Query difficulty estimation for image retrieval.
A good example was OpenText,which was reported to be selling companies the right to be listed at thetop of the search results for particular queries .
Sigma: An integrated development environment for formal ontology.
Search engines do not want to index multiple versions of similar content. For example, printer friendly pages may be search engine unfriendly duplicates. Also, many automated content generation techniques rely on recycling content, so some search engines are somewhat strict in filtering out content they deem to be similar or nearly duplicate in nature.
A search engine can determine if a particular search query is navigational () versus informational or transactional by analyzing the relative CTR of different listings on the search result page & the CTR of people who have repeatedly searched for a particular keyword term. A navigational search tends to have many clicks on the top organic listing, while the CTR curve is often far flatter on informational or transactional searches.
Feature Analysis for Object and Scene Categorization.
Some search engines may also try to classify sites to understand what type of sites they are, as in news sites or reference sites that do not need updated that often. They may also look at individual pages and try to classify them based on how frequently they change.
This is the technique the URLresolveruses to turn URLs into docIDs.
and others Combinaison d'information visuelle, conceptuelle, et contextuelle pour la construction automatique de hiérarchies sémantiques adaptées à l'annotation d'images.
Social negative bootstrapping for visual categorization.
If the element contains no col elements, then the element may have a content attribute specified, whose value must be a valid non-negative integer greater than zero.
Query expansion by spatial co-occurrence for image retrieval.
Most blogs tend to be personal in nature. Blogs are generally quite authoritative with heavy link equity because they give people a reason to frequently come back to their site, read their content, and link to whatever they think is interesting.
A good meta description tag should:
Each and every page of your website can have custom meta-tags and should be optimized individually if possible. You can tweak your meta-tags to try to get the best result and rankings, but the changes may take from weeks to months to show positive results in Google so you have to have patience for the results. If your website is updated frequently with new content, it’s like the search engines are returning frequently, so the updates to the meta-tags and on-page content could yield improvements quicker than a less frequently updated website.
The code for a meta description tag looks like this
The robots and revisit-after tag talks directly to the search engine spiders that crawl your site. You want to use these tags to clearly indicate to them that they should index your entire website, and come back roughly once a month to rescan and index your content. But if you update your site or blog frequently the search engines will come back more frequently, so that should be the goal.