用户还可以部署XQuery来检索那些评价最好且单价低于平均价格的计算机图书。
Users can also employ XQuery to retrieve the list of computer books that have the best reviews and are cheaper than the average price.
为提高检索效果,本文提出单权重相关反馈和先序满意度评价两种权重调整方式。
Two feedback mechanisms are proposed to improve retrieval result, including single weight feedback and first order statisfication evaluation.
我们开展的系统评价是利用PubMed和EMBASE检索1987年1月1日至2007年9月1日出版的各种语言的经同行评议的相关文献。
We conducted a systematic review of the peer-reviewed literature published from 1 January 1987 to 1 September 2007 in all languages using PubMed and EMBASE.
从搜索引擎的工作机理,评价标准,分类,使用方法,使用技巧等五个方面介绍如何利用搜索引擎检索网络信息。
This paper introduce how to retrieve Web information by search engine from five aspects of search engine, working mechanism, standards evaluation, classification, methods and skills.
结果发现,有近三分之一的期刊没有严格执行《中国学术期刊(光盘版)检索与评价数据规范》,共有3136条文献著录错误,有错误18930处。
It shows that about one-third of periodicals don't conform to Data norm for retrieval and evaluation of Chinese Academic Journal (CD) and there are incorrect 3136 references with 18930 faults.
本文介绍了一个英文网络检索工具评价实验。
This article introduced a evaluation experiment on English Internet search tools.
评价一个信息检索系统的标准是该系统在多大程度上满足用户的能力。
The criterion of evaluating an information retrieval system is the ability of how much the system contents the needs of users.
目的运用循证医学的方法检索和评价糖尿病肌梗死的最佳诊断手段。
Objective To obtain the most effective diagnosis method for diabetic muscle infarction by using the evidence based medicine.
然而人们对信息检索的高要求同时也给搜索引擎的评价带来了困难。
But people's high request toward information retrieval also brings difficulty for the assessment.
本文以名人网页为基础,研究实体网页的个性化检索,旨在提高实体网页的相关度评价准确率。
This dissertation is mainly about personalized information retrieval of entity WebPages, trying to find out the way to improve the relevance evaluation precision.
PICOT格式为评价前的证据和包含临床实践问题的原文的检索提供了关键词。
This PICOT format provides key words for a literature search of pre-appraised evidence and original research studies that address the clinical scenario.
检索系统设计和评价的类型包括正式的建模、分析研究、模拟和用户测试。
Types of retrieval system design and evaluation include formal modeling, analytical studies, simulations and user tests.
基于对检索临床经济评价文献的复习,结合检索临床经济评价文献的实践,探讨对获取临床经济评价文献的来源和制定这类文献的检索策略。
Based on review and practice of literature search of clinical economic evaluation, We have discussed the source and search strategy of literatures of clinical economic evaluation.
量化指标评价主要是采用传统检索指标和网络检索指标对搜索引擎进行单项评价。
The quantification index appraisal adopts the traditional searching index and network searching index to appraise the individual event of the search engine.
利用评价结果可以指导案例的检索和案例库的维护,保证CBR系统工作的效率和可信度。
Using the value of case credibility, the case retrieval and case library maintenance can be directed to assure the efficiency and credibility of CBR system.
因此,作者和编辑都应按照《中国学术期刊(光盘版)检索与评价数据规范》要求规范地标注参考文献,尊重他人劳动和成果。
As a result, the author and the editor must regularize its references on the basis of China Journal Index and Assessment Data Standard so as to respect others' labor and findings.
在此基础上,讨论了图像的相似度量以及相应的图像检索技术,并给出了实验结果和图像检索性能的评价。
And based on this, this paper discusses on the similarity measuring and corresponding image retrieval techniques, and gives the evaluation on the test results and the image retrieval performance.
文章提出了一种基于元数据的数据源发现算法,并在召回率、检索精度等方面对这种算法作了评价。
The authors provide a algorithm applied to Source Discovery based on Metadata and evaluated with recall rate and precise rate index.
相关网页排序结果的优劣是检索服务质量好坏的最根本体现,因此网页的相关度评价是个性化检索系统的关键环节。
The service quality is mainly reflected by the sorting results of WebPages, thus the relevance evaluation of WebPages is the key process in the personalized information retrieval system.
本文主要从数据库的学科范围,检索功能、以及结果处理等几个方面对国外三种全文电子数据库进行了比较和评价。
This paper compares and evaluates three kinds of foreign full-text e-journal databases from the aspects of retrieval functions, retrieval result handling and so on.
就医院图书馆对临床人员开展循证医学证据检索和评价工作的客观需求进行调查。
The paper investigates the objective needs of carrying out evidence retrieval and evaluation service for clinicians by hospital libraries.
模型相似性评价技术在面向制造设计、净成形加工,以及相似工艺检索等个领域有重要的作用。
The technique of model similarity assessment is very important in a lot of fields, such as:DFM(Design for Manufacture), Net-shape Maufacturing, Similarity Technology Indexing, etc.
同时提出了采用相关反馈方法,根据用户对检索结果的相关性评价,客观地获取照片新闻主体的文字描述,使检索结果更接近用户目标。
According to user's relevant valuation to searching result, we suggest using relevance feedback to get keywords of news object objectively and make the searching result close to user's need.
在PSB测试集上进行检索实验,并使用多种评价指标进行对比。
The retrieval experiments are carried out on PSB and compared using a variety of evaluation.
同时,根据传统的检索技术评价指标和知识地图自身的技术特点,提出了知识地图的评价指标。
Then some evaluation indexes are put forward in terms of both of the traditional searching technology ranking system and the knowledge map's own traits.
科技情报检索是科研工作中的重要环节,也是科研成果评价的必要手段。
Search of scientific and technologic literatures is an important step in the research work and the necessary means of result appraise.
目的通过对现有医学证据的检索和评价,指导莱姆病关节炎的治疗。
Objective we searched and reviewed medical evidence to find treatment for arthritis of Lyme disease.
搜索引擎的检索效率是评价搜索引擎质量的一个重要指标。
The efficiency of retrieval is an important indicator of judging the quality of search engine.
在对现有的跨语言信息检索各技术路线优劣评价的基础上,提出了基于本体的跨语言信息检索架构。
On the basis of evaluation of the current CLIR technical routes, this paper proposes the Ontology-based cross language information retrieval system architecture.
在对现有的跨语言信息检索各技术路线优劣评价的基础上,提出了基于本体的跨语言信息检索架构。
On the basis of evaluation of the current CLIR technical routes, this paper proposes the Ontology-based cross language information retrieval system architecture.
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