@article {1660,
	title = {{Improving Graph-based Random Walks for Complex Question Answering Using Syntactic, Shallow Semantic and Extended String Subsequence Kernels}},
	journal = {Information Processing and Management (IPM), Special Issue on Question Answering},
	volume = {47(6)},
	year = {2011},
	pages = {843{\textendash}855},
	author = {Y. Chali and S. A. Hasan and S. R. Joty}
}
