1. A Suite to Compile and Analyze an LSP Corpus
6th International Conference
on Language Resources and Evaluation
LREC 2008
Rogelio Nazar – Jorge Vivaldi – M. Teresa Cabré
{rogelio.nazar; jorge.vivaldi;

2. Introduction
This system (JAGUAR) is a set of tools for compiling and exploring an LSP corpus from the web
Usage Examples:
Terminology extraction
Bilingual lexicon extraction
Neologisms extraction
Architecture: a system divided in two main modules:
Compilation of an LSP corpus from the web
Analysis of the corpus with statistical techniques

3. Module 1: Compilation of an LSP corpus from the web
Document retrieval by querying search engines
Classification of the collection on the basis of two axis:
Degree of relevance to the topic
Possibility of corpus tuning with user feedback
Degree of specialization of the document
Structure of the document (abstract, introduction, etc.)
System for bibliographical references, etc.
Final classification is the result of the combination of these factors.

4. Module 1: Compilation of an LSP corpus from the web
Classification by degree of relevance to the topic:

5. Module 1: Compilation of an LSP corpus from the web
Classification by degree of relevance to the topic: coocurrence graphs

6. Module 1: Compilation of an LSP corpus from the web
Evaluation of the documents classification:
Cumulative precision in the ranking
of documents with the term spastic diplegia.

7. Module 1: Compilation of an LSP corpus from the web
Evaluation of the documents classification:
Precision and Recall for the experiments.

8. Module 1: Compilation of an LSP corpus from the web
Evaluation of the documents classification:
Probability distribution of precision as a random variable (performance of random classifiers).

9. Module 2: Analysis of the corpus with statistical techniques
1. Input: from module 1 or from user compiled corpus
2. Main functions:
Measures of vocabulary richness
Analysis of sample representativeness
Automatic language recognition
Kwic search
N-grams extraction and sorting
Collocations extraction
Measures of association
Models of term distribution
Coefficients for vector comparison

19. Conclusions
We have presented the system JAGUAR, set of tools for compiling and exploring an LSP corpus from the web
The main characteristics of this suit are the following:
It is able to collect an LSP corpus from the web, ensuring the thematic adequacy and degree of specialization to a given domain
It offers tools to statistically explore such collection in a friendly interface
It has also been conceived as a library
The original algorithms have been successfully evaluated
It usage save time and effort in the analysis of a corpus offering also new insights, a perspective of the data invisible to the naked eye.

20. Future Work Project is now growing in different directions:
Progressive enhancement with new functions and algorithms
Turning into a desktop application

21. Thanks!