PISA
Performant indexes and search for large text collections
PISA is an open-source search engine library and toolkit focused on efficient indexing and query processing of large document collections. It is widely used for information retrieval research and high-performance text search.
Key features
- High-performance indexing
- Efficient query processing
- Research-grade retrieval
- Large collection support
Strengths
- Released under the Apache-2.0 license
- Active community (1.1k GitHub stars)
- Written in C++
PISA replaces
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