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In recent years, the increased need to house and process large volumes of data has prompted the need for distributed storage and querying systems. The growth of machine-readable RDF triples has prompted both industry and academia to develop…

数据库 · 计算机科学 2016-01-11 Albert Haque

Retrieving relevant tables containing the necessary information to accurately answer a given question over tables is critical to open-domain question-answering (QA) systems. Previous methods assume the answer to such a question can be found…

信息检索 · 计算机科学 2025-01-13 Peter Baile Chen , Yi Zhang , Dan Roth

Motivated by what is required for real-time path planning, the paper starts out by presenting sRMPD, a new recursive "local" planner founded on the key notion that, unless made necessary by an obstacle, there must be no deviation from the…

机器人学 · 计算机科学 2018-02-27 Fangda Li , Ankit V. Manerikar , Avinash C. Kak

Optimization tasks over relational data, such as clustering, often suffer from the prohibitive cost of join operations, which are necessary to access the full dataset. While geometric data structures like BBD trees yield fast approximation…

数据库 · 计算机科学 2026-03-13 Aryan Esmailpour , Stavros Sintos

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…

Database administrators construct secondary indexes on data tables to accelerate query processing in relational database management systems (RDBMSs). These indexes are built on top of the most frequently queried columns according to the…

数据库 · 计算机科学 2019-04-03 Yingjun Wu , Jia Yu , Yuanyuan Tian , Richard Sidle , Ronald Barber

We present a new compact representation to efficiently store and query large RDF datasets in main memory. Our proposal, called BMatrix, is based on the k2-tree, a data structure devised to represent binary matrices in a compressed way, and…

数据库 · 计算机科学 2020-02-27 Nieves R. Brisaboa , Ana Cerdeira-Pena , Guillermo de Bernardo , Antonio Fariña

We propose a visual query language for interactively exploring large-scale knowledge graphs. Starting from an overview, the user explores bar charts through three interactions: class expansion, property expansion, and subject/object…

数据库 · 计算机科学 2019-01-29 Oren Kalinsky , Oren Mishali , Aidan Hogan , Yoav Etsion , Benny Kimelfeld

Recent retrieval-augmented models enhance basic methods by building a hierarchical structure over retrieved text chunks through recursive embedding, clustering, and summarization. The most relevant information is then retrieved from both…

计算与语言 · 计算机科学 2024-10-03 Charbel Chucri , Rami Azouz , Joachim Ott

This paper introduces two novel approaches for Online Multi-Task Learning (MTL) Regression Problems. We employ a high performance graph-based MTL formulation and develop two alternative recursive versions based on the Weighted Recursive…

机器学习 · 统计学 2024-03-19 Gabriel R. Lencione , Fernando J. Von Zuben

Several centralised RDF systems support datalog reasoning by precomputing and storing all logically implied triples using the wellknown seminaive algorithm. Large RDF datasets often exceed the capacity of centralised RDF systems, and a…

数据库 · 计算机科学 2019-06-26 Temitope Ajileye , Boris Motik , Ian Horrocks

We propose a novel framework for fast integral operations by uncovering hidden geometries in the row and column structures of the underlying operators. This is accomplished through the \texttt{Questionnaire} algorithm, an iterative…

数值分析 · 数学 2026-02-27 Pei-Chun Su , Ronald R. Coifman

The rise of Large Language Models (LLMs) has sparked interest in their application to sequential recommendation tasks as they can provide supportive item information. However, due to the inherent complexities of sequential recommendation,…

信息检索 · 计算机科学 2023-12-19 Yu Wang , Zhiwei Liu , Jianguo Zhang , Weiran Yao , Shelby Heinecke , Philip S. Yu

Data analytics over normalized databases typically requires computing and materializing expensive joins (wide-tables). Factorized query execution models execution as message passing between relations in the join graph and pushes…

数据库 · 计算机科学 2022-10-11 Zezhou Huang , Eugene Wu

Online decision tree learning algorithms typically examine all features of a new data point to update model parameters. We propose a novel alternative, Reinforcement Learning- based Decision Trees (RLDT), that uses Reinforcement Learning…

机器学习 · 计算机科学 2015-07-27 Abhinav Garlapati , Aditi Raghunathan , Vaishnavh Nagarajan , Balaraman Ravindran

We consider running-time optimization for band-joins in a distributed system, e.g., the cloud. To balance load across worker machines, input has to be partitioned, which causes duplication. We explore how to resolve this tension between…

数据库 · 计算机科学 2020-04-15 Rundong Li , Wolfgang Gatterbauer , Mirek Riedewald

Replicated data types (RDTs) are data structures that permit concurrent modification of multiple, potentially geo-distributed, replicas without coordination between them. RDTs are designed in such a way that conflicting operations are…

编程语言 · 计算机科学 2022-03-29 Vimala Soundarapandian , Adharsh Kamath , Kartik Nagar , KC Sivaramakrishnan

In the evolving landscape of neural network models, one prominent challenge stand out: the significant memory overheads associated with training expansive models. Addressing this challenge, this study delves deep into the Rotated Tensor…

分布式、并行与集群计算 · 计算机科学 2023-11-06 Cheng Luo , Tianle Zhong , Geoffrey Fox

Resource Description Framework (RDF) data represents information linkage around the Internet. It uses Inter- nationalized Resources Identifier (IRI) which can be referred to external information. Typically, an RDF data is serialized as a…

分布式、并行与集群计算 · 计算机科学 2018-07-05 Chantana Chantrapornchai , Chidchanok Choksuchat

The forest-of-octrees approach to parallel adaptive mesh refinement and coarsening (AMR) has recently been demonstrated in the context of a number of large-scale PDE-based applications. Although linear octrees, which store only leaf…

分布式、并行与集群计算 · 计算机科学 2015-11-05 Tobin Isaac , Carsten Burstedde , Lucas C. Wilcox , Omar Ghattas