tag:blogger.com,1999:blog-7660844861872909261.post2660929805412998760..comments2023-03-28T18:30:05.613-04:00Comments on Reaction Wheel: Venture Coinvestment MapJerry Neumannhttp://www.blogger.com/profile/11869373074132369401noreply@blogger.comBlogger16125tag:blogger.com,1999:blog-7660844861872909261.post-43149999644508040002011-09-28T03:27:59.548-04:002011-09-28T03:27:59.548-04:00Try running Kohonen self-organizing map to find hi...Try running Kohonen self-organizing map to find hidden patterns. <br />Alternatively subtractive clustering algo could do the same thing but less graphically that Kohonen.kirill1https://www.blogger.com/profile/11081661133928906546noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-68243717572994686982011-03-14T14:02:46.078-04:002011-03-14T14:02:46.078-04:00Jerry,
Thank you so much for publishing all this ...Jerry,<br /><br />Thank you so much for publishing all this amazing work! I would be most grateful if you could share with me the gephi file or the raw data.<br />You can find my email address on LinkedIn - happy to connect with you.<br /><br />Best,<br /><br />Niko BonatsosUnknownhttps://www.blogger.com/profile/02963834625197234253noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-92052654235150252162010-11-24T13:26:18.342-05:002010-11-24T13:26:18.342-05:00Jerry,
I just sent you an invite on linkedIn so w...Jerry,<br /><br />I just sent you an invite on linkedIn so we can discuss data transfer...<br /><br />Cheers,<br /><br />DavidDavid R. Pughhttps://www.blogger.com/profile/09032073870730301659noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-6489449516131931382010-11-24T13:19:45.687-05:002010-11-24T13:19:45.687-05:00David--
Let me know how to contact you and we can...David--<br /><br />Let me know how to contact you and we can discuss what fields you want, etc.Jerry Neumannhttps://www.blogger.com/profile/11869373074132369401noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-87761608002485910272010-11-24T03:35:09.926-05:002010-11-24T03:35:09.926-05:00Thanks for offering the data! What are my options...Thanks for offering the data! What are my options? I am comfortable using Python to work with large text files/.csv files etc. So if you could email me the data in a compressed folder of some kind I would be perfectly happy with that...<br /><br />Also, based on your post I checked out Gelphi...very nice!David R. Pughhttps://www.blogger.com/profile/09032073870730301659noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-54099281108151359582010-11-23T17:59:12.367-05:002010-11-23T17:59:12.367-05:00David,
Happy to share. Let me know what you want...David,<br /><br />Happy to share. Let me know what you want and how to get it to you. There's a lot more data than was represented in the graph posted.<br /><br />I believe I tried iGraph (python) a year or a bit more ago. Managed to overwhelm my puny little macbook pro because the graph was too big. That's why I was excited to find networkx, it's pretty lightweight, it seems. At least, it worked.Jerry Neumannhttps://www.blogger.com/profile/11869373074132369401noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-36204721375743819732010-11-23T14:23:33.588-05:002010-11-23T14:23:33.588-05:00Jerry,
I am a first year PhD student in economics...Jerry,<br /><br />I am a first year PhD student in economics and finance and am working on a research project on financial networks and am looking for data sources...so I would definitely be interested in the data! <br /><br />I am also a Python newbie, and have found it to be both incredibly useful and fun to play around with...I am very much interested in improving my Python data analysis and visualization skills.<br /><br />btw, I assume that you have encountered iGraph tools for network visualization/analysis before?David R. Pughhttps://www.blogger.com/profile/09032073870730301659noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-87333793205147658282010-11-18T12:00:31.487-05:002010-11-18T12:00:31.487-05:00Funny Sebastien was here first :). I'm linkflu...Funny Sebastien was here first :). I'm linkfluence cofounder and we would be interested to work with you on this dataset and may be publish an interactive version of it (like on this map : http://maps.linkfluence.net/blogopole/2009/). <br /><br />Guilhem Fouetillou (contact me on linkedin if you want)Guilhem Fouetillouhttps://www.blogger.com/profile/07765211996699894522noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-42062022484234805622010-11-17T17:49:16.780-05:002010-11-17T17:49:16.780-05:00Thanks Sebastian, I'll check them out.Thanks Sebastian, I'll check them out.Jerry Neumannhttps://www.blogger.com/profile/11869373074132369401noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-77719255221054537372010-11-17T14:50:15.597-05:002010-11-17T14:50:15.597-05:00Hi,
