I've made a rough version of a TouchGraph browser for Google Scholar. Use this ->GraphScholar<- bookmarklet to launch it from any 'Cited By' page on Google Scholar - like this example page, or a direct link to the graph if you just want to see how it works.
Double clicking on any of the nodes will load a new set of papers which cited the selected paper - in other words, opening up new nodes moves forward in time through citations.
Clicking on the 'info' box will open a window with a link back to Google Scholar, from where you can get to the full text.
This is where I rant again about closed citation databases - Google's Scholar, Elsevier's Scopus, ISI's Web of Science, NEC's CiteSeer and CiteBase all duplicating the same work and (with the exception of CiteBase, which is only experimental) not making it available for other people to work with. I was at an ISI presentation the other day, and an audience member asked whether there would be any visualisation tools available for the Web of Science. The presenter said something like, perhaps, in a couple of years, maybe - but there must be hundreds of people working on visualisation who could do it tomorrow if they had access to the data.
There may be better tools for citation visualisation that can present the concept of a linear timeline, such as prefuse, JUNG or SpaceTree (again, if they had access to the data). Similarly, it would be very useful to be able to work backwards through the citations, from a new article to a classic original, but there's no way to do that with Google Scholar yet.
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CiteSeer's metadata is now freely available. Just
come and download it. You can find it at:
http://citeseer.ist.psu.edu/oai.html
Best
Lee Giles
Excellent! Thanks, Lee.
Couldn´t be done the same with Amazon API?
http://www.sybex.com/sybexbooks.nsf/booklist/4307
Would be great to know client behaviour and social relations from "Customers who bought this item also bought these items", kinda other socially constructed classification schemes, such as "folksonomy" idea: http://atomiq.org/archives/2004/08/folksonomy_social_classification.html
Thank you anyway. Great tool!
Jorge Serrano
Jorge, here's a TouchGraph browser for Amazon 'Customers who also bought this item...' connections: http://www.pmbrowser.info/amazon.html
Aaaaah, whoaaah, thank you! I was sure, it had to be done.
Great for classifiers, vendors and librarians!
Jorge
I can't figure out how to make this work.
I thought "bookmarklets" were little Java scripts that you click and drag to your Links toolbar. I tried that, but it didn't work. Also, couldn't copy and paste it into a bookmark.
Unless you can get it into your Favorites, how can you click on it? When you get to the "Cited By" page, the bookmarklet is back here on this page.
What is the "Cited By" page? Is it the Google page that lists "Cited By" for each reference? I couldn't find a page that was headed "Cited By."
This looks like a marvy app, but I couldn't figure it out. Sorry to be so dumb.
Steve
Steve: You're right, you should be able to drag the bookmarklet into your toolbar. Once you've got it there, search Google Scholar for the paper you're interested in, then click the 'Cited By' link attached to the search result.
On the resulting page, which will list all the papers that have cited your paper, press the bookmarklet in your toolbar. The TouchGraph applet will then read in that page and display all the citations as nodes surrounding your paper in the centre. You can double-click on the nodes to expand the graph further.
Feel free to email if you need any more help.
readers of this thread might also be interested in something
i just finished up comparing googleScholar data with ISI's:
> # Scientific impact quantity and quality:
> Analysis of two sources of bibliographic data
> http://www.cogsci.ucsd.edu/~rik/papers/belew05-iqq.pdf
> also arXiv.org preprint arXiv:cs.IR/0504046, 11 Apr 05
rik belew
--
Richard K. Belew
rik@cogsci.ucsd.edu
http://www.cogsci.ucsd.edu/~rik
Professor and Chair
Cognitive Science Dept.
Univ. California -- San Diego
9500 Gilman Dr. (0515)
La Jolla CA 92093-0515 USA
I had problems running this with Java 1.5 installed. The brower applet appeared then disappeared and locked up the browser (both in firefox and IE6). Running with Java 1.3.1 on another machine it worked however. Thanks!
I'm trying to create an application which uses the data from google Scholar. I know the google API doesn't work with google Scholar so i'm screen scraping.
Scholar can profile bibtex (or other form) of each article. At the moment thats what i'm using to extract the data. Becuase the bibtex is much more complete, its not truncated.
However that means i have to access google for each article in the search page.
I was wondering how you extracted the data from google scholar for your TouchGraph.
Please let me know, if possible please email me.
Thank you.
I also have difficulty in applying this bookmarklet, each time it says:"NO ID found----this bookmarklet only works on a google scholar 'cited by' page.
but i have followed the instruction above.
so what i can do, please help me....thanks a millons
celina: the bookmarklet works fine on the example page linked from the post above. The TouchGraph isn't loading any data at the moment though, so the page scraping must be broken.
I'm not sure if this is still activated, but I encounter the same problem with celina's.
I don't know well about javascripts, but by the look of the code,
var re=/link:(.*?):scholar.google.com/i;
seems to check whether the regular expression between slashes(/) are included.
while on the example page this is true:
http://scholar.google.com/scholar?q=link:E2oZX-BTzjwJ:scholar.google.com/
but I'm not sure if this is always that way. Searching for a paper, I clicked the 'Cited by ###' link, and the new page turned out to be like this:
http://scholar.google.com/scholar?hl=en&lr=&cites=13834212388368910295
There. no "link:" things.
It does seem to operate when I modify the javascript (the if statement if for validity check anyway), but it's a pity that the service itself doesn't seem to work anymore. Any reasons?
It depends on being able to scrape the Google Scholar pages, so is fragile and breaks often. I probably won't be fixing it soon, as it's not really that useful - more of a demonstration.
The "id" used by the bookmarklet looks a
lot like those in the BibTex entry page.
It might work if you copy and paste the
link with the correct id to the address
bar.
However, I have other problems with this
application:
Even though I can run touchgraphs from the
touchgraph site, the example page here does
not work for me. I was using 1.5 and upgraded
to 1.6 to see if it would fix the problem,
but no go. Is the php script still working?
I think the example is no longer working.
I really like this concept.. a pity it is broken.
Could you post the source code?
BR
/Marc
The TouchGraph code used here isn't open source, sadly. There are alternatives though - see the Prefuse, Flare and Jung graphing libraries.