Information on Service 'UCD resolver'

[Use this service from your browser]

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
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
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
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
score Score Some arbitrary score (larger is better) 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

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

The Data Center is currently running in emergency mode after our database server failed catastrophically (see our blog for infos and updates).

This means, in particular, that services built on top of large tables may currently be broken. Since our replacement server is much slower than our usual machine, restoring them will take quite some time.

(Click to dismiss; requires Javascript)