Towards identifying solutions to the problem posed in the initial post, we proposed the usage of a hitherto unexplored textual feature for the solution identification problem; that of lexical correlations between problems and solutions.
we use an IBM Model 1 translation model (Brown et al., 1990) in our technique; simplistically, such a model m may be thought of as a 2-d associative array where the value m is directly related to the probability of w 1 occuring in the problem when w 2 occurs in the solution.