{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "undefined", "hasEmail": "mailto:sdps@oceancolor.gsfc.nasa.gov"}, "description": "The use of Gaussian processes can be an effective approach to prediction in a supervised learning environment. For large data sets, the standard Gaussian process approach requires solving very large systems of linear equations and approximations are required for the calculations to be practical. We will focus on the subset of regressors approximation technique. We will demonstrate that there can be numerical instabilities in a well known implementation of the technique. We discuss alternate implementations that have better numerical stability properties and can lead to better predictions. Our results will be illustrated by looking at an application involving prediction of galaxy redshift  from broadband spectrum data.", "distribution": [{"@type": "dcat:Distribution", "description": "NASA Ocean Color Web - Algorithm Description Documentation", "downloadURL": "https://oceancolor.gsfc.nasa.gov/resources/atbd/", "format": "HTML", "mediaType": "text/html", "title": "View this dataset's algorithm theoretical basis document"}, {"@type": "dcat:Distribution", "description": "NASA Ocean Color Web - Data Citation Guidelines", "downloadURL": "https://oceancolor.gsfc.nasa.gov/resources/how-to-cite/", "format": "HTML", "mediaType": "text/html", "title": "View information related to this dataset"}, {"@type": "dcat:Distribution", "description": "NASA Ocean Color Web - Data Distribution Site", "downloadURL": "https://oceandata.sci.gsfc.nasa.gov/directdataaccess/Level-2/SNPP-VIIRS/", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through a directory map"}, {"@type": "dcat:Distribution", "description": "NASA Ocean Color Web - Processing History", "downloadURL": "https://oceancolor.gsfc.nasa.gov/data/reprocessing/", "format": "HTML", "mediaType": "text/html", "title": "View this dataset's processing history"}], "identifier": "DASHLINK_153", "issued": "2010-09-22", "keyword": ["ames", "dashlink", "nasa"], "landingPage": "https://c3.nasa.gov/dashlink/resources/153/", "modified": "2025-03-31", "programCode": ["026:029"], "publisher": {"@type": "org:Organization", "name": "Dashlink"}, "title": "Stable and Efficient Gaussian Process Calculations"}