lidia S. Chao , Jingbo Zhu

Tree embedding has been a fundamental method in algorithm design with wide applications. We focus on the efficiency of building tree embedding in various computational settings under high-dimensional Euclidean $\mathbb{R}^d$. We devise a…

数据结构与算法 · 计算机科学 2026-01-13 Gramoz Goranci , Shaofeng H. -C. Jiang , Peter Kiss , Qihao Kong , Yi Qian , Eva Szilagyi

This paper employs a localized orthogonal decomposition (LOD) method with $H^1$ interpolation for solving the multiscale elliptic problem. This method does not need any assumptions on scale separation. We give a priori error estimate for…

数值分析 · 数学 2024-11-04 Tao Yu , Xingye Yue

Image Retrieval is a fundamental task of obtaining images similar to the query one from a database. A common image retrieval practice is to firstly retrieve candidate images via similarity search using global image features and then re-rank…

计算机视觉与模式识别 · 计算机科学 2021-08-12 Min Yang , Dongliang He , Miao Fan , Baorong Shi , Xuetong Xue , Fu Li , Errui Ding , Jizhou Huang

In this paper we present algorithms for an efficient implementation of the Localized Orthogonal Decomposition method (LOD). The LOD is a multiscale method for the numerical simulation of partial differential equations with a continuum of…

数值分析 · 数学 2019-02-21 Christian Engwer , Patrick Henning , Axel Målqvist , Daniel Peterseim

Semantic data and knowledge infrastructures must reconcile two fundamentally different forms of representation: natural language, in which most knowledge is created and communicated, and formal semantic models, which enable…

计算与语言 · 计算机科学 2026-03-24 Lars Vogt

Traditional closed-set 3D detection frameworks fail to meet the demands of open-world applications like autonomous driving. Existing open-vocabulary 3D detection methods typically adopt a two-stage pipeline consisting of pseudo-label…

计算机视觉与模式识别 · 计算机科学 2025-08-19 Qi Liu , Yabei Li , Hongsong Wang , Lei He

Large language models (LLMs) are primarily designed to understand unstructured text. When directly applied to structured formats such as tabular data, they may struggle to discern inherent relationships and overlook critical patterns. While…

机器学习 · 计算机科学 2024-10-11 Natraj Raman , Sumitra Ganesh , Manuela Veloso

This paper presents a structure-exploiting nonlinear model reduction method for systems with general nonlinearities. First, the nonlinear model is lifted to a model with more structure via variable transformations and the introduction of…

数值分析 · 计算机科学 2019-07-30 Boris Kramer , Karen Willcox