Abstract: A created sentence evaluating device 1 using a neural network unit 10 of an encoder/decoder model in which an encoder unit 100 inputs a sentence in a first language, and a decoder unit 101 sequentially outputs word candidates for a sentence in a second language corresponding to the sentence in the first language and likelihood of the word candidates includes: an encoder input unit 13 configured to input a created sentence created in the second language to the encoder unit 100 sequentially for each word; and an evaluation unit 17 configured to evaluate words of the created sentence on the basis of word candidates in the second language and the likelihood of the word candidates output by the decoder unit 101 on the basis of an input from the encoder input unit 13.

Abstract: A scoring model learning device is a device that generates a scoring model for determining naturalness of an answer sentence to a question sentence, which outputs a likelihood of a label indicating naturalness of the answer sentence on the basis of a context vector, and the device includes a division unit that divides a concatenation sentence included in learning data including a pair of a concatenation sentence having a question sentence and an answer sentence concatenated with each other and a correct answer label indicating naturalness of the answer sentence into words to generate a word string, a prediction unit that inputs each word included in the word string to the scoring model according to an arrangement order and acquires a likelihood, and a model learning unit that updates parameters of the scoring model on the basis of an error between the acquired likelihood and the correct answer label.

Abstract: A dividing device includes: an acquisition unit that acquires a plurality of words constituting a character string one by one from a head of the character string; a first calculation unit that calculates a forward division likelihood indicating a likelihood of dividing the character string at a position in front of a first word acquired by the acquisition unit and a backward division likelihood indicating a likelihood of dividing the character string at a position immediately after the first word; a detection unit that detects a division point based on the forward division likelihood and the backward division likelihood, the division point being a position at which the character string is divided; a generation unit that generates a chunk by dividing the character string at the division point; and an output unit that outputs the chunk.

Abstract: To easily construct a translation model environment in which the sentences of a plurality of second languages corresponding to a sentence of a first language can be generated. An internal state changing device 1 includes a change unit 13 configured to change an internal state that is a final hidden state of an encoder, in a translation model that is a learned model constituted by an encoder-decoder model, as the translation model for translating an original sentence that is a sentence of a first language into a translated sentence that is a sentence of a second language.

Abstract: A created sentence evaluating device 1 using a neural network unit 10 of an encoder/decoder model in which an encoder unit 100 inputs a sentence in a first language, and a decoder unit 101 sequentially outputs word candidates for a sentence in a second language corresponding to the sentence in the first language and likelihood of the word candidates includes: an encoder input unit 13 configured to input a created sentence created in the second language to the encoder unit 100 sequentially for each word; and an evaluation unit 17 configured to evaluate words of the created sentence on the basis of word candidates in the second language and the likelihood of the word candidates output by the decoder unit 101 on the basis of an input from the encoder input unit 13.

Abstract: Consciousness of environmental conservation is increasing nowadays, and there are power generators for a portable device and employing power generation schemes without a co2 discharge, such as solar power generation and hand-crank power generation. When, however, power is supplied, information indicating that the power is obtained from clean energy without a CO2 discharge is unknown at the portable-device side. When power is supplied from the power generator to the portable device, a power generation scheme identifier for identifying a power generation scheme is transmitted. The portable device identifies the power generation scheme identifier, and can recognize the power generation scheme of the connected power generator. A supplied power level is recognized based on a power level of the storage battery of the portable device at a time point of starting the power supply, and a power level of the storage battery at a time point of terminating the power supply.

Abstract: A modulation device including: a modulation unit for modulating a carrier in an audible sound range by an encoded transmission signal to generate a modulated signal; a masker sound generation unit for generating a masker signal outputted as a masker sound for making the modulated signal harder to hear when transmitted with the modulated signal; and an acoustic signal generation unit for inserting the masker signal in the modulated signal to generate an acoustic signal.

