نتایج جستجو برای: aggregation operation
تعداد نتایج: 275880 فیلتر نتایج به سال:
To study the resistance to standard dosage of clopidogrel among Iranian patients following percutaneous coronary intervention measured by platelet aggregation test.Patients undergoing percutaneous coronary intervention in Imam Hussein Medical center, Tehran, Iran, who were under treatment with aspirin, but had no history of clopidogrel usage, entered the study. Patients received standard dosage...
Inspired by pointfree relational data processing, this paper addresses the foundations of an alternative roadmap for parallel online analytical processing (OLAP) based on a separation of concerns: rather than depending on standard database technology and heavy machinery, OLAP operations are performed by encoding data in matrix format and relying thereupon solely on LA operations. The paper inve...
The recent evolution of ubiquitous computing has brought with it a dramatic increase of event monitoring capabilities by wireless devices and sensors. Such systems require new, more sophisticated, event correlation over time and space. This new paradigm implies composition of events in heterogeneous network environments, where network and resource conditions vary. Event Correlation will be a mu...
This paper proposes the algorithm ProSum to perform the supervised classification of the data. In the proposed algorithm data is fuzzified by using π–type membership function to give the feature belongingness of each pattern to each class. By using Product aggregation reasoning rule (PARR) and sum aggregation reasoning rule (SARR), the belongingness of each pattern to each class is determined. ...
In order to simplify the design and operation of telecommunications networks, it is common to describe them in a layered structure constituted by a service network layer on top of a transport network layer. The service network layer provides services to its users, whereas the transport network layer comprises the infrastructure required to support the service networks. Hence, transport networks...
We propose a privacy-preserving protocol for computing aggregation queries over the join of private tables. In this problem, several parties wish to share aggregated information over the join of their tables, but want to conceal the details that generate such information. The join operation presents a challenge to privacy preservation because it requires matching individual records from private...
In this paper, we present an access method called branch index for query processing of the aggregation hierarchy as a tree in object-oriented databases. The algorithm of branch generation will be proposed to generate all branches for the tree aggregation of classes in the database. For each branch, the information of linking objects is stored so that class traversal methods can be eliminated. U...
Wireless sensor networks have been used more and more widely with the developments of related techniques in telecommunication and computer sciences. While sensor nodes in wireless sensor networks have very limited memory spaces and power. In this paper, we propose a new query aggregation method to preprocess the query predicates. The size of the relational table can be further reduced using the...
This paper presents an aggregation technique targeted for near real-time, long-term, and wide-area traffic monitoring. Our technique, called aguri, adapts itself to spatial traffic distribution by aggregating small volume flows into aggregates, and achieves temporal aggregation by creating a summary of summaries applying the same algorithm to its outputs. A set of scripts are used for archiving...
In the context of triple play Ominimedia is not just the simple combination of various media, but the aggregation of all media with different features, communication power and influences,and the interaction and mutual fusion among media of different forms and functions. This paper, based on the development trend of triple play, focused on the theme of Ominimedia, studied the traditional media d...
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