By Jose Nuсez The closest search engines have come to actual applications of this technology so far is know as "Associative Indexing" and it is put in effect under Stemming, or the indexing of words on the basis of their uninflected roots (plurals, adverbs, and adjectival forms are reduced to simple noun and verb forms before indexing). Latent Semantic Analysis (LSA) is a technique in natural language processing, in particular in vectorial semantics, invented in 1990 [1] by Scott Deerwester, Susan Dumais, George Furnas, Thomas Landauer, and Richard Harshman. In the context of its application to information retrieval, it is sometimes called Latent Semantic Indexing (LSI). Here are some quick facts about Latent Semantic Indexing: 1. LSI is 30% more effective than popular word matching methods. 2. LSI uses a fully automatic statistical method (Singular Value Decomposition) 3. It is very effective in cross-languages retrievals. 5. LSI can retrieve relevant information that does not contain query words. 6. It finds more relevant information than other methods. Latent Semantic Indexing adds an important step to the document indexing process. In addition to recording which keywords a document contains, the method examines document collections as a whole, to see which others do contain some of those same words. LSI considers documents that have many words in common to be semantically close, and ones that have few words in common to be semantically distant. This method correlates surprisingly well with how a human being looking at content, classifies multiple documents.
Sunday, September 18, 2016
Saturday, September 10, 2016
Search engine optimization and web design
In the early days of the world wide web, having a good web presence meant that you must have a good web site full of rich content, and a good internet address that goes with it. It’s a generally accepted practice to publicize your Internet address to the world – well, at least to as much of it that you could cover. You Internet address, technically referred to as the URL of your website, became your key in making your site successful. The more Internet users that know of your website’s URL, the more people will visit it. But that was before the Internet boomed, before its user base multiplied by millions, and before almost everyone else built web sites of their own, competing with your own in attracting users and readers. That was before modern search engines came to be, way before Google became a household verb, and changed the Internet in big ways. Now in the modern age of the internet, where search is the second most popular activity in the net, having a bumper sticker of your web site’s URL is no longer as cool or as effective as it used to be. You must now rely on one of the major pillars of a successful web site design – search engine optimization. Search engine optimization is the method of increasing a web site’s ranking in search engine results listing. Before going further into the details of search engine optimization, it is good to know why it’s important to rank well in these listings and how it came to be. Let’s see for example how a good web designer that is fully unaware of search engine optimization will lay things for a typical web design project: a very clear purpose for the website, a good aesthetic design, clear and concise words that are aptly toned for the target audience, an intuitive navigation and usable user interface, and for the writers’ part, a content that is rich and relevant and no-nonsense. All things done right. In the end the client will have in his hand a well-designed web site full of information and content that is ready to take on the world of the Internet. Or is it? Before anything else, the million-dollar questions must be asked: how many users will read that rich and no-nonsense content that you have? How many customers will be able to see the products that you are trying to sell? How many clients will become aware of the services that you will offer? Search engine optimization is mostly about these questions. In fact it is mostly about trying to give the positive answers to these questions - many readers, many customers, and many clients. Where do website users come from? In the early phases of a simple personal web site they usually come from the owner’s circle of family and acquaintances that are aware of your brand new URL. Although this may be enough for some personal web sites surely it will take a lot more hits than what those acquaintances would provide when a website is aiming for a larger and more geographically-unconstrained audience. After all, that is one thing that the Internet is all about – breaking geographical constraints. And for this kind of web site traffic need, there is but two words that answers that question of where your users will come from: search engines. While there were search engines that existed before Google came to the scene, Google brought to the table a completely new way of searching information. The algorithm that Google used, relying heavily on links, (among many other important factors) proved to be very effective that it left other search engines in the dust. This revolution in search that gave relevant search results became so successful that it shaped the users’ habits in finding information on the Internet. Users stopped memorizing web site URLs, and started depending on the power of the search engine to give them back the relevant URLs for the information that they need. And though search engines can give you search results that spanned multiple pages, recent studies have shown that a few percentage of the users even bothered to go beyond the first page. So that answers the why and how questions that we raised earlier about the importance of search engine listings to web site owners. As far as web design is concerned, everything that is mentioned above also points to one thing – that a good web design is just half the battle. Search engine optimization brings a whole new kind of a game to the table. There is no definitive answer to the question: how will I make my web site rank well in Google (or Yahoo, or Alta Vista)? There are many factors that affect web site rankings, and the exact formula for this ranking algorithm is considered as a search engine company’s secret sauce that sets it apart from its competitors, and more importantly, this secrecy also serves as a protective wall that tries to prevent the contamination of search results with irrelevant contents and spam pages. But this doesn’t mean that they leave web site designers and owners in the dark. Search engine companies do help web designers and search engine optimization professionals in making pages that are more search-engine friendly. Online communities also exist that help others in their search engine optimization problems. Search engine optimization is an established and growing industry of professionals who offer services for this specific purpose. But though people who specialize on this kind of optimization exist, it is also important that web designers understand the underlying concepts of search engine optimization. Though optimization techniques can be applied to the web site design towards or at the end of the project, having a good knowledge of the factors that improve a web sites’ search engine ranking saves the designer from cumbersome changes that might have to be done later if optimization is set aside. Having search engine optimization considerations as you design your web sites also focuses your design for a more definitive purpose. In the end knowing more about search engine optimization as a web designer is a big advantage for a more efficient web design resulting to a website that will be noticed and read by visitors all over the world.
