Yannick Estève / ONTRAC-Kaldi

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<!-- $Id: options.htm,v 1.1.1.1 2001/03/15 17:48:49 jon Exp $ -->
<HTML><HEAD>
<CENTER><TITLE>SCLITE Command Line Options</TITLE>
</HEAD>
<BODY></CENTER><p><hr>

<H1> 
<A NAME="options_name_0">
<A HREF="sclite.htm#sclite_name_0">Sclite</A> Commandline Options</A>
</H1>
<p>
The commandline options for <A HREF="sclite.htm#sclite_name_0">sclite</A>
can be broken into four categories:
<ol type=1>
<li><a href="options.htm#input_options_0"> Input File Options: </a>
<ul>
<a href="options.htm#option_e_name_0">-e</a>,
<a href="options.htm#option_h_name_0">-h</a>,
<a href="options.htm#option_i_name_0">-i</a>,
<a href="options.htm#option_P_name_0">-P</a>,
<a href="options.htm#option_r_name_0">-r</a>,
<a href="options.htm#option_R_name_0">-R</a>
</ul>

<li><a href="options.htm#alignment_options_0"> Alignment Options: </a>
<ul>
<a href="options.htm#option_c_name_0">-c</a>,
<a href="options.htm#option_d_name_0">-d</a>,
<a href="options.htm#option_F_name_0">-F</a>,
<a href="options.htm#option_L_name_0">-L</a>
<a href="options.htm#option_m_name_0">-m</a>,
<a href="options.htm#option_s_name_0">-s</a>,
<a href="options.htm#option_S_algo1_name_0">-S</a>,
<a href="options.htm#option_T_name_0">-T</a>
<a href="options.htm#option_w_name_0">-w</a>
</ul>
<li><a href="options.htm#output_options_0"> Output Options: </a>
<ul>
<a href="options.htm#option_f_name_0">-f</a>,
<a href="options.htm#option_l_name_0">-l</a>,
<a href="options.htm#option_O_name_0">-O</a>,
<a href="options.htm#option_p_name_0">-p</a>
</ul>
<li><a href="options.htm#report_options_0"> Scoring Report Options: </a>
<ul>
<a href="options.htm#option_C_name_0">-C</a>,
<a href="options.htm#option_n_name_0">-n</a>,
<a href="options.htm#option_o_name_0">-o</a>
</ul>
</ol>



<p>
<a name="input_options_0"><strong> Input File Options: </strong></a>
 <UL>

These options control/define the input to 
<A HREF="sclite.htm#sclite_name_0">sclite</A>.  Input can come from either
reference and hypothesis files, or piped input from previously aligned REF and
HYP files.
<br>
<br>
   <a name="option_e_name_0">-e  gb|euc</a>	
   <ul>
          Define the character encoding used for the text portion
          input  ref  and hyp files.  The flag "gb" stands for GB
          encoded  Chinese  and  "euc"  stands  for  EUC  encoded
          Japanese.   Both  encodings  are  2-byte  per character
          encodings.  The default, is extended ASCII.
   </ul> <br>
    <a name="option_h_name_0">-h</a>
	 hypfile [  
<a href="infmts.htm#trn_fmt_name_0">trn</a> |
<a href="infmts.htm#txt_fmt_name_0">txt</a> |
<a href="infmts.htm#ctm_fmt_name_0">ctm</a> ] title
   <ul>

          The '-h' option is a required argument which  specifies
          the   input   hypothesis  file.   The  optional format field,
          "[  <a href="infmts.htm#trn_fmt_name_0">trn</a> |
		<a href="infmts.htm#txt_fmt_name_0">txt</a> |
		<a href="infmts.htm#ctm_fmt_name_0">ctm</a>] "
	  specifies the input file format from  the  set
          of  input  formats  described above.  The default input
          format is "<a href="infmts.htm#trn_fmt_name_0">trn</a>".  When reports are generated, the "hypfile"  name will be used to identify the origins of the
          results.  If the "title" option is  used,  that  string
          will be used instead.

