R&D and Products in the area of Information Extraction & Retrieval Quester: Natural based Information Extraction and Language Processing Retrieval System

In order to improve search result precision through semantic search, C-DAC has put its efforts in developing the Quester technology, a NLP based Information Retrieval System capable of retrieving information based on a combination of keyword and conceptual matching which uses domain defined Ontology. It is a knowledge based Information Retrieval (IR) system with the following features:

  • NLP based Query Processing using
    1. Syntactic Parsing
    2. Semantic Roles using Semantic Representations
    3. Semantic-net and Knowledge-net for establishing information relation
    4. Anaphora Resolution/ Co-referencing to link the pertinent portions of discourse with references for meaning coherence.
  • Text Processing & Tagging based on
    1. Syntactic Parsing
    2. Semantic Role Labeling
    3. Named Entity Recognition
    4. Anaphora Resolution /Co-referencing
  • Retrieval of query results through NLP based Retrieval Engine
    1. Ranking/Sorting of retrieved results according to semantic relevancy in accordance to query
    2. Churning out sentential level or paragraph level retrieval of information


Contact Us

Centre for Development of Advanced Computing
Applied AI Group, 4th Floor,
C-DAC Innovation Park,
Panchavati, Pashan,
Pune - 411 008.
Phone No.: (020) 25503314 / 15