Thursday, September 8, 2016
Eight tips to create a search engine friendly website
: Every website needs traffic. It is not possible for a website to continue for long period without attracting enough traffic. The basic aim behind search engine optimization (SEO) is to give enough popularity to the websites and thereby to attract required traffic. Every webmaster wants his site to be search engine friendly, at the same time attractive to the human eyes too. If a website is ranked at the top positions in the search engine ranking the possibility of attracting visitors is more when compared with that of websites having lower rankings. So the basic thing is to create websites that are search engine friendly. Creating a search engine friendly website is not a daunting task, but it has to take some efforts. This article gives an insight on the points that have to be remembered for creating a search engine friendly website. Tip #1: Proper selection of domain name and layout The domain name of your is of great significance. Search bots give special importance to the site name besides that the visitors can also get a rough idea of what they can expect when they look at the domain name. The layout of the site also has to be done with great care. The site should have a perfect linking structure and can have all the main links directly from the homepage. Tip #2: Creating a directory structure All sites except small ones will have a directory structure. You have to plan a directory structure before building the site at the same time bear in mind that the directories that lie too deep are very difficult to scan. Proper care should be taken for naming of directories; it should be named on the basis of the content. Tip #3 Remove frames Search bots find it difficult to search the sites that use frames. So it is always good not to use frames. In case your website use frames be sure to make use of no frames tags so that the search bots can crawl the sites and get requited information easily. This will definitely help in improving the ranking. Tip #4: Make use of external CSS style sheets Making use of external style sheets is considered as a great idea because it reduces the overall complexity of the site. This ensures efficient crawling by search engines. So make sure to include CSS files in your site. If possible making use of CSS tables would be a better idea than traditional tables. Tip #5: Forming and naming of files The names of the file can be based on title tags which is normally the most important keyword. This also helps in better search engine position of those keywords. Tip #6: Hosting of the site Selecting a hosting provider who offers 99% uptime guarantee ensures that your site will be reachable to spiders all times. Also make sure that you’re your web hosting server supports the ‘If-Modified-Since-HTTP header’. Tip #7: Proper balancing of graphics and content The search bots can see only plain HTML code. So it is very important to reduce using too much graphics on your site. So always try to maintain a proper balance between graphics and content. Tip #8: Keep a view on content and links Do not keep too much links on a single page. It is always better to limit the number of links on a single page to fifty. It is advisable to keep the content on a single page between 200 to 1500 words. It’s possible for you to make your site search engine friendly by remembering the above mentioned search engine optimization points. Author Descrpition Seoedge is a site that provides cutting edge information on search engine marketing. This site provides a medium to get reliable SEO related news, white papers, reviews, tools etc
Thursday, September 1, 2016
Search engine scoring system
: Search Engine Scoring System Brought to you by: Nerd Lib Software Labs This article covers TITLE TAGS, MAIN BODY CONTENT, and META TAGS (which is what you see below). Search engines give more importance to some items in their ranking algorithms. Following is a list of what items are given the most importance to items that have the least importance, in search engine rankings. TITLE . 2.0 LINK POPULARITY . 2.0 THE MAIN BODY TEXT . 1.5 DOMAIN NAME . 1.0 KEYWORD PROMINENCE . 1.0 HEADING TAGS . 0.5 PROXIMITY OF KEYWORDS . 0.5 BOLD or ITALIC . 0.4 FOLDER or FILENAME . 0.3 META DESCRIPTION . 0.3 ALT TAG . 0.2 TITLE ATTRIBUTE . 0.2 META KEYWORDS . 0.1 TOTAL HIGHEST SCORE POSSIBLE = 10 TITLE TAG . 2.0/10 The title tag is an important part of a website. It is basically a short description of the page, and the most important words should go first. Every HTML (web page) should have a title tags and all tags should be unique. It is recommended that you do not use the same tags for multiple documents. Some tips to keep in mind when creating title tags are: * It should always appear immediately after the opening
tag * It should be specific keywords and phrases * If you use the same keyword twice, do not use it right next to each other. (eg.