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Mandarin STD 2006 Results

This document outlines the evaluation results from the Spoken Term Detection (STD) Workshop held on December 14-15, 2006. It discusses the corpus statistics and contributions from participants, highlighting key findings and future directions. The evaluation utilized a rich transcription dataset from 2003 and 2004, containing audio sources from various Chinese media outlets. The results showed the highest Average Term Weighting Value (ATWV) of 0.346 on CTS data, emphasizing the importance of word segmentation in scoring and the need for further analysis in this area.

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Mandarin STD 2006 Results

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  1. Mandarin STD 2006 Results http://www.nist.gov/speech/tests/std Jonathan Fiscus, Jérôme Ajot, George Doddington December 14-15, 2006 2006 Spoken Term Detection Workshop

  2. Outline • Evaluation results • Corpus statistics • Participants • Results • Future directions

  3. Evaluation Corpora • Data Sources - Rich Transcription 2003 and 2004 Test Set • BNews: China Central Television, Radio Free Asia, New Tang Dynasty TV (~1 hour) • CTS: Hong Kong Univ. of Science and Tech. collection (~1 hour) • Transcripts: • Transcribed by the LDC for EARS • Word segmentation done by a native speaker • We need to check the results to see if this had and impact

  4. Mandarin Term Profile • Followed the same selection protocol English • Trigrams, bigrams, and unigrams • Selected by Y.C. Chang

  5. STD 2006 Mandarin Participants

  6. Mandarin CTS

  7. Conclusions • Evaluation completed • Highest ATWV on CTS data: 0.346 • Still lots to do for this data • Study the impact of word segmentation on scoring • Conditioned analysis needs completed

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