Abstract: Consciousness of environmental conservation is increasing nowadays, and there are power generators for a portable device and employing power generation schemes without a co2 discharge, such as solar power generation and hand-crank power generation. When, however, power is supplied, information indicating that the power is obtained from clean energy without a CO2 discharge is unknown at the portable-device side. When power is supplied from the power generator to the portable device, a power generation scheme identifier for identifying a power generation scheme is transmitted. The portable device identifies the power generation scheme identifier, and can recognize the power generation scheme of the connected power generator. A supplied power level is recognized based on a power level of the storage battery of the portable device at a time point of starting the power supply, and a power level of the storage battery at a time point of terminating the power supply.

Abstract: When only part of content that is stored inside a terminal is updated, the updated content is allowed to be received efficiently, taking into account reducing the power consumption of the terminal.

Abstract: An OFDM modulation/demodulation method in a transmission system that transmits data from a transmission source to a transmitting destination through OFDM modulation/demodulation is provided, which includes an extension step of extending, by the transmission source, a symbol period by copying an OFDM-modulated symbol in a predetermined place of the OFDM-modulated symbol for a predetermined length; a transmission step of transmitting, by the transmission source, the OFDM-modulated symbol that includes the extended symbol period to the transmitting destination; a demodulation performance step of receiving, by the transmitting destination, the OFDM-modulated symbol from the transmission source and performing OFDM demodulation of the received OFDM-modulated symbol from a plurality of time points; and a selection step of selecting, by the transmitting destination, the demodulation result of the OFDM demodulation to be adopted on the basis of the demodulation results of the OFDM demodulation from the plurality of ti

Abstract: Provided is a broadcast supplemental data transmission device, a broadcast supplemental data transmission method, and a broadcast system that can reduce the traffic of a communication network as much as possible at the time of supplementing missing data in broadcasted content data. When “GET HTTP/1.1 If Unmodified Since Time Information”, which is a request for retransmission of missing data containing time information, is received from a receiving device, an HTTP response module determines whether there is rebroadcast of contents containing missing data based on the time information contained in the request for retransmission. When it is determined by the HTTP response module that there is rebroadcast, “412 Precondition Failed”, which is one of error notifications, is transmitted as a response to the receiving device, and the transmission of the contents through a communication network is not performed.

Abstract: A data embedding device has: a phase adjusting unit for adjusting a phase of an acoustic signal in accordance with a frame unit in which arbitrary transmission data is to be embedded; and a combining unit for embedding the transmission data in the phase-adjusted acoustic signal. A data extraction device has: a removing unit for removing a low frequency component from an acoustic signal in which arbitrary transmission data is embedded, to generate a low-frequency-removed acoustic signal; a synchronizing unit for synchronizing the low-frequency-removed acoustic signal generated by the removing unit, in accordance with a frame unit used when the transmission data was embedded in the acoustic data; and an extraction unit for extracting the transmission data from the low-frequency-removed acoustic signal synchronized by the synchronizing unit.

Abstract: A modulation device, a demodulation device, and a transmission system and acoustic signal transmission method using them which can carry out a synchronization process for data signals without using a carrier frequency for a synchronization signal. The modulation device transmits an acoustic signal superposed with a PN sequence set according to a carrier frequency and a data signal. A demodulation device receives the acoustic signal, determines the PN sequence having the highest maximum correlation value with the acoustic signal in a plurality of PN sequences, detects a symbol synchronization point according to the correlation value between the thus determined PN sequence and the acoustic signal, and performs a synchronization process. Thereafter, according to the detected synchronization point and determined PN sequence, an OFDM demodulation processing unit decides the carrier frequency band of the data signal superposed on the acoustic signal and demodulates the data signal.

Abstract: An object of the present invention is to make it possible to appropriately maintain PPP-based communications even in an environment in which the terminal moves and the communication environment continually changes. A mobile communication terminal comprises a plurality of wireless accessing devices for establishing PPP-based communication links for respectively different modes of wireless communications with a fixed communication apparatus, which is a communication partner; a PPP device for combining the established communication links; and a valid wireless LAN searching portion for detecting that wireless communication is possible for a wireless LAN adapter. The PPP device executes control so as to establish communication links for the wireless LAN adapter detected as being capable of wireless communication, and for a L2TP virtual device.

