| home about us free pdf software downloads links privacy site map copyright policy |
|
|
ch02
http://www.oreilly.com/catalog/googlepg/chapter/ch02.pdf Whenever you search for more than one keyword at a time, a search engine has a default strategy when it comes to handling and combining those keywords. Can those words appear individually anywhere in a page, or do they have to be right next to each other? Will the engine search for both keywords or for either keyword? Google defaults to searching for occurrences of your specified keywords anywhere in the page, whether side-by-side or scattered throughout. If you specifically want words to appear together on a page for a match to be made, let Google know by enclosing them in quotes, turning your keyword search into a phrase search, to use Google's terminology. gvs http://www.cs.berkeley.edu/~milch/papers/gvs.pdf We present experiments with various statistical language models, concluding that a unigram model with collocations provides the best combination of broad coverage, predictive power, and real-time performance. We adopted a method for collocation discovery based on the likelihood ratio (Dunning, 1993). We have shown that a commercial speech recognition engine, using a unigram language model over words and collocations, can return the correct transcription of a spoken search query among its top 10 hypotheses about 60% of the time. Because we were not able to use a bigram model without sacrificing real-time performance, including collocations in the language model was crucial for attaining this level of recall. CNET2003_02 http://www.mediasmithinc.com/news/CNET2003_02.pdf Aiming to expand its advertising network, Google is moving beyond selling sponsored links that appear alongside search results to selling similar links on partner sites, including on the pages of newly acquired Blogger. Through its AdWords program, Google lets advertisers bid for placement in search results related to specific keywords; the ads appear as "sponsored listings" alongside those results. Many ad networks saw their fortunes fall with the dot-com bust, but as search-related advertising has emerged as a winner in recent years, it's helped to fuel a revival in the business. Web portal Yahoo similarly has its eye on hosting ad links on relevant Web pages. 2003-002-0060 For a given search query, Toogle first ranks results using Google's algorithm and, as the user browses through the result list, uses machine learning techniques to infer a model of her search goal and to adapt accordingly the order in which yet-unseen results are presented. Today Word Wide Web search engines like Google, among others, search documents for user specified keywords and return a list of document snippets (called results) where the keywords were found. Since result lists typically present a lot of different information, users may type the same query for accessing different documents and, as a consequence, exhibit different browsing behaviors for that query. web search work book http://www.leeds.ac.uk/library/documents/workbook/websearch/websearchworkbook.pdf Access quality web sites and search tools from the University Library web pages Perform a search of the web using a popular search engine Use techniques to refine a search to get more accurate results when web searching Access information gateways and subject indexes to find quality web resources in a range of different subject areas. Things that you need to type are displayed in Courier New bold font Instructions assume that you are using the Internet Explorer browser (the ISS supported Web browser). When you have explored some of the web sites for your subject area, click on the Back button to return to the External web links page. google http://www.swin.edu.au/lib/guides A search for UNIX will find UNIX, Unix, and unix. Searching for a phrase Enclose words in double quotation marks to search for an exact phrase. Google does search for common words when the words are part of a phrase in double quotation marks. To exclude a word Put a minus sign immediately in front of a word to exclude web pages that contain that word. Searching within a specific web site Put site: immediately in front of a domain name to limit your search to pages within that web site. Even though Google indexes billions of web pages, it doesn't include every page on the web. Google_tips http://www.bu.edu/celop/mll/tutorials/pdf_public/Google_tips.pdf It's a "meta" search engine, searching the results of other search engines in addition to searching for itself. It uses a very fast text interface with no pop-up or banner ads. Click "Google Search" to get results that match your search criteria or use "I'm Feeling Lucky," which automatically brings you to the first search result (not to Google's list of results). Tools link for options in four areas relating to language (below). Use the Google search box---even the embedded one on the MLL Students page---as a calculator. When the Internet Explorer Web browser starts up, the MLL Students page loads automatically. askjeeves http://iteslj.org/t/ws/askjeeves.pdf For questions 2-8, you will first write a grammatically correct question on your work sheet for your teacher to mark. Next, type in some key words in the Google search box, navigate the links provided and record the information on your worksheet. First, we would write it in proper question form on our worksheet: When was the Eiffel Tower built? If we do that, the very first link we see on Google is the official web site of the Eiffel Tower: Among the many links on the Eiffel Tower home page, we'll see Facts & Figures. (You can choose any university in that country.) First, write your question here: What ____________________________________________________in Tanzania? 4. A "Chinatown" is a Chinese section of a big city in North America. google http://www.stanford.edu/class/cs240/readings This ranking is called PageRank and is described in detail in [Page 98]. Second, Google utilizes link to improve search results. First, it has location information for all hits and so it makes extensive use of proximity in search. Second, Google keeps track of some visual presentation details such as font size of words. In order to scale to hundreds of millions of web pages, Google has a fast distributed crawling system. Each crawler keeps roughly 300 connections open at once. Google employs a number of techniques to improve search quality including page rank, anchor text, and proximity information. A large-scale web search engine is a complex system and much remains to be done. m2022 http://www.computer.org/micro/mi2003/m2022.pdf Combining more than 15,000 commodity-class PCs with fault-tol-erant software creates a solution that is more cost-effective than a comparable system built out of a smaller number of high-end servers. Here we present the architecture of the Google cluster, and discuss the most important factors that influence its design: energy efficiency and price-performance ratio. As a result, even low-tech PC clusters using relatively straightforward packaging need special cooling or additional space to bring down power density to that which is tolerable in typical data centers. Thus, packing even more servers into a rack could be of limited practical use for large-scale deployment as long as such racks reside in standard data centers. 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | | |