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GSoC/2014/Project ideas

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Ideas for Google Summer of Code 2014

  • Please Read the FAQ

Apart from the following ideas , you can propose your own ideas

If you want to propose an idea, please do it in project mailing list>

A spell checker for Indic language that understands inflections

Project:

SILPA project has a spellchecker written using python with a not so simple algorithm. But still it is not capable of handling inflection and agglutination occurring in Indian languages especially south Indian languages. The dictionary we have for Malayalam spellchecker have about 150000 words. Of course we can expand the dictionary, but that doesn't have much value since words can be formed in Malayalam or Tamil etc by joining multiple words. In addition to that, words get inflected based on grammar forms(sandhi), plural, gender etc. Hunspell has a system to handle this, but so far nobody succeeded in getting it working for multi level suffix stripping as required for Malayalam. Some times a Malayalam word can be formed by more than 5 words joining together. We will need a word splitting logic or a table taking care of all patterns. The project is to attempt solving this with hunspell. If that is not feasible(hunspell upstream is not active), develop an algorithm and implement it.

Recently Tamil attempted developing a spellchecker using Hunspell with multi level suffix stripping. You can see the result here https://github.com/thamizha/solthiruthi. Our attempt should be first to use Hunspell to achieve spellchecking with agglutination and inflection. Probably it will require lot of scripting to generate suffix patterns, we can ask help from existing language communities too. If Hunspell has limitation with multi level suffxes- sometimes Indian languages require more than 5 levels of suffix stripping, we need to document it(bug and documentation) and try to attempt python based solution on top of SILPA framework.

  • Savannah Task
  • Expertise required: Average level understanding of grammar system of at least one Indian language
  • Complexity: Advanced
  • Mentor : Santhosh Thottingal

Indic rendering support in ConTeXt

Project:

ConTeXt is another TeX macro system similar to LaTeX but much more suitable for design. To find more information about ConTeXt, see the wiki http://wiki.contextgarden.net/Main_Page. ConTeXt MKII have Indic language rendering support using XeTeX. but MKII is deprecated, and the new MKIV backend doesn't support Indic rendering yet. The aim of this project is to add support to Inidic rendering to ConTeXt MKIV. XeTeX is using Harfbuzz to do correct Indic rendering.

  • Savannah Task
  • Expertise required: Understanding of the TeX system, experience in either LaTeX or ConTeXt and basic understanding of Indic language rendering. MKIV uses Lua, familiarity with Lua, opentype specifications or Harfbuzz will be added advantage.
  • Mentor : Rajeesh K Nambiar
  • More Details: ConTeXt mkii (deprecated) can work with XeTeX backend for Indic rendering. Here is a sample file:
\usemodule[simplefonts]
\definefontfeature[malayalam][script=mlym]
\setmainfont[Rachana][features=malayalam]
\starttext
മലയാളം \TeX ഉപയോഗിച്ച് ടൈപ്പ്സെറ്റ് ചെയ്തത്
\stoptext

Generate the output using command

texexec --xetex <file.tex>