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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},
}