	  <p> The -h option may be used more than once to align multiple files.
   </ul> <br>
    <a name="option_i_name_0">-i [ wsj | atis | rm | swb | spu_id ] </a>
   <ul>
          The '-i' option defines how to interpret the  utterance
          id's  used in the transcription input file format "<a href="infmts.htm#trn_fmt_name_0">trn</a>"
          described above. This argument identifies the corpus of
          the utterance id:
	  <br>
	  <br>
	  <dl>
	   <dt>
             wsj -
           <dd>
               for Wall Street Journal and CSRNAB
           <dt>
             atis -
           <dd>
               for ATIS3
           <dt>
             rm | swb | spu_id -
           <dd>
               are synonyms which refer to generic  utterance  id
               formats  whereby  the utterance id is made up of a
               speaker code, followed by a hyphen or  underscore,
               followed by an utterance number.
	  </dl>
	  <p>
          This option is only required  for  aligning  transcript
          inputs (<a href="infmts.htm#trn_fmt_name_0">trn</a>).

	    <comment> TBD </comment>
   </ul> <br>
   <a name="option_P_name_0">-P</a>
   <ul>
	  Alignments are read from 'stdin' as  input  to  sclite.
          The  format  of  the input must be in the "sgml" output
          format, created either by '-o sgml' or by  piped  input
          from another sclite utility.  No re-alignments are performed on the read in alignments, only scoring  reports
          can be generated.
   </ul> <br>
    <a name="option_r_name_0">-r</a> reffile [
<a href="infmts.htm#trn_fmt_name_0">trn</a> |
<a href="infmts.htm#stm_fmt_name_0">stm</a> |
<a href="infmts.htm#ctm_fmt_name_0">ctm</a> ]
   <ul>
          The '-r' option, a  required  argument,  specifies  the
          input  reference  file which the hypothesis file(s) are
          compared to.  The optional format field
	  "[  <a href="infmts.htm#trn_fmt_name_0">trn</a> |
		<a href="infmts.htm#stm_fmt_name_0">stm</a> |
		<a href="infmts.htm#ctm_fmt_name_0">ctm</a> ] "
	  field specifies the
          input  file  format  from  the  set  of  input  formats
          described above.  The default input format is "<a href="infmts.htm#trn_fmt_name_0">trn</a>".
   </ul> <br>
   <a name="option_R_name_0">-R</a>	
   <ul>
          Interpret the text symbols as a right-to-left language such as
	  Arabic.  The default is to interpret text in a left-to-right fashion
	  as in English.
   </ul> <br>
</ul>
<a name="alignment_options_0"><strong> Alignment Options: </strong></a>
<ul>
   <a name="option_c_name_0">-c [ NOASCII DH ]</a>
   <ul>
          Chop up the words into separate characters before doing
          the alignment.  It is generally not the practice of the
          ARPA community to score at the  character  level.   The
          intent  of  this option is to be able to score Mandarin
          Chinese at the character level.  The  option  "NOASCII"
          does  not  separate  characters if they are ASCII.  The
          option "DH"  deletes  hyphens  from  the  ref  and  hyp
          strings before alignment.  This option only works using
          the DP alignment algorithm.  (-c & -d are exclusive)
   </ul> <br>
   <a name="option_d_name_0">-d</a>
   <ul>
          Use <a href="sclite.htm#gnu_diff_alignment_0">GNU diff</a>
	  for alignments  rather  than  the  default
          dynamic programming.  (-c & -d are exclusive)

   </ul> <br>
    <a name="option_F_name_0">-F</a>
   <ul>
	  Perform the  alignment  using  a  cost  function  which
          counts  fragments,  words  ending  or  beginning with a
          hyphen, as correct if the spelling  up  to  the  hyphen
          matches the spelling of the hypothesized word.
          Options -F and -d are exclusive.
   </ul> <br>
    <a name="option_L_name_0">-L LM</a>
   <ul>

Define the <A HREF="../src/slm_v2/doc/toolkit_documentation.html">
CMU-Cambridge Statistical Language Modeling Toolkit v2</A> language
mode file to be 'LM'.  The LM file must be created using the
<A HREF="../src/slm_v2/doc/toolkit_documentation.html#idngram2lm">idngram2lm</A> program.
(See the toolkit documentation details of how
to make the language model.)  Currently, SCTK supports 1, 2 and 3-grams.

