Hi all,<div>I am transforming lattices generated by speech recognition to confusion networks using lattice-tool, and because confusion network decoding is based on minimum word error rate(WER), it would reduce WER, but in my experiments, the performance became worse after confusion network decoding, so I am confused if there exist some errors in my command line as below,</div>
<div><br></div><div>[step 1] : lattice prunning</div><div>bin/lattice-tool.exe -read-htk -in-lattice-list [lattice_list] -write-htk -out-lattice-dir [lattice_output_dir] -overwrite -posterior-prune 0.001 </div><div><br clear="all">
[step 2]: transformaing lattice to confusion network<br>bin/lattice-tool.exe -read-htk -in-lattice [lattice] -acoustic-mesh -write-mesh [mesh_name] -htk-lmscale $gram_factor -htk-acscale $HTKasscale -htk-wdpenalty $insert_prob -overwrite -ignore-vocab [ignore_dict]</div>
<div><br></div><div>Thanks a lot.</div><div> wei chen<br><br>
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