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Keyword Stuffing
Spamdexing (also known as search engine spam, search engine poisoning, black-hat search engine optimization, search spam or web spam) is the deliberate manipulation of search engine indexes. It involves a number of methods, such as link building and repeating related or unrelated phrases, to manipulate the relevance or prominence of resources indexed in a manner inconsistent with the purpose of the indexing system."Word Spy - spamdexing" (definition), March 2003, webpagWordSpy-spamdexing. Spamdexing could be considered to be a part of search engine optimization, although there are many SEO methods that improve the quality and appearance of the content of web sites and serve content useful to many users. Overview Search engines use a variety of algorithms to determine relevancy ranking. Some of these include determining whether the search term appears in the body text or URL of a web page. Many search engines check for instances of spamdexing and will remove suspect pages from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Hat Hacker
A black hat (black hat hacker or blackhat) is a computer hacker who violates laws or ethical standards for nefarious purposes, such as cybercrime, cyberwarfare, or malice. These acts can range from piracy to identity theft. A black hat is often referred to as a "cracker". The term originates from 1950s westerns, with "bad guys" (criminals) typically depicted as having worn black hats and "good guys" (heroes) wearing white ones. In the same way, black hat hacking is contrasted with the more ethical white hat approach to hacking. Additionally, there exists a third category, called grey hat hacking, characterized by individuals who hack, usually with good intentions but by illegal means. Description Criminals who intentionally enter computer networks with malicious intent are known as "black hat hackers". They may distribute malware that steals data (particularly login credentials), financial information, or personal information (such as passwords or credit card numbers). This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Hat (computer Security)
A white hat (or a white-hat hacker, a whitehat) is an ethical security hacker. Ethical hacking is a term meant to imply a broader category than just penetration testing. Under the owner's consent, white-hat hackers aim to identify any vulnerabilities or security issues the current system has. The white hat is contrasted with the black hat, a malicious hacker; this definitional dichotomy comes from Western films, where heroic and antagonistic cowboys might traditionally wear a white and a black hat, respectively. There is a third kind of hacker known as a grey hat who hacks with good intentions but at times without permission. White-hat hackers may also work in teams called " sneakers and/or hacker clubs", red teams, or tiger teams. History One of the first instances of an ethical hack being used was a "security evaluation" conducted by the United States Air Force, in which the Multics operating systems were tested for "potential use as a two-level (secret/top secret) system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bing (search Engine)
Microsoft Bing (also known simply as Bing) is a search engine owned and operated by Microsoft. The service traces its roots back to Microsoft's earlier search engines, including MSN Search, Windows Live Search, and Live Search. Bing offers a broad spectrum of search services, encompassing web, Bing Videos, video, image, and Bing Maps, map search products, all developed using ASP.NET. The transition from Live Search to Bing was announced by Microsoft CEO Steve Ballmer on May 28, 2009, at the ''All Things Digital'' conference in San Diego, California. The official release followed on June 3, 2009. Bing introduced several notable features at its inception, such as search suggestions during query input and a list of related searches, known as the 'Explore pane'. These features leveraged semantic technology from Powerset (company), Powerset, a company Microsoft acquired in 2008. Microsoft also struck a deal with Yahoo! that led to Bing powering Yahoo! Search. Microsoft made signif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google Hummingbird
Hummingbird is the codename given to a significant algorithm change in Google Search in 2013. Its name was derived from the speed and accuracy of the hummingbird. The change was announced on September 26, 2013, having already been in use for a month. "Hummingbird" places greater emphasis on natural language queries, considering context and meaning over individual keywords. It also looks deeper at content on individual pages of a website, with improved ability to lead users directly to the most appropriate page rather than just a website's homepage. The upgrade marked the most significant change to Google search in years, with more "human" search interactions and a much heavier focus on conversation and meaning. Thus, web developers and writers were encouraged to optimize their sites with natural writing rather than forced keywords, and make effective use of technical web development for on-site navigation. History Google announced "Hummingbird", a new search algorithm, at a S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Search Engine
A search engine is a software system that provides hyperlinks to web pages, and other relevant information on World Wide Web, the Web in response to a user's web query, query. The user enters a query in a web browser or a mobile app, and the search engine results page, search results are typically presented as a list of hyperlinks accompanied by textual summaries and images. Users also have the option of limiting a search to specific types of results, such as images, videos, or news. For a search provider, its software engine, engine is part of a distributed computing system that can encompass many data centers throughout the world. The speed and accuracy of an engine's response to a query are based on a complex system of Search engine indexing, indexing that is continuously updated by automated web crawlers. This can include data mining the Computer file, files and databases stored on web servers, although some content is deep web, not accessible to crawlers. There have been ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meta Element
