Refine
Year of publication
Document Type
- Article (29)
- Periodical Part (29)
- Book (8)
- Report (7)
- Part of a Book (5)
- Conference Proceeding (5)
- Working Paper (3)
- Preprint (2)
- Course Material (1)
Has Fulltext
- yes (89)
Is part of the Bibliography
- no (89)
Keywords
- Milchwirtschaft (16)
- Molkerei (14)
- Bibliothek (12)
- E-Learning (4)
- Kostenverlauf (4)
- Vernehmung (4)
- World Wide Web 2.0 (4)
- Belehrung (3)
- Business Intelligence (3)
- Informationskompetenz (3)
Institute
- Sonstige Einrichtungen (89) (remove)
A German university has developed a learning information system to improve information literacy among German students. An online tutorial based on this Lerninformationssystem has been developed. The structure of this learning information system is described, an online tutorial based on it is illustrated, and the different learning styles that it supports are indicated.
Studierende
(1999)
In der Zentralbibliothek der Hochschule Hannover wurde ab Wintersemester 2012 ein Experiment mit Roving Librarians durchgeführt, um die Auskunftsqualität zu verbessern. Die Mitarbeiterinnen und Mitarbeiter der Bibliothek liefen zu diesem Zweck mit einem Netbook ausgerüstet durch den Benutzungsbereich der Bibliothek, um Fragen der Nutzer und Nutzerinnen gleich dort aufzufangen, wo sie entstehen. Der Versuch kann nicht als erfolgreich bezeichnet werden, doch konnten während des Experiments wertvolle Einblicke in Nutzerwünsche gewonnen werden.
research
(2002)
Qualität
(2001)
An important part of computed tomography is the calculation of a three-dimensional reconstruction of an object from series of X-ray images. Unfortunately, some applications do not provide sufficient X-ray images. Then, the reconstructed objects no longer truly represent the original. Inside of the volumes, the accuracy seems to vary unpredictably. In this paper, we introduce a novel method to evaluate any reconstruction, voxel by voxel. The evaluation is based on a sophisticated probabilistic handling of the measured X-rays, as well as the inclusion of a priori knowledge about the materials that the object receiving the X-ray examination consists of. For each voxel, the proposed method outputs a numerical value that represents the probability of existence of a predefined material at the position of the voxel while doing X-ray. Such a probabilistic quality measure was lacking so far. In our experiment, false reconstructed areas get detected by their low probability. In exact reconstructed areas, a high probability predominates. Receiver Operating Characteristics not only confirm the reliability of our quality measure but also demonstrate that existing methods are less suitable for evaluating a reconstruction.