Posteado por: dollyhaze | abril 16, 2008

Q2:Natural Language

Natural language is only one medium for human-machine interaction, but has several obvious and desirable properties:

  1. It provides an immediate vocabulary for talking about the contents of the computer.
  2. It provides a means of accessing information in the computer independently of its structure and encodings.
  3. It shields the user from the formal access language of the underlying system.
  4. It is available with a minimum of training.

Natural Language Processing (NLP) is both a modern computational technology and a method of investigating and evaluating claims about human language itself.

Natural Language Processing (NLP) is the use of computers to process written and spoken language for some practical, useful, purpose: to translate languages, to get information from the web on text data banks so as to answer questions, to carry on conversations with machines, so as to get advice about, say, pensions and so on. These are only examples of major types of NLP, and there is also a huge range of lesser but interesting applications, e.g. getting a computer to decide if one newspaper story has been rewritten from another or not. NLP is not simply applications but the core technical methods and theories that the major tasks above divide up into, such as Machine Learning techniques, which is automating the construction and adaptation of machine dictionaries, modeling human agents’ beliefs and desires etc. This last is closer to Artificial Intelligence, and is an essential component of NLP if computers are to engage in realistic conversations: they must, like us, have an internal model of the humans they converse with.

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