IRSTLM

IRSTLM is a free and open source exact statistical language model using memory-mapping. The language models are compatible with those created with the closed-source SRILM Tooolkit.

See the homepage at https://hlt-mt.fbk.eu/technologies/irstlm

Installation

see https://github.com/irstlm-team/irstlm or

svn checkout svn://svn.code.sf.net/p/irstlm/code/trunk irstlm
cd irstlm
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/path/prefix
make -j4
make install

if you get stdlib.h error, see https://github.com/irstlm-team/irstlm/issues/22

Make a language model

# if you specified /path/prefix previously
export IRSTLM=/path/prefix
# else
export IRSTLM=/usr/local

$IRSTLM/bin/build-lm.sh -i incorpus.txt -o out.lm.gz -t tmp/

See also

• Moses (includes alternative LM system KenLM)
• Using GIZA++
• RandLM - a randomised LM, based on Bloom Filters