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Recommended: Search Engines
There are currently over a billion pages of information on the Internet about every topic imaginable. The question is how can you possibly find what you want? Computer algorithms can be written to search the Internet but most are not practical because they must sacrifice precision for coverage. However, a few engines have found interesting ways of providing high quality information quickly. Page value ranking, topic-specific searches, and Meta search engines are three of the most popular because they work smarter not harder.
While no commercial search engine will make public their algorithm, the basic structure can be inferred by testing the results. The reason for this is because there would be a thousand imitation sites, meaning little or no profit for the developers. The most primitive of searches is the sequential search, which goes through every item in the list one at a time. Yet the sheer size of the web immediately rules out this possibility. While sequential might return the best results, you would most likely never see any results because of the web’s inflammatory growth rate. Even the fastest computers would take a long time, and in that time, all kinds of new pages will have been created.
Some of the older ‘spiders’ like Alta Vista are designed to literally roam randomly through the web using links to other pages. This is accomplished with high-speed servers with 300 connections open at one time. These web ‘spiders’ are content based which means they actually read and categorize the HTML on every page. One flaw of this is the verbal-disagreement problem where you have a particular word that can describe two different concepts. Type a few words in the query and you will be lucky if you can find anything relates to what you are looking for. The query words can be anywhere in a page and they are likely to be taken out of context.
Content-based searches can also be easily manipulates. Some tactics are very deceptive, for example “…some automobile web sites have stooped to writing ‘Buy This Car’ dozens of times in hidden fonts…a subliminal version of listing AAAA Autos in the Yellow Pages”(1). The truth is that one would never know if a site was doing this unless you looked at the code and most consumers do not look at the code. A less subtle tactic is to pay to get to the top. For example, the engine GoTo accepts payment from those who wish to b...
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... meta search engine can achieve several advantages:
1 It will present to users a more sophisticated interface…
2 Make the translation more accurate
3 Get more complete and precise results
4 Improve source selection and running priority decisions” (3).
Again the idea of optimizing the Internet through intelligent software shows up. It is just a matter of designing a certain algorithm that does not forget what it has learned.
Most people did not foresee the tremendous growth of the Internet in the 1990’s. Computer algorithms have gone from small government programs to every personal computer in the world. You start with the most basic problem solving and end up with the most complex of problem solving. That of course is sorting through a database that grows almost exponentially.
Plain and simple, the Internet has a lot of information on it. A crawler works twenty-four hours a day digging through it all. The search engine pulls out the parts people want and hands it to the Meta search engine. The Meta search engine further discriminates until you get exactly what you are looking for. Yet behind all this are machines performing the instructions they have been given – an algorithm.
TOPICsearch.com - a search engine. Web.
Helen makes a great point because it wasn’t until a few years ago that technology exploded and began to create all these different forms of databases that can do...
... The history of the internet takes us back to the pioneering of the network and the development of capable technologies. The explosion of the internet’s popularity in the 1990’s was large and dramatic, boosting our economy and then helping to bring it into a major recession. One can only hope that the explosion becomes organized and slightly standardized in the interest of the general public.
This utility lets the end user easily locate information using keywords and phrases. In a few short years this has become the”most widely used searching tool on the Internet.” (Levin, 60) The annual growth rate for Gopher traffic is 997%! (Fun Facts, 50) Up until recently, this Internet protocol had been mainly used by the government and academics. But it has caught on and is being used for business and leisure purposes. If one is interested in the latest NFL scores, schedules and point spreads, they can easily access this information at News and Weather. Business administrators can learn more about total quality management (TQM) by visiting (Maxwell, 299 and 670)
According to Lynch (2008), creating a web based search engine from scratch was an ambitious objective for the software requirement and the index website. The process of developing the system was costly but Doug Cutting and Mike Cafarella believed it was worth the cost. The success of this project unlocked the ultimately democratized algorithm of search engine system. After the success of this project, Nutch was started in 2002 as a working crawler and gave rise to the emergence of various search engines.
