IDOL OnDemand by HP offers an array of data processing APIs for format conversion, image analysis, indexing, search, and textual analysis. Preview capabilities exist to view how many of these RESTful APIs behave in action. The Query Text Index API accepts plain text, references, or Boolean expressions and queries the OnDemand database to return documents that match the specified search criteria. Queries are also made to a number of public datasets that include Wikipedia news feeds in multiple languages.
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