The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2015
Filed:
Mar. 28, 2012
Jian Luan, Beijing, CN;
Linfang Wang, Beijing, CN;
Hairong Xia, Beijing, CN;
Sheng Zhao, Beijing, CN;
Daniela Braga, Lisboa, PT;
Jian Luan, Beijing, CN;
Linfang Wang, Beijing, CN;
Hairong Xia, Beijing, CN;
Sheng Zhao, Beijing, CN;
Daniela Braga, Lisboa, PT;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Dynamic features are utilized with CRFs to handle long-distance dependencies of output labels. The dynamic features present a probability distribution involved in explicit distance from/to a special output label that is pre-defined according to each application scenario. Besides the number of units in the segment (from the previous special output label to the current unit), the dynamic features may also include the sum of any basic features of units in the segment. Since the added dynamic features are involved in the distance from the previous specific label, the searching lattice associated with Viterbi searching is expanded to distinguish the nodes with various distances. The dynamic features may be used in a variety of different applications, such as Natural Language Processing, Text-To-Speech and Automatic Speech Recognition. For example, the dynamic features may be used to assist in prosodic break and pause prediction.