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D EFINITIONS Search Engine A search engine is an information retrieval system designed to help find information stored on a computer system.information.

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Presentation on theme: "D EFINITIONS Search Engine A search engine is an information retrieval system designed to help find information stored on a computer system.information."— Presentation transcript:


2 D EFINITIONS Search Engine A search engine is an information retrieval system designed to help find information stored on a computer system.information retrieval systemcomputer system Web Crawler A Web crawler is a computer program that browses the World Wide Web in a methodical, automated manner. World Wide Web Metadata Metadata (meta data, meta-data, or sometimes meta information) is data about data. Source: Wikipedia

3 I NTERNET S EARCHING Characteristics Crawler-Based Search Engines Crawler-based search engines, like Google, create their listings automatically. They "crawl" or "spider" the web, then people search through what they have found. Human-Powered Directories A human-powered directory, such as the Open Directory, depends on humans for its listings. You submit a short description to the directory for your entire site, or editors write one for sites they review. A search looks for matches only in the descriptions submitted.

4 Most all search engines use: Search results that contain exact phrasing - Using the minus sign omits certain words * Using asterisk tells that you are looking for additional terms within that search Toyota * will yield many different Toyota car and truck models Just 'Toyota' will return the official website and related pages. or States that you want to search for one of two phrases

5 In Title: ____ Telling Google to only return pages with the query enclosed in the page title useful when looking for jobs/products that are hard to come by Site: ____ Search results only from the specified website + Yield results that definitely include the words after the plus sign Toyota +News will yield only news stories about the car manufacturer C OMMANDS

6 Advanced Searches Search within the results command On the search results page, you can further narrow your search by clicking the link 'Search Within the Results' towards the bottom of the page. This enables you to enter another search term and only look for matching results in the existing results.

7 Microsoft Bing bought Yahoo Search Now use the same commands and rules They do index and search the web differently Similar search grammar rules as Google Suggested Search function When you search a term, previous searches from other users will appear below the text entry box. Explore Concepts function Appears on the right of the suggestions gives you keywords and searches related to your main search. Yahoo Command ! Will skip by the results page and go to the most relevant results first. Similar to the Im feeling lucky feature of Google Bing Shows fewer results than Google Hover your mouse over the results and can summon extra information. Automatically detects your IP to provide relevant results

8 Bing Shows fewer results than Google If it is certain it understand what youre searching for Hover your mouse over the results and you can summon extra information. Automatically detects your IP to provide relevant results

9 Best known people search engines Most useful Name Username Phone For people with a weak online presence or just a poplar name you may have to sift through a lot of results until you find the one you're looking for

10 Fairly simple to search Must sign in 8 main categories to search People Pages Groups Apps Events Web Pages Keep searching simple People, Groups or Organizations

11 Professional social network Used to house portfolios Great place to find people People Jobs Companies Answers Inbox Groups

12 Ultimate directory to find where people and businesses are located. Pay a small fee to use

13 Database of suspect telemarketers and scammers who have often rang people before These numbers eventually become notorious and are submitted to the database for all to be warned. So if you get a suspect call, it may be worth a search.

14 BitSnoop is a new Torrent search engine Different than other search engines It only returns results that have been filtered and checked for bad links, missing or wrong content BitTorrent is a peer-to-peer file sharing protocol used for distributing large amounts of data.peer-to-peerfile sharingprotocoldata One of the most common protocols for transferring large files, and it has been estimated that it accounts for approximately 27-55% of all Internet traffic (depending on geographical location) as of February (Wikipedia)Internet traffic

15 Specific niche Worlds best resource of archives, information, and document resources. Can search Weather Ireland December 22, 1985 Once you present your task in an objective manner, it should be able to compute it Entering a complicated mathematical problem will return a detailed answer with step-by-step actions to solve it. Excellent tool for students and people compiling reports statistics, historical information, science and math answers as well as everyday random facts

16 RetailMeNot Coupon Codes, Printable Coupons and Grocery Coupons databases stretches over 40,000 stores in almost every western country including the US, UK, France, Holland, Canada and some countries further afield such as India and Australia. Price Grabber Best price comparison website Google Product Search Works in the same way as the regular search engine, except that it caters specifically for products

17 Flickr best bet if you want high quality photographs very high resolution and worthy of a desktop wallpaper Tags are the main different between Flickr and other image searches Google Images offers images from all over the web Basic search works the same as the normal Google however you can tweak your results by using the sidebar options Upload an image to search by instead of text Creative Commons Search search for content all over the web that has a creative commons license means you can use the image so long as you're not directly profiting from it

18 YouTube Easily searchable Users upload Bing Video Search developing quite the repertoire for its video searching Similar to Yahoo and Google TeacherTube Educational friendly videos Downloadable with account Watch Know Learn Educational videos for k-12

19 Blogs Books Google Books eBooks Scribd Jobs Job-Search-Engine Yahoo Jobs Music Deezer Songza Software Torrents IsoHunt Video Vimeo YouTube Webshops eBay Amazon Images Flickr PicItUp Shopping Retailmenot Prices PriceGrabber

20 Always keep the search terms broad to start then narrow it down if your subject isn't popular. Don't use more terms than necessary Most search engines also act as converters. So by entering 500g in ounces, a special field towards the top will give you a conversion with search results displayed below. This works for all units such as currency, temperature, weight, length etc... By searching for a stock symbol (i.e. a code for a particular company on the stock market) you'll be returned with info relating to that company and its shares. Current news stories will always be indexed first if you're searching for an old news story enter a date after your search query.

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