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sequence during training. This paper explores the design of an ASR-free end-to-end system for text query-based keyword search (KWS) from speech trained with minimal supervision. Our E2E KWS system consists of three sub-systems. The first sub-system is a recurrent neural network (RNN)-based acoustic auto-encoder trained to
keyword and background text in an active learning framework. It takes into account the local character level scores and global word level scores to distinguish keywords from non-keywords. We propose to apply the bayesian active learning strategy to identify the regions of sample space from which more meaningful labeled
-specific HMM Viterbi decoding process needed to obtain the confidence scores of each word to be spotted. This paper presents a novel way to compute such confidence scores, directly from character lattices produced during a single Viterbi decoding process using only the "filler" model (i.e. no explicit keyword
We propose a statistical script independent line based word spotting framework for offline handwritten documents based on Hidden Markov Models. We propose and compare an exhaustive study of filler models and background models for better representation of background or non-keyword text. The candidate keywords are
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