Patents by Inventor Eryu Wang
Eryu Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150019214Abstract: A method and a device for training a DNN model includes: at a device including one or more processors and memory: establishing an initial DNN model; dividing a training data corpus into a plurality of disjoint data subsets; for each of the plurality of disjoint data subsets, providing the data subset to a respective training processing unit of a plurality of training processing units operating in parallel, wherein the respective training processing unit applies a Stochastic Gradient Descent (SGD) process to update the initial DNN model to generate a respective DNN sub-model based on the data subset; and merging the respective DNN sub-models generated by the plurality of training processing units to obtain an intermediate DNN model, wherein the intermediate DNN model is established as either the initial DNN model for a next training iteration or a final DNN model in accordance with a preset convergence condition.Type: ApplicationFiled: December 16, 2013Publication date: January 15, 2015Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Eryu WANG, Li LU, Xiang ZHANG, Haibo LIU, Feng RAO, Lou LI, Shuai YUE, Bo CHEN
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Publication number: 20140379354Abstract: A method, apparatus and system for payment validation have been disclosed. The method includes: receiving a payment validation request from a terminal, wherein the payment validation request includes identification information and a current voice signal; detecting whether the identification information is identical to a pre-stored identification information; if identical: extracting voice characteristics associated with an identity information and a text password from the current voice signal; matching the current voice characteristics to a pre-stored speaker model; if successfully matched: sending an validation reply message to the terminal to indicate that payment request has been authorized. The validation reply message is utilized by the terminal to proceed with a payment transaction. The identity information identifies an owner's current voice signal, and the text password is indicated by the current voice signal.Type: ApplicationFiled: December 2, 2013Publication date: December 25, 2014Applicant: Tencent Technology (Shenzhen) Co., Ltd.Inventors: Xiang Zhang, Li Lu, Eryu Wang, Shuai Yue, Feng Rao, Haibo Liu, Bo Chen
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Publication number: 20140350939Abstract: Systems and methods are provided for adding punctuations. For example, one or more first feature units are identified in a voice file taken as a whole; the voice file is divided into multiple segments: one or more second feature units are identified in the voice file; a first aggregate weight of first punctuation states of the voice file and a second aggregate weight of second punctuation states of the voice file are determined, using a language model established based on word separation and third semantic features; a weighted calculation is performed to generate a third aggregate weight based on at least information associated with the first aggregate weight and the second aggregate weight; and one or more final punctuations are added to the voice file based on at least information associated with the third aggregate weight.Type: ApplicationFiled: January 22, 2014Publication date: November 27, 2014Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Haibo Liu, Eryu Wang, Xiang Zhang, Shuai Yue, Lu Li, Li Lu, Jian Liu, Bo Chen
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Publication number: 20140350918Abstract: A method and system for adding punctuation to a voice file is disclosed. The method includes: utilizing silence or pause duration detection to divide a voice file into a plurality of speech segments for processing, the voice file includes a plurality of features units; identifying all features units that appear in the voice file according to every term or expression and semantics features of the every term or expression that form each of the plurality of speech segments; using a linguistic model to determine a sum of weight of various punctuation modes in the voice file according to all the feature units, the linguistic model is built upon semantics features of various parsed out terms or expressions from a body text of a spoken sentence according to a language library; and adding punctuations to the voice file based on the determined sum of weight of the various punctuation modes.Type: ApplicationFiled: March 19, 2014Publication date: November 27, 2014Applicant: TENCENT TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: Haibo LIU, Eryu WANG, Xiang ZHANG, Li LU, Shuai YUE, Bo CHEN, Lou LI, Jian LIU
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Publication number: 20140237576Abstract: A computer-implemented method is performed at a server having one or more processors and memory storing programs executed by the one or more processors for authenticating a user from video and audio data. The method includes: receiving a login request from a mobile device, the login request including video data and audio data; extracting a group of facial features from the video data; extracting a group of audio features from the audio data and recognizing a sequence of words in the audio data; identifying a first user account whose respective facial features match the group of facial features and a second user account whose respective audio features match the group of audio features. If the first user account is the same as the second user account, retrieve the sequence of words associated with the user account and compare the sequences of words for authentication purpose.Type: ApplicationFiled: April 25, 2014Publication date: August 21, 2014Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Xiang ZHANG, Li LU, Eryu WANG, Shuai YUE, Feng RAO, Haibo LlU, Lou LI, Duling LU, Bo CHEN
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Publication number: 20140236600Abstract: An electronic device with one or more processors and memory trains an acoustic model with an international phonetic alphabet (IPA) phoneme mapping collection and audio samples in different languages, where the acoustic model includes: a foreground model; and a background model. The device generates a phone decoder based on the trained acoustic model. The device collects keyword audio samples, decodes the keyword audio samples with the phone decoder to generate phoneme sequence candidates, and selects a keyword phoneme sequence from the phoneme sequence candidates. After obtaining the keyword phoneme sequence, the device detects one or more keywords in an input audio signal with the trained acoustic model, including: matching phonemic keyword portions of the input audio signal with phonemes in the keyword phoneme sequence with the foreground model; and filtering out phonemic non-keyword portions of the input audio signal with the background model.Type: ApplicationFiled: December 11, 2013Publication date: August 21, 2014Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Li LU, Xiang ZHANG, Shuai YUE, Feng RAO, Eryu WANG, Lu LI
