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[搜索引擎] 元搜索引擎与目录

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發表於 昨天 10:15 | 顯示全部樓層 |閱讀模式
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搜索看看︰元搜索引擎与目录
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元搜索引擎与目录


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Dogpile——借助元搜索技术,Dogpile能返回来自Google、Yahoo!、Bing和Ask等领先搜索引擎的所有最佳结果,让你更快找到所需信息。
每个搜索引擎都有自己的搜索方法,每个都会返回不同的结果。Dogpile 会查看所有这些,决定哪些与你的搜索最相关,剔除重复并向你展示。最终,你会得到一份比网络上任何地方都更完整的结果列表。
Ixquick——使用Ixquick搜索引擎搜索时,你实际上是在同时且匿名地搜索多个热门搜索引擎。这些搜索引擎合计覆盖的互联网范围超过单一搜索引擎。
每个选择Ixquick作为你搜索中十大最佳结果之一的搜索引擎都会获得一星。所以五星结果意味着有五个搜索引擎一致认可该结果。
这很重要,因为搜索引擎选择结果的方式不同,每种方法在某些情况下效果良好,有时则效果不佳。选择多星的结果有多种原因,并且是许多搜索引擎的共识选择。
此外,虽然无关网页可以被“优化”以欺骗单个搜索引擎的算法,但单个页面要骗过所有搜索引擎则要困难得多。
Ixquick的搜索结果比其他搜索引擎更全面、更准确。Ixquick的独特功能包括通用能力搜索、全局搜索和能力优化功能。
通过Ixquick的国际电话簿查找全球电话号码和地址,或通过Ixquick视频搜索搜索1800万小时的视频乐趣。
Mamma.com - Mamma 是一个“智能”元搜索引擎——就像同时使用多个搜索引擎。成立于1996年,它是当今网络上最早且最受欢迎的搜索引擎之一,拥有丰富的历史。
MetaCrawler - MetaCrawler.com 利用元搜索技术,汇总网络上许多主要搜索属性的结果,每次搜索都能获得更相关、更全面的结果。通过为每个查询访问多个搜索引擎,MetaCrawler.com 为你提供比单一搜索引擎更丰富、更相关的结果。
您获得的搜索结果是网络上最受欢迎的搜索引擎中顶级商业(赞助广告)和非商业(算法)结果的组合。MetaCrawler的元搜索技术会根据你的具体查询,将每个不同搜索引擎的排名前列结果合并起来。某一搜索词的赞助与非赞助结果的组合取决于该术语的性质,但赞助结果总是明确标注为“赞助”或类似标识。
MetaCrawler.com 网络搜索旨在识别用户搜索的意图,结果通常按从各搜索引擎提供商收到的相关性排序。具体排名及赞助与非赞助结果的组合将取决于您的搜索性质。例如,如果你搜索数码相机价格信息并输入“数码相机价格”一词,结果通常会包含更多赞助结果,并包含包含企业出售相机价格的商业网页。另一方面,如果你搜索的是学术或一般研究目的并输入“数码相机技术”一词,结果将更多地偏向关于数字相机技术的文章、信息及其他非商业性结果。
Myriad 搜索——Myriad 是由 www.seobook.com 开发的无广告元搜索工具。
37.com - 37个搜索引擎合而为一。输入一次,即可获得多达37个搜索引擎的结果。
Clusty - Clusty 查询多个顶级搜索引擎,合并结果,并基于比较排名生成有序列表。这种“元搜索”方法有助于将最佳结果提升到顶部,并将搜索引擎垃圾信息推到底部。
但真正让Clusty独特的是你搜索后会发生什么。我们的搜索引擎不再将数百万个搜索结果集中在一个长列表中,而是将相似结果分组成群组。集群帮助你按主题查看搜索结果,从而准确定位你想要的内容,或发现项目间意外的关联。你上一次进入搜索结果的第三或第四页是什么时候?这些集群帮助你找到可能错过或深藏在排名列表中的页面,而不是一页页滚动。
InfoSpace - 体验元搜索的力量?在InfoSpace上搜索网络,获取来自领先搜索引擎的所有最佳结果,以及黄页、白页甚至Twitter的结果。
MegaCrawler - 通用目录和搜索功能。
怪兽爬虫——怪兽爬虫将所有主流搜索引擎的力量汇聚于一个搜索框中,提供最佳综合结果。这就是我们所说的元搜索。这一过程更高效,也产生了更多相关的结果。
Search.com - 通过在一个地方搜索最佳引擎,搜索网络。
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Meta search engines and directories


