JP2002207495A - Remote word addition registration system and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit word registration from a remote place to a speech recognizer. SOLUTION: Data relating to the data to be registered is sent from a portable telephone 40 by using an electronic mail sending function. A word data file updating device 110 forms the word data to be registered by using the data received from the portable telephone 40 and registers the data in a language model 35 of the speech recognizer 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a remote word additional registration system and method for additionally registering words in a natural language processing device.

[0002]

2. Description of the Related Art Conventionally, a device for inputting or outputting a sentence written in a natural language, for example, a device such as a morphological analyzer, a machine translator, or a speech recognizer (collectively referred to as a natural language processor) stores words in a database. (Also referred to as a dictionary or a word data file), and performs information processing using the stored words. As a method of registering a word in such a database, for example, a method using a document creation function of an external device or the like (Matsui et al., "Registration method of unknown word in stochastic language model", Japanese Patent Application No. Hei 11 (1999)) -269458
Is known.

In this method, for example, words are additionally registered in an N-gram model used by a speech recognition apparatus, that is, words in a word data file in the following procedure.

The Ngram model described below, u
Nigram, bigram and back-off are described in "Speech Recognition by Probabilistic Model", Seiichi Nakagawa, IEICE 109-pp. See 119.

First, in order to additionally register a certain word uN-gram model, a word u to be registered (hereinafter referred to as an unknown word) and a word w already registered in the N-gram model (hereinafter a known word) will be described. ) And the following data relating to the concatenation of unknown word u is needed. Unknown word (unigram entry) u unknown word probability P (u) unknown word back-off coefficient α (u) set of unknown word and known word (biggram entry) (u, w), (W, u)-Bigram probability of unknown word and known word P (w | u), P (u | w) In this method, it is necessary to additionally register unknown word u.
Instead of inputting all of the above data, the notation u of the unknown word and the word class Cu to which the unknown word belongs are input to the unknown word list. -Unknown word list uCu Then, using the word class (for example, part of speech) input to the unknown word list as a key, the N-gram data for unknown word registration preset for each word class is read. -Unigram probability of words belonging to word class Cu P (Cu)-Back-off coefficient α (Cu) of words belonging to word class Cu-Set of words and known words belonging to word class Cu (Cu, w), (w , Cu)-The bigram probability of the word belonging to the word class Cu and the known word P (w | Cu), P (Cu | w) The last read N-gram data for registering an unknown word uses the word class Cu. Is replaced with the notation u of the unknown word input to the unknown word list, and is added to the N-gram language model, and the additional registration of the unknown word u is completed.

At this time, when adding a certain unknown word u to the N-gram model, the information that the user needs to input is an unknown word list (notation of unknown word and word class of unknown word). In this method, unknown word input means
A document recognition function (word processor) of a voice recognition device or an external device (personal computer) is used.
The input unknown word list is stored in the storage medium (hard disk) of the voice recognition device directly or via communication (LAN) or a portable recording medium (floppy (registered trademark) disk).

[0007]

When a word is registered in a natural language processing apparatus from a remote place such as outdoors, a wired communication line is required with an information processing apparatus (notebook personal computer) having a document creation function. . However, places where a wired communication line is installed are limited, and word registration cannot be performed in a place where a wired communication line cannot be used.

It is an object of the present invention to provide a remote word additional registration system and method which can further reduce the restriction on the communication environment as compared with the conventional system.

[0009]

In order to achieve the above object, according to the present invention, there is provided a remote word additional registration system for registering data relating to words used in a natural language processing apparatus. A mobile terminal that receives the data and transmits the data wirelessly, a receiving unit connected to a mobile phone network, and receiving data transmitted from the mobile terminal via the mobile phone network, based on the received data. Means for registering a word in the natural language processing apparatus.

According to a second aspect of the present invention, there is provided a remote word additional registration system for registering data relating to words used in a natural language processing apparatus, wherein the mobile terminal accepts the input of the data and wirelessly transmits the data. A receiving unit connected to a network and receiving the data transmitted from the mobile terminal via the mobile phone network; and a unit for registering a word in the natural language processing device based on the received data. It is characterized by having.

