[HELP] Visualisation of Collocations

[chau chi]

Dear Dr Anthony,

I am currently working on my project on extracting several types of collocations from a textbook series. Then, I calculated AMs for these collocations and extract only the most statistically salient collocations.

My question is whether I can use dendrograms to illustrate the relationships between the entries. The variables are (1) collocations (2) AMs scores.

Thank you for spending time answering my question.

Best regards,

Chi Cuong Chau.

[Laurence Anthony]

Hi,

Yes, you can certainly use dendrograms to visualize the connections. If you get good results, do let me know. I've been thinking of adding such a feature in AntConc.

Laurence.

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Laurence ANTHONY, Ph.D.
Professor of Applied Linguistics
Faculty of Science and Engineering
Waseda University
3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
E-mail: antho...@gmail.com
WWW: http://www.laurenceanthony.net/
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[chau chi]

Dear Prof Anthony and group members,

Below are some of my results when visualising collocations and their Association Measures using dendrograms. The first one is a dendrogram on Verb-Noun collocations (It's a bit long, so I have split it up into two figures). The third figure is a dendrogram on Adv-Verb collocations.

I hope you can give me some insights on these graphs, what they tell for example.

I also hope AntConc will have this feature soon.

Best regards,

Chau Cuong Chi 
chaucu...@gmail.com / 0707737757

HCM City University of Education 

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[Laurence Anthony]

Hi Chau,

These graphs are certainly interesting, but I'm not sure how to interpret them. I was actually thinking that you would create dendrograms for a single search word, plotting all the collocates and their subsequent collocates. So, the dendrogram would start with a single node (the search word) and all the collocates would grow from that, with the distances indicating the strength of the collocation. I think that would make for a very interesting and easy to understand visualization.

So, it would look a little bit like below (from Wikipedia):

Regards,

Laurence.

###############################################################
Laurence ANTHONY, Ph.D.
Professor of Applied Linguistics
Faculty of Science and Engineering
Waseda University
3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
E-mail: antho...@gmail.com
WWW: http://www.laurenceanthony.net/
###############################################################

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[chau chi]

Dear Prof Anthony,

Thank you for your suggestions. I have also drawn a graph to show relationships between four Association Measures of Verb-Noun collocations. Is it too much? I mean, should I eliminate Log-Dice?

I also want to ask you whether I can use the Wilcoxon Signed-rank test to see whether the number of collocations before and after refinement changes statistically significantly.

Thank you for your time to answer my questions

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[Laurence Anthony]

Log-Dice is a common measure, so I would probably keep it.

As for using the Wilcoxon Signed-rank test, yes, you could certainly use this to see if the number of collocations changes significantly.

Laurence.

###############################################################
Laurence ANTHONY, Ph.D.
Professor of Applied Linguistics
Faculty of Science and Engineering
Waseda University
3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
E-mail: antho...@gmail.com
WWW: http://www.laurenceanthony.net/
###############################################################

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