User Behavior in Mass Media Websites

Mass media websites can be worthy to understand user trends in web services. RTVE, the National Broadcaster in Spain is a sample of such kind of service. Trend points to a shorter user interaction over the last three years, and a more straight access to content. Besides the number of pages consumed in a visit is becoming smaller as well. This article reviews these trends with data obtained from public sources, and analyze the distribution of web pages in the client layer and the corresponding distribution observed in the server layer. The two distributions can be characterized by Zipf-like distributions and ?, the degree of disparity in the popularity distribution, is calculated for both. In all cases ? is higher to one implying a huge concentration of popularity on a few objects

Mobile Tourist Guide Services with Software Agents

Applications for mobile devices have some restrictions because of the limited capabilities and heterogeneity of these devices. However, their communication capabilities allow the distribution of the application control and access to information in a network. If we also consider the changing environment when a user moves from one location to another, we should have software that is context-aware and able to adapt to new situations. Agent technology can support these requirements because of its distributed nature and the ability to combine flexible component architectures, some of them with planning and learning capabilities, which are appropriate for adapting to changing environments. In this paper we show one such application, a mobile tourist guide service, which has been built as a multi-agent system, where some agents are deliberative and combine the Beliefs-Desires-Intentions approach with learning capabilities of Case Base Reasoning technique