Nec Corporation

Toshikazu Fukushima

Hiroshi Yamada

Hideki Kawai

Daisuke Nishiwaki

Koji Kida

Kazunori Muraki

Masahiko Hamanaka

Eiki Ishidera

Yoshihide Ishiguro

A hypertext checking apparatus comprises: a hypertext databasewhich stores the information about a page and a link; an information collecting unitwhich collects an information about the page and the link in the hypertext obtained from the hypertext database; a condition detecting unitwhich refers to the hypertext databaseto detect a part including logically mismatched link; a candidate providing unitthat provides a correction candidate related to the parts detected by the condition detecting unit; and a correction reflecting unitwhich corrects the hypertext based on the part detected by the condition detecting unitand the correction candidate provided by the correction providing unit

Apparatus, method, and computer program product for checking hypertext

A place name information extraction apparatus in which not only a place name expression appeared in a text is extracted but also the type of the extracted place name expression can be judged, and a place name information extraction method of the apparatus, and a storing medium stored place name information extraction programs of the method, and a map information retrieval apparatus used the place name information extraction apparatus are provided. The place name information extraction apparatus provides a place name expression detecting means that detects a place name expression appeared in a text and its position appeared the place name expression in the text, and a place name type judging means that judges a place name type, which signifies a meaning role of the place name expression appeared in the text, by analyzing before and after the position appeared the place name expression in the text.

Place name information extraction apparatus and extraction method thereof and storing medium stored extraction programs thereof and map information retrieval apparatus

A named entity discriminating system capable of discriminating names entities such as location names, personal names, and organization names in text with a high degree of accuracy is provided. A reading means reads text from a hypertext database. A single text analyzing means analyzes each text read by the reading means and detects candidates for the named entity in the text. A complex text analyzing means estimates the likelihood of the candidate named entity detected by the single text analyzing means by an analysis with reference to referring link text or linked text of the text in which the candidate named entity appears.

System, method and program for discriminating named entity

A full-text data base retrieving device retrieves a data base in accordance with a query. A full-text index has character location information representative of location of each of key character sequences of N characters that appear in the data base, where N is a positive integer. A query memory memorizes the query as a retrieval key character sequence. A separating section separates the retrieval key character sequence into a plurality of retrieval key character sequences of N characters to extract contexts as extracted contexts from the retrieval key character sequence in accordance with the retrieval key character sequences. A context classifying section classifies the extracted contexts into classified contexts having the classification numbers, respectively. An index retrieving section retrieves the full-text index in accordance with the sorts of the retrieval key character sequences and the classified contexts to read the character location information as a retrieval result out of the full-text index. A detecting section detects appearance locations of the retrieval key character sequence in the full-text data base to produce the appearance locations as a detected result.

Full-text index producing device for producing a full-text index and full-text data base retrieving device having the full-text index

A character strings reading device for reading character strings from input image data comprises cut-out recognition means for cutting out a segment corresponding to one character from the image data to perform individual character recognition every segment, a recognition result buffer for storing a recognition result of the cut-out recognition means, word searching means for searching a word string candidate corresponding to a combination of character candidates in the recognition result buffer, a word string candidate buffer for storing a search result of the word searching means, check portion determining means for determining a check target portion and a presumed character string of the check target portion on the basis of the result in the word string candidate buffer, and check means for judging the possibility of existence of the presumed character string on the check portion.

Character strings reading device

Full-Text index producing device for producing a full-text index and

A character string input system includes an input storage portion for temporarily storing input character string with an incomplete input indicative signs. There is also a word dictionary storing words. An incomplete word supplementing portion compares the character string with the word stored in the word dictionary. Also, there is a neglected word supplementing portion for predicting a word to be supplemented at the position of the incomplete input indicative sign representing an omitted word. A supplementing candidature storage portion temporarily stores candidate character strings for the incomplete word supplementing portion and the neglected word supplementing portion. A supplementing control portion controls the incomplete word supplementing portion and the neglected word supplementing portion on the basis of the incomplete input indicative sign, and retrieves the candidate character string corresponding to the position of the incomplete input indicative sign in the character string.

Character string input system for completing an input character string

A character string input system includes a direct character string buffer 50 storing character coded direct character string, a character string predicting portion 60 generating a predicted character string immediately following character string in the direct character string buffer 50, a predicted character string buffer 70 storing the predicted character string generated by the character string predicting portion, a display control portion 100 and a display portion 110 for displaying the direct character string stored in the direct character string buffer 50 and the predicted character string stored in the predicted character string buffer 70, a selection command input portion 30 for selecting a desired character string among the predicted character strings stored in the predicted character string, and a learning control portion 130 and a learning portion 140 storing hysteresis information which is made reference to upon generation of the character string candidates by the character string predicting portion 60 with use of the hysteresis information.

Growing community of inventors

Tokyo, Japan

Toshikazu Fukushima