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Poliqarp is an open source search engine designed to process text corpora, among others the National Corpus of Polish created at the Institute of Computer Science, Polish Academy of Sciences.


  • Custom query language
  • Two-level regular expressions:
    • operating at the level of characters in words
    • operating at the level of words in statements/paragraphs
  • Good performance
  • Compact corpus representation (compared to similar projects)
  • Portability across operating systems: Linux/BSD/Win32
  • Lack of portability across endianness (current release works only on little endian devices)

External links[edit]