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Mariana

Published by Dashlink | National Aeronautics and Space Administration | Catalog Last Checked: November 04, 2026 at 02:05 AM | Dataset Last Updated: March 31, 2025
The Mariana source code has been open sourced. Download the tar file Mariana.tgz below. I would love feedback. Mariana is an auto-classifier algorithm that efficiently optimizes hyperparameters for Support Vector Machines. Mariana is an algorithm that efficiently optimizes the hyperparameters for Support Vector Machines for regression and classification. It currently uses Simulated Annealing for optimization but can be extended to use a variety of stochastic optimization techniques including, Markov Chain Monte Carlo, Sequential Monte Carlo, and Genetic Algorithms. Mariana can be applied to the text portion of reports, determining the likely categories that each report falls into, and calculating a confidence for each classification. Mariana¹s innovation is it automates the search for the optimum hyperparameters. It does so by randomly selecting a set of hyperparameters. Next it builds a model from the training data and tests the model's performance using the validation set. That performance is compared to previous performances, and if the current set of hyperparameters are better than the previous one, then it records the hyperparameters. This process is repeated until there are no noticeable improvements in performance or at a predefined stopping point.

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  • Download this dataset through a directory map

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  • Use OPeNDAP to access the dataset's data

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  • This dataset's landing page

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  • View documentation related to this dataset

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  • View documentation related to this dataset

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  • View documentation related to this dataset

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  • View this dataset's read me document

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  • View documentation related to this dataset

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  • The dataset's project home page

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  • Get a related visualization through GIOVANNI

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  • Download this dataset through Earthdata Search

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Complete Metadata
@type dcat:Dataset
accessLevel public
accrualPeriodicity irregular
bureauCode 
[
  "026:00"
]
contactPoint 
{
  "fn": "ANDREY SAVTCHENKO",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:Andrey.Savtchenko@nasa.gov"
}
description The Mariana source code has been open sourced. Download the tar file Mariana.tgz below. I would love feedback. Mariana is an auto-classifier algorithm that efficiently optimizes hyperparameters for Support Vector Machines. Mariana is an algorithm that efficiently optimizes the hyperparameters for Support Vector Machines for regression and classification. It currently uses Simulated Annealing for optimization but can be extended to use a variety of stochastic optimization techniques including, Markov Chain Monte Carlo, Sequential Monte Carlo, and Genetic Algorithms. Mariana can be applied to the text portion of reports, determining the likely categories that each report falls into, and calculating a confidence for each classification. Mariana¹s innovation is it automates the search for the optimum hyperparameters. It does so by randomly selecting a set of hyperparameters. Next it builds a model from the training data and tests the model's performance using the validation set. That performance is compared to previous performances, and if the current set of hyperparameters are better than the previous one, then it records the hyperparameters. This process is repeated until there are no noticeable improvements in performance or at a predefined stopping point.
distribution 
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    "title": "Download this dataset through a directory map",
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    "format": "PDF",
    "mediaType": "application/pdf",
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    "title": "Get a related visualization through GIOVANNI",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "The GES-DISC Interactive Online Visualization ANd aNalysis Interface (Giovanni) is a web-based tool that allows users to interactively visualize and analyze data.",
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  },
  {
    "@type": "dcat:Distribution",
    "title": "Download this dataset through Earthdata Search",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Use the Earthdata Search to find and retrieve data sets across multiple data centers.",
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    "@type": "dcat:Distribution",
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identifier DASHLINK_117
issued 2010-09-10
keyword 
[
  "ames",
  "dashlink",
  "nasa"
]
landingPage https://c3.nasa.gov/dashlink/resources/117/
modified 2025-03-31
programCode 
[
  "026:029"
]
publisher 
{
  "name": "Dashlink",
  "@type": "org:Organization"
}
title Mariana

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