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Due to decentralized and linked architecture underlying Linking Data, running complex queries often require collecting data from multiple RDF datasets. The optimization of the runtime of such queries, called federated queries, is of central importance to ensure the scalability of Semantic-Web and Linked-Data-driven applications. This has motivated a considerable body of work on SPARQL query fed...

Analytical models for parallel programs have been successful at providing simple qualitative insights and bounds on scalability, but have been less successful in practice for predicting detailed, quantitative information about program performance. We develop a conceptually simple model that provides detailed performance prediction for parallel programs with arbitrary task graphs, a wide variety...

Much of the production in firms takes place over time. This paper seeks to understand the value of interim performance information on long projects. In particular, the model explores the sorting effects of performance evaluations. Conducting an interim performance evaluation increases efficiency by providing the option to end projects with low early returns. The main result: It is efficient to ...

In order to program parallel and distributed systems efficiently, a systematic way of defining and understanding the complex behavior of process interactions in concurrent programs is needed. A proven method for understanding existing programs is event-driven monitoring which abstracts the program behavior to a sequence of events. These event traces are analyzed for debugging and tuning of the ...

Professional practice programs are designed to attract, retain, and reward nurses. This three-part series will describe Vanderbilt's performance-based career advancement system, the Vanderbilt Professional Nursing Practice Program (VPNPP). Part 1 outlines the overall program's foundation, philosophical background, and basic structure. The VPNPP is built upon Benner's work, distinguishing among ...

Hospital Rural IMSS-Prospera, Tamazunchale, San Luis Potosí, Mexico. 2 Facultad de Enfermería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico. Conflicts of interest: none to declare. Abstract Objective: To evaluate nursing performance in the control of diabetic outpatients of the IMSS (Instituto Mexicano del Seguro Social [Mexican Social Security Institute])-Prospera hospital ...

OBJECTIVE The objective of this study is to evaluate the performance of the Tuberculosis Control Program in municipalities of the State of São Paulo. METHODS This is a program evaluation research, with ecological design, which uses three non-hierarchical groups of the municipalities of the State of São Paulo according to their performance in relation to operational indicators. We have selecte...

This paper deals with two-processor scheduling for a class of program nets, that are acyclic and SWITCH-less, and of which each node has unity node firing time. Firstly, we introduce a hybrid priority list L∗ that generates optimal schedules for the nets whose AND-nodes possess at most single input edge. Then we extend L∗ to suit for general program nets to give a new priority list L∗∗. Finally...