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Large Language Models (LLMs) have made significant progress in assisting users to query databases in natural language. While LLM-based techniques provide state-of-the-art results on many standard benchmarks, their performance significantly…

人工智能 · 计算机科学 2024-07-09 Nina Narodytska , Shay Vargaftik

Datasets with tens of millions of galaxies present new challenges for the analysis of spatial clustering. We have built a framework that integrates a database of object catalogs, tools for creating masks of bad regions, and a fast (NlogN)…

High-volume feature-rich data sets are becoming the bread-and-butter of 21st century astronomy but present significant challenges to scientific discovery. In particular, identifying scientifically significant relationships between sets of…

天体物理仪器与方法 · 物理学 2015-06-15 Matthew J. Graham , S. G. Djorgovski , Ashish A. Mahabal , Ciro Donalek , Andrew J. Drake

In this paper, we address the problem of searching for semantically similar images from a large database. We present a compact coding approach, supervised quantization. Our approach simultaneously learns feature selection that linearly…

计算机视觉与模式识别 · 计算机科学 2019-02-05 Xiaojuan Wang , Ting Zhang , Guo-Jun Q , Jinhui Tang , Jingdong Wang

A set of preferred records can be obtained from a large database in a multi-criteria setting using various computational methods which either depend on the concept of dominance or on the concept of utility or scoring function based on the…

数据库 · 计算机科学 2022-03-18 Anagha Radhakrishnan

HRDBMS is a novel distributed relational database that uses a hybrid model combining the best of traditional distributed relational databases and Big Data analytics platforms such as Hive. This allows HRDBMS to leverage years worth of…

数据库 · 计算机科学 2019-01-28 Jason Arnold , Boris Glavic , Ioan Raicu

High-quality datasets are typically required for accomplishing data-driven tasks, such as training medical diagnosis models, predicting real-time traffic conditions, or conducting experiments to validate research hypotheses. Consequently,…

信息检索 · 计算机科学 2025-09-03 Pengyue Li , Sheng Wang , Hua Dai , Zhiyu Chen , Zhifeng Bao , Brian D. Davison

To accommodate the needs of large-scale distributed P2P systems, scalable data management strategies are required, allowing applications to efficiently cope with continuously growing, highly dis tributed data. This paper addresses the…

分布式、并行与集群计算 · 计算机科学 2009-09-30 Bogdan Nicolae , Gabriel Antoniu , Luc Bougé

In the last few years, much effort has been devoted to developing join algorithms in order to achieve worst-case optimality for join queries over relational databases. Towards this end, the database community has had considerable success in…

数据库 · 计算机科学 2020-03-02 Shaleen Deep , Xiao Hu , Paraschos Koutris

Database queries traditionally operate under the closed-world assumption, providing no answers to questions that require information beyond the data stored in the database. Hybrid querying using SQL offers an alternative by integrating…

数据库 · 计算机科学 2024-11-19 Fuheng Zhao , Divyakant Agrawal , Amr El Abbadi

Astronomical researchers often think of analysis and visualization as separate tasks. In the case of high-dimensional data sets, though, interactive exploratory data visualization can give far more insight than an approach where data…

天体物理仪器与方法 · 物理学 2015-06-05 Alyssa A. Goodman

A major challenge in modern radio astronomy is dealing with the massive data volumes generated by wide-bandwidth receivers. Such massive data rates are often too great for a single device to cope, and so processing must be split across…

天体物理仪器与方法 · 物理学 2022-02-23 Danny C. Price

Scientists in all domains face a data avalanche - both from better instruments and from improved simulations. We believe that computer science tools and computer scientists are in a position to help all the sciences by building tools and…

数据库 · 计算机科学 2007-05-23 Jim Gray , Alexander S. Szalay

The multi relational data mining approach has developed as an alternative way for handling the structured data such that RDBMS. This will provides the mining in multiple tables directly. In MRDM the patterns are available in multiple tables…

数据库 · 计算机科学 2012-11-19 Neelamadhab Padhy , Rasmita Panigrahi

Two emerging hardware trends will dominate the database system technology in the near future: increasing main memory capacities of several TB per server and massively parallel multi-core processing. Many algorithmic and control techniques…

数据库 · 计算机科学 2012-07-03 Martina-Cezara Albutiu , Alfons Kemper , Thomas Neumann

We describe the application of data mining algorithms to research problems in astronomy. We posit that data mining has always been fundamental to astronomical research, since data mining is the basis of evidence-based discovery, including…

天体物理仪器与方法 · 物理学 2009-11-04 Kirk Borne

This paper introduces the large scale visual search algorithm and system infrastructure at Alibaba. The following challenges are discussed under the E-commercial circumstance at Alibaba (a) how to handle heterogeneous image data and bridge…

计算机视觉与模式识别 · 计算机科学 2021-02-10 Yanhao Zhang , Pan Pan , Yun Zheng , Kang Zhao , Yingya Zhang , Xiaofeng Ren , Rong Jin

Data exploration and visualization systems are of great importance in the Big Data era. Exploring and visualizing very large datasets has become a major research challenge, of which scalability is a vital requirement. In this survey, we…

人机交互 · 计算机科学 2016-02-01 Nikos Bikakis , Timos Sellis

In the era of big data astronomy, next generation telescopes and large sky surveys produce data sets at the TB or even PB level. Due to their large data volumes, these astronomical data sets are extremely difficult to transfer and analyze…

Quantum circuit simulation is crucial for quantum computing such as validating quantum algorithms. We present Qymera, a system that repurposes relational database management systems (RDBMSs) for simulation by translating circuits into SQL…

量子物理 · 物理学 2025-06-11 Tim Littau , Rihan Hai