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1.
随着Internet应用的逐步普及,WWW已成为一个巨大的分布式信息空间,为用户提供了一个极有价值的信息源.从而维文网站也逐步增长,但是因为维文字库编码还没有标准化,所以到目前为止还没有一个针对维文网站的比较实用的搜索引擎,这对维吾尔族用户在网上检索信息带来了极大的不便.本文通过讨论维文网上信息处理中的一些关键技术问题,提出了维文网站搜索引擎的URL遍历、数据采集、查询服务三个核心技术模块的解决方案.  相似文献   

2.
Internet usage logs captured during self‐directed learning sessions were used to determine how undergraduate medical students used five popular sites to locate and access biomedical resources. Students' perceptions of each site's usefulness and reliability were determined through a survey. Google and Wikipedia were the most frequently used sites despite students rating them as the least reliable of the five sites investigated. The library—the students' primary point of access to online journals—was the least used site, and when using Google less than 40% of pages or resources located by students were from ‘high’ quality sources. Students' use of all sites' search tools was unsophisticated. Despite being avid users of online information and search tools, the students targeted in this study appeared to lack the requisite information‐seeking skills to make the most of online resources. Although there is evidence that these skills improved over time, a greater emphasis on information literacy skills training may be required to ensure that graduates are able to locate the best available evidence to support their professional practice.  相似文献   

3.
有效利用网上资源对于促进英语自主学习是很重要的。比较主要的网上英语学习资源包括一些广受欢迎的免费在线词典、一些在线翻译网站、一些网上英语学习论坛等。另外掌握和了解一些利用谷歌搜索引擎查找词汇、查找词汇搭配、证实词汇用法准确性等的简单实用的方法和技巧,对于英语学习者也很有帮助。  相似文献   

4.
Helping students develop criteria for judgment and apply examination skills is essential for promoting scientific literacy. With the increasing availability of the Internet, it is even more essential that students learn how to evaluate the science they gather from online resources. This is particularly true because publishing information on the web is not restricted to experts, and content quality can vary greatly across websites. The responsibility of evaluating websites falls upon the user. Little research has examined undergraduates’ evaluation of web sites in science classes. The purpose of this study was to investigate on which websites college students selected and how they evaluated the websites used when developing individual positions about stem-cell research. We used a qualitative approach in search of patterns in undergraduates’ website selection and evaluation criteria. We found that students used a variety of web resources from eleven types of websites to complete their independent research report. Students also used eleven evaluation criteria to evaluate these sources, some useful (e.g., credibility) and some not useful (e.g., readability). We found that university students struggled with critically evaluating online resources. Undergraduates need prompts to learn how to critically evaluate the science content provided within websites. This type of scaffold can facilitate useful evaluation and promote critical thinking required for becoming scientifically literate.  相似文献   

5.
随着互联网技术及应用的快速发展,网络论坛中信息资源的再生问题成为研究者关注的重点问题。信息资源再生是Web2.0环境下信息资源建设模式的一种变革,是指网络用户在利用信息的同时对现有信息资源进行修复和补充的过程。网络论坛可以视为信息资源再生的一个典型代表,可以从再生资源数量、再生资源质量和用户行为等角度对其进行分析。以网易、新浪和猫扑三大网站的四个版块(财经、教育、数码和旅游)中的550个帖子为分析对象,对其信息资源再生情况的分析表明:不同论坛、不同版块的帖子在浏览次数、回帖次数、每百次浏览回帖数、回帖内容构成等方面存在显著性差异;不同用户在参与帖子数、发帖数、发帖者自顶帖比例等方面存在差异;高价值组和低价值组用户在参与帖子的个数上也存在差异。造成这些差异的因素可以归结为网站和版块规则差异、用户行为差异、论坛主题差异等。总体而言,网络论坛中用户的交互程度较低,对论坛中的内容缺乏深入思考。  相似文献   

6.
An extensive Internet search was conducted to obtain pre-admission information and acceptance statistics from 260 graduate programmes in speech-language pathology accredited by the American Speech-Language-Hearing Association (ASHA) in the United States. ASHA is the national professional, scientific and credentialing association for members and affiliates who are audiologists; speech-language pathologists; speech, language and hearing scientists; audiology and speech-language pathology support personnel and students. Data were collected for analysis from Internet websites of individual academic programmes and ASHA’s EdFind, an online directory for undergraduate and graduate programmes in communication sciences and disorders in the United States. Frequency counts were used to analyse the data. Since graduate programmes are not required by ASHA to report or publish entrance requirements, the information included on the individual websites and ASHA’s EdFind varies widely among the programmes with some information incomplete or not reported at all.  相似文献   

