Agents that can learn new tasks through interactive instruction can utilize goal information to search for and learn flexible policies. This approach can be resilient to variations in initial conditions or issues that arise during execution. However, if a task is not easily formulated as achieving a goal or if the agent lacks sufficient domain knowledge for planning, other methods are required....

In this work we propose an innovative approach to data mining problem. We propose very flexible data mining system based on serviceoriented architecture. Developing applications according to SOA paradigm emerges from the rapid development of the new technology direct known as sustainability science. Each of data mining functionalities is delivered by the execution of the proper Web service. The...

This paper presents a formalization of the Web Service composition problem as a search problem in an AND/OR graph, and a search algorithm for searching the graph to identify composite service(s) that satisfies a Web Service request. Given a service request that only can be satisfied by a composition of Web Services, we identify the service categories that are relevant to the request and dynamic...

leadership is in fact a process of influencing followers. characteristics of leadership are functions of time and situation and differ in different cultures and countries. managers of international organizations should obtain enough knowledge of these cultural characteristics and differences and should have the utmost versatility while executing their leadership tasks. in this paper we have con...

We consider the synthesis of reactive systems from specifications with identifiers. Identifiers are useful to parametrize the input and output of a reactive system, for example, to state which client requests a grant from an arbiter, or the type of object that a robot is expected to fetch. Traditional reactive synthesis algorithms only handle a constant bounded range of such identifiers. Howeve...

Passive testing of a network protocol is the process of detecting faults in the protocol implementation by passively observing its input/output behaviors (execution trace) without interrupting the normal network operations. In observing the trace, we can focus on the most expected relevant properties of the protocol specification by defining some invariants on the specification and checking the...

This study investigated the impact of oral pushed output on the learning and retention of English perfect tenses. During the study, a pre-test was administered to 22 freshmen majoring in English translation. The participants were randomly assigned to two groups. Then, for six sessions both groups received explicit instructions on English perfect tenses. Every session, the experimental group rec...

INTRODUCTION Efficiency analysis is necessary in order to avoid waste of materials, energy, effort, money, and time during scientific research. Therefore, analyzing efficiency of knowledge production in health areas is necessary, especially for developing and in-transition countries. As the first step in this field, the aim of this study was the analysis of selected health research center effic...