Michael Abramovici

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In this paper we address and discuss the problem of learning graphical models like Bayesian networks using structure learning algorithms. We present a new parameterized structure learning approach. A competing fusion mechanism to aggregate expert knowledge stored in distributed knowledge bases or probability distributions is also described. Experimental(More)
Information and knowledge management were introduced in the engineering field to help product developers avoid "reinventing the wheel". As PDM and DMS systems manage the whole information about a developed product, no software systems for capturing, managing and analysis of the product development processes are available. This information is usually stored(More)
To this day, as a result of increasing PLM penetration and continuously changing company structures, several PLM solutions have evolved over time and now exist in parallel within many companies. Disharmonized PLM solutions can impede productivity and flexibility in cross-division cooperation and company-internal reorganization projects. A lot of companies(More)
Heutige Product Lifecycle Management (PLM) Systeme fokussieren sich auf die Unterstützung der frühen Phasen des Produktlebenszyklus. Nachgelagerte Phasen wie die Produktnutzungsphase werden derzeit gar nicht oder bestenfalls rudimentär unterstützt. Im vorliegenden Paper wird ein Konzept für die Integration der Produktnutzungsphase in das PLM-Konzept(More)
The objective of the work presented in this paper is to provide a methodology and tools for distributed PDM environments especially suited for virtual project based cooperation in engineering design. A research project called WebFlex-PDM (Web-enabled Flexible PDM federation) is introduced. This project mainly deals with extensions to existing PDM systems to(More)
This paper describes a specialized PLM approach with operation monitoring and maintenance of the product during its usage based on a condition monitoring method framework. A coupling procedure integrates the PLM meta data model with associated condition monitoring and diagnosis method framework results. Graphical models dealing with a priori information(More)
This paper describes a unifying data management concept for feedback assistance systems. The assistance system is to be integrated into existing system scenery. During the use of a hydraulic system, objective feedback such as sensor data or service data is captured and managed in local databases by the machine operators. The aim is to lead such Product Use(More)
At present, product lifecycle data is provided, used, and archived only for very specific purposes. Textual data generated in product use can be very comprehensive and contain valuable information beyond its original purpose, e.g. for product development or improvement. This kind of information, however, is not fed back systematically, as its evaluation is(More)