JSSearch

Author: Eugene Yang

This is a course project of Information Retrieval in Georgetown University.

Environment

Fast and clean way to install nodeJS on Linux:

apt-get install nvm
nvm install node

Please install dependencies by npm using the following command under the project directory

npm install

In order to run container in a safe and clean way, please expose garbage collection function by adding argument --expose-gc when execute node.

Configurations are listed in config.json, including memory constraint and flush bunch settings.
Please assign -1 to memory_limit if do not want any memory constraint.
Default similarity parameter settings are listed in config.json.

For building index:

node build [trec-files-directory-path] [index-type] [output-dir]

Or for using default settings, you can execute build.bat on Windows or build.sh on Unix-like systems.

For executing query file:

node query_search [index-directory-path] [query-file-path] [retrieval-model] [index-type] [search-type] [optional: results-file]

Or use default directories:

node query_search -a [retrieval-model] [index-type] [search-type] [optional: results-file]

Apache License 2.0