Construction method of substance dictionary, extraction of binary relationship of substance, prediction method and dynamic viewer

A method of extracting a compound word expressing a substance name from text, the method comprising the steps of:

• segmenting said text into token units and extracting a coined word (a main keyword) peculiar to said substance in compliance with a predetermined word formation rule and a word (function keyword) registered in a list of words predetermined to designate the function and property of said substance;
• in sentences of said text including a main keyword extracted, extending the main keyword by combining one or more symbols, words and phrases, other main keywords or function keywords preceding or following said main keyword with it, according to a predetermined rule;
• and
• in sentences of said text, combining extracted main and function keywords or extracted main and function keywords and the thus extended main keyword into a noun phrase, according to a predetermined pattern.

A method of extracting binary relations between substances from text, the method comprising the steps of:

• preparing a dictionary into which nouns, each expressing a substance, have been registered;
• registering verbs, each expressing a binary relation between substances;
• manually or automatically collecting sentence patterns, each including one of said verbs and two nouns, and creating automatons of the sentence patterns;
• retrieving text from databases;
• subjecting a sentence in the retrieved text to the process of one of said automatons on the condition that two nouns have been registered in said dictionary;
• and
• outputting the two nouns respectively expressing two substances and a verb expressing a binary relation between the substances when said sentence has been accepted by the one of said automatons.