This paper presents an information retrieval system for the NTCIR-7 information retrieval for question answering task. This system is composed by three parts: (1) Query processing (2) Retrieval model (3) Re-rank module. Query processing filters stop-words and selects query terms to generate a required term set for further retrieval. Threes retrieval models from two famous retrieval systems are ...

By generalizing the notion of location of a constituent to allow discontinuous Ioctaions, one can describe the discontinuous constituents of non-configurational languages. These discontinuous constituents can be described by a variant of definite clause grammars, and these grammars can be used in conjunction with a proof procedure to create a parser for non-configurational languages.

The theory of definite descriptions Bertrand Russell presented in “On Denoting” one hundred years ago was instrumental in defining the then newly emerging philosophy of language, but a more remarkable achievement is that this centenarian theory is the currently dominant theory of definite descriptions. But what, ex actly, is this theory? The question needs to be asked because the theory Russell...

We consider a fractional program with both linear and quadratic equation in numerator and denominator  having second order cone (SOC) constraints. With a suitable change of variable, we transform the problem into a  second order cone programming (SOCP)  problem.  For the quadratic fractional case, using a relaxation, the problem is reduced to a semi-definite optimization (SDO) program. The p...

An orthonormal basis matrix $ X of a subspace {\mathcal X} is known not to be unique, unless there are some kinds normalization requirements. One them require that X^{ \text{T}}D positive semi-definite, where D constant apt size. It natural one in multi-view learning models which serves as projection and determined by maximization problem over the Stiefel manifold whose objective function conta...