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020 _a9783031025563
024 7 _a10.1007/978-3-031-02556-3
_2doi
040 _aES-MaUEC
_bspa
_cES-MaUEC
_dES-MaUEC
050 4 _aP325.5.D38
_b2007 EB
100 1 _aBellegarda, Jerome Rene,
_eautor
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_9687656
_d1961-
245 1 0 _aLatent Semantic Mapping :
_bPrinciples and Applications
_cby Jerome R. Bellegarda
250 _a1st edition 2007
264 1 _aCham
_bSpringer International Publishing
_c2007
300 _a1 recurso en línea (X, 101 páginas)
336 _atexto
_btxt
_2rdacontent
337 _aelectrónico
_bc
_2rdamedia
338 _arecurso electrónico
_bcr
_2rdacarrier
347 _aarchivo de texto
_bPDF
490 0 _aSynthesis Lectures on Speech and Audio Processing
_x1932-1678
505 0 _aContents: I. Principles -- Introduction -- Latent Semantic Mapping -- LSM Feature Space -- Computational Effort -- Probabilistic Extensions -- II. Applications -- Junk E-mail Filtering -- Semantic Classification -- Language Modeling -- Pronunciation Modeling -- Speaker Verification -- TTS Unit Selection -- III. Perspectives -- Discussion -- Conclusion -- Bibliography.
520 _aLatent semantic mapping (LSM) is a generalization of latent semantic analysis (LSA), a paradigm originally developed to capture hidden word patterns in a text document corpus. In information retrieval, LSA enables retrieval on the basis of conceptual content, instead of merely matching words between queries and documents. It operates under the assumption that there is some latent semantic structure in the data, which is partially obscured by the randomness of word choice with respect to retrieval. Algebraic and/or statistical techniques are brought to bear to estimate this structure and get rid of the obscuring ""noise."" This results in a parsimonious continuous parameter description of words and documents, which then replaces the original parameterization in indexing and retrieval. This approach exhibits three main characteristics: -Discrete entities (words and documents) are mapped onto a continuous vector space; -This mapping is determined by global correlation patterns; and -Dimensionality reduction is an integral part of the process. Such fairly generic properties are advantageous in a variety of different contexts, which motivates a broader interpretation of the underlying paradigm. The outcome (LSM) is a data-driven framework for modeling meaningful global relationships implicit in large volumes of (not necessarily textual) data. This monograph gives a general overview of the framework, and underscores the multifaceted benefits it can bring to a number of problems in natural language understanding and spoken language processing. It concludes with a discussion of the inherent tradeoffs associated with the approach, and some perspectives on its general applicability to data-driven information extraction. Contents: I. Principles / Introduction / Latent Semantic Mapping / LSM Feature Space / Computational Effort / Probabilistic Extensions / II. Applications / Junk E-mail Filtering / Semantic Classification / Language Modeling / Pronunciation Modeling / Speaker Verification / TTS Unit Selection / III. Perspectives / Discussion / Conclusion / Bibliography.
988 _aSynthesis Collection of Technology_2007
650 7 _2embne
_9140153
_aSemántica
_xModelos matematicos
650 7 _2embne
_9147323
_aReconocimiento automático del lenguaje
650 7 _2embne
_9666075
_aLingüística computacional
776 0 8 _iPrinted edition:
_z9783031014284
776 0 8 _iPrinted edition:
_z9783031036842
856 4 0 _uhttps://go.openathens.net/redirector/universidadeuropea.es?url=https://doi.org/10.1007/978-3-031-02556-3
_zAcceso a este recurso digital (usuarios Universidad Europea de Madrid)
942 _2lcc
_cLE
998 _b03/2023
_dz
_esc
_zSI