Tiran Software

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Tiran Software

• -TURKUAZ Project-
• RadeX
• Tahir Bilal
• Onur Deniz
• Soner Kara
• M. Mert Karadagli

Assistant Umut Erogul Instructor
Meltem T. Yöndem
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Outline

• Problem Definition
• Important Aspects
• Our Approach
• General Structure
• Analyzer Component
• Searcher Component
• Current Status
• Prototype
• Tool and Resources
• Q/A

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Problem Definition

• Billions of radiology reports
• Unfortunately, they are stored in free-text
  format
• Hard to search and retrieve
• Need for searchable information

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Important Aspects

• Text Mining
• NLP
• Information Extraction
• Morphological Analysis
• Named Entity Recognition
• Machine Learning
• Neural Networks, Decision Trees ...

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Our Approach

• RadeX, Radiology Data Extractor will enable..
• Modular machine learning component
• Support for internal/external dictionary
  connection
• Template-based approach for finalizing

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General Structure
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General Structure (cont.)

• Analyzer Component
• Preprocess free text
• Look-up internal and external lexicons
• Gives semantic to words
• Extracts searchable data
• Searcher Component
• Send query strings to database
• Retrieve corresponding information

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Current Status

• Preprocessing.
• Connecting and using external sources.
• Database implementation.
• Applying SVM to unrelated but tagged corpus.

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Current Status (cont.)

• Mapping Turkish terms to English translations.
• Finding stem of unknown words.
• Constructing lexicons.
• Features of verbs, adjectives, nouns...

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In Prototype we will be able to...

• ..decompose reports into sub-parts, sentences and
  words,
• .. analyze words using Zemberek and a stemmer.
• .. give semantics to words via internal/external
  lexicons
• .. extract simple information using pre-defined
  templates

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Tools Resources

• SVM-Light
• WordNet
• JWNL
• TDK / Zargan
• Zemberek,
• PostgreSQL

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Any Questions?