This project provides an importer to support the GrAF format (see http://www.americannationalcorpus.org/graf-wiki) for the linguistic converter framework Pepper (see https://u.hu-berlin.de/saltnpepper). A detailed description of that mapping can be found in section GrAFImporter.
Pepper is a pluggable framework to convert a variety of linguistic formats (like TigerXML, the EXMARaLDA format, PAULA etc.) into each other. Furthermore Pepper uses Salt (see https://github.com/korpling/salt), the graph-based meta model for linguistic data, which acts as an intermediate model to reduce the number of mappings to be implemented. That means converting data from a format A to format B consists of two steps. First the data is mapped from format A to Salt and second from Salt to format B. This detour reduces the number of Pepper modules from n2-n (in the case of a direct mapping) to 2n to handle a number of n formats.
In Pepper there are three different types of modules:
- importers (to map a format A to a Salt model)
- manipulators (to map a Salt model to a Salt model, e.g. to add additional annotations, to rename things to merge data etc.)
- exporters (to map a Salt model to a format B).
For a simple Pepper workflow you need at least one importer and one exporter.
Since the here provided module is a plugin for Pepper, you need an instance of the Pepper framework. If you do not already have a running Pepper instance, click on the link below and download the latest stable version (not a SNAPSHOT):
Note: Pepper is a Java based program, therefore you need to have at least Java 7 (JRE or JDK) on your system. You can download Java from https://www.oracle.com/java/index.html or http://openjdk.java.net/ .
If this Pepper module is not yet contained in your Pepper distribution, you can easily install it. Just open a command line and enter one of the following program calls:
Then type in command is and the path from where to install the module:
pepper> update de.hu_berlin.german.korpling.saltnpepper::pepperModules-pepperModules-GrAFModules::https://korpling.german.hu-berlin.de/maven2/
To use this module in your Pepper workflow, put the following lines into the workflow description file. Note the fixed order of xml elements in the workflow description file: <importer/>, <manipulator/>, <exporter/>. The GrAFImporter is an importer module, which can be addressed by one of the following alternatives. A detailed description of the Pepper workflow can be found on the Pepper project site.
a) Identify the module by name
<importer name="GrAFImporter" path="PATH_TO_CORPUS"/>
b) Identify the module by formats
<importer formatName="xml" formatVersion="1.0" path="PATH_TO_CORPUS"/>
c) Use properties
<importer name="GrAFImporter" path="PATH_TO_CORPUS"> <property key="PROPERTY_NAME">PROPERTY_VALUE</property> </importer>
Since this Pepper module is under a free license, please feel free to fork it from github and improve the module. If you even think that others can benefit from your improvements, don't hesitate to make a pull request, so that your changes can be merged. If you have found any bugs, or have some feature request, please open an issue on github. If you need any help, please write an e-mail to firstname.lastname@example.org .
This project has been funded by the department of corpus linguistics and morphology of the Humboldt-Universität zu Berlin, Linguistics Department of the University of Potsdam and the Sonderforschungsbereich 632.
Copyright 2012 Humboldt-Universität zu Berlin, University of Potsdam.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
|Name of property||Type of property||optional/mandatory||default value|
This property determines the name for the syntax layer in the GrAF encoded corpus.
This property determines the name for the tokenization layer in the GrAF encoded corpus.
This property determines the name for the pos annotations in the GrAF encoded corpus.
This property determines ending of the header files.