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Embedded computer systems

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This book constitutes the refereed proceedings of the third IFIP TC 10 International Embedded Systems Symposium, IESS 2009, held in Langenargen, Germany, in September 2009. The 28 revised papers were selected from 46 submissions. The papers are organized in topical sections on modelling; transaction level modelling; scheduling and real-time systems; simulation, verification and test; platforms and processors; automotive systems; and wireless sensor networks. The volume also includes three case studies and two tutorials.

Computer. Automation --- embedded systems

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Computer. Automation --- embedded systems

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Our environment is increasingly pervaded by embedded systems which are integrated into everyday objects, equipped with sensors and actuators, networked among each other and available at any time and in any location. These computationally augmented real-world objects must be supplied with context-awareness and need to share the perceived context-information to enable them to operate more autonomously. Clemens Holzmann investigates the role of spatial contexts for autonomous embedded systems, in particular the position, direction, and spatial extension of objects with respect to an external reference system or other objects. The author presents concepts for recognizing, representing, and reasoning about qualitative spatial relations and their changes over time, as well as an appropriate architecture which has prototypically been implemented in a flexible software framework. His results show that the proposed concepts are suitable for developing spatially aware applications and that qualitatively abstracted relations can constitute an adequate basis for this purpose.

Computer. Automation --- embedded systems --- informatica

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We present evidence on whether and how a household's behavior is influenced by the presence and characteristics of its extended family. Using household panel data from the Progresa program in rural Mexico, we exploit information on the paternal and maternal surnames of heads and spouses in conjunction with the Spanish naming convention to identify the inter and intra generational family links of each household to others in the same village. We then exploit the randomized research design of the Progresa evaluation data to identify whether the treatment effects of Progresa transfers on secondary school enrolment vary according to the presence and characteristics of extended family. We find that Progresa only raises secondary enrolment among households that are embedded in a family network. Eligible but isolated households do not respond. The mechanism through which the extended family influences household schooling choices is the redistribution of resources within the family network from eligibles that receive de facto unconditional cash transfers from Progresa, towards eligibles on the margin of enrolling their children into secondary school.

Zonder onderwerpscode: economie --- embedded systems