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In this paper, we identify and discuss several groups of issues that arise in the design of interfaces for multiple users interacting with multiple devices. We analyze in what ways these interfaces differ from traditional single-user single-device interfaces, and identify different characteristics of interfaces. We categorize a possible set of device types(More)
Mobile and outdoor environments have long been out of reach for speech engines due to the performance limitations that were associated with portable devices, and the difficulties of processing speech in high-noise areas. This paper outlines an architecture for increasing speech recognition rates in a mobile pedestrian indoor/outdoor navigation environment,(More)
In everyday life, it is useful for mobile devices like cell phones and PDAs to have an understanding of their user's surrounding context. Presentation output planning is one area where such context can be used to optimally adapt information to a user's current situational context. This paper outlines the architecture of a context-aware output planning(More)
Navigation services can be found in different situations and contexts: while connected to the web through a desktop PC, in cars, and more recently on PDAs while on foot. These services are usually well designed for their specific purpose, but fail to work in other situations. In this paper we present an approach that connects a variety of specialized user(More)
Accompanying the rise of mobile and pervasive computing, applications now need to adapt to their surrounding environments and provide users with information in the environment in an easy and natural manner. In this paper we describe a user interface that integrates multimodal input on a handheld device with external gestures performed with real world(More)
The increasing trend towards powerful mobile phones opens many possibilities for valuable personalised services to be available on the phone. Client-side personalisation for these services has important benets when connectivity to the cloud is restricted or unavailable. The user may also nd it desirable when they prefer that their user model be kept only on(More)
In this paper, we describe a near-complete Pocket PC implementation of a Mobile Multi-Modal Interaction (M3I) platform for pedestrian navigation. The platform is designed to easily support indoor and outdoor navigation tasks, and uses the combination of several modalities for presentation output and user input. Whereas 2D/3D-graphics and synthesized speech(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)