Meta

Dogpile - Powered by Metasearch technology, Dogpile returns all the best results from leading search engines including Google, Yahoo!, Bing and Ask, so you find what you're looking for faster.
Each search engine has its own method of searching and each will return different results. Dogpile looks at all of them, decides which are most relevant to your search, eliminates duplicates and reveals them to you. In the end, you get a list of results more complete than anywhere else on the Web.
Ixquick - When you search with Ixquick search engine, you are searching many popular search engines simultaneously and anonymously. Combined, these engines cover more of the Internet than any one search engine alone.
An Ixquick result is awarded one star for every search engine that chooses it as one of the ten best results for your search. So a five star result means that five search engines agreed on the result.
This is significant because search engines choose results in different ways, and each approach works well in some cases and poorly in others. A result with many stars was chosen for many different reasons, and is a consensus choice of many search engines.
Also, while irrelevant Web pages can be "optimized" to fool a single search engine's algorithm, it is much harder for a page to fool all the search engines.
Ixquick search results are more comprehensive and more accurate than other search engines. Ixquick's unique capabilities include a Universal Power Search, a global search and power refinement.
Find phone numbers and addresses worldwide with Ixquick's International Phone Directory, or search through 18 million hours of video fun with Ixquick's Video search.
Mamma.com - Mamma is a "smart" metasearch engine - it's like using multiple search engines, all at the same time. Founded in 1996, its one of the first and most popular search engines on the web today, with a rich history.
MetaCrawler - MetaCrawler.com utilizes metasearch technology to compile results from many of the Web's major search properties, delivering more relevant and comprehensive results every time you search. By accessing multiple search engines for each query, MetaCrawler.com provides you with a richer and more relevant spectrum of results than you would from using any single search engine.
The search results you receive are a combination of the top commercial (sponsored advertising) and non-commercial (algorithmic) results from the most popular search engines on the Web. MetaCrawler?s metasearch technology combines the top ranking search results from each of the separate search engines based on your specific query. The blend of sponsored and non-sponsored results for a given search term depends on the nature of the term, but sponsored results are always clearly identified with a "Sponsored" or similar designation.
MetaCrawler.com web search is designed to identify the intent of a user's search and results are generally listed in order of relevance as they are received from the various search engine providers. The specific ranking and mixture of sponsored and non-sponsored results will depend on the nature of your search. For example, if you are searching for information about the prices of digital cameras and enter the term "digital camera prices," the results will generally include more sponsored results and include commercial Web pages containing information on the prices businesses are offering cameras for sale. If, on the other hand, you are searching for academic or general research purposes and enter the term "digital camera technology," the results will be weighted more toward articles, information and other non-commercial results about the technology behind digital cameras.
Myriad Search - Myriad is an ad free meta search tool created by www.seobook.com.
37.com - 37 search engines in one. Type Once, get results from up to 37 search engines.
Clusty - Clusty queries several top search engines, combines the results, and generates an ordered list based on comparative ranking. This "metasearch" approach helps raise the best results to the top and push search engine spam to the bottom.
But what really makes Clusty unique is what happens after you search. Instead of delivering millions of search results in one long list, our search engine groups similar results together into clusters. Clusters help you see your search results by topic so you can zero in on exactly what you?re looking for or discover unexpected relationships between items. When was the last time you went to the third or fourth page of the search results? Rather than scrolling through page after page, the clusters help you find results you may have missed or that were buried deep in the ranked list.
InfoSpace - Experience the power of Metasearch ? search the Web on InfoSpace to get all the best results from leading search engines, plus results from Yellow Pages, White Pages and even Twitter.
MegaCrawler - General directory and search.
Monster Crawler - Monster Crawler combines the power of all the leading search engines together in one search box to deliver the best combined results. This is what we call metasearch. The process is more efficient and yields many more relevant results.



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