1. EXTRACTING COMPLEX PREDICATES IN HINDI ACROSS PARALLEL CORPORA
GUIDE : Prof. Amitabha Mukerjee By : Amit Kumar (10074) Ankit Modi (10104)

2. INTRODUCTION
A Complex Predicate (CP) is a multi-word compound that functions as a single verb Ex : उसने किताब वापस कर दिया मुझे बच्चों के माता-पिताओं के साथ काम करना भी अच्छा लगता है जो कि अक्सर सलाह लेने आते हैं - यह जानकार खुशी होती है कि आप किसी की मदद कर सकते हैं |

3. INTRODUCTION CP = Word + Light Verb Ex : उसने किताब वापस कर दिया
कर दिया (CP) = कर (W) दिया (LV)
A Light Verb is a verb that has little semantic content of its own and it therefore forms a predicate  with some additional expression, which is usually a noun. Ex : देना, लेना, पाना, उठाना

4. PROBLEM STATEMENT
Given a parallel English­Hindi corpora, we have to detect complex predicates  (CPs)
Using the fact that a CP is a multi­word expression with its meaning being distinct from the light verb (LV).

5. MOTIVATION
CPs improve expressiveness of a language and Hindi is abundant in it

6. MOTIVATION
CPs improve expressiveness of a language and Hindi is abundant in it
Detection of CPs is a tough task

7. MOTIVATION
CPs improve expressiveness of a language and Hindi is abundant in it
Detection of CPs is a tough task
Their detection provides important resource for tasks such as Wordnet construction, Linguistic analysis etc

8. Aligned English-Hindi corpus
Framework
Aligned English-Hindi corpus
I also enjoy working with the children's parents who often come to me for advice - it's good to know you can help
मुझे बच्चों के माता-पिताओं के साथ काम करना भी अच्छा लगता है जो कि अक्सर सलाह लेने आते हैं - यह जानकार खुशी होती है कि आप किसी की मदद कर सकते हैं |

9. Framework Search for Hindi LV & its morphological forms
Aligned English-Hindi corpus
Search for Hindi LV & its morphological forms
I also enjoy working with the children's parents who often come to me for advice - it's good to know you can help
मुझे बच्चों के माता-पिताओं के साथ काम करना भी अच्छा लगता है जो कि अक्सर सलाह लेने आते हैं - यह जानकार खुशी होती है कि आप किसी की मदद कर सकते हैं |

10. Framework Aligned English-Hindi corpus
Search for Hindi LV & its morphological forms
Search for equivalent English meaning of LVs
I also enjoy working with the children's parents who often come to me for advice - it's good to know you can help
मुझे बच्चों के माता-पिताओं के साथ काम करना भी अच्छा लगता है जो कि अक्सर सलाह लेने आते हैं - यह जानकार खुशी होती है कि आप किसी की मदद कर सकते हैं |

11. Framework Aligned English-Hindi corpus
Search for Hindi LV & its morphological forms
Search for equivalent English meaning of LVs
Scan left of those LVs whose English meaning is not found
I also enjoy working with the children's parents who often come to me for advice - it's good to know you can help
मुझे बच्चों के माता-पिताओं के साथ काम करना भी अच्छा लगता है जो कि अक्सर सलाह लेने आते हैं - यह जानकार खुशी होती है कि आप किसी की मदद कर सकते हैं |

12. Framework Aligned English-Hindi corpus
Search for Hindi LV & its morphological forms
Search for equivalent English meaning of LVs
Collect the Hindi word (W) if it is not a stop word or else keep scanning
Scan left of those LVs whose English meaning is not found
I also enjoy working with the children's parents who often come to me for advice - it's good to know you can help
मुझे बच्चों के माता-पिताओं के साथ काम करना भी अच्छा लगता है जो कि अक्सर सलाह लेने आते हैं - यह जानकार खुशी होती है कि आप किसी की मदद कर सकते हैं |

13. Framework Aligned English-Hindi corpus
Search for Hindi LV & its morphological forms
Search for equivalent English meaning of LVs
CP = W+LV unless W is an exit word
Collect the Hindi word (W) if it is not a stop word or else keep scanning
Scan left of those LVs whose English meaning is not found
I also enjoy working with the children's parents who often come to me for advice - it's good to know you can help
मुझे बच्चों के माता-पिताओं के साथ काम करना भी अच्छा लगता है जो कि अक्सर सलाह लेने आते हैं - यह जानकार खुशी होती है कि आप किसी की मदद कर सकते हैं |

14. Sample Results
As of now, we have extracted 10,000 CPs But we need to add more morphological forms in Hindi LV list.

15. Code Snapshot

16. Resources
English- Hindi parallel Corpora:
List of Hindi Light Verbs : Reverse Complex Predicates by Shakthi Poornima, Department of Linguistics, SUNY university of Buffalo
Morphological forms of English verbs :
Morphological forms of Hindi verbs : Extracted from the large Hindi corpus (Blog Corpus)

17. References
[1] Mining Complex Predicates In Hindi Using A Parallel HindiEnglish Corpus, R. Mahesh K. Sinha, IIT Kanpur
[2] Detecting Complex Predicates in Hindi using POS Projection across Parallel Corpora, Amitabha Mukerjee, Ankit Soni and Achla M Raina, IIT Kanpur
[3] Complex Predicates in Indian Languages and wordnets. Pushpak Bhattacharyya, Debasri Chkrabarti and Vaijayanthi M. Sarma. Language Resources and Evaluation 40(34):
Wikepedia:

18. Thank you
Questions ?

19. Other Approaches
[2] This problem was solved using word alignment and POS tagging of parallel sentences
[3] Derivation of complex predicates has also been dealt with linguistically and computationally
CPs had been mined using computational methods and then, were categorized using statistical analysis [Sriram and Joshi, 2005].
Chakrabarti et al (2008) present a method for automatic extraction of CPs only from a corpus based on linguistic features