CohortExplorer: A Generic Application Programming Interface for Entity Attribute Value Database Schemas
نویسندگان
چکیده
منابع مشابه
Application of Information Technology: Data Extraction and Ad Hoc Query of an Entity - Attribute - Value Database
Entity--attribute--value (EAV) tables form the major component of several mainstream electronic patient record systems (EPRSs). Such systems have been optimized for real-time retrieval of individual patient data. Data warehousing, on the other hand, involves cross-patient data retrieval based on values of patient attributes, with a focus on ad hoc query. Attribute-centric query is inherently mo...
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BACKGROUND The entity-attribute-value representation with classes and relationships (EAV/CR) provides a flexible and simple database schema to store heterogeneous biomedical data. In certain circumstances, however, the EAV/CR model is known to retrieve data less efficiently than conventionally based database schemas. OBJECTIVE To perform a pilot study that systematically quantifies performanc...
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Objective: To perform a pilot study that systematically quantifies performance differences for database queries directed at real-world microbiology data modeled with EAV/CR and conventional representations, and to explore the relative merits of different EAV/CR query implementation strategies. Methods: Clinical microbiology data obtained over a ten-year period were stored using both database mo...
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ژورنال
عنوان ژورنال: JMIR Medical Informatics
سال: 2014
ISSN: 2291-9694
DOI: 10.2196/medinform.3339