High performance question/answering
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
The role of context in question answering systems
CHI '03 Extended Abstracts on Human Factors in Computing Systems
The design of a nearest-neighbor classifier and its use for Japanese character recognition
ICDAR '95 Proceedings of the Third International Conference on Document Analysis and Recognition (Volume 1) - Volume 1
Structured use of external knowledge for event-based open domain question answering
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Quantitative evaluation of passage retrieval algorithms for question answering
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
VideoQA: question answering on news video
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Question answering on lecture videos: a multifaceted approach
Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries
CLVQ: Cross-Language Video Question/Answering System
ISMSE '04 Proceedings of the IEEE Sixth International Symposium on Multimedia Software Engineering
Question answering passage retrieval using dependency relations
Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval
Comparative study of monolingual and multilingual search models for use with asian languages
ACM Transactions on Asian Language Information Processing (TALIP)
A natural language approach to content-based video indexing and retrieval for interactive e-learning
IEEE Transactions on Multimedia
Automatic image segmentation by integrating color-edge extraction and seeded region growing
IEEE Transactions on Image Processing
Localizing and segmenting text in images and videos
IEEE Transactions on Circuits and Systems for Video Technology
A comprehensive method for multilingual video text detection, localization, and extraction
IEEE Transactions on Circuits and Systems for Video Technology
BVideoQA: Online English-Chinese bilingual video question answering
Journal of the American Society for Information Science and Technology
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Developing a question answering (Q/A) system involves in integrating abundant linguistic resources such as syntactic parsers, named entity recognizers which are not only impose time cost but also unavailable in other languages. Ranking-based approaches take the advantage of both efficiency and multilingual portability but most of them bias to high frequent words. In this paper, we propose a new passage ranking algorithm for extending textQ/A toward videoQ/A based on searching lexical information in videos. This method takes both N-gram match and word density into account and finds the optimal match sequence using dynamic programming techniques. Besides, it is very efficient to handle real time tasks for online video question answering. We evaluated our method with 150 actual user's questions on the 45GB video collections. Nevertheless, four well-known but multilingual portable ranking approaches were adopted to compare. Experimental results show that our method outperforms the second best approach with relatively 25.64% MRR score.