Unlike other microarray data repositories, it entirely dispenses with free-text format, instead holding all the information in a format ready for statistical analysis.
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The Multi-Conditional Hybridization Intensity Processing System (M-CHiPS), a data warehousing concept, focuses on providing a structure suitable for statistical analysis of a microarray database's entire components including the experiment annotations. It accounts for a rapid growth of the amount of hybridisation data, more detailed experimental descriptions and new kinds of experiments expected for the future. We have developed a storage concept, a particular instance of which is an organism-specific database. Although these databases may contain different ontologies of experiment annotations, they share the same structure and therefore can be accessed by the very same statistical algorithms. Experiment ontologies have not yet reached their final shape and standards are reduced to minimal conventions not usable for extensive description. An ontology-independent structure enables ontology-updates during normal database operation, avoiding structure-alterations.
Experiment annotation definition schemesAll defined values - no freetext !
Public data setsFollowing datasets have been published:
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