摘要:
A speech data retrieval apparatus (10) includes a speech database (1), a speech recognition unit (2), a confusion network creation unit (3), an inverted index table creation unit (4), a query input unit (6), a query conversion unit (7) and a label string check unit (8). The speech recognition unit (2) reads speech data from the speech database (1), carries out a speech recognition process with respect to the read speech data, and outputs a result of speech recognition process as a lattice in which a phoneme, a syllable, or a word is a base unit. The confusion network creation unit (3) creates a confusion network based on the output lattice and outputs the result of speech recognition process as the confusion network. The inverted index table creation unit (4) creates an inverted index table based on the output confusion network. The query input unit (6) receives a query input by a user, carries out a speech recognition process with respect to the received query, and outputs a result of speech recognition process as a character string. The query conversion unit (7) converts the output character string into a label string in which a phoneme, a syllable, or a word is a base unit. The label string check unit (8) checks the label string against the inverted index table and retrieves speech data which is included in both of the label string and the speech database (1).
摘要:
The invention provides a method of making composite particles for efficient delivery of polyelectrolytes to a target. Composite particles are made by two methods: 1) by first forming disperse polyelectrolyte condensates, by mixing the polyelectrolyte with a condensing agent, and then combining the disperse polyelectrolyte condensates with particles so that the disperse polyelectrolyte condensates bind to the surfaces of the particles or 2) combining particles with opposite charge polyelectrolyte to form a polyelectrolyte coated particles followed by a subsequent polyelectrolyte of opposite charge to form a composite particle. The invention includes composite particles, where each composite particle is comprised of a particle with the polyelectrolyte from one or more polyelectrolyte condensates bound to that particle. One advantage of these composite particles is that they permit more efficient and increased amounts of polyelectrolytes to be delivered to a target, in comparison to the prior art. Delivery methods include but are not limited to methods whereby the particles are accelerated to a velocity sufficient to penetrate or reach the surface of the target by pneumatic, hydraulic, transferred impulse, macro projectile, centripetal force, explosive, electric discharge, mechanical vibration, magnetic, gravimetric, or electric field.
摘要:
The present invention provides novel conjugates of a synthetic polypeptide containing RGD or (dR)GD and a biodegradable polymer, hyaluronate. The conjugates are prepared by any one of three different methods provided by the present invention: (1) an epoxide method (2) a sodium periodate method, and (3) a tresyl chloride method. The conjugates prepared by these methods are useful to aid in wound healing and tissue regeneration by providing a temporary matrix for tissue repair. The invention also provides novel RGD-peptides.
摘要:
A speech data retrieval apparatus (10) includes a speech database (1), a speech recognition unit (2), a confusion network creation unit (3), an inverted index table creation unit (4), a query input unit (6), a query conversion unit (7) and a label string check unit (8). The speech recognition unit (2) reads speech data from the speech database (1), carries out a speech recognition process with respect to the read speech data, and outputs a result of speech recognition process as a lattice in which a phoneme, a syllable, or a word is a base unit. The confusion network creation unit (3) creates a confusion network based on the output lattice and outputs the result of speech recognition process as the confusion network. The inverted index table creation unit (4) creates an inverted index table based on the output confusion network. The query input unit (6) receives a query input by a user, carries out a speech recognition process with respect to the received query, and outputs a result of speech recognition process as a character string. The query conversion unit (7) converts the output character string into a label string in which a phoneme, a syllable, or a word is a base unit. The label string check unit (8) checks the label string against the inverted index table and retrieves speech data which is included in both of the label string and the speech database (1).
摘要:
Phonetic recognition is provided by capturing dynamical behavior and statistical dependencies of the acoustic attributes used to represent a subject speech waveform. A segment based framework is employed. Temporal behavior is modelled explicitly by creating dynamic templates, called tracks, of the acoustic attributes used to represent the speech waveform, and by generating the estimation of the acoustic spatio-temporal correlation structure. An error model represents this estimation as the temporal and spatial correlations between the input speech waveform and track generated speech segment. Models incorporating these two components (track and error estimation) are created for both phonetic units and for phonetic transitions. Phonetic contextual influences are accounted for by merging context-dependent tracks and pooling error statistics over the different contexts. This allows for a large number of contextual models without compromising the robustness of the statistical parameter estimates. The transition models also supply contextual information.