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@TECHREPORT{lehtonen-2005,
         author = {Lehtonen, Mikko},
       keywords = {acoustic stream, hierarchical processing},
       projects = {Idiap},
          title = {Hierarchical approach for spotting keywords},
           type = {Idiap-RR},
         number = {Idiap-RR-41-2005},
           year = {2005},
    institution = {IDIAP},
       abstract = {The paper presents a new approach to spotting a particular sound (keyword) in an acoustic stream. The approach is based on hierarchical processing where equally-sampled posterior probabilities of phoneme classes are estimated first, followed by matched filtering that yields non-equally spaced values, one for each phoneme, indicating confidences of underlying phoneme being present. The target keyword is indicated by a particular sequence of high-confidence phonemes.},
            pdf = {https://publications.idiap.ch/attachments/reports/2005/rr05-41.pdf},
     postscript = {ftp://ftp.idiap.ch/pub/reports/2005/rr05-41.ps.gz},
ipdmembership={speech},
}