1.1k citations · 6.4k across the 62 of their papers we have counts for
37 papers · 1 filter
SkyServer Traffic Report - The First Five Years
Vik Singh, Jim Gray, Ani Thakar +5
The SkyServer is an Internet portal to the Sloan Digital Sky Survey Catalog Archive Server. From 2001 to 2006, there were a million visitors in 3 million sessions generating 170 mi…
Cross-Matching Multiple Spatial Observations and Dealing with Missing Data
Jim Gray, Alex Szalay, Tamas Budavari +3
Cross-match spatially clusters and organizes several astronomical point-source measurements from one or more surveys. Ideally, each object would be found in each survey. Unfortunat…
The Zones Algorithm for Finding Points-Near-a-Point or Cross-Matching Spatial Datasets
Jim Gray, Maria A. Nieto-Santisteban, Alexander S. Szalay
Zones index an N-dimensional Euclidian or metric space to efficiently support points-near-a-point queries either within a dataset or between two datasets. The approach uses relatio…
Life Under Your Feet: An End-to-End Soil Ecology Sensor Network, Database, Web Server, and Analysis Service
Katalin Szlavecz, Andreas Terzis, Stuart Ozer +6
Wireless sensor networks can revolutionize soil ecology by providing measurements at temporal and spatial granularities previously impossible. This paper presents a soil monitoring…
To BLOB or Not To BLOB: Large Object Storage in a Database or a Filesystem?
Russell Sears, Catharine Van Ingen, Jim Gray
Application designers often face the question of whether to store large objects in a filesystem or in a database. Often this decision is made for application design simplicity. Som…
Large-Scale Query and XMatch, Entering the Parallel Zone
Maria A. Nieto-Santisteban, Aniruddha R. Thakar, Alexander S. Szalay +1
Current and future astronomical surveys are producing catalogs with millions and billions of objects. On-line access to such big datasets for data mining and cross-correlation is u…