Nicholas Carletta Mentors: William Gallus, Michael Fowle, and Daniel Miller.
NXT meets the ICSI Corpus Jean Carletta and Jonathan Kilgour University of Edinburgh HCRC Language...
-
Upload
paula-stanley -
Category
Documents
-
view
213 -
download
0
Transcript of NXT meets the ICSI Corpus Jean Carletta and Jonathan Kilgour University of Edinburgh HCRC Language...
NXT meets the ICSI Corpus
Jean Carletta and Jonathan Kilgour
University of Edinburgh
HCRC Language Technology Group
ICSI Meeting Corpus
• 75 natural meetings from research groups– close-talking and far-field microphones
• orthographic transcription
• "speech quality" tags (e.g., emphasis)
• dialogue acts using MRDA
• hot spots
The NITE XML Toolkit
• library support for data handling and search using a data model that can express both timing and complex structure
• multiple file stand-off XML data storage
• some standard GUIs, data utilities
• library support for writing tailored GUIs
extract from Bdb001.A.words.xml
<w nite:id="Bdb001.w.1,342" starttime="356.39" endtime="" c="W">time</w> <w nite:id="Bdb001.w.1,343" starttime="" endtime="" c="HYPH">-</w> <w nite:id="Bdb001.w.1,344" starttime="" endtime="356.59" c="W">line</w>
extract from Bdb001.A.speech-quality.xml<speechquality nite:id="Bdb001.emphasis.16" type="emphasis"> <nite:child href="Bdb001.A.words.xml#id(Bdb001.w.1,342)..id(Bdb001.w.1,344)" /> </speechquality>
Stand-off XML
Tasks
• pre-NXT: up-translation and tokenization
• hand annotation (topic segmentation, dialogue acts, extractive summaries, ...)
• automatic annotation/indexing by query match
Queries in NXT
($a w):(TEXT($a) ~ /th.*/)::($s speechquality):($s ^ $a) && ($s@type="emphasis")
• Find instances of words starting with “th”• For each find instances of speech quality tags of
type "emphasis" that dominate the word• Discard words that are not dominated by at least one
such tagUse queries to understand data, verify quality, index.
NXT as Meeting Browser
• Browser = display + signal indexing +
search
• NXT data displays:– synchronize with signal– highlight search results
Issues
• Already can't load all the ICSI data at once on some machines
• NXT supports display of one meeting at a time but browsing may be over several meetings
• Really complicated queries are often too slow for browser response times
Key: Pre-indexing of query results, tailored data builds