A simple CoNLL-X to tikz-dependency converter.

This converter aims to provide a function to visualize a simple dependency tree through converting from the CoNLL-X data format to the tikz-dependency.

Currently, I have implemented the converter in Python, C/C++ and Go. The functionality of these implementations is mostly same except that the C/C++ implementation does not provide command line options. The code is known to work on Linux and OS X.

Requirements depend on the type of implementations what you want to use:

• Go compilers if you want to use go code.
• C compiler if you want to use C compiled program.
• C/C++ compiler if you want to use C++ compiled program.
• Python if you want to run the python script.

Please note that tikz-dependency package is required when you want to compile generated latex files with this converter.

We will describe the usage for each implementation in the following sections. Please see -h or --help for all possible options. Again, note that the options is not available for the C/C++ implementation.

The python code just works. There are no need to install the code or additional packages.

$ ./conllx_to_tikz_dep.py conllx_data [options]

With the option --with-label, you can draw dependency trees with edge labels.

$ ./conllx_to_tikz_dep.py conllx_data --with-label

They look like this:

By default, the direction of dependency edge is from a head word to its modifier. With the option --reverse-edge, the direction of edges can be reversed.

$ ./conllx_to_tikz_dep.py conllx_data --reverse-edge

You can compare predicted parse trees by your parser to gold parse trees annotated by humans.

$ ./conllx_to_tikz_dep.py --reverse-edge --diff gold_data predict_data

$ cd c
$ make

To run C program

$ ./conllx_to_tikz_dep conllx_data

To run C++ program

$ ./conllx_to_tikz_dep_pp conllx_data

$ go build conllx_to_tikz_dep.go
$ ./conllx_to_tikz_dep conllx_data

or

$ go run conllx_to_tikz_dep.go conllx_data

For the details of the input data format, see the website: CoNLL-X Shared Task: Multi-lingual Dependency Parsing

This code is distributed under the New BSD License. See the file LICENSE.