Castor/anserini_dependency/README.md

Retrieve Sentences

1. Clone Anserini and Castor

git clone https://github.com/castorini/Anserini.git
git clone https://github.com/castorini/Castor.git

Your directory structure should look like

├── Anserini
└── Castor

2. Compile Anserini

cd Anserini
mvn package

This creates anserini-0.0.1-SNAPSHOT.jar at Anserini/target

3. Download Dependencies

• Download the TrecQA lucene index
• Download the Google word2vec file from here

4. Run the following command

python ./anserini_dependency/RetrieveSentences.py

Possible parameters are:

option	input format	default	description
-index	string	N/A	Path of the Lucene index
-embeddings	string	""	Path of the word2vec index
-topics	string	""	topics file
-query	string	""	a single query
-hits	[1, inf)	100	max number of hits to return
-scorer	string	Idf	passage scores (Idf or Wmd)
-k	[1, inf)	1	top-k passages to be retrieved

Note: Either a query or a topic must be passed in as an argument; they can't be both empty.