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As an active research field, database keyword search (KWS) has put much emphasis on the performance issues, due to its high computational cost. However, a closer examination on KWS reveals other interesting aspects worth noting. In this paper, we examine KWS from a broader perspective, particularly from its relationship with data mining. Freed from syntax-related considerations, KWS users now have...
A new ontology based approach is proposed to model and operate chatbots (OntBot). OntBot uses appropriate mapping technique to transform ontologies and knowledge into relational database and then use that knowledge to drive its chats. The proposed approach overcomes a number of traditional chatbots drawbacks including: the need to learn and use chatbot specific language such as AIML, high botmaster...
In web service composition, there exist various web services that provide the same functionalities but differ in QoS parameters. Hence there exist several execution plans with different QoS attributes which fulfill user constraints. We propose in this paper an algorithm for selecting an execution plan which satisfies as much as possible user end-to-end QoS requirements and preferences. The algorithm...
The idea of applying the biological principle of natural evolution to artificial systems, introduced more than three decades ago, has seen impressive growth in the past few years. Usually these artificial systems group bio-inspired systems, evolutionary computation, artificial life, etc. This convinced all that nature has much we might be inspired by when designing our systems and the genetics is...
Wireless sensor networks provide a lot of interesting to monitoring applications. However, the problem of limited energy of sensor disrupts the proper functioning of the network by limiting its lifetime. In fact, the aspect of minimize energy consumption and maximize lifetime of sensor networks is constituted a real challenge. In this paper, we propose a novel distributed power control scheme (DPCS)...
Correlation generally shows the relationship between variables. A judicious use of this relationship may yield a measure of performance for a given algorithm. In this study the correlation measure RP2 derived from the Unreplicated Linear Functional relationship (ULFR) model will be shown to be a useful measure of performance in selected procedure or algorithm for a particular image registration method,...
Artificial Immune Systems (AIS) is an emerging bio-inspired computer science technique which embody the principles of biological immune systems for tackling complex real-world problems such as pattern recognition. Among the several immune-computing models, Artificial Immune Recognition System (AIRS) is one of the widely used for classification problems. Meanwhile, the issues related to writer identification...
In this paper a classification and control system based on the use of personal computer is realized for people who want to achieve their documents in public utility offices. It is specially designed to bring about order, efficiency and comfort in different places. It consists of two parts, the first is software program designed in Visual Basic, Which will be used to classify people according to their...
This work falls within the framework of natural language processing. Our goal is to develop a machine translation system from Arabic to any target language using a purely linguistic method as a key to get insights into the standard layer-based structure of linguistic phenomena (morphology, syntax and semantics) as well as in recognizing the interaction between them, which we think is the most appropriate...
The Dead Sea (DS) basin plays a major role for regional economic development (industry, tourism and agriculture) in Jordan. Different studies stated that the water level of the DS is dropping an average of 3 feet per year. Accordingly there is a need to provide accurate and reliable estimates for the water level to help the researchers and geologists of the DS to make different kind of studies giving...
This paper handle the design and implementation of the SIMD Vector Processor on FPGA, this processor consist of 4 parallel lanes (processing elements PEs) that work simultaneously independent with each other, each one of those lanes has its own arithmetic units, vector register file which represents a part of the main distributed register file also it has a local memory for storage of execution results...
Web users want a quick and accurate access to images. The method currently used by search engines is the analysis of text surrounding an image which usually causes errors. Since there is a huge gap between the content of the image and the textual description associated. Hence, realizing a search engine for images in the web considering their contents became therefore mandatory. In this paper, we propose...
An agent can play one or more roles. A role is a specific behavior to be played by an agent, defined in terms of permission, responsibilities, activities, and of its interactions with other roles. An agent plays a role by actualizing the behavior in terms of services to be activated and de-activated in dependence of specific pre-condition and post-conditions. So the need to develop a model representing...
Automatic correspondence generation between two ontologies, is of great difficulty due, on one hand, to conceptual and habit differences between ontology development communities. On the other hand, alignment difficulties grew exponentially with the number and volume of the involved data. This work presents a proposition of an alignment algorithm XMap++; where the approach originality consists in taking...
This paper presents an approach for transforming UML Statecharts to General Stochastics Petri Nets. Unified Modelling Language (UML) is considered to be the standarditized language for modelling and describing systems behaviours for analysis. In other hand, Petri Net models are tools for the performance analysis of distributed systems. Graph grammars aims to bridge the gap between semi formal models...
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