Apparatus, method and computer program product for searching document

A document searching apparatus comprising:

• an obtaining unit that obtains a plurality of conversion rules that are used for conversion of a notational form of a character;
• a first converting unit that converts a variant form character, which is a character of a different form from a normal form that is a predetermined notational form, to a normal form character which is a character of the normal form in accordance with the conversion rules obtained by the obtaining unit;
• a first storage unit that stores, in correspondence with one another, the variant form character, the normal form character, and rule identification information that is used to identify the conversion rules applied to the conversion to the normal form character;
• a second storage unit that stores a document that is a search target;
• a dividing unit that divides the document stored by the second storage unit and obtains a character;
• a second converting unit that converts the character obtained by the dividing unit to the normal form character in accordance with the variant form character and the normal form character that are brought into correspondence with each other by the first storage unit;
• and
• a third storage unit that stores, in correspondence with one another the normal form character obtained by the second converting unit, the rule identification information, document identification information that is used to identify the document, and location information of the character.

A document searching method comprising:

• obtaining a input search word input by a user;
• obtaining a search condition relating to a notational form of the input search word;
• converting the input search word to a normal-form search word which is a word of a normal form that is a predetermined notational form, based on a normal form character which is a character of the normal form and a variant form character which is a character of a notational form different from the normal form, that are brought into correspondence by a first storage unit that stores, in correspondence with one another the normal form character, the variant form character, and rule identification information that is used to identify a conversion rule applied to conversion of the variant form character to the normal form character;
• and
• comparing the normal form character and the rule identification information that are brought into correspondence by a second storage unit with the normal-form search word and the search condition, respectively, that are obtained in a converting, the second storage unit storing, in correspondence with one another, the normal form character that corresponds to a character included in a search target document, the rule identification information, document identification information that is used to identify the search target document, and location information of the character included in the search target document, and thereby searching the character in the search target document.

A document searching method comprising:

• obtaining a plurality of conversion rules that are used to convert a notational form of a character;
• converting a variant form character which is a character of a notational form different from a normal form that is a predetermined notational form, to a normal form character which is a character of the normal form based on the conversion rules;
• registering with a first storage unit, in correspondence with one another the variant form character, the normal form character, rule identification information that identifies the conversion rules that are used for conversion to the normal form character in the converting;
• registering a search target document with a second storage unit;
• dividing the search target document stored by the second storage unit to obtain a character;
• converting the character to the normal form character, based on the variant form character and the normal form character that are brought into correspondence by the first storage unit;
• and
• registering with a third storage unit, in correspondence with one another, the normal form character, the rule identification information, document identification information of the search target document, and location information of the characters included in the search target document.

A computer program product having a computer readable medium including programmed instructions for performing a search process of a document, wherein the instructions, when executed by a computer, cause the computer to perform:

• obtaining a input search word input by a user;
• obtaining a search condition relating to a notational form of the input search word;
• converting the input search word to a normal-form search word which is a word of a normal form that is a predetermined notational form, based on a normal form character which is a character of the normal form and a variant form character which is a character of a notational form different from the normal form, that are brought into correspondence by a first storage unit that stores, in correspondence with one another the normal form character, the variant form character, and rule identification information that is used to identify a conversion rule applied to conversion of the variant form character to the normal form character;
• and
• comparing the normal form character and the rule identification information that are brought into correspondence by a second storage unit with the normal-form search word and the search condition, respectively, that are obtained in a converting, the second storage unit storing, in correspondence with one another, the normal form character that corresponds to a character included in a search target document, the rule identification information, document identification information that is used to identify the search target document, and location information of the character included in the search target document, and thereby searching the character in the search target document.

A computer program product having a computer readable medium including programmed instructions for performing a search process of a document, wherein the instructions, when executed by a computer, cause the computer to perform:

• obtaining a plurality of conversion rules that are used to convert a notational form of a character;
• converting a variant form character which is a character of a notational form different from a normal form that is a predetermined notational form, to a normal form character which is a character of the normal form based on the conversion rules;
• registering with a first storage unit, in correspondence with one another the variant form character, the normal form character, rule identification information that identifies the conversion rules that are used for conversion to the normal form character in the converting;
• registering a search target document with a second storage unit;
• dividing the search target document stored by the second storage unit to obtain a character;
• converting the character to normal form character, based on the variant form character and the normal form character that are brought into correspondence by the first storage unit;
• and
• registering with a third storage unit, in correspondence with one another, the normal form character, the rule identification information, document identification information of the search target document, and location information of the characters included in the search target document.