Large and distributed environments usually generate huge amounts of information. The easiest way to deal with this information in an uncoupled and asynchronous way is using event oriented approaches. These systems are usually implemented to react to the generated information. This paper presents a new track to add to these architectures a mechanism to discover behaviors combined with a reasonin...

Mechanisms for compressing text have been studied for many years, and a wide range of effective methods has been developed. But compression of text makes it unwieldy in other ways – it must be decompressed before being viewed, and it is harder to directly search. One way of addressing these concerns is to build an index for the source document, and search via a query interface [Witten et al., 1...

In the human brain, beneath the symbolic-type reasoning modeled by traditional rule-based systems, there is another level of computation. It is impleented in a subsymbolic substrate, in which operations are carried out by local interaction of simple computing element, without any central guidance. This substrate is especially evident in perception although, due to the physical \implementation" ...

Performance management is considered as a tool to implement strategies and policies, and research organizational goals, and its main purpose is to increase the capabilities, competencies and growth and development of human resources. Such a view of performance management requires the existence of features that make the system efficient and effective, and realize the flexibility and dynamism of ...

So far computer cannot satisfyingly solve many tasks that are extremely easy for human, such as image recognition or common sense reasoning. A partial solution is to delegate algorithmically difficult computation task to human, called human computation. The Game with a Purpose (GWAP), in which computational task is transformed into a game, is perhaps the most popular form of human computation. ...

There is a growing belief that the agents' cognitive structures play a central role on the enhancement of predicative capacities of decision-making strategies. This paper analyses and simulates the construction of cognitive social structures in the process of decision making with multiple actors. In this process it is argued that the agent's rational choices may be assessed by its motivations, ...

We have reachable a new approach to provide authentication and confidentiality in a broker-less content-based publish/subscribe system. Security is highly challenging in this system. In the project, security is provided by adapting the Cipher text policy attribute based encryption. This over all approach provides fine-grained key management and the efficient cost for encryption, decryption, and...

We introduce and solve a new class of “downward-recursive” static portfolio choice problems. An individual simultaneously chooses among ranked stochastic options, and each choice is costly. In the motivational application, just one may be exercised from those that succeed. This often emerges in practice, such as when a student applies to many colleges. We show that a greedy algorithm finds the ...

The vast availability ofmobile phoneswith built-inmovement and location sensors enables the collection of detailed information about human movement even indoors. As mobility is a key element of many processes and activities, an interesting class of information to extract is movement patterns that quantify how humans move, interact and group. In this paper we propose methods for detecting two co...