Devising new paradigms for query evaluation and query plan migration.
设计新的查询评估和查询计划变动的范例。
XML query evaluation: Execution plans and new operators.
XML查询计算：执行计划和新操作符。
This process is composed of such sections as recognition of target template, alignment between query sequence and target sequence, modeling, evaluation of structure rationality.
这个过程包括以下几个部分：目标模板的识别、查询序列和目标序列的排列、构建模型和模型的结构合理性评估。
XSIEQ(XML Stream Query with Immediate Evaluation) can evaluate predicates immediately and output in time.
XSIEQ是一种立即计算谓词并即时输出的XML流查询系统。
We tested the aforementioned query methods respectively, and did performance evaluation.
本文分别对上述方法的查询性能进行了测试，并进行了性能评价。
The system actualizes the visual query, spatial analysis and integrated evaluation for the disaster geology in coastal belts in china.
介绍了“中国海岸带灾害地质查询及风险评价系统”开发研制的关键技术及过程。
The results of experiments based on this automatic evaluation method are consistent with the results of the one on the manual judgment, and keep stable to different query sets.
实验显示这一自动方法得到的结果和人工评估实验结果保持一致，并且对不同查询集合保持稳定。
Then, the evaluation factors system of the shortest paths query system based on the network is established, and the analytic and calculative method of each factor and sub-factor is proposed.
然后建立了路网中最优路径查询的评价体系，并给出了各评价因素及子因素的分析和计算方法；
A method for query evaluation in deductive databases is presented, based on discovery of axioms and facts relevant to given query.
在基于与给定查询相关的事实与公理的基础上，给出了演绎数据库的一个产生式推理方法。
XSIEQ(XML stream query with immediate evaluation), a kind of XML stream query system, can evaluate predicates immediately and output in time.
介绍了一种立即计算谓词并即时输出的XML流数据查询系统XSIEQ。
This system realized the functions of information query, variety comprehensive evaluation and recommendation.
系统具有水稻品种的信息查询、综合评价、良种推荐等功能。
The change detection for XML document can be very useful to data storage of XML DW, pattern abstracting of document and incremental query evaluation.
XML文档的变化检测可以广泛应用于构建XML数据仓库中的数据存储、文档模式提取以及增量查询等方面。
In order to speed up the query evaluation, we established the structured mapping for the XML data stored in RDB, and therefore, the frequency of join operations in SQL statement can be decreased.
为了加快查询的执行，我们对存放在关系库中的XML数据建立结构化映射，以减少SQL语句中连接操作的数目。
In order to speed up the query evaluation, we established the structured mapping for the XML data stored in RDB, and therefore, the frequency of join operations in SQL statement can be decreased.
为了加快查询的执行，我们对存放在关系库中的XML数据建立结构化映射，以减少SQL语句中连接操作的数目。
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