trigram probability

См. также в других словарях:

• n-gram — Not to be confused with engram. In the fields of computational linguistics and probability, an n gram is a contiguous sequence of n items from a given sequence of text or speech. The items in question can be phonemes, syllables, letters, words or …   Wikipedia

• N-gram — An n gram is a sub sequence of n items from a given sequence. n grams are used in various areas of statistical natural language processing and genetic sequence analysis. The items in question can be phonemes, syllables, letters, words or base… …   Wikipedia

• I Ching — For other uses, see I Ching (disambiguation). I Ching Classic of Changes   The …   Wikipedia

• Language model — A statistical language model assigns a probability to a sequence of m words P(w 1,ldots,w m) by means of a probability distribution.Language modeling is used in many natural language processing applications such as speech recognition, machine… …   Wikipedia

• Automatic summarization — is the creation of a shortened version of a text by a computer program. The product of this procedure still contains the most important points of the original text. The phenomenon of information overload has meant that access to coherent and… …   Wikipedia

• Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …   Wikipedia

• I Ching divination — Among the many forms of divination is a bibliomancy method using the I Ching (易經) or Book of Changes. The book is structured as 32 pairs of hexagrams, divided in half after the first 30. The text was a subject for civil service exams in Imperial… …   Wikipedia

• Perplexity — is a measurement in information theory. It is defined as 2 raised to the power of entropy, or more often as 2 raised to the power of cross entropy. The latter definition is commonly used to compare probability models empirically. Perplexity of a… …   Wikipedia

• Katz's back-off model — Katz back off is a generative n gram language model that estimates the conditional probability of a word given its history in the n gram. It accomplishes this estimation by backing off to models with smaller histories under certain conditions. By …   Wikipedia