Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback
    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    New Approaches To Photometric Redshift Prediction

    Metadata Updated: February 22, 2025

    Expanding upon the work of Way & Srivastava (2006) we demonstrate how the use of training sets of comparable size continue to make Gaussian Process Regression a competitive approach to that of Neural Networks and other least squares fitting methods. This is possible via new large size matrix inversion techniques developed for Gaussian Processes that do not require that the kernel matrix be sparse. This development, combined with a neural-network kernel function appears to give superior results for this problem. Our best t results for the Sloan Digital Sky Survey Main Galaxy Sample using u,g,r,i,z gives an rms error of 0.0201 while our results for the same in the Luminous Red Galaxy Sample yield 0.0220.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date February 22, 2025
    Metadata Updated Date February 22, 2025
    Data Update Frequency irregular

    Metadata Source

    Harvested from nasa test json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 22, 2025
    Metadata Updated Date February 22, 2025
    Publisher Dashlink
    Maintainer
    Identifier DASHLINK_166
    Data First Published 2010-09-22
    Data Last Modified 2025-02-19
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 9b920629-1977-47f1-9635-be0ae98a847c
    Harvest Source Id a73e0c30-4684-40ef-908e-d22e9e9e5f86
    Harvest Source Title nasa test json
    Homepage URL https://c3.nasa.gov/dashlink/resources/166/
    Program Code 026:029
    Source Datajson Identifier True
    Source Hash 57f02c1d0504d24a3c11382de56fba090bfb8e32aa19a52091b7932b93a46e06
    Source Schema Version 1.1

    Didn't find what you're looking for? Suggest a dataset here.