Information on Service 'UCD resolver'

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Further access options are discussed below

The UCD resolver uses the metadata in the current Registry to suggest UCDs pertinent to natural language column descriptions. In that, it fulfills a similar function as the CDS UCD builder but uses an entirely different approach.

For a list of all services and tables belonging to this service's resource, see Information on resource 'ucds/ui'

Overview

You can access this service using:

This service is published as follows:

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Other services provided on the underlying data include:

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
description Column Description Natural-language description of the column contents. Remove terms if you get no matches. N/A N/A
maxrec Match limit Maximum number of records returned. Pass 0 to retrieve service parameters. N/A N/A
responseformat Output Format File format requested for output. N/A meta.code.mime
verb Verbosity Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns. N/A N/A

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

NameTable Head DescriptionUnitUCD
expl Explanation Machine generated explanation N/A N/A
is_valid OK? Is the UCD valid? (The basic data is from the VO Registry, into which data providers can publish invalid UCDs) N/A N/A
score Score Some arbitrary score (larger is better) N/A N/A
toExpl Existing Descriptions Known descriptions of this UCD N/A N/A
ucd UCD Suggested UCD N/A N/A

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

NameTable Head DescriptionUnitUCD Verb. Level
score Score Some arbitrary score (larger is better) N/A N/A 10
ucd UCD Suggested UCD N/A N/A 10
expl Explanation Machine generated explanation N/A N/A 10
is_valid OK? Is the UCD valid? (The basic data is from the VO Registry, into which data providers can publish invalid UCDs) N/A N/A 10
toExpl Existing Descriptions Known descriptions of this UCD N/A N/A 10

VOResource XML (that's something exclusively for VO nerds)