查询词典 query

More attention is paid to query expansion in constructing PRIS information retrieval system.

PRIS信息检索系统更侧重于构造简单有效的查询扩展算法。

The property of its randomization has great potential for distributed network systems, and it supports the membership query with a small false positive rate, which is the probability that an element was not in the data set but Bloom filter reported it is.

它的随机特性具有相当大潜力被应用在分散式网路系统，并且支援系统内的会员资格询问加上较低的错误判正率。布隆过滤器的错误判正率是一种事件发生机率，代表一个不属於资料集合的元素被布隆过滤器判定为属於资料集合内。

Secondly, by establishing a discrete time Markov model with spatial reuse for a MANET, we analyze the performance of the network under the AODV routing protocol. The average route length and the probability to communicate within a limited hop distance are obtained. Several performance parameters of the route discovery and route maintain process are analytically studied, such as the probability generating function and the expectation of the flooding distabce. the probability that a route is discovered by a query packet with a "hop limit", the probability that a request packet finds a valid route, the average time needed to discover a valid route and the cost to successfully route a data packet to its destination. Furthermore, we present a concrete example based on the transmitter characteristic of directional antennas and obtain the corresponding results.

建立了移动自组网络空间可重用的离散时间马氏链模型，得到了AODV路由协议下网络任意两节点间的平均路由长度、在指定"跳限"要求下通信的概率；对随选型路由协议下路由发现和路由维护过程中若干网络性能参数进行了解析分析，如网络中任意两节点问的泛洪距离的概率母函数及其期望、限定泛洪步数时成功寻路的概率、发现一条有效路由的平均时间、成功路由的代价等；并基于定向天线的发射特征给出了一个具体实例，分析计算了相应的网络性能参数。

This paper introduces some common query expansion approaches in relevance feedback based on probability model and vector space model,then a new term selection method is introduced based on language model,which takes into account two features of expanded terms-"relevance"and"coverage".

本文介绍了概率模型和向量空间模型下的常用查询扩展方法，并提出了一种基于语言模型的相关反馈方法，该方法同时考虑了扩展词应该具备的两个特征，即相关性和覆盖性。

This paper introduces some common query expansion approaches in relevance feedback based on probability model and vector space model,then a new term selection method is introduced based on language model,which takes into account two features of expanded terms-"relevance"andco...

本文介绍了概率模型和向量空间模型下的常用查询扩展方法，并提出了一种基于语言模型的相关反馈方法，该方法同时考虑了扩展词应该具备的两个特征，即相关性和覆盖性。在TREC测试集上对这些算法进行了比较，结果表明这种新算法在平均准确率上比传统方法有所提高。

Mechanical process based on SQL Server 2000 database system, to standardize the process used to query data.

详细说明：基于SQLSERVER2000的机械工艺数据库系统，用于查询以此规范工艺数据。

Aimed at the characteristic of process industry, combined with the powerful ability of GIS and spatial data mining which express and process spatial data, it is a new way to realize the information query, analysis, prognostication and decision-making functions of CIMS with GIS and spatial data mining applied in industry CIMS and makes sense to promote the development of CIMS.

针对流程工业CIMS的特点，结合GIS和空间数据挖掘技术在描述和处理空间信息时强大的表达和处理能力，将GIS和空间数据挖掘技术运用于流程工业CIMS信息服务和决策支持系统，是实现流程工业CIMS的信息查询、分析、预测、评价和决策的一种新的、有效的途径，对促进流程工业CIMS的发展具有重要的意义。

The algorithm's memory cost doesn't have progressional growth than before, but it realizes high-speed query in multi-dimension. And resolves the problem of processing the range rules.

本文的算法同现存最新的基于TCAM的算法相比，在空间复杂度上没有数量级上的增加，但实现了在多维上高效的查询速度和动态的更新，并且解决了对非前缀规则问题的处理。

He proves he has reached his goal by showing a Prolog session that says "No." to every query.

他表示，他已经达到了他的理想，因为他构造出了的一个Prolog会话，使得它对任何询问都回答"否"。

In short, the more specific a consumer is in the search query, the higher propensity to purchase.

这表明，在网民的搜索请求中，基于本地搜索的消费倾向越来越突出。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！