BUILDING BULGARIAN NooJ RESOURCES

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BUILDING BULGARIAN NooJ RESOURCES

• SVETLA KOEVA
• SVETLOZARA LESEVA
• BORISLAV RIZOV

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BUILDING BULGARIAN NooJ RESOURCES

• The project Automatic information extraction
  based on semantic relations (RILA a bilateral
  co-operation programme)
• Objectives
• Reliable (exhaustive and precise) multilingual
  lexical resources for a variety of purposes such
  as machine translation, information extraction
  and information retrieval, etc.

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BUILDING BULGARIAN NooJ RESOURCES

• Prerequisites for carrying out such task
• Large-coverage linguistic resources such as
  comprehensive multilingual and monolingual
  dictionaries (designed according to certain
  criteria and stored in a format such as would
  ensure accessibility and manageability).
• Ancillary (esp. disambiguation and recognition)
  resources.
• An appropriate system for the storage and
  management of multilingual linguistic data, as
  well as the implementation of task-related
  procedures.

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BUILDING BULGARIAN NooJ RESOURCES

• Methodology
• Systematization and unification of the existing
  INTEX resources as well as their conversion in
  compatibility with the established NooJ format.
• Expansion and enhancement of the resources aiming
  at ever higher precision and recall parameters.
• Creation of various new resources using the
  experience, resources and tools developed along
  the first two lines.

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BUILDING BULGARIAN NooJ RESOURCES

• Conversion of the lexical resources in DELA
  format to the .nod format
• Conversion of the BGD (Bulgarian Grammar
  Dictionary)1 automata underlying the DELAF
  dictionaries to the .flx automata description.
• Creation of automata for the existing
  dictionaries of compounds since they have been
  stored in DELACF format.

Koeva, S. Grammar Dictionary of Bulgarian.
Description of the concept of organization of the
linguistic data. Bulgarian Language 6, pp. 49-58
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BUILDING BULGARIAN NooJ RESOURCES

• Conversion of the INTEX graphs into the NooJ
  format
• Preprocessing graphs
• Compound conjunctions graphs.
• Abbreviations and elision graphs (with possible
  treatment in a dictionary), etc.
• Recognition graphs developed along tasks
  involving automatic treatment of syntactic
  phenomena.

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BUILDING BULGARIAN NooJ RESOURCES

• Expanding the compound words dictionaries with
  new entries in a systematic way (covering large
  and diverse areas of the lexicons inventory of
  compounds).
• Establishing the resources to be used
• The available specialised on-line dictionaries
• The lexical-semantic data base - the Bulgarian
  WordNet.
• Developing automata for the inflection types in
  the established format.

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BUILDING BULGARIAN NooJ RESOURCES

• Specifics
• Restricted paradigms for certain types of
  compounds (esp. domain-specific terms) pluralia
  tantum, singularia tantum, count forms, plural
  endings.
• Invariable forms or forms that are not
  established in the Bulgarian language, esp. ones
  introduced in the language as transcription of
  mainly English terms, etc. (hedge, swap, bear
  market, bull market, etc.)

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BUILDING BULGARIAN NooJ RESOURCES

• Compounds extraction from the above mentioned
  resources (enhanced complementarily)
• Extraction of thematic compound dictionaries of
  terms, named entities, other compound lexemes
  (using semantic relations encoded in the data
  base and employing inheritance to the task).
• Employing NooJ as environment for compounds
  extraction, processing of the obtained material
  with the already designed dictionaries and
  encoding of the appropriate candidates among the
  unrecognized tokens.

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BUILDING BULGARIAN NooJ RESOURCES
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BUILDING BULGARIAN NooJ RESOURCES

• Dictionaries generation enhancement
• Exploring large data bases and spotting different
  head words inflection types using the existing
  automata
• Using chiefly Bulgarian WordNet where head words
  of compounds are marked unambiguously.
• Using simple syntactic grammars (identifying NPs)
  to spot head words in the available domain
  specific dictionaries of concepts and terms (more
  comprehensive with regard to the coverage of
  types of inflection).

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BUILDING BULGARIAN NooJ RESOURCES
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BUILDING BULGARIAN NooJ RESOURCES

• Recognition enhancement
• Development of morphological grammars embracing
  certain classes of words not present currently in
  any dictionary, provided the source words are in
  the dictionary
• Personal feminine nouns ??????? (friend) -
  ????????? (girl friend)
• Diminutive nouns ??????? (a small child),
  ??????? (a small dog), etc.
• Verbal nouns, etc.

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BUILDING BULGARIAN NooJ RESOURCES
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BUILDING BULGARIAN NooJ RESOURCES

• Present day and future directions
• Information retrieval, machine translation, etc.
• Facilitating linguistic tasks by supplying the
  prerequisites - large resources as input data
  for the exploration of linguistic phenomena,
  validation of linguistic hypotheses on language
  material.
• Education (facilitating the acquisition of
  knowledge and skills in NLP)