http://dl.gi.de/handle/20.500.12116/6114 2026-07-23T03:51:18Z 2026-07-23T03:51:18Z Loepp, Benedikt Herrmanny, Katja Ziegler, Jürgen http://dl.gi.de/handle/20.500.12116/6178 2018-03-20T10:59:45Z 2015-01-01T00:00:00Z

Merging Interactive Information Filtering and Recommender Algorithms – Model and Concept Demonstrator Loepp, Benedikt; Herrmanny, Katja; Ziegler, Jürgen Ziegler, Jürgen To increase controllability and transparency in recommender systems, recent research has been putting more focus on integrating interactive techniques with recommender algorithms. In this paper, we propose a model of interactive recommending that structures the different interactions users can have with recommender systems. Furthermore, as a novel approach to interactive recommending, we describe a technique that combines faceted information filtering with different algorithmic recommender techniques. We refer to this approach as blended recommending. We also present an interactive movie recommender based on this approach and report on its user-centered design process, in particular an evaluation study in which we compared our system with a standard faceted filtering system. The results indicate a higher level of perceived user control, more detailed preference settings, and better suitability when the search goal is vague.

2015-01-01T00:00:00Z Gross, Tom Ziegler, Jürgen http://dl.gi.de/handle/20.500.12116/6179 2018-03-20T10:59:45Z 2015-01-01T00:00:00Z

Introduction to Special Issue on User-Centred Recommender Systems Gross, Tom; Ziegler, Jürgen Ziegler, Jürgen

2015-01-01T00:00:00Z Kolb, Georg http://dl.gi.de/handle/20.500.12116/6180 2018-03-20T10:59:45Z 2015-01-01T00:00:00Z

Call for a Holistic Approach to the Use of Social Intranets Kolb, Georg Ziegler, Jürgen There are high expectations on what social intranets can do for productivity. However, there is still a large gap between promise and delivery, mainly caused by a misunderstanding of the user perspective. Usability of social intranets needs to be redefined in a holistic way, integrating the four dimensions of business, culture, technology and communication. And we need to build this integration into the workflow of social intranet teams by establishing a cross-functional body steering the project.

2015-01-01T00:00:00Z Riemke-Gurzki, Thorsten http://dl.gi.de/handle/20.500.12116/6181 2018-03-20T10:59:45Z 2015-01-01T00:00:00Z

Developing Intranet Strategy: An Interdisciplinary Building Block Model Riemke-Gurzki, Thorsten Ziegler, Jürgen Intranets became the central platform for internal corporate communication, business processes and information technology in the last decade. This huge application scope leads to severe project traps: How can a corporate-wide, interdisciplinary intranet strategy be developed, established and maintained? This article shows the challenges and potential problems for the development of an intranet strategy. It introduces a building block model for intranet strategy. The model includes strategic dimensions as well as cultural aspects and project scope.

2015-01-01T00:00:00Z