Location-based services (henceforth referred to as LBS) have emerged as an important component of mcommerce strategy. Location can determine consumers’ information needs and their product and service choices. We propose and evaluate different architectures for LBS considering that service provider allocates at different locations its information. Finally, we propose some design rules that consi...

Remote sensing is increasingly used to assess disaster damage, traditionally by professional image analysts. A recent alternative is crowdsourcing by volunteers experienced in remote sensing, using internet-based mapping portals. We identify a range of problems in current approaches, including how volunteers can best be instructed for the task, ensuring that instructions are accurately understo...

In this article, we address the rarely discussed problem of connecting high-level information (e.g., aggregated states and enemy intentions) to information acquisition. Our approach is to partition the transition of information need to sensor management into a set of comprehensible entities (information types and functions), which we present in a framework. The framework is stepwise (sequential...

This study builds on Laufer and Hulstijn’s (2001) motivational-cognitive construct of task-induced involvement in learning vocabulary and addresses itself to its strong claim that the depth of processing is the overriding factor in learning words. The paper first re-examines the effect of processing load and then of task type on the initial learning and retention of words. To do so, 60 EFL lear...

abstractthe current study examined the modification devices (mds) used by non-native speakers (nnss) learning efl during dyadic task-based interactions. three meaning-oriented tasks, namely picture-description, spot-the-difference, and opinion-exchange, were used to elicit data from 24(12 male and 12 female, forming 4 male-male, 4 female-female, and 4 male-female dyads) iranian efl learners wit...

We propose an approach for the integration of collaborative observation and localization within a separate multi-robot mission. The proposed approach will allow individual robots within a team to evaluate and choose a task based on the needs of the mission and the needs, capabilities, and task choices of teammates. Tasks will include mission-related tasks as well as task for self-localization, ...

In the present study, an exploratory approach (Oxford, Cho, Leung & Kim, 2004) to language learning is adopted which holds that the number and type of strategies used by Iranian learners might vary with respect to the difficulty of task and their L2 proficiency. In this regard, the term task is defined, its leading dimentions and charecteristics are put forward, and the nature of learning start...