Cocomel - A search engine

coconut + caramel

Cocomel is an anytime search engine used for research at the University of Otago.

This puts it in the same family as ATIRE, IOQP, JASS, and JASSv2.

Features

• Searches

TODO

• Lots of stuff

Compiling

You'll need to install Zig 0.16.0 then run zig build -Doptimize=ReleaseFast. Other versions of Zig may work but remain untested.

Usage

Cocomel can index from either a trec format <DOC><DOCNO>DOC_001</DOCNO></DOC> file or a folder of html files. Conversion from ciff is supported using the convert tool. The indexer, search etc. can be found in ./zig-out/bin/ with usage described by the --help flag. There is also a daemon cocomel and example client. Indexing is a batch job and the daemon will need to be restarted to use a new index however this only takes a few seconds as the index is simply read not decompressed.

Tuning

See src/config.zig.

Acknowledgments

• Andrew Trotman for teaching me most of what I know about search engines
• Katelyn Harlan for her insights into search engine performance