According to a third aspect of the present invention, in the remote word additional registration system according to the first or second aspect, the mobile terminal is a mobile phone having an e-mail transmission function, and the mobile terminal has an e-mail transmission function. The method is characterized in that the data is transmitted.

According to a fourth aspect of the present invention, there is provided a remote word additional registration method for registering data relating to a word used in a natural language processing apparatus, wherein the data is input to a mobile terminal, and the data is transmitted wirelessly from the mobile terminal. Receiving data transmitted from the mobile terminal via the mobile phone network by a communication device connected to the mobile phone network, and processing the natural language processing device by the information processing device based on the received data. The feature is to register words.

According to a fifth aspect of the present invention, in the remote word additional registration method according to the fourth aspect, the mobile terminal is a mobile phone having an e-mail transmission function, and the mobile terminal has an e-mail transmission function. Is transmitted.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a configuration of an entire system according to an embodiment of the present invention. In FIG. 1, a relay material transmission wave transmission device transmits sound by radio (transmission wave). Reference numeral 20 denotes a relay material transmission wave receiving device, which receives a transmission wave transmitted from the relay material transmission wave transmitting device 10 and extracts an audio signal. Reference numeral 30 denotes a voice recognition device that recognizes a voice of a voice signal input from the relay material transmission wave receiving device 20. The speech recognition result is output in the form of a word string.

Reference numeral 40 denotes a portable telephone (including a PHS) having an electronic mail transmission function. 50
Is a mobile phone base station that relays e-mail transmitted from the mobile phone 40. Reference numeral 60 denotes a mobile phone network. 70
Is a host device, which receives an e-mail transmitted from the mobile phone 40 via the mobile phone base station 50 and the mobile phone network 60, and transfers it to the router 90 of the broadcasting station via the Internet 80. The present embodiment has a new feature in that words to be registered in a word data file of a speech recognition device (natural language processing device) are input in the form of e-mail from a mobile phone.

Reference numeral 90 denotes a router, and the Internet 80
To receive information such as e-mails. 100 is a LAN (wide area network), which is installed in a broadcasting station. Reference numeral 110 denotes a word data file updating device, which receives an e-mail sent from the mobile phone 40 via the router 90 and the LAN 100. Words included in the body of the received e-mail are extracted by the word data file updating device and registered in the word data file of the voice recognition device.

FIG. 2 shows a functional configuration in the voice recognition device 30 and the word data file updating device 110. As the voice recognition device, a commercially available computer, for example, a personal computer can be used, and a well-known voice recognition program is stored in a storage medium such as a hard disk.
The recording medium further includes an acoustic model 34 used for speech recognition, a language model (word data file of the present invention) 35
And a pronunciation dictionary 36 are stored. The feature component is extracted from the sound transmitted from the relay material transmission wave transmitting device 10 by the feature extracting unit 31 realized by the voice recognition program. Based on the extracted feature components, the correct answer search unit 32 realized by the speech recognition program outputs a word string corresponding to the speech using the acoustic model 34, the language model 35, and the pronunciation dictionary 36. This speech recognition processing is well known, and a detailed description is omitted.

The word data file updating device 110 includes an e-mail reception storage unit 111, a reception information analysis unit 112,
It has a -gram additional registration unit 113. The word data file updating device 110 may be configured integrally with the speech recognition device 110 or may be configured separately.

The e-mail receiving / storing section 111 receives an e-mail sent from the mobile phone 40 and stores it in a memory or a hard disk inside the apparatus. The reception information analysis unit 112 analyzes the body of the received e-mail and extracts a set of words and word classes. The N-gram data additional registration unit 113 creates N-gram data from the extracted words and word classes, and registers the N-gram data in the language model 35 on the recording medium in the speech recognition device. E-mail reception storage unit 111, reception information analysis unit 112, N-gra
The m additional registration unit 113 can be realized by a program using a known technique.

The word registration processing executed in such a system configuration will be described below. Word registrant is mobile phone 4
By operating “0”, an e-mail service provided by a public telephone service provider (telephone company) is called on the display screen. The word registrant instructs the transmission of the e-mail after inputting the transmission destination of the e-mail (the e-mail address and the combination of the word to be registered and the word class) from the mobile phone. Nearest mobile phone base station 50
→ Form telephone network 60 → Host device 70 → Internet 8
An e-mail is sent to the word data file updating apparatus 110 through the route of 0 → router 90 → LAN 100 → word data file updating apparatus 110.