<P> The language model is used to compute an individual weight for each
word in the reference and hypothesis strings.  The weight is defined
to be <i>Log<sub>2</sub>(P(word|context))</i>.  Each pair of aligned
strings is considered to be independent, so therefore, there is
no context for initial words in each pair.

<P>
The word-weights are used in two ways, first as a method to define word-to-word distances
for <A href="sclite.htm#word-weight-mediated"> word-weight-mediated alignment </A>
and second to perform <A HREF="sclite.htm#weighted-word-scoring"> 
weighted word scoring </A>.

<P> Out-of-Vocabulary words get the default weight of 20.0, and optionally
deletable words get a default weight of 0.0.

   </ul> <br>
    <a name="option_m_name_0">-m [ ref | hyp ]</a>
   <ul>
          When scoring a hypothesis ctm file against a  reference
          stm  file,  the  time  spans  of the two may not match,
          (i.e. the start time of the first word/segment may  not
          match  or the end time of the last word/segment may not
          match).
	<p>
          When this option is used, the alignment phase of  scoring
          ignores  any  segment  or  word  (depending on the
          option(s) used) which is not in the time  span  of  the
          opposite  file.   The time span of a file is defined to
          be start time of the first time mark, to the  end  time
          of the last time mark.
	<p>
          The "ref" option  reduces  the  reference  segments  to
          those which are within the hypothesis file time span.
	<p>
          The "hyp" option reduces the hypothesis words to  those
          which are within the reference file tiem span.
	<p>
          Both "ref" and "hyp" may be used simultaneously.
	<p>
          The  argument  -m  by  itself  defaults  to  '-m  ref'.
          Exclusive with -d.

   </ul> <br> 
   <a name="option_s_name_0">-s</a>
   <ul>
          Do Case-sensitive alignments.  Otherwise all input is mapped to 
	  a single case before scoring.  Of course, GB and UEX encode text
	  data is never case-converted.
   </ul> <br>
    <a name="option_S_algo1_name_0">-S algo1 lexicon [ ASCIITOO ] </a>
	<ul>
          The '-S' option performs an inferred word  segmentation
          alignment algorithm.  This  option
          is intended to be used for the LVCSR evaluation of Mandarin
	  Chinese.  A problem with scoring Mandarin at  the
          word level is the lack of clearly defined words in Mandari
	  text.  This option implements an algorithm which,
          given  a word segmentation for the reference string and
          a "lexicon" of legal words, computes  a  minimal  error
          rate word alignment.  The algorithm is as follows:
	  <br> <br>
	  <ol type=1>
          <li>  Convert  the  previously  word-segmented  reference
          string into a word network.

