Rim Ben Messaoud

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Mobile phones equipped with a rich set of embedded sensors enhance participatory sensing to collect data for different applications. However, many challenges arise when selecting participants to perform sensing tasks. Among these challenges, we can cite energy consumption, users' mobility impact and the quality of retrieved data, recently defined as Quality(More)
Participatory Sensing is an emerging paradigm that enables users carrying sensors-equipped smart devices to gather and share data about a particular phenomenon. However, involving individuals in sensing tasks raises new challenges such as the quality of collected data, denoted as Quality of Information (QoI), and the dedicated resources for its acquisition.(More)
Nowadays, smart-devices come with a rich set of built-in sensors besides being full-fledged processing and communicating handsets. This empowers the crowd to collect and share sensed data about various city-related phenomena, a new paradigm denoted as Crowdsensing. In this context, we introduce Sensarena; an end-to-end general-use crowdsensing platform(More)
The new generation of smart devices, equipped with a large variety of sensors, enhances the Participatory Sensing of data. However, many issues arise when selecting participants to perform the sensing tasks. These issues are necessarily related to the limited energetic resources of devices, the impact of users mobility as well as the quality of collected(More)
The ubiquity of sensors-equipped mobile devices has enabled citizens to contribute data via participatory sensing systems. This emergent paradigm comes with various applications to improve users' quality of life. However, the data collection process may compromise the participants' privacy when reporting data tagged or correlated with their sensitive(More)
Participatory Sensing is a new paradigm of mobile sensing where users are actively involved in leveraging the power of their smart devices to collect and share information. Motivated by its potential applications, we tackle in this paper the task assignment problem for a requester encountering a crowd of participants while considering their mobility model(More)
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