web-based concordancer to learn usage of english expressions takashi yamanoue kyushu institute of...
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Web-Based Concordancer to Learn Usage of English Expressions
Takashi Yamanoue Kyushu Institute of Technology, JapanToshiro Minami Kyushu Institute of Information Sciences &
Kyushu University, JapanIan Ruxton Kyushu Institute of Technology, Japan
ICITA2002@Bathurst (02.11.25-28)
Contents
Motivation System Design and Implementation Examples and Experiments for
Evaluation Related Work Concluding Remarks
Difficulties in writing in English
Is it really used??
?
•Spelling → spell checker•Grammar → grammar checker•Usage → ?
Motivation
Help for Usage
Corpus linguistics Time-consuming Needs hard work in order to make a good
corpus Copyright problem
(often) Outdated from the beginning Tools are mainly for experts
Difficult to use for ordinary learners
A Solution
Use of “Web-Corpus”= Using Web Documents as a Corpus
Maintenance free: Exists as it is Always new, reflects current status of
languagesA lot of applications/services are available on
the Internet
System Design and Implementation( WebLEAP )
Features
With WebLEAP(Web Language Evaluation Assistant Program) , we can get some information for: comparing expressions, deciding if the expression is right or wrong, and finding out wrong parts.
System Organization
WebLEAP
See/watch the TV/movie
“the TV” “see the TV” “watch the TV”
216,107 873* 1,593
“the movie” “see the movie” “watch the movie”
472,776 13,638 6,666*
common.
Not common
Examples and Experiments for Evaluation
ExperimentsPerson’s Name
Place Names
“Bertrand Russell” “Burtrand Russell”
12,575 3
Not only for Historical names
“Jenolan caves” “Genolan caves”
992 2
Choose one phrase or word that should be corrected.
Successful : 13/20 Insufficient information: 2/20Failure: 5/20
TOEIC(Test of English for International Communication)
Only 9.4% of the testees gave the correct answer
Successful Example:
Failure Example:
Comparison with others
WebLEAP detects 13(+2) /20Checker1 detects 7 /20Checker2 detects 4 /20WebLEAP shows not only places but also pop
ularity(degree).
WebLEAP Experimental Class11 studentsWriting essays for 30 min.
2 classes with same membersCompare the numbers of errors
Results
StudentEssay1 Essay2
errors words density errors words density
1 5 53 9% 4 48 8% ↓
2 9 43 21% 6 32 19% ↓
3 5 31 16% 4 36 11% ↓
4 4 34 12% 7 33 21%
5 5 34 15% 6 42 14% ↓
6 5 34 15% 4 39 10% ↓
7 5 39 13% 8 40 20%
8 6 54 11% 1 11 9% ↓
9 3 35 9% 3 40 8% ↓
10 4 34 12% 5 32 16%
11 4 33 12% 7 32 22%
Evaluation
More than half of the students got the decrease of the error densities.
(Current) WebLEAP is not good enough for beginners of English.
Thus for most of them are in the “TGR(Teachers Guidance Recommended)” level.
All the students enjoyed using WebLEAP. WebLEAP makes us think and interpret the expressio
ns we use. → Educational Effect
Satoh’s system… WWW, KWICWordSmith Tools…for expertsTXTANA … for expertsSARA…for research purposeSUIKO…detect wrong sentences The Writer’s Assistant…idea organizer
Related Work
Sato’s System: Input
Sato’s System: Results
WebLEAP: is a tool for helping with writing. gives us information To know, is it really used? is not for beginners.
Need skill to interpret the given results. is such a system that users are excited about us
ing it.
Concluding Remarks
Integrate with Web-based and other types of services
Monitor user’s behavior and get tips for improvement
Assist collaborative writing
Further Research Topics
Thank you for Listening!