          <li> Covert the hypothesis text to a string  of  characters,
	  each  character  representing  a word.  The data
          represented is then convert to a network.
<pre>
ex.    * --- A --- * --- T --- * --- 0 --- *
</pre>
          <li> Consider all possible sequences of letters  through
          the  network.   If  a  sequence creates a word which is
          represented in the lexicon, add an arc to  the  network
          representing the word.  The maximum characters per word
          is limited to the maximum word length in the lexicon.
<pre>
                     ,-------- TO -------.
                    /                     \
ex.    * --- A --- * --- T --- * --- 0 --- *
        \                     /
         `------- AT --------'
</pre>
          <li> DP Align the reference and hypothesis networks, and
          extract a minimal cost path.
	  </ol>
	  <p>
          The supplied "lexicon" must be a sorted  list  of  word
          records,  each  separated by a newline.  Only the first
          column, separated by whitespace, is read  in  and  used
          for  the  lexicon.   By  default,  the  algorithm  only
          separates hypothesis characters  that  are  GB  or  EUC
          encoded.   If  the  option  "ASCIITOO"  is  used, ASCII
          hypothesis words are also converted  to  characters  in
          step 2.
	  <p>Exclusive with -d.	  
	</ul><br>
    <a name="option_S_algo2_name_0">-S algo2 lexicon [ ASCIITOO ] </a>
   <ul>
          Perform a similar algorithm as described in '-S alog1' except
          the roles of the reference and hypothesis transcripts are reversed.
          In this algorithm, the segmentation of the hypothesis text is held
	  constant, while the reference transcript undergoes the process of 
          of coversion to characters and arcs added to the network for words
	  found in the lexicon.  Both "lexicon" and "ASCIITOO" have the same
	  usage as in algo1.  
	  <p>Exclusive with -d.	  
   </ul> <br>
    <a name="option_T_name_0">-T</a>
   <ul>
	  The '-T' option performs  time-mediated  string  alignments  rather  than  the  traditional  word alignments.
          Currently, only alignments involving  two  "ctm"  files
          can be aligned in this manner.  The <A HREF="sclite.htm#time-mediated"> main SCLITE</A>
	  page describes time-mediated alignments.
	<p>
        Options -F and -d are exlcusive.
   </ul> <br>
    <a name="option_w_name_0">-w wwl_file</a>
   <ul>

Define the word-weight list (WWL) file to be 'wwl_file'.  The WWL file 
defines an arbitrary weight for each word in the lexicon.  The weights are
used in two ways, first as a method to define word-to-word distances
for <A href="sclite.htm#weighted-word-scoring"> word-weight-mediated alignment </A>
and second to perform <A HREF="sclite.htm#word-weight-scoring"> 
weighted word scoring </A>.

<P> If the supplied WWL filename is "unity", then no file of weights is read in.
Instead, this is  a shorthand notation to use a weight of 1.0 for all words.

<P> Optionally deletable words get a default weight of 0.0, (even if "unity"
is supplied as the WWL filename).

<P> The format of the WWL file is as follows. <BR><BR>
<UL>

	    Comment lines begin with
	    double semi-colons.  The are two forms of "special" comment lines.  The
	    first defines heading labels each column in the table.  The format for this
	    line is: <br> <br>
		<UL> ;; 'Headings' '&ltCOL1&gt' '&ltCOL2&gt' '&ltCOL3&gt' .... </UL> <BR>
	    The label for column 1 should be "Word Spelling" since this column is the
	    word's text.  The labels for columns 2 though 10 are defined by the user.
	    <P>
	    The second "special" comment line defines the default weight applied to
	    out-of-vocabulary words if any exist.  The format for this line is:  <br> <br>
		<UL> ;; Default missing weight '&ltnumber&gt' </UL> <br>
	    'number' must be a floating point number. 
	    <P> 
	    The remainder of the file consists of word records, each word record separated by
	    a newline.  The format of each record is: <br> <br>
		<UL> &ltWORD_TEXT&gt &ltWEIGHT_1&gt &ltWEIGHT_2&gt . . . </UL> <br>
	    There should be no whitespace at the beginning if the line, and the word
	    texts can not include whitespace.  The remainder of the line are whitespace
	    separated floating point weights, up to a maximum of 10 weights can 
	    be assigned per word.
	    <P>
	    <B>NOTE: The current version of SCTK only utilizes the first weight.</B>
	</UL>	
   </ul> <br>
</ul>

