摘要:
An edge-covering based greedy method for shared filter ordering includes receiving a plurality of queries, wherein each query is a conjunction of filters, and each filter is shared across multiple queries of the plurality of queries, evaluating a unit price of each filter, evaluating, sequentially, each filter in order of a lowest to a highest unit price, to determine a value for each filter, and changing an ordering of the filters according to the values. An edge-covering based harmonic method for shared filter ordering includes receiving a plurality of queries, wherein each query is a conjunction of filters, and each filter is shared across multiple queries of the plurality of queries, evaluating a weight of each filter, evaluating, randomly, each filter having a probability inversely proportionally to its weight, to determine a value, and changing an ordering of the filters according to the values.
摘要:
An edge-covering based greedy method for shared filter ordering includes receiving a plurality of queries, wherein each query is a conjunction of filters, and each filter is shared across multiple queries of the plurality of queries, evaluating a unit price of each filter, evaluating, sequentially, each filter in order of a lowest to a highest unit price, to determine a value for each filter, and changing an ordering of the filters according to the values.An edge-covering based harmonic method for shared filter ordering includes receiving a plurality of queries, wherein each query is a conjunction of filters, and each filter is shared across multiple queries of the plurality of queries, evaluating a weight of each filter, evaluating, randomly, each filter having a probability inversely proportionally to its weight, to determine a value, and changing an ordering of the filters according to the values.
摘要:
A semantic publish-subscribe system, including: a plurality of subscribers; a plurality of publishers; and a server that receives and stores subscriptions that are described in web ontology language (OWL) graph patterns from the plurality of subscribers and that receives events that are described in semantic graphs formed by OWL assertions from the plurality of publishers, wherein when the server receives an event from a publisher, the server expands the OWL assertions of the event using a reasoner to produce an expanded event, the server matches the expanded event to a subscription, and then, the server notifies a subscriber whose interest matches the event.
摘要:
A semantic publish-subscribe system, including: a plurality of subscribers; a plurality of publishers; and a server that receives and stores subscriptions that are described in web ontology language (OWL) graph patterns from the plurality of subscribers and that receives events that are described in semantic graphs formed by OWL assertions from the plurality of publishers, wherein when the server receives an event from a publisher, the server expands the OWL assertions of the event using a reasoner to produce an expanded event, the server matches the expanded event to a subscription, and then, the server notifies a subscriber whose interest matches the event.
摘要:
A method for modeling a web service operation, includes: defining an input message pattern that describes input requirements of a web service operation, wherein the input message pattern includes a set of variables representing data elements that must be contained in a message input to the web service operation, and a graph pattern that semantically describes the data elements that must be contained in the message input to the web service operation; and defining an output message pattern that describes an output message of the web service operation, wherein the output message pattern includes a set of variables and exemplars that represent data elements contained in the output message, and a graph pattern that semantically describes the data elements contained in the output message.
摘要:
A method for modeling components of a stream processing application, includes: defining an input message pattern of a processing element, wherein the input message pattern includes variables representing data objects that must be included in a message input to the processing element, and a graph pattern that semantically describes the data objects that must be included in the message input to the processing element; and defining an output message pattern of the processing element, wherein the output message pattern includes variables and new data objects, the variables and new data objects representing data objects that must be included in a message output from the processing element, and a graph pattern that semantically describes the data objects in the message output from the processing element.
摘要:
A method for assembling processing graphs in an information processing system, includes: performing, in an offline manner, translating a plurality of component descriptions into a planning language and performing reasoning on the plurality of component descriptions during the translation; and performing, in an online manner, receiving a processing request that specifies a desired processing outcome; translating the processing request into a planning goal; and assembling a plurality of processing graphs, each of the processing graphs including a plurality of the translated and reasoned components that satisfy the desired processing outcome.
摘要:
A method for assembling stream processing graphs in a stream processing system, includes: performing, in an offline manner, translating a plurality of processing element and data source descriptions into a planning language and performing reasoning on the plurality of processing element and data source descriptions during the translation; and performing, in an online manner, receiving a processing request that specifies a desired processing outcome; translating the processing request into a planning goal; and assembling a plurality of stream processing graphs, each of the processing graphs including a plurality of the translated and reasoned processing elements or data sources that satisfy the desired processing outcome.
摘要:
A number of Web 2.0 sites support collaborative tagging systems, which allow users to tag resources with keywords. The tags enable search and retrieval of resources both for the user and for other users, using interfaces like a conventional search form or a tag cloud. A tag hierarchy-based search and retrieval system is provided that enhances the existing interfaces by improving search recall and allowing the discovery of even poorly annotated resources. The system uses tag co-occurrence information to automatically learn tag hierarchies. The learned hierarchies are used for automatically inferring additional tags to resources. These inferences are used to improve the recall of queries issued from a search form or via a tag cloud. The learned hierarchies can be viewed as an emergent ontology that is built up through the collaborative wisdom of a large number of users.
摘要:
A method, including: receiving a software requirement; and constructing a workflow template that can satisfy the software requirement, wherein the workflow template comprises a plurality of processing stages, wherein each processing stage includes at least one component class and each component class includes at least one component, and wherein an output of each processing stage is described by a processing goal pattern that is described by a set of tags and facets.