The Internet has encyclopedic capabilities that surpass any previous knowledge collecting endeavors. The pages that we move through seem almost infinite, offering different perspectives and intersecting accounts. These qualities lend a feeling of omniscience to the surfer. “The limitless expanse of gigabytes presents itself to the storyteller as a vast tabula rasa crying out to be filled with all the matter of life” (84). Filling this “limitless expanse” is not without complication. “The reality is much more chaotic and fragmented: networked information is often incomplete or misleading, search routines are often unbearably cumbersome and frustrating, and the information we desire often seems to be tantalizingly out of reach” (84).
Finding Information on the Internet: A Tutorial. Retrieved from http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/Evaluate.html. Wikipedia.
In today’s fast paced technology, search engines have become vastly popular use for people’s daily routines. A search engine is an information retrieval system that allows someone to search the...
First of all, where does the word “Google” come from? The name "Google" originated from a misspelling of "googol,” which refers to 10100, the number represented by a 1 followed by one hundred zeros. It found its way to the English language, now the verb "Google", was added to the Oxford English Dictionary in 2006, meaning, "to use the Google search engine to obtain information on the Internet." Their search engine was originally nicknamed "BackRub" because the system checked back links to estimate a site's importance. /// The start of Google was pretty much like the start of every website. It was a research project to these two Ph.D. Students where they hypothesized that a search engine that analyzed the relationships between websites would produce better ranking of results than existing techniques, which ranked results according to the number of times the search term appeared on a page. It was first related to the university’s domain, but then the traffic was so heavy that the university asked them to move their website to a domain outside the university. What made Google this popular was the speed it pulls out information, which is counted in parts of seconds. And also, the size of their data base, according to the instructor of our instructor in MIS class only 60% of data you found on Google are in other web search engines.
Search engines, specifically Google, have probably contributed more to the distribution of knowledge than any other invention since the creation of the printing press. Google was created by Larry Page and Serge...
Search engines are not very complex in the way that they work. Each search engine sends out spiders to bots into web space going from link to link identifying all pages that it can. After the spiders get to a web page they generally index all the words on that page that are publicly available pages at the site. They then store this information into their databases and when you run a search it matches they key words you searched with the words on the page that the spider indexed. However when you are searching the web using a search engine, you are not searching the entire web as it is presently. You are looking at what the spiders indexed in the past.
Basically, it takes half a second to get online and type a subject in the search engine, at which point we have several links to the subject of interest appear on the screen. We then have the option to select the link which most applies to the topic of interest and there we have information readily available on just about any topic.
With the advancement of technology and the exponential increase of Internet use, professionals-academic and business-are relying on electronic resources for information, research, and data. The Internet gives an individual access to a sea of information, data, and knowledge; plus, this vast amount of information is available in a matter of seconds, rather than hours or days. The ease of access, availability, up-to-the-second timeliness, and vastness of online resources is causing many professionals, however, to forgo the use of print sources. Online resources are useful to conduct scholarly research and 'may be convenient, but they have shortcomings that make print sources necessary for submitting high-quality assignments' (Dilevko & Gottieb, 2002, ¶ 1).
The Internet has revolutionized the computer and communications world like nothing before. The Internet enables communication and transmission of data between computers at different locations. The Internet is a computer application that connects tens of thousands of interconnected computer networks that include 1.7 million host computers around the world. The basis of connecting all these computers together is by the use of ordinary telephone wires. Users are then directly joined to other computer users at there own will for a small connection fee per month. The connection conveniently includes unlimited access to over a million web sites twenty-four hours a day, seven days a week. There are many reasons why the Internet is important these reasons include: The net adapts to damage and error, data travels at 2/3 the speed of light on copper and fiber, the internet provides the same functionality to everyone, the net is the fastest growing technology ever, the net promotes freedom of speech, the net is digital, and can correct errors. Connecting to the Internet cost the taxpayer little or nothing, since each node was independent, and had to handle its own financing and its own technical requirements.
Due to the demand for the internet to be fast, networks are designed for maximum speed, rather than to be secure or track users (“Interpol” par. 1). The adage of the adage.... ... middle of paper ... ...