costs parameter meaning in English

成本参数

Project team involvement in the process ? setting the cost parameters
项目组全程参与?设定成本核算的参数
E3d r - tree takes into account the features of moving object data and takes advantage of new cost parameters . in particular , least - cost - first search algorithm is used in the insertion algorithm to find the overall best way to insert a new record in e3d r - tree . the proof of the vidility of the algorithm is given
在e3dr - tree中,结合移动对象数据特征引入空白区域作为新的插入代价参数,同时,在插入算法中利用最小代价优先搜索算法确定全局最优插入路径,并给出算法正确性证明。
When a query on the relational views is issued , it is repeatedly rewritten using the rules . this process generates number of navigation plans to compute the query ; the cost of these plans is then estimated based on a simple cost model that takes network accesses as the primary cost parameter . in this way , an efficient execution plan is selected for processing the query
当根据关系视图发出一个查询时，它被重复的使用重写规则来重写，这个过程产生大量的导航方案来运算查询。这些方案的代价是根据代价模型来评估的。代价模型是用网络访问作为原始的代价参数。