7.
While the use of a search engine to find secondary sources is now a commonplace practice among undergraduate writers, recent studies show that students' online searches often lead to materials that are wholly or partially unsuitable for academic purposes. Accordingly, this project set out to determine whether using a more specialized search engine, Google Scholar, would lead to qualitative differences in the sources selected by second-language (L2) students working on a research-based assignment in a first-year English for Academic Purposes (EAP) course. The participants in this study (N = 27) were required to submit an annotated bibliography consisting of ten sources, sought from print or electronic media, on their research topic. Students were required to indicate how these sources were located (e.g., Google, Google Scholar, the university library's catalogue of electronic resources, or a traditional search for print materials). Three independent raters, who were not given any information on the search mechanisms used, evaluated each electronic source (N = 72) using WATCH, an analytic website assessment scale, [Stapleton, P., & Helms-Park, R. (2006). Evaluating Web sources in an EAP course: Introducing a multi-trait instrument for feedback and assessment. English for specific Purposes, 25(4) 438–455.]. Mann–Whitney comparisons revealed no significant differences between sources obtained through Google Scholar and the university library's catalogue of electronic resources (p set at ≤ 0.05). On the other hand, there were significant differences between Google Scholar and Google sources, as well as between electronic sources obtained through the library and Google, in key areas such as academic rigor and objectivity.  相似文献   

8.
针对化学教学中经常需要查阅使用的化学知识,诸如化合物的IUPAC命名、元素和化合物的性质、合成方法和光谱数据等等,阐述了因特网上含这些信息的网址,以及这些网址的保存和管理方法,对化学教学和科研有促进作用.  相似文献   

9.
为了分析新建应用型本科院校网站的网络影响力,选取安徽省应用型本科高校联盟中所有成员为样本,基于链接分析和网络影响因子理论,给出影响网站的网络影响力指标,使用Google搜索引擎获取相关指标数值,对数据进行统计和对比分析,从而得出安徽省新建应用型本科院校网站的网络影响力,并对结果进行分析和解释,最后提出提高新建应用型本科院校网站网络影响力的建议.  相似文献   

10.
搜索引擎Google享有世界最佳的搜索引擎之称,它的信息检索服务的功能越来越受到广大用户的欢迎和重视。本文详细分析了网络搜索引擎Coogle的功能特色及在信息检索中运用的一些方-法和技巧,同时也讨论了它在信息检索中存在的一些现象和有待解决的问题。  相似文献   

11.
The role of e‐learning platforms in anatomy education continues to expand as self‐directed learning is promoted in higher education. Although a wide range of e‐learning resources are available, determining student use of non‐academic internet resources requires novel approaches. One such approach that may be useful is the Google Trends© web application. To determine the feasibility of Google Trends to gain insights into anatomy‐related online searches, Google Trends data from the United States from January 2010 to December 2015 were analyzed. Data collected were based on the recurrence of keywords related to head and neck anatomy generated from the American Association of Clinical Anatomists and the Anatomical Society suggested anatomy syllabi. Relative search volume (RSV) data were analyzed for seasonal periodicity and their overall temporal trends. Following exclusions due to insufficient search volume data, 29 out of 36 search terms were analyzed. Significant seasonal patterns occurred in 23 search terms. Thirty‐nine seasonal peaks were identified, mainly in October and April, coinciding with teaching periods in anatomy curricula. A positive correlation of RSV with time over the 6‐year study period occurred in 25 out of 29 search terms. These data demonstrate how Google Trends may offer insights into the nature and timing of online search patterns of anatomical syllabi and may potentially inform the development and timing of targeted online supports to ensure that students of anatomy have the opportunity to engage with online content that is both accurate and fit for purpose. Anat Sci Educ 10: 152–159. © 2016 American Association of Anatomists.  相似文献   

12.
精品课程网站建设研究   总被引:2,自引:0,他引:2  
精品课程网站承担了展示精品课程的教学内容与教学方法的重任,但目前存在着申报网站与课程网站区分不明显、网站导航设计不清晰、教学资源贫乏和检索功能不强、交互性不强及缺乏反馈与评价系统等问题,建议通过将网站建设成为动态网站形式、提供与本课程相关的丰富的网络资源、提供功能强大的交互平台、保证网络共享顺畅及具有更新检测与评价反馈系统等措施,使精品课程网站发挥精品课程的真正价值。  相似文献   