Thanks for using Gephi, your graph is pretty ...Hi,<br /><br />Thanks for using Gephi, your graph is pretty cool :)<br /><br />To get an online interactive map, I advise you to contact Alexis Jacomy who develops <a href="http://ofnodesandedges.com/sigma-dragndrop-and-zoom-now-available/" rel="nofollow">SiGMa</a>, a Flash visualizer of GEXF file formats (the Gephi exportable graphs):<br /><br /><br />You may even contact <a href="http://us.linkfluence.net/insights-2-0/atlas/" rel="nofollow">Linkfluence</a> to negotiate the use of their online graph visualizer (they are sometimes open to such initiatives).<br /><br />Explanatory power: take a look at the online studies made by the Gephi community <a href="http://forum.gephi.org/viewtopic.php?f=7&t=162" rel="nofollow">here</a>!Sebastien Heymannhttp://gephi.orgnoreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-13904593400869457342010-11-17T14:11:16.465-05:002010-11-17T14:11:16.465-05:00Sachin,
A mysql data dump won't work... the c...Sachin,<br /><br />A mysql data dump won't work... the connections aren't there. Contact me (linkedin) and we can chat.Jerry Neumannhttps://www.blogger.com/profile/11869373074132369401noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-67611549528926664162010-11-17T13:50:38.034-05:002010-11-17T13:50:38.034-05:00Hi Jerry - The data visualization you and Brent pu...Hi Jerry - The data visualization you and Brent put together is kind of what I was envisioning. I had not seen that before. A MySQL data dump would work fine. Would like to play around with it with some visualization tools.Sachinhttp://adelement.comnoreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-65726806621519667202010-11-17T10:54:34.741-05:002010-11-17T10:54:34.741-05:00Extantproject--Thanks, will check it out. The mai...Extantproject--Thanks, will check it out. The main thing I would have liked in a visualization program would be a way to have it be able to export to a format that's interactive (beyond drag and zoom) in the browser. Seadragon is pretty cool and it looks like it might be extensible to do that (not by me, though...) Does Cytoscape have that capability or is it moving in that direction. Some of the stuff they're doing at Malariapedia (http://mbw.molgen.mpg.de) is amazing. Want.<br /><br />Sachin--<br /><br />Would be pretty easy to generate from the database I now have if given a list of companies to filter by. Not sure how much info it would give you, though. It would also be pretty easy to generate with both investors and companies, but it would probably be somewhat similar to my previous foray into data visualization, the chart Brent Halliburton put together with data I generated (here: http://www.adexchanger.com/venture-capital/ad-technology-funding/ ). Happy to share data (the raw data is in a mysql database so if you let me know what format you want it in, it would be pretty easy to generate), or re-run either way if you have a list of companies.<br /><br />Also, to anyone: as I look at the visualization, I wish it had more explanatory power. If there's anyone out there who actually knows what they're doing with this sort of thing (this is my first go), I'd be happy to give you data, generate data, whatever. I think that the social network of investors is an important factor in what gets funded and what does not... maybe there's something to be gleaned from it.<br /><br />JerryJerry Neumannhttps://www.blogger.com/profile/11869373074132369401noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-81515483478309761532010-11-17T08:30:04.111-05:002010-11-17T08:30:04.111-05:00Would be cool to see what this looks like for the ...Would be cool to see what this looks like for the ad tech world. Does the data classify the type of investments? Would love to play with it if it does.Sachinhttp://adelement.comnoreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-80915535164853321952010-11-17T05:59:29.778-05:002010-11-17T05:59:29.778-05:00this, friend, is how you bridge the gap.this, friend, is how you bridge the gap.5016.2406.7890noreply@blogger.comtag:blogger.com,1999:blog-7660844861872909261.post-59968102028938346822010-11-17T02:17:22.330-05:002010-11-17T02:17:22.330-05:00You might find Cytoscape (http://www.cytoscape.org...You might find Cytoscape (http://www.cytoscape.org) to be a better network graph tool.extantprojecthttp://twitter.com/extantprojectnoreply@blogger.com