主題網(wǎng)絡(luò)蜘蛛搜索策略貪婪性解決方法
發(fā)布時(shí)間:2019-01-27 07:54
【摘要】:主題網(wǎng)絡(luò)蜘蛛搜索策略是專業(yè)搜索引擎的核心技術(shù)。但是目前的主題搜索算法往往存在很大貪婪性,難以在全局范圍內(nèi)找到最優(yōu)解。通過比較分析發(fā)現(xiàn)Best-First算法雖然有它的不足,但是它在幾種算法中表現(xiàn)的性能最優(yōu)。故以Best-First算法為基礎(chǔ),提出了BS-BS算法。對(duì)BS-BS算法進(jìn)行性能評(píng)價(jià),發(fā)現(xiàn)應(yīng)用此算法搜索不但“召回率”有所提高,還能在一定程度上找到全局范圍內(nèi)的最優(yōu)解。
[Abstract]:Topic web spider search strategy is the core technology of professional search engine. However, the current topic search algorithms often have great greed, so it is difficult to find the optimal solution in the global scope. Through comparative analysis, it is found that Best-First algorithm has its shortcomings, but it performs best in several algorithms. Therefore, based on Best-First algorithm, BS-BS algorithm is proposed. By evaluating the performance of the BS-BS algorithm, it is found that the algorithm can not only improve the recall rate, but also find the global optimal solution to a certain extent.
【作者單位】: 燕山大學(xué)信息科學(xué)與工程學(xué)院 燕山大學(xué)信息科學(xué)與工程學(xué)院 燕山大學(xué)信息科學(xué)與工程學(xué)院
【分類號(hào)】:TP391.3
本文編號(hào):2416066
[Abstract]:Topic web spider search strategy is the core technology of professional search engine. However, the current topic search algorithms often have great greed, so it is difficult to find the optimal solution in the global scope. Through comparative analysis, it is found that Best-First algorithm has its shortcomings, but it performs best in several algorithms. Therefore, based on Best-First algorithm, BS-BS algorithm is proposed. By evaluating the performance of the BS-BS algorithm, it is found that the algorithm can not only improve the recall rate, but also find the global optimal solution to a certain extent.
【作者單位】: 燕山大學(xué)信息科學(xué)與工程學(xué)院 燕山大學(xué)信息科學(xué)與工程學(xué)院 燕山大學(xué)信息科學(xué)與工程學(xué)院
【分類號(hào)】:TP391.3
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