Architecture
YaCy search engine is based on four elements:
- Crawler
- A search robot which traverses from web page to web page and analyzes their content.
- Indexer
- Creates a Reverse Word Index (RWI) i.e. each word from the RWI has its list of relevant URLs and Ranking information. Words are saved in form of word hashes.
- Search and Administration interface
- Made as a web interface provided by a local HTTP servlet with servlet engine.
- Data Storage
- Used to store the Reverse Word Index Database utilizing a Distributed Hash Table.
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