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We present an OWLS service composition planner, called OWLS-Xplan, that allows for fast and flexible composition of OWLS services in the semantic Web. OWLS-Xplan converts OWLS 1.1 services to equivalent problem and domain descriptions that are specified in the planning domain description language PDDL 2.1, and invokes an efficient AI planner Xplan to(More)
In this paper, we present the implementation, evaluation, and application of our OWL-S service composition planner OWLS-XPlan. Medical services described in OWL-S 1.1 and ontologies are converted to initial state and goal descriptions in PDDL 2.1, which are then used by the fast heuristic FF planner XPlan for generating an execution complete composition(More)
D esigning self-interested autonomous software agents that can negotiate rationally in stable coalitions can dramatically benefit end users. Rational agents are usually required to form beneficial coalitions in open, distributed, and heterogeneous environments , including scenarios in which dynamically occurring events might interfere with the coalition(More)
In this paper, we present the implementation, evaluation, and application of our OWL-S service composition planner OWLS-XPlan. Services in OWL-S 1.1 and ontologies are converted to initial state and goal descriptions in PDDL 2.1, which are then used by the fast heuristic FF planner XPlan for generating an execution complete composition plan. Results of(More)
OBJECTIVES To characterize patterns of electronic medical record (EMR) use at pediatric primary care acute visits. DESIGN Direct observational study of 529 acute visits with 27 experienced pediatric clinician users. MEASUREMENTS For each 20 s interval and at each stage of the visit according to the Davis Observation Code, we recorded whether the(More)
BACKGROUND Health insurance coverage for all citizens is often considered a requisite for reducing disparities in health care accessibility. In Germany, health insurees are covered either by statutory health insurance (SHI) or private health insurance (PHI). Due to a 20%-35% higher reimbursement of physicians for patients with PHI, it is often claimed that(More)