cloaking


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cloaking

(1) Concealing. Hiding.

(2) Stopping a Wi-Fi access point from continuously announcing its presence. See SSID broadcast.

(3) Coding in a Web page that is hidden to humans but visibile to search engine spiders in order to achieve high rankings in search results. For example, pages that repeat the same topic word several times tend to rank high, but excessive repetition of a word makes the writing seem amateurish. JavaScript and AJAX code may be used to hide the additional words when they detect a human but allow them to appear for a search engine. An earlier simple method was to display white text on a white background.

Aggressive marketers generate thousands of cloaked pages ("phantom pages") highly tuned for the search engines (see shadow domain).

IP Delivery
Called "IP delivery," an advanced form of cloaking redirects Web queries based on their IP address. For example, an email harvesting program that queries the site to find people to spam should not be directed to the people page or to the cloaked spider page but to a special page without email addresses and links. See shadow domain, search engine optimization, spider and Web spam.
References in periodicals archive ?
Previous cloaking devices have been able to hide objects from sound waves.
The device--created by a team at the National Institute of Scientific Research (INRS) in Montreal and described in Optica--uses a new approach to invisibility cloaking in which the frequency of light passing through an object is manipulated.
A detailed bibliographic review is beyond the scope of this paper; however it is worth mentioning some attempts to address the aeroacoustic cloaking problem, that is, in the presence of flow or motion of scatterers and sources, which can be found in literature.
The cloaking 'skin' boasts microscopic light-scattering antennae that make light bouncing off an object look as if it were reflected by a flat mirror, rendering the object invisible.
In the case of cloaking, a metamaterial surrounding the target can be used to force light bypass a region of space, effectively isolating it from incoming electromagnetic waves.
Unlike other cloaking devices in the past, Rochester's invisibility cloak is fashioned out of good old lenses - four of them, to be precise.
The key point of cloaking techniques is to use materials with specific constitutive parameters and refractive index.
In this paper, we present such two nonexposure accurate location cloaking algorithms.
Currently most of cloaking regions are represented as rectangles, marked as the coordinate of left-bottom corner and top-right corner.
Seven years ago, scientists at the Center for Metamaterials and Integrated Plasmonics at Duke University created a cloaking device.