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1. (WO2017148521) UNCERTAINTY MEASURE OF A MIXTURE-MODEL BASED PATTERN CLASSIFER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/148521 International Application No.: PCT/EP2016/054581
Publication Date: 08.09.2017 International Filing Date: 03.03.2016
IPC:
G06K 9/00 (2006.01) ,G06K 9/62 (2006.01) ,G10L 15/08 (2006.01) ,G10L 15/14 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
62
Methods or arrangements for recognition using electronic means
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15
Speech recognition
08
Speech classification or search
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15
Speech recognition
08
Speech classification or search
14
using statistical models, e.g. Hidden Markov Models [HMM]
Applicants:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE/SE]; 164 83 Stockholm, SE
Inventors:
GRANCHAROV, Volodya; SE
SVERRISSON, Sigurdur; SE
Agent:
ERICSSON; Torshamnsgatan 21-23 164 80 Stockholm, SE
Priority Data:
Title (EN) UNCERTAINTY MEASURE OF A MIXTURE-MODEL BASED PATTERN CLASSIFER
(FR) MESURE D'INCERTITUDE D'UN CLASSIFICATEUR DE FORMES BASÉ SUR UN MODÈLE DE MÉLANGE
Abstract:
(EN) There is provided mechanisms for determining an uncertainty measure of a mixture-model based parametric classifier. A method is performed by a classification device. The method comprises obtaining a short-term frequency representation of a multimedia signal. The short-term frequency representation defines an input sequence. The method comprises classifying the input sequence to belong to one class of at least two available classes using the parametric classifier. The parametric classifier has been trained with a training sequence. The method comprises determining an uncertainty measure of the thus classified input sequence based on a relation between posterior probabilities of the input sequence and posterior probabilities of the training sequence.
(FR) L'invention concerne des mécanismes permettant de déterminer une mesure d'incertitude d'un classificateur paramétrique basé sur un modèle de mélange. Un procédé est mis en œuvre par un dispositif de classification. Le procédé comprend l'obtention d'une représentation de fréquence à court terme d'un signal multimédia. La représentation de fréquence à court terme définit une séquence d'entrée. Le procédé inclut la classification de la séquence d'entrée pour qu'elle appartienne à l'une d'au moins deux classes disponibles au moyen du classificateur paramétrique. Le classificateur paramétrique a été entraîné à l'aide d'une séquence d'apprentissage. Ce procédé consiste à déterminer une mesure d'incertitude de la séquence d'entrée ainsi classifiée sur la base de la relation entre les probabilités a posteriori de la séquence d'entrée et les probabilités a posteriori de la séquence d'apprentissage.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)