<a name="output_options_0"><strong> Output Options: </strong></a>
<ul>
    <a name="option_f_name_0">-f level</a>
	<ul>
          As a well behaved program, reassure the user  that  the
          program is continuing to perform it's task by providing
          the user with  some  feedback.   The  feedback  levels,
          defined by this option are: 0) no feedback, 1) processing feedback (i.e.  status of text loading  and  alignments);   2)  processing  feedback  plus  printing  out
          aligned strings.  The feedback level defaults to  0  if
          no  output options are specified using the '-o' option,
          otherwise it defaults to 1.
	</ul>
<br>
    <a name="option_l_name_0">-l width</a>
	<ul>
          When printing the text alignments for the output option
          "pralign"   wrap   the  lines  at  "width"  characters.
          Default is 1000 characters.
	</ul>
<br>
    <a name="option_O_name_0">-O output_dir</a>
	<ul>
          Instead of writing the output files  to  the  directory
          containing the <hypfile>, write them into the directory
          "output_dir".  If the output directory does not  exist,
          all reports will be written to stdout.
	</ul>
<br>
    <a name="option_p_name_0">-p</a>
	<ul>
	  Write to standard out the resulting alignments so  they
          can  be piped to another sclite utility.  The format of
          the output is the same as '-o sgml'.  The options  sets
          the feedback level, with '-f' to 0.
	</ul>
</ul>

<a name="report_options_0"><strong> Scoring Report Options: </strong></a>

<ul>
   <a name="option_C_name_0">-C [ det | bhist | hist | none ] </a>
	<ul>
                Defines the output formats for analysis of confidence scores.
		Currently, the only way to assign confidence estimates to 
		each hyp word is through the <a href="infmts.htm#ctm_fmt_name_0">ctm</a> hypothesis file.
                Default: 'none'  
		<a href="outputs.htm#output_graphs_name_0"> Examples. </a>

