Ammar Al-Dallal

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Increasing the growth rates of websites’ number has led to the challenge of assisting Web customers in finding appropriate details from the Internet using an intelligent search engine. Information retrieval (IR) is an essential and useful strategy for Web users; thus, different strategies and techniques are designed for such purpose. Currently, the focus on(More)
This paper proposes two IR approaches; the first is IR with GA, which is a GA-based IR approach. This approach introduces modified GA operators that allow IR with GA to achieve high performance. The second IR model is IR without GA, which is based on traditional IR approach. Both enhance the precision and recall of the web search by improving the document(More)
This paper proposes a new solution for Traveling Salesman Problem (TSP) using genetic algorithm. A combinational crossover technique is employed in the search for optimal or near-optimal TSP solutions. It is based upon chromosomes that utilise the concept of heritable building blocks. Moreover, generation of a single offspring, rather than two, per pair of(More)
Supernatants from mixed lymphocyte cultures (MLRs) were tested for modulation of gingival fibroblast growth by both dye and 3H-thymidine uptake assays. Significant levels of inhibition of growth were observed with both assays with 24 and 72 hr MLR supernatants, but stimulation of growth was seen to occur, consistently, with 48 and 96 hr MLR supernatants as(More)
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