Alexander Tartakovski

Learn More
The dynamics of the market requires workflow management systems that support agile workflows-workflows which are flexible concerning the adaptation to innovations. This paper presents a case-based approach to representation and index-based retrieval of past workflows in order to give authoring support for adaptation of recent workflow instances. The utility(More)
abstraCt The increasing dynamics of today's work impacts the business processes. Agile workflow technology is a means for the automation of adaptable processes. However, the modification of workflows is a difficult task that is performed by human experts. This article discusses the novel approach of agile workflow technology for dynamic, long-term scenarios(More)
The concept of generalized cases has been proven useful when searching for configurable and flexible products, for instance, reusable components in the area of electronic design automation. This paper addresses the similarity assessment and retrieval problem for case bases consisting of traditional and generalized cases. While approaches presented earlier(More)
This paper addresses the similarity assessment and the retrieval problems in Case-Based Reasoning for case bases consisting of traditional and generalized cases. Previous work focussed on similarity assessment for generalized cases with continuous domains. The similarity assessment problem was formulated as Nonlinear Pro-gramm (NLP), which is well known in(More)
In our current research project about electronic designs the problem to retrieve attribute dependent generalized cases occurs. This kind of cases cover an arbitrary subspace rather than a point in the space, spanned by the cases attributes and by a set of constraints. For such representations, the similarity assessment between a point query and generalized(More)
In CBR applications, the traditional concept of a case is that of a point in the space spawned by the case's attributes. Driven by examinations of several new applications, like the retrieval for intellectual properties (IPs), we proposed the concept of generalized cases [BV99, Ber02]. A generalized case (gc) covers not only one point of the attribute(More)
For the design of Systems on Chip (SoC) it is essential to reuse previously developed and verified components, so-called Intellectual Properties (IPs), in order to meet nowadays requirements in reliability, correctness, and time-to-market. On the downside, deciding about reusing a third-party component in a design situation can consume substantial time and(More)
Similarity-based retrieval of stored objects is one of the main building blocks of a case-based reasoning approach (CBR). Over the last three decades several sophisticated retrieval methods have been developed which are more suitable for many real-world scenarios than the traditional database search. However, the CBR approach and in particular the published(More)