1. VNLP: An Open Source Framework for Vietnamese Natural Language Processing
Ngoc Minh Le - ePi Technology
Bich Ngoc Do – ePi Technology
Vi Duong Nguyen – ePi Technology
Thi Dam Nguyen – ePi Technology

2. Major tasks in Natural Language Processing
High level Application
Word segmentation
Part-of-speech tagging
Automatic summarization
Machine translation
Sentiment analysis
Word segmentation, part-of-speech tagging (POS tagging), syntactic parsing, named-entity recognition (NER) and co-reference resolution is fundamental task in Natural Language Processing (NLP).
Researchers have to do the task although they are spent a lot of time and cost of researchers to reach a deliverable state.
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Fundamental task

3. Named Entity Recognizer (NER)
Fundamental Tasks
Word segmentation
Part-of-speech tagging
Syntactic Parser
 Named Entity Recognizer (NER)
Coreference resolution

4. Framework for Vietnamese NLP?
Stanford CoreNLP Framework for English
Framework for Vietnamese
Natural Language Processing

5. JVnTextPro
JVnTextPro
Tokenizer
POS Tagging
Enough?
Solution?

6. Word segmentation VnTokenizer with accuracy upto 96%-98%.
Some improvement are to speed up vnTokenizer:
Reading XML-encode data via SAX
Tokenize a document by LL parser
Using automaton with default transition.

7. Part-of-speech tagging
JVnTagger 91.3%
VnTagger 95%
VnQTag %

8. MaltParser Syntactic parsing
Tree adjoining grammar, head driven phrase structure grammar,…
No software deliverable.
MaltParser
Open-source
Independent of language
Acceptable accuracy 70%

9. Named-Entity Recognition
Using rule-based method.
The rule-based NER includes two part:
a word searching component called gazetteer in GATE's terminology
a pattern matching component called transducer
Accuracy 59%

10. Coreference resolution
Approaching by heuristic rules consists of two component:
Orthographical matcher (orthormatcher) with 17 rules.
Co-referencer performs pronominal co-referencing and integrate everything into co-reference lists

11. Open Source Framework for Vietnamese NLP
Document Reset PR
VnTokenizer
Syntactic parsing
Named-entity recognition
Sentence splitter
VnTagger
MaltParser
Vn-Ner
Co-reference
VNLP 11

12. Application of VNLP Automatic synthesis and classification webpages
Online Reputation Managerment - noti5.vn
applications of sentiment analysis
all mention about a brand
determine positive and negative opinion 12

13. PART 5 – CONCLUSION AND FUTURE WORK

15. Thank for your attention!
Q & A