Gilbert Müller

Universität Trier · Department of Computer Studies / Business Informatics

This paper presents a novel approach to compositional adap-tation of workflows, thus addressing the adaptation step in process-oriented case-based reasoning. Unlike previous approaches to adaptation, the proposed approach does not require additional adaptation knowledge. Instead, the available case base of workflows is analyzed and each case is dec...

This paper presents a novel approach to the operator-based adapta- tion of workflows, which is a specific type of transformational adaptation. We introduce the notion of workflow adaptation operators which are partial functions transforming a workflow into a successor workflow, specified by workflow frac- tions to be inserted and/or deleted. The ad...

In this paper, we introduce the concept of generalized cases into process-oriented case-based reasoning. We present the formal foundations for the generalization of workflow cases as well as a new algorithm for generalizing semantic workflows, guided by ontological knowledge of the domain. Further, the specialization of workflows w.r.t. a current q...

In case-based reasoning, improving the performance of the retrieval phase is still an important research issue for complex case representations and computationally expensive similarity mea-sures. This holds particularly for the of retrieval workflows, which is a recent topic in process-oriented case-based reasoning. While most index-based retrieval...

The Collaborative Agile Knowledge Engine (CAKE) is a prototypical generic software system for integrated process and knowledge management. CAKE integrates recent re-search results on agile workflows, process-oriented case-based reasoning, and web technologies into a common platform that can be configured to different application domains and needs....

The increasing demand for individual and more flexible process models and workflows asks for new intelligent process-oriented information systems. Such systems should, among other things, support domain experts in the creation and adaptation of process models or workflows. For this purpose, repositories of best practice workflows are an important m...

This paper investigates the generation of recipes in consideration of user-defined nutrient contents. For this purpose, we extend our previous case-based reasoning approach that already covers the formulation of user queries with various dietary practices. More precisely, this work augments the domain ontology with nutritional information and intro...

Process-oriented case-based reasoning (POCBR) supports workflow modeling by retrieving and adapting workflows that have proved useful in the past. Current approaches typically require users to specify detailed queries, which can be a demanding task. Conversational case-based reasoning (CCBR) particularly addresses this problem by proposing methods...

Gilbert Müller introduces the foundations of Business Process Management as well as Case-based Reasoning and presents a novel approach to assist the complex, time-consuming, and error-prone task of workflow modeling. By means of methods from artificial intelligence, in particular from the field of Case-based Reasoning, he shows how workflows can be...

One of the biggest challenges in business process management is the creation of appropriate and efficient workflows. This asks for intelligent, knowledge-based systems that assist domain experts in this endeavor. In this paper we investigate workflow creation by applying Process-Oriented Case-Based Reasoning (POCBR). We introduce POCBR and describe...

Current approaches for retrieval and adaptation in process-oriented case-based reasoning (POCBR) assume a fully elaborated query given by the user. However, users may only have a vague idea of the workflow they desire or they lack the required domain knowledge. Conversational case-based reasoning (CCBR) particularly addresses this problem by propos...

Cases available in real world domains are often incomplete and sometimes lack important information. Using incomplete cases in a CBR system can be harmful, as the lack of information can result in inappropriate similarity computations or incompletely generated adaptation knowledge. Case completion aims to overcome this issue by inferring missing in...

Sharing and reuse of best-practice process models is an important knowledge management approach for business process modelling. Process-oriented Case-Based Reasoning (PO-CBR) supports this by retrieving and adapting processes or workflows based on models stored in the repository, which requires an expressive query language. Hence, we present a nove...

The Collaborative Agile Knowledge Engine (CAKE) is a prototypical generic software system for integrated process and knowledge management. CAKE integrates recent research results on agile workflows, process-oriented case-based reasoning, and web technologies into a common platform that can be configured to different application domains and needs. W...

This paper presents a novel approach to compositional adaptation of workflows, thus addressing the adaptation step in processoriented case-based reasoning. Unlike previous approaches to adaptation, the proposed approach does not require additional adaptation knowledge. Instead, the available case base of workflows is analyzed and each case is decom...

The problem of clustering workflows is a relatively new research area of increasing importance as the number and size of workflow repositories is getting larger. It can be useful as a method to analyze the workflow assets accumulated in a repository in order to get an overview of its content and to ease navigation. In this paper, we investigate wor...

The problem of clustering workflows is a relatively new re-search area of increasing importance as the number and size of workflow repositories is getting larger. It can be useful as a method to analyze the workflow assets accumulated in a repository in order to get an overview of its content and to ease navigation. In this paper, we investigate wo...