MaltParser - Installation
Description: MaltParser is a system for data-driven dependency parsing. This web page explains how to install or build the MaltParser system.
Keywords: MaltParser, dependency parsing, Nivre, NLP, CoNLL, treebank, machine learning, data-driven, parsing

# MaltParser

Modified: July 15 2010

- Home

##### Get MaltParser

- Download
- Changes
- License

##### Documentation

- Introduction
- Installing MaltParser
- User guide
- Options (short version)
- Options (long version)
- JavaDoc

##### Resources

- Pre-trained models
- Plugin
- Publications
- CoNLL Shared Task

##### Contact

- Contact

## Installing MaltParser

The latest version of MaltParser is available from the MaltParser download page.

Unpack the MaltParser distribution malt-1.4.1.zip or malt-1.4.1.tar.gz by running one of the following commands:

### Alternative 1

    prompt> tar -zxvf malt-1.4.1.tar.gz

### Alternative 2

    prompt> gunzip malt-1.4.1.tar.gz
    prompt> tar -xvf malt-1.4.1.tar

### Alternative 3

    prompt> unzip malt-1.4.1.zip

## Distribution

The distribution of MaltParser contains the following files and directories:

LICENSE | License information
NOTICE | Acknowledgement
README | Readme file
appdata | Application data
build.properties | Build properties
build.xml | Ant build script
docs | User guide and MaltParser source documentation
examples | Examples of treebank data, option files, feature specification files and examples that shows how to use MaltParser from other applications
lib | Jar-files used by MaltParser
malt.jar | MaltParser executable jar-file
src | Java source of MaltParser

## Testing your installation

After installing MaltParser, you can run it to verify that it is working properly on your system. To be able to run MaltParser you need Java Runtime Environment (JRE). You need version JRE 1.5 (Java 5) or later version. If you dont have JRE installed on your system, download and install the latest version of Java Runtime Environment.

To run MaltParser type the following at the command line prompt (it is important that you are in the malt-1.4.1 directory):

    prompt> java -jar malt.jar

If MaltParser displays something like the message below, the distribution has been installed successfully.

    -----------------------------------------------------------------------------
                              MaltParser 1.4.1
    -----------------------------------------------------------------------------
             MALT (Models and Algorithms for Language Technology) Group
                 Vaxjo University and Uppsala University
                                 Sweden
    -----------------------------------------------------------------------------

    Usage:
       java -jar malt.jar -f <path to option file> <options>
       java -jar malt.jar -h for more help and options

    help                  (  -h) : Show options
    -----------------------------------------------------------------------------
    option_file           (  -f) : Path to option file
    -----------------------------------------------------------------------------
    verbosity            *(  -v) : Verbosity level
      debug      - Logging of debugging messages
      error      - Logging of error events
      fatal      - Logging of very severe error events
      info       - Logging of informational messages
      off        - Logging turned off
      warn       - Logging of harmful situations
    -----------------------------------------------------------------------------

    Documentation: docs/index.html

## Building MaltParser

MaltParser is distributed both in binary form and with all source code and documentation. If you only want to use MaltParser as a parser you only need to install the distribution (follow the installation guidelines above), but if you need to build the system you should follow these guidelines. To be able to build MaltParser you need Java SE Development Kit (JDK) 6 and Apache Ant 1.7.0. If you dont have these tools please download and install them by following the instructions on their web sites.

To build the MaltParser distribution:

    prompt> cd <path to malt-1.4.1 directory>
    prompt> ant dist

<path to malt-1.4.1 directory> should be replaced by the actual path to the directory where malt-1.4.1 is installed.