Word mapping device, word mapping method, program implementing the word mapping method, and storage medium storing the program

摘要

PPROBLEM TO BE SOLVED: To provide a word mapping technology for processing a great deal of information sources and improving quality of conceptual vector of estimated different unregistered words. PSOLUTION: A word dividing means 11 applies morpheme analysis to a text set. A conceptual vector estimating means 12 searches a conceptual base 16 which stores words and a set of a pairs of concept vectors of the words to determine whether the word is a registered word is or an unregistered word, forms a text set which include different unregistered word with respect to an arbitrary different unregistered word, acquires a conceptual vector of the different registered word in the set, makes the conceptual vector as a parameter correspond to the different unregistered word, then makes the conceptual vector of the different unregistered word minimizing a sum resulting from adding an average of the conceptual vectors in each of the texts in the set to a square sum of a distance between each conceptual vector all over the texts in the set an estimated conceptual vector of the different unregistered word. PCOPYRIGHT: (C)2008,JPO&INPIT