首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
自考
Searching by keyword is the most common method of using a search engine, but the problem with keywords is the relatively impreci
Searching by keyword is the most common method of using a search engine, but the problem with keywords is the relatively impreci
admin
2017-01-30
44
问题
Searching by keyword is the most common method of using a search engine, but the problem with keywords is the relatively imprecise results and the return of a lot of irrelevant information. Keywords may have more than one meaning and search results may be found only by using a synonym of the keyword. The method of browsing on the other hand takes too much to find the relevant information. Directories like Yahoo try to circumvent the problem, but the manual process of classifying material on the web takes up too much time, resulting in very few search results, as not everything on the web can be classified. Therefore new paradigms of searching are needed as well as new software that is able to categorize web sites automatically.
The majority of search engines come from the United States and has specialized in English resources and information reflecting the American culture. People who do not speak English or who are non-native speakers have therefore many disadvantages on the web.
The centralized approach to information retrieval has extreme difficulty in coping with the multilingual and multi-cultural nature of the information society. The Internet has become a success throughout the world, but the American search engines operate with a US-centric company structure and tend to concentrate upon the English language. Although many search engines have subsidiaries in many other countries, like Japan or Italy, the way the information is presented is the American way and may not reflect the logic of the people who are using it.
National search engines in Russia or France, for example, have to deal with far smaller sets of information and specialize in the cultural and linguistic environments that they know best. Their disadvantage is that the queries are in Russian or French and the search results contain only a small subset of possible results on the web, as they are restricted to the language. This strongly reduces the possibility of using the Web as a source for the worldwide diffusion of information.
Larger search engines, such as Altavista are able to perform multilingual searches, which presents search results in multiple languages. This is good, if the searcher knows all the languages, but if, for example, an Indian finds a Japanese web site on the search topic, this may not be helpful.
Text documents that are in special formats(such as Postscript or Star Office Documents)are unreachable for many search engines, as the textual information is embedded into the binary structure of the particular file format. The same applies to scanned documents, Java applets and video/ audio clips. The content of these file formats is hidden from search engines today. Only if the description of the file format is known and included into the search engine is it possible to add the content for certain document types. This is relatively easy, just a matter of work. Infoseek for example, is able to index the content of Word documents. More difficult is the inclusion of content that is hidden in applications, as there is no way to tell where the information may be hidden.
The research and development in information and data retrieval is aimed at improving the effectiveness and efficiency of retrieval. Individual and parallel development for database management systems has left this sector without a centralized vision and coordination between the different types of search engines. Search engines on the Internet are very specific and not able to cope with multiple database formats and file types. In order to make searches complete a search engine needs to search over text, documents, images, sounds and all other media formats. So the database integration will be the single most important objective for the future of intelligent search engines.
Which of the following is true about the search engines from the U.S.?
选项
A、All of them specialized in English resources and information.
B、They operate with a US-centric company structure and tend to concentrate on various languages.
C、They provide only cultural resources and information.
D、It is not convenient for non-English speakers to use.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/AEPR777K
本试题收录于:
电子商务英语题库经管类分类
0
电子商务英语
经管类
相关试题推荐
(2006年04月)__________,即协助买卖成交、推销产品,但对所经营的产品没有所有权的营销中介。
(2011年04月)某企业采用的市场跟随战略为在某些方面紧跟主导者,而在另一方面又自行其是,不盲目跟随的同时还发挥自己的独创性,这种跟随战略称为__________。
近年来,随着人们收入水平的提高,旅游消费人群不断扩大,大学生假期旅游已成为一种时尚。李晓、王明、周梁是某高校大三学生,他们平时关系甚好。在李晓的建议动员下,三人与各自家长经过反复沟通、商议,并在家长那里获取足够的旅游资金后,决定于2008年暑期在国内选择一
简述账簿和账户的区别与联系。
Severalregionsintheworldaresubject【C1】______stormswhicharesoseverethatthey【C2】______damageonatremendousscale.Th
Severalregionsintheworldaresubject【C1】______stormswhicharesoseverethatthey【C2】______damageonatremendousscale.Th
Severalregionsintheworldaresubject【C1】______stormswhicharesoseverethatthey【C2】______damageonatremendousscale.Th
Itisnotsurprisingthatpeople【C1】______everassociateBritainwithwineandillfactitmayastonishyoutolearnthatgrapes
Therearetwowaystocreatecolorsinaphotograph.Onemethod,calledadditive,startswiththreebasiccolorsandaddsthemt
当确定了企业电子商务网站的整体规划后,开始建立网站的具体工作,首先要做的是
随机试题
管理者采取走动式管理,现场解决问题,及时激励员工,并通过吃饭时的闲聊、郊游或聚会时的谈话等,随时传递关于工作或组织的信息。这指的是绩效沟通方式中的【】
A.呼吸性碱中毒B.代谢性碱中毒C.呼吸性酸中毒D.代谢性酸中毒E.呼吸性和代谢性酸中毒缺钾时常伴有
治疗创伤的核心是()。
《脾胃论》提出的"甘温除热"的代表方剂
A.1岁B.2岁C.3岁D.4岁E.5岁小儿T细胞分泌IL-4达成人水平的年龄是
()不受一物一权主义的限制。
已知:如图,AB=AC,以AB为直径的⊙O交BC于点D,过D作DE⊥AC于点E。求证:DE是⊙O的切线;
一般将缅甸所产的经过风化或经河水搬运至河谷、河床中翡翠大砾石,称为“老坑玉”。老坑玉的特点是“水头好”、质坚、透明度高,其上品透明如玻璃,故称“玻璃种”或“冰种”。同为老坑玉,其质量相对也有高低之分,有的透明度高一些,有的透明度稍差些,所以价值也有差别。在
阅读短文,完成106—110题。抗生素是现在家庭小药箱中的必备药,但是人们在使用抗生素方面还存在许多误区。有的人认为抗生素越贵越好;有人感冒时用抗生素来抗病毒;有人用青霉素来预防胆囊炎;有的人把几种抗生素类药物同时服用。有关专家说,这些认识都不正确
Whichindustryistheman’swebsiteconcernedwith?
最新回复
(
0
)