This article deeply analyses the development status of search engine retrieve performance measurement in the native and abroad, then a measurement method based user path model was established.

本文分析了国内外搜索引擎检索性能度量的研究状况，提出了一种基于用户路径模型的性能度量方法。

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In research of path planning of fruit picking robot the probabilistic roadmap method is adopted to achieve on-line planning with heuristic search arithmetic.

在综合分析路径规划研究的基础上，采用基于概率地图的路径规划方法，运用启发式搜索算法对水果收获机器人机械臂运动路径进行实时规划。

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This method USES intermediate nodes' location information to create undirected graph at destination node, and USES Breath-First Search (BFS) algorithm to find another disjoint path.

本文提出的方法在目的端利用获得的中间节点位置信息来生成无向图，再利用广度优先遍历算法BFS计算出另外一条不相交路径。

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