186,228 research outputs found
Business-Intelligence-Konzept auf Basis einer Event-Driven Service-Oriented Architecture
No full textIn Zeiten eines dynamischen Wettbewerbs ist eine schnelle Entscheidungsfindung erforderlich, die im Rahmen klassischer DataWarehouse(DWH)-Systeme, als technische Umsetzung von Business Intelligenc
Investitionsentscheidungen bei mehrfachen Zielsetzungen und künstliche Ameisen
No full textDoerner KF, Gutjahr WJ, Hartl RF, Strauss C, Stummer C. Investitionsentscheidungen bei mehrfachen Zielsetzungen und künstliche Ameisen. In: Chamoni P, Leisten R, Martin A, Minnemann J, Stadtler H, eds. Operations Research Proceedings 2001. Berlin: Springer; 2002: 355-362
Storage problems in batch scheduling
No full textThis paper is concerned with the modelling of storage configurations for intermediate products in process industries. Those models form the basis of algorithms for scheduling chemical production plants. Different storage capacity settings (unlimited, finite, and no intermediate storage), storage homogeneity settings (dedicated and shared storage), and storage time settings (unlimited, finite, and no wait) are considered. We discuss a classification of storage constraints in batch scheduling and show how those constraints can be integrated into a general production scheduling model that is based on the concept of cumulative resources
Internet-based exercises and mini-exams for production and operations management
No full textThe purpose of the internet-based teachware mySCM is that students of economics, informatics and industrial engineering get familiar with quantitative methods for supply chain management. Input-output-relationships of various optimization methods can be detected by sampling input values, parameters, and alternative methods for the same problem. Students can gain extra benefits by passing so-called mini-exams that motivate active learning. mySCM can be used for free, round-the-clock, and any place where access to the Internet is available
Business-Intelligence-Konzept auf Basis einer Event-Driven Service-Oriented Architecture
No full textAuthor-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
- …