The data file updating device 110 analyzes the body of the e-mail, extracts a set of words and word classes, creates N-gram data to be registered (see the description of the prior art), Language model 35
Register additional.

As described above, according to the present embodiment,
In the broadcast of the broadcast at the relay site, the voice of the announcer is transmitted by the relay material transmission wave transmitting device 10 and the voice recognition device 30
To recognize the announcer's voice. The speech recognition result is provided for providing a subtitle supermarket. If there is a new term in the information that the announcer wants to convey, for example, a person's name, place name, etc., the announcer or other person at the relay site can use the mobile phone 40 to quickly register the word. .

The following embodiment can be carried out in addition to the above embodiment. 1) In the above embodiment, the remote word registration system is realized by the router and the word data file updating device. However, the remote word registration system is realized by using other devices and circuits that realize the functions of the router and the word data file updating device. It may be. For example, an electronic mail may be received using a communication device called a communication server or a gateway computer instead of a router.

Further, as another form, the voice recognition device may have an electronic mail receiving function and a word registration function. 2) In the above embodiment, data for word registration is registered from the mobile phone using the e-mail function. However, a notebook computer, an electronic notebook, or the like is connected to the mobile phone, and the registration processing is performed from these information processing devices. The data may be input, and the data may be transmitted from the mobile phone. In this case, there is no need to use the e-mail function.
Data may be transferred to the router using P (File Transfer Protocol) or the like.

[0026]

As described above, according to the present invention, when performing news subtitle broadcasting using voice recognition, keywords (important words) of report contents of an announcer or a reporter can be obtained by using a mobile phone. It is possible to register from a remote place, especially a place without a wired communication facility. This can contribute to improving the performance of a natural language processing device such as a speech recognition device.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a system configuration according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a functional configuration of a speech recognition device and a word data file updating device.

[Explanation of symbols]

 Reference Signs List 30 voice recognition device 40 mobile phone 50 mobile phone

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Akio Ando 1-10-11 Kinuta, Setagaya-ku, Tokyo Inside Japan Broadcasting Corporation Research Institute (72) Inventor Fumio Okano 1-10-11 Kinuta, Setagaya-ku, Tokyo No. Japan Broadcasting Corporation F-term in the Broadcasting Research Institute (reference) 5B091 AA15 BA19 CA02 CB02 CC02 CC16 CD03 5D015 GG03 LL12

Claims (5)

[Claims] 1. A remote word addition registration system for registering data related to a word used in a natural language processing device, comprising: a mobile terminal that receives input of the data and wirelessly transmits the data; Receiving means for receiving data transmitted from the mobile terminal via the mobile phone network; and means for registering a word in the natural language processing device based on the received data. Remote word addition registration system. 2. A remote word addition registration system for registering data related to a word used in a natural language processing device, wherein the mobile terminal accepts the input of the data, transmits the data wirelessly, is connected to a mobile phone network, Receiving means for receiving the data transmitted from the mobile terminal via the mobile phone network; and means for registering a word in the natural language processing device based on the received data. Characterized remote word addition registration system. 3. The word addition registration system according to claim 1, wherein the mobile terminal is a mobile phone having an electronic mail transmission function, and the mobile terminal transmits the data using the electronic mail transmission function of the mobile telephone. Remote word addition registration system characterized by the following. 4. A remote word additional registration method for registering data related to a word used in a natural language processing device, comprising: inputting the data to a mobile terminal; transmitting the data wirelessly from the mobile terminal; The connected communication device receives data transmitted from the mobile terminal via the mobile phone network, and registers a word in the natural language processing device by the information processing device based on the received data. A remote word additional registration method, characterized in that: 5. The word addition registration method according to claim 4, wherein the mobile terminal is a mobile phone having an electronic mail transmission function, and the mobile terminal transmits the data by an electronic mail transmission function of the mobile telephone. Remote word addition registration method.