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The electronic calendar usually serves as a personal organizer and is a valuable resource for managing daily activities or schedules of the users. Naturally, a calendar provides various contextual information about individual's scheduled events/appointments, e.g., meeting. A number of researchers have utilized such information to predict human behavior for mobile communication, by assuming a predefined...
Just-In-Time Recommender Systems involve all systems able to provide recommendations tailored to the preferences and needs of users in order to help them access useful and interesting resources within a large data space. The user does not need to formulate a query, this latter is implicit and corresponds to the resources that match the user's interests at the right time. In this paper, we propose...
This paper proposes a content based mode in camera based applications and image viewers, where the system recognizes the type of content in the image and automatically links it to other applications. When the device is in content mode, all the images viewed or accessed have an extra context based menu based on the detected data (such as call number and email). The user can switch between the normal...
The paper presents an idea of a context-aware application, which collects context data from many different sources, stores them in a dedicated database and makes use of it to support flexible scenarios for end users. Using open APIs it integrates different types of context information provided by: Unified Communication system, APIs exposed by communication service providers and information from Machine...
The energy consumption in mobile devices had gained more attention from infra-structure carriers and mobile manufacturers with the growth and expansion of third generation networks. The air interface resource allocation is the main factor of the energy consumption increase when the mobile is transmitting in background at anytime. When the air interface timeouts are reduced, there is a reduction in...
Mobile devices that are permanently connected to IP networks are prone to have higher energy consumptions because unsolicited packets also force the device to move to a state where the consumption is higher. We consider a simplified model for the energy consumption based on the average consumptions in the different states and the time the device stays in each state. We perform discrete event simulations...
Utilizing mobile applications in the area of industrial field service promises several benefits, especially improved process support due to a tight integration of mobile workers and tailored information support. In this paper, we describe four mobile service business patterns derived from two industrial case studies. The first case study deals with the seamless integration of service engineers, while...
In this paper, we present a novel method for image annotation and retrieval on mobile device by using contextual information. Image annotation is an effective way for content based image retrieval. However, manual annotation is an expensive and time consuming work, especially for mobile device. Here, we propose a semi-automatic way to give image annotation on mobile device. There are rich contexts...
The appearance of a product has led to a trend for a consumer to purchase a product. Some products have shapes or parts that don't fulfill the consumer's desires and needs. This mean that often, choice of a consumer is inspired by the shape of a product. Therefore, It might be interesting to study on perception of shape in terms of semantic associations. The aim of this study is to investigate people's...
Inference of high-level context is becoming crucial in development of context-aware applications. An example is social context inference - i.e., deriving social relations based upon the user's daily communication with other people. The efficiency of this mechanism mainly depends on the method(s) used to draw inferences based on existing evidence and sample information, such as a training data. Our...
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