	</ul>
<br>
    <a name="option_n_name_0">-n name</a>
	<ul>
	        Writes all outputs using 'name' as a root filename instead of
                'hypfile'.  For multiple hypothesis files, the root filename
                is 'name'.'hypfile'
	</ul>
<br>
    <a name="option_o_name_0">-o</a> [ sum | rsum | wws | pralign | all | sgml | stdout | lur | snt | spk | dtl | prf | none ]
	<ul>
          Defines the output scoring  reports  generated  by  the
          sclite.  The possible reports are:
	<br>
	<br>
	<dl>
	<dt> 
          sum -
	<dd>
               Produce a summary of speaker performance in  terms
               of  Percents:  Correct,  Substitutions, Deletions,
               Insertions, Word Errors and  Sentence  (or  Utterance)  errors.  System averages and speaker means,
               medians and standard deviations are  computed  for
               each  percentage.   If  the report is not going to
               stdout, the output is  placed  in  a  file  called
               "&lthypfile&gt.sys".   The  options  '-O'  and  '-n' can
               change the destination of the output file.
	  <a href="outputs.htm#outputs_sum_name_0">Example</a>
	<dt> 
          rsum -
	<dd>
               Produce a summary similar to 'sum'  except  output
               word counts instead of percentages.  If the report
               is not going to stdout, the output is placed in  a
               file  called  <hypfile>.raw.  The options '-O' and
               '-n' can change  the  destination  of  the  output
               file.
	  <a href="outputs.htm#outputs_rsum_name_0">Example</a>
	<dt> 
          wws -
	<dd>
               Produce a summary similar to 'sum'  except  output
               <A HREF="sclite.htm#weighted-word-scoring">weighted word error</A> instead of word error.  If the report
               is not going to stdout, the output is placed in  a
               file  called  <hypfile>.wws.  The options '-O' and
               '-n' can change  the  destination  of  the  output
               file.
	  <a href="outputs.htm#outputs_wws_name_0">Example</a>
	<dt> 
          pralign  - <br>
          pra  -
	<dd>
               Produce a text copy of all the string  alignments.
               If  the  report is not going to stdout, the output
               is placed in a  file  called  <hypfile>.pra.   The
               options  '-O'  and '-n' can change the destination
               of the output file.  "pralign" and "pra" are synonyms.
	  <a href="outputs.htm#outputs_pralign_name_0">Example</a>
	<dt> 
          prf  -
	<dd>
               Produce a text copy of all the string  alignments similar
	       to that produced by "pralign" except, include all relevant
	       information concerning the alignments.  That is, include
	       in the output things like: word beginning and ending times,
	       reference 
	       segment beginning and ending times, and hypothesis word 
	       confidence scores.
	  <a href="outputs.htm#outputs_prf_name_0">Example</a>
	<dt> 
          all -
	<dd>
               Produces  the  three   reports:   
		"<a href="outputs.htm#outputs_sum_name_0">sum</a>",
		"<a href="outputs.htm#outputs_rsum_name_0">rsum</a>", and
	        <a href="outputs.htm#outputs_pralign_name_0">pralign</a>"
	<dt> 
          stdout -
	<dd>
               Write all selected scoring reports to stdout.   If
               the feedback level is not specified using the '-f'
               option, the feedback level is set to 0.
	<dt> 
          sgml -
	<dd>
               Produce a dump of the text alignments in  an  sgml
               notation.  The output consists of tags at the system, speaker, and sentence level.   Text  information  is  only  present  at the sentence level and
               consists a comma separated  list  of  word  alignments.   The  word alignments can be either of the
               following: C:"word" or  I:"word"  or  D:"word"  or
               S:"word1","word2" for correct, insertion, deletion
               and substitution respectively.  If the  report  is
               not  going  to  stdout,  the output is placed in a
               file called <hypfile>.sgml.  The options '-O'  and
               '-n'  can  change  the  destination  of the output
               file.
	  <a href="outputs.htm#outputs_sgml_name_0">Example</a>
	<dt> 
          lur -
	<dd>
               Produce a Labeled  Utterance  Report  (LUR)  based
               information in the reference STM file. (Note: only
               reference  files  in  STM  format   support   this
               option.)   The  LUR report is a report which tabulates overall error rate statistics and statistics
               over arbitrary subsets of the reference data, e.g.
               speaker's  sex,  audio  characteristics.   If  the
               report  is  not  going  to  stdout,  the output is
               placed  in  a  file  called  <hypfile>.lur.    The
               options  '-O'  and '-n' can change the destination
               of the output file.
	  <a href="outputs.htm#outputs_lur_name_0">Example</a>
	<dt> 
          snt -
 	<dd>
              Produce   a   scoring   report   file   for    all
               utterance/segments  of  a  speaker.   Within  each
               file, one per speaker,  is  a  by-utterance  error
               analysis  which  contains: the aligned text, error
               classification percentages and  other  statistics.
               If  the  report is not going to stdout, the output
               is     placed      in      a      file      called
               <hypfile>.snt.<speaker_id>.   The options '-O' and
               '-n' can change the destination and  name  of  the
               output file.	 
	  <a href="outputs.htm#outputs_snt_name_0">Example</a>
	<dt> 
          spk -
	<dd>
               Produce a  scoring  report  file  summarizing  the
               errors  made  on the speaker's utterances.  Within
               each file, one per speaker id, is a  summarization
               of  utterance and word errors along with confusion
               pair,  insertion,   deletion,   substitution   and
               falsely recognized word lists.
                 If the report is not going to stdout, the output
               is      placed      in      a      file     called
               <hypfile>.spk.<speaker_id>.  The options '-O'  and
               '-n'  can  change  the destination and name of the
               output file.
	  <a href="outputs.htm#outputs_spk_name_0">Example</a>
	<dt> 
          dtl -
	<dd>
               Produce a scoring report in the same format as the
               "spk"  report  using  statistics gathered over the
               entire test set.  If the report is  not  going  to
               stdout,  the  output  is  placed  in a file called
               <hypfile>.dtl.  The  options  -'O'  and  '-n'  can
               change  the  destination  and  name  of the output
               file.
	  <a href="outputs.htm#outputs_dtl_name_0">Example</a>
	<dt> 
          none -
	<dd>
               Produce no output reports.
	</dl>
	<p>
          If this option is not specified,  the  default  options
          are  "sum"  and  "stdout".   If the user wishes to have
          reports other than "sum" to be written to stdout,  then
          the  "stdout"  flag  must be used in the argument list.
          Options that are duplicated, have the effect of nullification.   So  for  instance  using  the  options  "all
          pralign" is equivalent to "sum rsum".

                Defines the output reports. Default: 'sum stdout'
	</ul>
<br>
<ul>

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