Abstract: An OFDM modulation/demodulation method in a transmission system that transmits data from a transmission source to a transmitting destination through OFDM modulation/demodulation is provided, which includes an extension step (step S1) of extending, by the transmission source, a symbol period by copying an OFDM-modulated symbol in a predetermined place of the OFDM-modulated symbol for a predetermined length; a transmission step (step S2) of transmitting, by the transmission source, the OFDM-modulated symbol that includes the extended symbol period to the transmitting destination; a demodulation performance step (step S3) of receiving, by the transmitting destination, the OFDM-modulated symbol from the transmission source and performing OFDM demodulation of the received OFDM-modulated symbol from a plurality of time points; and a selection step (step S4) of selecting, by the transmitting destination, the demodulation result of the OFDM demodulation to be adopted on the basis of the demodulation results of the OF

Abstract: Cryptographically Protected Prefixes (“CPPs”) are used to create IP addresses, preventing any correlation between a CPP IP address and a host's geographic location. An IP address is subdivided into address prefixes of multiple segments. Each segment is encrypted with a cryptographic key known only to a subset of routers in the access network domain (or Privacy Domain). Therefore, each router obtains the information it needs to forward a packet of information, but not any additional information.

Abstract: An object is to provide a modulation device, a demodulation device, and a transmission system and acoustic signal transmission method using them which can carry out a synchronization process for data signals without using a carrier frequency for a synchronization signal. A modulation device 3 transmits an acoustic signal superposed with a PN sequence set according to a carrier frequency and a data signal. A demodulation device 9 receives the acoustic signal, determines the PN sequence having the highest maximum correlation value with the acoustic signal in a plurality of PN sequences, detects a symbol synchronization point according to the correlation value between thus determined PN sequence and the acoustic signal, and performs a synchronization process. Thereafter, according to the detected synchronization point and determined PN sequence, an OFDM demodulation processing unit 38 decides the carrier frequency band of the data signal superposed on the acoustic signal and demodulates the data signal.

Abstract: An acoustic signal transmission system of the present invention is a system for transmitting information via sound waves, and has a modulation device, a plurality of speakers, a microphone and a demodulation device. The modulation device generates transmission acoustic signals by encoding transmission signals based on a transmission diversity method and allocating the encoded transmission signals to a plurality of transmission paths. The plurality of speakers output the transmission acoustic signals as sound waves respectively based on the allocation. The microphone receives the sound waves which are output from the plurality of speakers, and outputs received acoustic signals. The demodulation device decodes the received acoustic signals based on the transmission diversity method by using a transfer function of the each sound wave from the plurality of speakers to the microphone.

Abstract: An object of the present invention is to make it possible to appropriately maintain PPP-based communications even in an environment in which the terminal moves and the communication environment continually changes. A mobile communication terminal comprises a plurality of wireless accessing means for establishing PPP-based communication links for respectively different modes of wireless communications with a fixed communication apparatus, which is a communication partner; a PPP device for combining the established communication links; and a valid wireless LAN searching portion for detecting that wireless communication is possible for a wireless LAN adapter. The PPP device executes control so as to establish communication links for the wireless LAN adapter detected as being capable of wireless communication, and for a L2TP virtual device.

Abstract: A data embedding device has: a phase adjusting unit for adjusting a phase of an acoustic signal in accordance with a frame unit in which arbitrary transmission data is to be embedded; and a combining unit for embedding the transmission data in the phase-adjusted acoustic signal. A data extraction device has: a removing unit for removing a low frequency component from an acoustic signal in which arbitrary transmission data is embedded, to generate a low-frequency-removed acoustic signal; a synchronizing unit for synchronizing the low-frequency-removed acoustic signal generated by the removing unit, in accordance with a frame unit used when the transmission data was embedded in the acoustic data; and an extraction unit for extracting the transmission data from the low-frequency-removed acoustic signal synchronized by the synchronizing unit.