Results 101 to 110 of about 619,082 (337)
Graphical representation of main findings and article highlights. Abstract Aims Understanding heart failure (HF) characteristics is essential to improve patient outcomes. Categorizing HF beyond left ventricular ejection fraction (LVEF) is challenging due to heterogeneous clinical presentation and aetiologies.
Rubén Fuentes Artiles+4 more
wiley +1 more source
Les index pour les entrepôts de données : comparaison entre index arbre-B et Bitmap [PDF]
With the development of decision systems and specially data warehouses, the visibility of the data warehouse design before its creation has become essential, and that because of data warehouse importance as considered as the unique data source giving meaning to the decision. In a decision system the proper functioning of a data warehouse resides in the
arxiv
Context-based Data Quality Metrics in Data Warehouse Systems
The fact that Data Quality (DQ) depends on the context, in which data are produced, stored and used, is widely recognized in the research community. Data Warehouse Systems (DWS), whose main goal is to give support to decision making based on data, have ...
Flavia Serra, Adriana Marotta
doaj +1 more source
Data Warehouse Benchmarking with DWEB [PDF]
Performance evaluation is a key issue for designers and users of Database Management Systems (DBMSs). Performance is generally assessed with software benchmarks that help, for example test architectural choices, compare different technologies, or tune a system.
openaire +4 more sources
ABSTRACT To better understand what facilitates reconciliation after violent conflict, we examined the relevance of intergroup contact, conflict appraisals and emotions for reconciliation in post‐conflict Colombia. The first study with Colombian students (N1 = 260) was run shortly after the peace treaty with the Colombian Revolutionary Armed Forces ...
Helen Landmann+2 more
wiley +1 more source
Improving OLTP data quality using data warehouse mechanisms [PDF]
Matthias Jarke+5 more
openalex +1 more source
Abstract Objective Rural veterans have high obesity rates. Yet, little is known about this population's engagement with the Veterans Affairs (VA) weight management program (MOVE!). The study objective is to determine whether MOVE! enrollment, anti‐obesity medication use, bariatric surgery use, retention, and outcomes differ by rurality for veterans ...
Kathleen M. Robinson+6 more
wiley +1 more source
A Join Index for XML Data Warehouses [PDF]
XML data warehouses form an interesting basis for decision-support applications that exploit complex data. However, native-XML database management systems (DBMSs) currently bear limited performances and it is necessary to research for ways to optimize them.
arxiv