Meta most commonly refers to: * Meta (prefix), a common affix and word in English ( in Greek) * Meta Platforms, an American multinational technology conglomerate (formerly ''Facebook, Inc.'') Meta or META may also refer to: Businesses * Meta (academic company), performing analysis of scientific literature (2009–2022) * Meta (augmented reality company), a maker of digital eyewear (2013–2019) * Meta Linhas Aéreas, a Brazilian airline (1991–2011; formerly ''META'') * MetaBank, an American bank (founded 1954; now ''Pathward'') Computing * Meta element (<meta … >), an (X)HTML element providing a webpage's structured metadata * Metadata, data about data * META II, a compiler-writing language * Meta key, a modifier key on 1970s/80s workstation keyboards * FF Meta, a typeface * Metasequoia (software), a 3D computer graphics package * Metaverse, proposed networks of 3D virtual worlds for social connection * Imagination META, a microprocessor * Meta-Wiki, a Wik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Word
A word is a basic element of language that carries semantics, meaning, can be used on its own, and is uninterruptible. Despite the fact that language speakers often have an intuitive grasp of what a word is, there is no consensus among linguistics, linguists on its definition and numerous attempts to find specific criteria of the concept remain controversial. Different standards have been proposed, depending on the theoretical background and descriptive context; these do not converge on a single definition. Some specific definitions of the term "word" are employed to convey its different meanings at different levels of description, for example based on phonology, phonological, grammar, grammatical or orthography, orthographic basis. Others suggest that the concept is simply a convention used in everyday situations. The concept of "word" is distinguished from that of a morpheme, which is the smallest unit of language that has a meaning, even if it cannot stand on its own. Words a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Website
A website (also written as a web site) is any web page whose content is identified by a common domain name and is published on at least one web server. Websites are typically dedicated to a particular topic or purpose, such as news, education, commerce, entertainment, or social media. Hyperlinking between web pages guides the navigation of the site, which often starts with a home page. The most-visited sites are Google, YouTube, and Facebook. All publicly-accessible websites collectively constitute the World Wide Web. There are also private websites that can only be accessed on a private network, such as a company's internal website for its employees. Users can access websites on a range of devices, including desktops, laptops, tablets, and smartphones. The app used on these devices is called a web browser. Background The World Wide Web (WWW) was created in 1989 by the British CERN computer scientist Tim Berners-Lee. On 30 April 1993, CERN announced that the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anchor Text
The anchor text, link label, or link text is the visible, clickable text in an HTML hyperlink. The term "anchor" was used in older versions of the HTML specification for what is currently referred to as the " a element", or . The HTML specification does not have a specific term for anchor text, but refers to it as "text that the a element wraps around". In XML terms (since HTML is XML), the anchor text is the content of the element, provided that the content is text. Usually, web search engines analyze anchor text from hyperlinks on web pages. The words contained in the anchor text can determine the ranking that the page will receive from search engines. Other services apply the basic principles of anchor text analysis as well. For instance, academic search engines may use citation context to classify academic articles, and anchor text from documents linked in mind maps may be used too. Overview Anchor text usually gives the user relevant descriptive or contextual information ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backlink
From the point of view of a given web resource (referent), a backlink is a regular hyperlink on another web resource (the referrer) that points to the referent. A ''web resource'' may be (for example) a website, web page, or web directory. A backlink is a reference comparable to a citation. The quantity, quality, and relevance of backlinks for a web page are among the factors that search engines like Google evaluate in order to estimate how important the page is. PageRank calculates the score for each web page based on how all the web pages are connected among themselves, and is one of the variables that Google Search uses to determine how high a web page should go in Search engine results page, search results. This weighting of backlinks is analogous to citation analysis of books, scholarly papers, and academic journals. A Topical PageRank has been researched and implemented as well, which gives more weight to backlinks coming from the page of a same topic as a target page. Som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meta Tag
Meta most commonly refers to: * Meta (prefix), a common affix and word in English ( in Greek) * Meta Platforms, an American multinational technology conglomerate (formerly ''Facebook, Inc.'') Meta or META may also refer to: Businesses * Meta (academic company), performing analysis of scientific literature (2009–2022) * Meta (augmented reality company), a maker of digital eyewear (2013–2019) * Meta Linhas Aéreas, a Brazilian airline (1991–2011; formerly ''META'') * MetaBank, an American bank (founded 1954; now ''Pathward'') Computing * Meta element (<meta … >), an (X)HTML element providing a webpage's structured metadata * Metadata, data about data * META II, a compiler-writing language * Meta key, a modifier key on 1970s/80s workstation keyboards * FF Meta, a typeface * Metasequoia (software), a 3D computer graphics package * Metaverse, proposed networks of 3D virtual worlds for social connection * Imagination META, a microprocessor * Meta-Wiki, a Wikimedia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vector Space Model
Vector space model or term vector model is an algebraic model for representing text documents (or more generally, items) as vector space, vectors such that the distance between vectors represents the relevance between the documents. It is used in information filtering, information retrieval, index (search engine), indexing and relevancy rankings. Its first use was in the SMART Information Retrieval System. Definitions In this section we consider a particular vector space model based on the Bag-of-words model, bag-of-words representation. Documents and queries are represented as vectors. :d_j = ( w_ ,w_ , \dotsc ,w_ ) :q = ( w_ ,w_ , \dotsc ,w_ ) Each Dimension (vector space), dimension corresponds to a separate term. If a term occurs in the document, its value in the vector is non-zero. Several different ways of computing these values, also known as (term) weights, have been developed. One of the best known schemes is tf-idf weighting (see the example below). The definition of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
