Ilhan Aslan

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In this paper we report results of an experiment that investigates the effects of mobile pedestrian navigation systems on the development of route and survey knowledge acquired by the users. In the experiment directions were presented incrementally step-by-step in different modalities (i.e. audio, graphics) and through different media (PDA, clip-on(More)
This paper reports on extensions to a decision-theoretic location-aware shopping guide and on the results of user studies that have accompanied its development. On the basis of the results of an earlier user study in a mock-up of a shopping mall, we implemented an improved version of the shopping guide. A new user study with the improved system in a real(More)
In this paper we regard the navigation aid provided by mobile navigation systems in a real environment and the effects of these mobile assistants to the development of spatial knowledge. Therefore, we report on a user study concerning the acquisition of spatial knowledge. This study sets up on a former study described by Krüger and colleagues and sheds(More)
Normally, mobile pedestrian navigation systems use visually perceptible landmarks to guide their users through the environment. In this article we introduce concepts for the use of auditory perceptible landmarks in route descriptions. Such auditory perceptible landmarks complement their visual counterparts and also stand to be beneficial for certain groups(More)
COMPASS2008 is a general service platform developed to be utilized as the tourist and city explorers assistant within the information services for the Beijing Olympic Games 2008. The main goals of COM-PASS2008 are to help foreigners to overcome language barriers in Beijing and assist them in finding information anywhere and anytime they need it. Novel(More)
We will describe new cross-lingual strategies for the development multilingual information services on mobile devices. The novelty of our approach is the intelligent modeling of cross-lingual application domains and the combination of textual translation with speech generation. The final system helps users to speak foreign languages and communicate with the(More)
We will demonstrate a novel information service system, which is designed and realized for meeting the demanding challenges posed by international mega-events. The system COMPASS 2008 is planned to be the mobile digital companion for participants and visitors of the 2008 Olympic Games in Beijing. Mobile personalized, multilingual and multimodal services(More)
We will describe a field test and its evaluation of a truly novel type of mobile computer programs that will assist foreign tourists in their communication with Chinese people. The software is an electronic phrase book and a translation aid but at the same time a powerful multilingual information system connected to numerous services via the Internet. It(More)
In this paper we describe an exploratory design study of the potentials of taste as a playful interaction modality. We present the design and implementation of LOLL<i>io</i> -- an interactive lollipop that serves as a haptic input device that dynamically changes its taste. We conclude this paper with three basic principles for potential game designs, where(More)
Combining touch screen technology with mid-air gestures into a unified input modality has potential to improve interaction with touch interfaces in cars. Moreover, target objects on a touch screen can be adapted to the proximity of a users' finger in mid-air. In this paper, we present an exploration of this design space based on two studies and various(More)