IndexCollection builds the index from document records.
Possible parameters are:
-collection (required)
Collection Class: indicates what type of the document is, should be one of [Trec|Gov2|CW09|CW12]
-input (required)
Path of the directory that holds the raw documents
-index (required)
Path of the directory that holds the output index. The directory will be replaced if already exists
-threads (required)
Using how many threads to build the index
-positions (optional)
Boolean switch to index positions (default: false)
-docvectors (optional)
Boolean switch to store document vectors (default: false).
NOTICE: -positions MUST also be true in order to switch -docvectors to true
-optimize (optional)
Boolean switch to optimize index (force merge) (default: false)
-doclimit (optional)
Maximum number of documents to index (-1 to index everything). This is useful especially for testing purpose (default: -1)
-keepstopwords (optional)
Boolean switch to keep stopwords (default: false)