13.
综合利用网络中的搜索引擎、在线词典、专业机构网页、百科全书、翻译论坛和博客等资源可以促进翻译选词的正确/恰切性、专业性及文化背景的理解。网助选词不是简单地依赖搜索结果的数量,而是译者利用一定技巧、凭经验和能力进行综合判断、甄别的过程。  相似文献   

14.
当前,高校数字图书馆建设中新媒体的应用路径主要有利用移动通讯媒体进行高校图书馆的数字化建设、利用RSS开展图书馆信息发送服务、利用Wiki和分众分类模式等建立图书馆的资源导航库、利用搜索引擎建设Google图书馆、利用数字电视开辟新的服务栏目等。  相似文献   

15.
采用ASP.NET开发网上求职招聘系统具有更加方便的交互性,给Web带来了全新的动态效果.在互联网中实现数据检索越来越容易,可以高效、及时、全面地存储和搜集大量的人力资源信息,并且进行信息的浏览、搜索和发布,让企业和求职者更加方便地在网上开展人才洽谈、人才交流等工作.本系统采用ASP.NET技术和SQL Server 2005数据库技术开发,基于互联网B/S模式,面向网上进行求职与招聘的用户,对网上招聘系统的信息进行科学的、规范的、安全的管理.  相似文献   

16.
The article examines the opportunities and limitations of the coping behavior of children and teenagers on the Internet and the assistance that they receive from significant adults (parental mediation) in the context of the new developmental social situation, which is mediated by modern information and communication technologies, and in particular the Internet. The study was conducted on the basis of the EUKidsOnline II methodology in 11 regions in seven Russian federal districts (1,025 “parent–child” pairs). The study discovered that the most common risks include sexual and negative content, fraud and theft of personal information, as well as meetings with online acquaintances. The features of experiences and mechanisms used to cope with online risks depend on the predominant activity that a particular teenager pursues online, so that if children are focused on their studies online, they are less exposed to this risk. However, they are more deeply disturbed by such situations and remain so for longer periods of time, and they more frequently employ passive strategies to cope with them. So-called “content consumers” are at the greatest risk of encountering sexual content on the network. These users actively pursue various activities online, including search engines. They experience fewer negative emotions, and they often actively try to cope with the problem while rarely using offline support. There are few opportunities for parental mediation; these include blocking content and reducing the probability that children, and in particular the teenagers that are focused on their studies, will encounter risks. The strategy of explanation and encouragement is effective for teens who pursue various activities on the Internet, and is associated with a more realistic assessment of risk and young people's active use of coping and social support strategies. For the modern teenager, the Internet is a complex psychological “tool,” which he appropriates by probing its capabilities and opportunities for self-regulation, including coping with difficult life situations.  相似文献   

17.
搜索引擎是互联网上应用最为广泛的工具,是用户寻找网上信息和资源的主要途径。搜索引擎营销已经成为网络营销最重要的组成部分。如何使自己的网站被主要的搜索引擎收录,并且得到较好的排名,成为网站建设者们不得不考虑的问题。文章首先阐述了搜索引擎的基本含义,然后介绍了搜索引擎优化的重要意义,最后提出了搜索引擎优化的策略。  相似文献   

18.
随着科技的发展,电子商务日益活跃。现行的电子商务打折网站与生俱来的局限性,越来越跟不上时代的步伐。能否开发一个能够收集全球打折信息的电子商务网站,越来越引起人们的重视。采用精确搜索引擎算法的电子商务精确搜索引擎模型,具有很好的精确性和响应速度,能够查询到精确而全面的打折信息,有较高的实用价值。  相似文献   

19.
因特网的迅速发展,在带来海量信息的同时,也给用户如何更快更好地在其中查找所需信息带来一大难题.图书馆利用自己在管理资源方面的优势,采取了筹建自己的搜索引擎,创建虚拟图书馆,建设数字图书馆等方式对网络信息资源进行管理.  相似文献   

20.
搜索引擎作为互联网信息获取的入口,实现高效、准确的信息获取非常重要,爬虫作为搜索引擎的上游,其重要性不言而喻,特别是大数据时代信息更新频繁,如何在第一时间获取新闻是实现爬虫时效性的重要因素。为了充分利用有限资源,提升带宽利用率,设计一种基于历史数据预测的爬虫调度算法。该算法通过抓取网站历史,更新频次积累数据,使用随机森林回归建立模型,并在系统中实现爬虫调度。实验结果表明,该策略在抓取新链的命中率上提升了46%,平均成本降低了11%,平均抓取延时降低了14%。  相似文献   

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