Corpus Encoding Tutorial:First Steps[Draft]Stefan Evert30 Jun 2002The CWB input format is one-word-per-line (more precisely, one token per line), with annotations givenas additional TAB-separated columns. XML tags must appear on separate lines.It PP itwas VBD bean DT anelephant NN elephant. SENT .Figure 1: le example.vrt create separate data directory for binary corpus data encode, i.e. convert to CWB binary format withcwb-encode -d /path/to/data -f example.vrt -R /path/to/registry/example-P pos -P lemma -S sThe rst column is automatically encoded as the default positional attribute (p-attribute) word. -P ags are used to declare additional p-attributes. -S ags declare structural attributes (s-attributes),which encode non-recursive XML tags and whose names must correspond to the XML element names. -Rautomatically creates a registry le , whose lename must be in lowercase. The CWB name of the corpusis identical to the name of the registry le, but is written in uppercase (here it will be EXAMPLE).Input les with the extension .gz are assumed to be in gzip format and are automatically uncompressed.Multiple input les can be speci ed by using the -f switch, and will be read in the order in which theyappear on the command line. Note that shell wildcards (e.g. -f *.txt) won’t work. Switches and optionsmust precede the ags used to declare attributes in the command line. create lexicon and index for p-attributescwb-makeall -V EXAMPLEThe -V ...
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