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Natural Language Processing Projects

Natural Language Processing Projects. Heshaam Feili hfaili@mehr.sharif.edu. Persian Part-of-speech tagging. The large can can hold the water D A N AUX V D N Using N-gram probabilities Hidden Markov Model Transformation model [Church 1988], [Charniak97], [Adwait96].

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Natural Language Processing Projects

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  1. Natural Language ProcessingProjects Heshaam Feili hfaili@mehr.sharif.edu

  2. Persian Part-of-speech tagging • The large can can hold the water • D A N AUX V D N • Using N-gram probabilities • Hidden Markov Model • Transformation model • [Church 1988], [Charniak97], [Adwait96]

  3. POS Taggers

  4. Project: • Tagged persian data set • 1000 sentence • May need some hand crafted actions ! • Training method • Evaluation method • Needs some morphological smoothing • (2 person)

  5. (2) Computational Grammars Seminar • Unification grammar • Augmented transition network • Link grammar • Tree adjoining grammar • Categorical grammar • Dependency grammar • Head driven phrase structure grammar

  6. Projects: • Design & Implementation of Persian Computational grammar • Parsing Algorithm • Making a prototype ( 2 person ) • Full grammar development (MS project)

  7. (3) Statistical Parsing algorithms • Probabilistic model • Probabilistic Context free grammar • N-Gram model • Probabilistic Computational grammar • Needs bracketed data set • (S (NP ((DET the)(N man)) ( VP (V killed) (NP ( (D the)(N dog)) ) )

  8. Projects: • Bracketing Persian Data Set • Use at least 1000 tagged sentence • Bracket the data set • Implement an training model • Evaluation phase • PARSEVAL metrics • (2 Person)

  9. (4) Machine Translation • Architecture • Direct / Transfer / Interligua • History • Different Strategy • Problems • Current Status • (1 person)

  10. (5) Statistical MT • Probabilistic model • Training model • Architecture • Corpus Management • EGYPT model … • (2 person)

  11. Project: • English – Persian Statistical Translation system • Small data set exists … • Implement a statistical model • Needs • Persian morphological analyzer • Persian Pos tagger

  12. (6) Persian morphology analyzer • Inflection • Verb • Noun • Auxiliary • Adjective • Adverb … • Red House  خانهي قرمز • Projects (1 Person)

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