This schema provides elements and types for the CIRCO (Coordinated Information Retrieval Components Orchestration) framework. Created on 2008-12-15 Last modified on 2009-05-05 Authored by Nicola Ferro (ferro@dei.unipd.it) Copyright (c) 2008-2009 - Information Management Systems (IMS) Research Group (http://ims.dei.unipd.it/) - Department of Information Engineering (http://www.dei.unipd.it/) - University of Padua (http://www.unipd.it/) Imports the schema for the Simple Dublin Core standard. Represents the root node of any XML document concerning the CIRCO framework. Provides metadata information about the file at hand, according to the Simple Dublin Core metadata standard. For more information about the Dublin Core Metadata Initiative (DCMI), please visit http://dublincore.org/. The elements that are allowed under the root of the document. Represents an actor of the system, being it a human being or a computing devices. The unique identifier of the actor. The password of the actor. The full name of the actor. The e-mail of the actor. The country of the actor. The language of the actor. Represents a component of an information retrieval engine. The owner of this component. The unique identifier of the component. The description of this component. The type of the component, e.g. a tokenizer or a stemmer. Represents an information retrieval engine. The actor responsible for this information retrieval engine. The sequence of components chained by this information retrieval engine. The unique identifier of the information retrieval engine. The description of this information retrieval engine. Represents an occurred error. Additional details which describe the occurred error. The language of the details. Additional diagnostic and debug messages. The unique identifier of the error. A numeric error code which identifies the type of error. An error internal to the CIRCO system has occurred. An unsupported output format has been requested. An unsupported input format has been provided. An invalid parameter (null, empty, missing, ...) has been provided. An XML document which does not comply with the CIRCO XSchema has been provided. An attempt to access an object without the required authentication has been performed. An attempt to access an object with insufficient access rights has been performed. An unknown object has been requested. An attempt to access an invalid object has been performed. An attempt to create an already existing object has been performed. An attempt to refer to an inexistent object has been performed. An error occurred while serializing document to XML. A label which describes the type of error. An error internal to the CIRCO systems has occurred. An unsupported output format has been requested. An unsupported input format has been provided. An invalid parameter (null, empty, missing, ...) has been provided. An XML document which does not comply with the CIRCO XSchema has been provided. An attempt to access an object without the required authentication has been performed. An attempt to access an object with insufficient access rights has been performed. An unknown object has been requested. An attempt to access an invalid object has been performed. An attempt to create an already existing object has been performed. An attempt to refer to an inexistent object has been performed. An error occurred while serializing document to XML. Represents a feature of a token of an information resource. The token described by this feature. The unique identifier of the feature. The name of the feature. The type of the feature. The description of the feature. The value of the feature. Represents an information resource. The stream to which this information resource belongs. The tokens that are comprised by this resource. The unique identifier of the resource. The MIME media type of this information resource. Represents a list of items retrieved in response to a query. The string representation query which originated these results. The component which generated these results. The items that constitute these results. An item of the results list. The identifier of the found object. The rank of the found object. The score of the found object. In case of exact match queries, score is 1; in case of best match queries it is a value in the interval [0, 1]. The iteration, e.g. due to relevance feedback, in which this item has been retrieved. The unique identifier of the results. The identifier of the query which originated these results. Represents a list of results in response to several queries. The unique identifier of the result list. Represents a stream of information resources that are processed by a component. The component that generated this stream. The information resources that are part of this stream. The unique identifier of the stream. Indicates whether this stream is chunked or not. The number of this stream chunk in a chunked stream. The first chunk in a chunked stream starts from 0. Indicates whether this is the last chunk of a chunked stream. The message digest of the previous chunk in a chunked stream. The algorithm used to compute the digest of the previous chunk. Represents a token of an information resource. The information resource to which this token belongs. The features that describe the properties of this token. The tokens which have been processed to create this token. The unique identifier of the token. The string representation of this token.