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- Markovian_discrimination abstract "Markovian discrimination in spam filtering is a method used in CRM114 and other spam filters to model the statistical behaviors of spam and nonspam more accurately than in simple Bayesian methods. A simple Bayesian model of written text contains only the dictionary of legal words and their relative probabilities. A Markovian model adds the relative transition probabilities that given one word, predict what the next word will be. It is based on the theory of Markov chains by Andrey Markov, hence the name. In essence, a Bayesian filter works on single words alone, while a Markovian filter works on phrases or entire sentences.There are two types of Markov models; the visible Markov model, and the hidden Markov model or HMM.The difference is that with a visible Markov model, the current word is considered to contain the entire state of the language model, while a hidden Markov model hides the state and presumes only that the current word is probabilistically related to the actual internal state of the language.For example, in a visible Markov model the word \"the\" should predict with accuracy the following word, while ina hidden Markov model, the entire prior text implies the actual state and predicts the following words, but doesnot actually guarantee that state or prediction. Since the latter case is what's encountered in spam filtering,hidden Markov models are almost always used. In particular, because of storage limitations, the specific typeof hidden Markov model called a Markov random field is particularly applicable, usually with a clique size ofbetween four and six tokens.".
- Markovian_discrimination wikiPageID "3517732".
- Markovian_discrimination wikiPageLength "2295".
- Markovian_discrimination wikiPageOutDegree "11".
- Markovian_discrimination wikiPageRevisionID "544240988".
- Markovian_discrimination wikiPageWikiLink Andrey_Markov.
- Markovian_discrimination wikiPageWikiLink CRM114_(program).
- Markovian_discrimination wikiPageWikiLink Category:Markov_models.
- Markovian_discrimination wikiPageWikiLink Category:Spam_filtering.
- Markovian_discrimination wikiPageWikiLink Category:Statistical_natural_language_processing.
- Markovian_discrimination wikiPageWikiLink Hidden_Markov_model.
- Markovian_discrimination wikiPageWikiLink Markov_chain.
- Markovian_discrimination wikiPageWikiLink Markov_model.
- Markovian_discrimination wikiPageWikiLink Markov_random_field.
- Markovian_discrimination wikiPageWikiLink Maximum-entropy_Markov_model.
- Markovian_discrimination wikiPageWikiLink Naive_Bayes_spam_filtering.
- Markovian_discrimination wikiPageWikiLinkText "Markovian discrimination".
- Markovian_discrimination wikiPageUsesTemplate Template:Context.
- Markovian_discrimination wikiPageUsesTemplate Template:No_footnotes.
- Markovian_discrimination wikiPageUsesTemplate Template:Refimprove.
- Markovian_discrimination subject Category:Markov_models.
- Markovian_discrimination subject Category:Spam_filtering.
- Markovian_discrimination subject Category:Statistical_natural_language_processing.
- Markovian_discrimination hypernym Method.
- Markovian_discrimination type Model.
- Markovian_discrimination type Software.
- Markovian_discrimination type Field.
- Markovian_discrimination type Filter.
- Markovian_discrimination type Model.
- Markovian_discrimination type Page.
- Markovian_discrimination comment "Markovian discrimination in spam filtering is a method used in CRM114 and other spam filters to model the statistical behaviors of spam and nonspam more accurately than in simple Bayesian methods. A simple Bayesian model of written text contains only the dictionary of legal words and their relative probabilities. A Markovian model adds the relative transition probabilities that given one word, predict what the next word will be.".
- Markovian_discrimination label "Markovian discrimination".
- Markovian_discrimination sameAs Q1900905.
- Markovian_discrimination sameAs Markow-Filter.
- Markovian_discrimination sameAs m.09hytl.
- Markovian_discrimination sameAs Q1900905.
- Markovian_discrimination wasDerivedFrom Markovian_discrimination?oldid=544240988.
- Markovian_discrimination isPrimaryTopicOf Markovian_discrimination.