Changes between WordNet 1.6 and WordNet 1.7.1

GENERAL

	The DOS platform is no longer supported.

DATABASE CHANGES

	Removed "marked" adjectives (were noted with "(m)" after word)

	index.sense (sense.idx on Windows) file no longer has
	adjective modifiers - ("(p)", "(a)", "(ip)") after word in
	sense key.

	Synsets in 1.7.1 are located at byte offsets that are unique
	to 1.7.1, and do not map directly to 1.6 byte offsets.  The
	Sense Map package contains a mapping of 1.6 to 1.7.1 senses
	and synsets.

	The ordering of senses is different.  What was "Sense 1" of a
	word in 1.6 will not necessarily be "Sense 1" in version
	1.7.1.  The Sense Map package contains a mapping of 1.6 to
	1.7.1 senses.

	Naturally, lots of new words and senses have been added, and
	some word senses rearranged.  Redundant senses that were
	detected were removed.

LEXICOGRAPHER FILES CHANGES

(Note - the lexicographer source files are not included in the
standard Database Package. They are in the "grind" package that can
be downloaded on request.)

	Removed "marked" adjectives (were noted with "(m)" after word)

	In preparation for WordNet 2, we have started to enter some
	links between nouns and verbs.  These links are present in the
	lexicographer files, however the links are not present in the
	WordNet 1.7.1 database.  All of these links are represented as
	"+" followed by a single, lower-case letter a-x.  These should
	be ignored.

SEARCH CHANGES

        Added "Coordinate Terms" search for verbs.

        Print number of times each sense is tagged (in our corpus of
        semantically tagged texts) on "Overview".

        Removed "Grouped by similarity" search for nouns.

        Changed holonym/meronym search to properly inherit parts.


WNB CHANGES

        Added automatic line wrapping on output buffer.

	Button-2 click (middle mouse button) now has same effect as
	shift-click.  When button-2 is clicked on a word in the search
	results buffer, that word becomes the new search word, and an
	"Overview" search is automatically performed.

	Adjective search relabeled "Synonyms/Related Nouns"

	Adverb search relabeled "Synonyms/Root Adjectives"

	Command "wnb arg" uses 'arg' as search word and automatically
	performs "Overview" search on 'arg' when it starts up.

DOCUMENTATION CHANGES

	The content of the documentation (Unix-style "man pages") has
	been updated to reflect changes in 1.7.1.  The "man" directory
	contains the "man page" sources of the documentation.  The
	"man pages" are also included in PDF, PostScript, and HTML
	formats in the "doc" directory.

USING 1.7.1 DATABASE WITH 1.6 SOFTWARE

        In general, the 1.7.1 database can be substitued for the 1.6
        database, as there are no changes to the file format.  This
        has been tested with the 1.7.1 command line interface, but not
        with the graphical interface, due to Tcl/Tk differences
        between the versions.  But with a little work, the 1.6 'wnb'
        command should also work with the 1.7.1 database.

	The 1.7.1 database does not use the files "cousin.tops" and
	"cousin.exc", however the 1.6 library expects these files to
	exist.  If you want to use the 1.7.1 database with any code
	compiled with the 1.6 library (libwn.a or wn.lib), then you
	must create the files "cousin.tops" and "cousin.exc" in the
	same directory in which the database files exist (the Unix
	default location is "/usr/local/WordNet-1.7.1/dict", Windows
	it's "C:\WordNet 1.7.1\dict").  The files don't need to have
	anything in them, so on Unix systems, for example, the "touch
	cousin.tops cousin.exc" command will do the trick.