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Publication number: 20140222417Abstract: A method and a device for training an acoustic language model, include: conducting word segmentation for training samples in a training corpus using an initial language model containing no word class labels, to obtain initial word segmentation data containing no word class labels; performing word class replacement for the initial word segmentation data containing no word class labels, to obtain first word segmentation data containing word class labels; using the first word segmentation data containing word class labels to train a first language model containing word class labels; using the first language model containing word class labels to conduct word segmentation for the training samples in the training corpus, to obtain second word segmentation data containing word class labels; and in accordance with the second word segmentation data meeting one or more predetermined criteria, using the second word segmentation data containing word class labels to train the acoustic language model.Type: ApplicationFiled: December 17, 2013Publication date: August 7, 2014Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Duling LU, Lu LI, Feng RAO, Bo CHEN, Li LU, Xiang ZHANG, Eryu WANG, Shuai YUE
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Publication number: 20140214417Abstract: A method and device for voiceprint recognition, include: establishing a first-level Deep Neural Network (DNN) model based on unlabeled speech data, the unlabeled speech data containing no speaker labels and the first-level DNN model specifying a plurality of basic voiceprint features for the unlabeled speech data; obtaining a plurality of high-level voiceprint features by tuning the first-level DNN model based on labeled speech data, the labeled speech data containing speech samples with respective speaker labels, and the tuning producing a second-level DNN model specifying the plurality of high-level voiceprint features; based on the second-level DNN model, registering a respective high-level voiceprint feature sequence for a user based on a registration speech sample received from the user; and performing speaker verification for the user based on the respective high-level voiceprint feature sequence registered for the user.Type: ApplicationFiled: December 12, 2013Publication date: July 31, 2014Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Eryu WANG, Li LU, Xiang ZHANG, Haibo LIU, Lou LI, Feng RAO, Duling LU, Shuai YUE, Bo CHEN
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Publication number: 20140214419Abstract: An automatic speech recognition method includes at a computer having one or more processors and memory for storing one or more programs to be executed by the processors, obtaining a plurality of speech corpus categories through classifying and calculating raw speech corpus; obtaining a plurality of classified language models that respectively correspond to the plurality of speech corpus categories through a language model training applied on each speech corpus category; obtaining an interpolation language model through implementing a weighted interpolation on each classified language model and merging the interpolated plurality of classified language models; constructing a decoding resource in accordance with an acoustic model and the interpolation language model; and decoding input speech using the decoding resource, and outputting a character string with a highest probability as a recognition result of the input speech.Type: ApplicationFiled: December 16, 2013Publication date: July 31, 2014Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Feng Rao, Li Lu, Bo Chen, Shuai Yue, Xiang Zhang, Eryu Wang, Dadong Xie, Lou Li, Duling Lu
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Publication number: 20140214406Abstract: A method of processing information content based on a language model is performed at a computer, the method including the following steps: identifying a plurality of expressions in the information content that is queued to be processed; dividing the plurality of expressions into a plurality of characteristic units according to semantic features and predetermined characteristics associated with each of the plurality of characteristic units, each characteristic unit including a subset of the plurality of expressions and the predetermined characteristics at least including a respective integer number of expressions that are included in the characteristic unit; extracting, from the language model, a plurality of probabilities for a plurality of punctuation marks associated with each of the plurality of characteristic units; and in accordance with the extracted probabilities, associating a respective punctuation mark with each of the plurality of characteristic units included in the information content.Type: ApplicationFiled: January 6, 2014Publication date: July 31, 2014Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Haibo LIU, Eryu WANG, Xiang ZHANG, Li LU, Shuai YUE, Qiuge LIU, Bo CHEN, Jian LIU, Lu LI
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Patent number: 8343506Abstract: The present invention discloses a chimeric Chikungunya virus comprising a heterologous alphavirus cDNA fragment and a Chikungunya virus cDNA fragment. The heterologous alphavirus may include but is not limited to Sindbis virus, Eastern equine encephalitis virus or Venezuelan equine encephalitis virus. The present invention also discloses the use of this chimeric Chikungunya virus as vaccines and in serological and diagnostic assays.Type: GrantFiled: April 12, 2010Date of Patent: January 1, 2013Assignee: The Board of Regents of the University of Texas SystemInventors: Ilya V. Frolov, Scott C. Weaver, Eryu Wang
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Publication number: 20110171249Abstract: The present invention discloses a chimeric Chikungunya virus comprising a heterologous alphavirus cDNA fragment and a Chikungunya virus cDNA fragment. The heterologous alphavirus may include but is not limited to Sindbis virus, Eastern equine encephalitis virus or Venezuelan equine encephalitis virus. The present invention also discloses the use of this chimeric Chikungunya virus as vaccines and in serological and diagnostic assays.Type: ApplicationFiled: April 12, 2010Publication date: July 14, 2011Inventors: Ilya V. Frolov, Scott C. Weaver, Eryu Wang