This paper presents a vision-based approach for mobile robot localization. The model of the environment is topological. The new approach characterize a place using a signature. This signature consists of a constellation of descriptors computed over dierent types of local affine covariant regions extracted from an omnidirectional image acquired rotating a standard camera with a pan-tilt unit. Th...

This paper presents a vision-based approach for mobile robot localization. The model of the environment is topological. The new approach characterize a place using a signature. This signature consists of a constellation of descriptors computed over dierent types of local affine covariant regions extracted from an omnidirectional image acquired rotating a standard camera with a pan-tilt unit. Th...

and Technology aalto university school of science and technology abstract of the master's thesis Applications of wireless technologies in medical treatments have been considered for realizing portable medical equipment and remote monitoring. The 60 GHz band can theoretically oer very high data rates for such applications, but the propagation characteristics of hospital environments have not bee...

Verify your progress by letting dierent versions of your program (with and without the improvements) play against each other in a selection of games. Record the results of the comparisons for at least 5 dierent games and send me an email with the results no later than Sunday, Feb 1st 2009 with a short descriptions of the changes between the versions of your program you compared.

Hidden Markov models are widely used for automatic speech recognition. They inherently incorporate the sequential character of the speech signal and are statistically trained. However, the a-priori choice of the model topology limits their flexibility. Another drawback of these models is their weak discriminating power. Multilayer perceptrons are now promising tools in the connectionist approac...

Network location models comprise one of the main categories of location models. These models have various applications in regional and urban planning as well as in transportation, distribution, and energy management. In a network location problem, nodes represent demand points and candidate locations to locate the facilities. If the links network is unchangeably determined, the problem will be ...

This paper describes a universal model for paraphrasing that transforms according to dened criteria. We showed that by using dierent criteria we could construct dierent kinds of paraphrasing systems including one for answering questions, one for compressing sentences, one for polishing up, and one for transforming written language to spoken language .

The analysis of vulnerability in networks generally involves some questions about how the underlying graph is connected. One is naturally interested in studying the types of disruption in the network that maybe caused by failures of certain links or nodes. In terms of a graph, the concept of connectedness is used in dierent forms to study many of the measures of vulnerability. When certain vert...

With the emerging concept of model transformation, information can be extracted from one or more source models to produce the target models. The conversion of these models can be done automatically with specific transformation languages. This conversion requires mapping between both models with the help of dynamic hash tables. Hash tables store reference links between the elements of the source...