[news.config] A map of news propagation

jbuck@epimass.EPI.COM (Joe Buck) (06/29/88)

I collected a little over 50,800 news paths from May 31 until now,
and, with some help from Gnu Emacs picture-mode and a perl program,
here is a map showing all connections that appear in 500 or more
articles.  I managed to complete all the lines except the one from
uwvax to husc6, hence the (HUSC6) at the top.

Backbone sites are shown in capital letters.  If someone else in the
Bay Area were to make this map, it would look almost the same except
for sites epimass, csi, and nsc, which only have a relatively local
effect.  It was hard to draw "ames"; 16 different sites are shown
connected to it, making it the busiest mixing bowl for news.

It's also interesting to discover that almost all news from Europe
reaches the Bay Area via the path

mcvax!uunet!seismo!sundc!pitstop!sun!decwrl

which is not what one would expect from Spaf's map.  


  +----------------------------------------------------------------+
  |								   | 
  |steinmetz  bingvaxu--sunybcs  oddjob---uwvax---(HUSC6)          |    
  |     |       |        |         |   	       			   |
  |   itsgw--leah       boulder---NCAR---------------------------GATECH--udel  
  |    	     |          	  |    	       	       		  |        | 
  |          | mipos3--intelca    | mimsy                 	  |        |   
  |          |             |      |  |                    	  | 	   |   
  | +--------)-------------)------)umd5---uflorida        	  | 	   |   
  | |        |             |      ||                      	  | 	   |   
  | |        |             |      ||lll-tis--helios.ee.lbl.gov    | 	   |   
  | |        |             |      |||  	                          | 	   |   
  | |        |   epimass--oliveb- |||ll-xn---MIT-EDDIE        mandrill     |   
  | |        |    |   |  / |     \||||             | |            |	   |   
  | |        | 	 csi  |	 | AMDAHL|||||   tness7    |bloom-beacon  |	   |   
  | |        |    |   |	 |    | ||||||    |        |     |       / 	   |   
  | |        |    |   |	 |    | |||||| killer------)-----)------)-----+	   |   
  | |        |    |   |	 |    | \\||||/            |     |      |     |    |   
  | |        |  nsc--pyramid--)---AMES----mailrus--)---OHIO-STATE--osu-cis |   
  | |        |       | |  |   |	//||||\\  |    	|  |     |       \  |	   |   
  | |        |necntc-)-)--)---)/ |||||| \-)-eos	|  |     |        | |	   |   
  | |        |       | |  |   |  |||||\   |    	|  |     |        | |	   |   
  | |        |      /  |  |pacbell|||| HUSC6-+ 	|  | cs.texas.edu | |  	   |   
  | |        |     /   |  |    |  ||||       | 	|  |     |	  | | 	   |   
  | |        |     |   | prls  |  |||nrl-cmf |  |  |  ut-sally	  | | 	   |   
  | |        |     |   |  |    |  |||   |    |  |  |		  | | 	   |   
  | |        |     |   |  |    +--)))---)----)--)--)--------------(-ATT	   |   
  | |        |     |   |  |       |||   |    |  |  |		  | | \    |   
  | |        |     |   |  |       ||| CMCL2  |  |  |		  | |ihnp4 |   
  | |        |     |   |  |       |||        |  |  |		  | |      |   
  | |        |     |   |PHILABS   ||UCSD-----)--)--)--ucsdhub 	  | |      |   
  | |        |     |   |          || |       |  |  |              | |      |   
  | |        +-----)---)----------))-)uwmcsd1|  |  |              | |      |   
  | |              |   |          || |   |  ||  |  |              | |      |   
  | |     hp-sdd   |   |       +--))-+   ig ||  |  |		  | |      |   
  | |           \  |   |       |  ||     |  ||  |  | TEKTRONIX    | |      |   
  | |    hpda---HPLABS-)--\    |  |elroy |  ||  |  |    |         | |      |   
  | |            |  \  |   \   |  |      |  ||  | uw-beaver       | |      |   
  | |        sdcrdcf \ |    \  | pasteur |  ||  |     |		  | |      | 
  | |                 ||     \ |  |  \	 |  ||  |   cornell       | |      | 
PURDUE----------------DECWRL--UCBVAX--agate ||  |     |  |        | |      | 
  |                  / 	|  \          /	    bbn |     |batcomputer| |      | 
i.cc.purdue    DECVAX  sun  labrea---/        | |     |           | |      | 
  |                     |       |             | |     |           | |      | 
j.cc.purdue          pitstop    |             | |     |		  | |      | 
  |                 /           |      	      | |     |           | |      | 
pur-ee         sundc  BELLCORE--RUTGERS-------)-+     |           | |      | 
  |              |      |   	|    \ \      |       |           | |      | 
uiucdcs       seismo  faline  mtunx-\ \ \-----rochester-----------)-)------+ 
	        |      |   	|    \ ---------)-----------------+ |        
    portal---UUNET    thumper whuts   \---------)-------------------+        
	       |        |      	|      	        |                            
     UKC----MCVAX   ULYSSES   homxb          pt.cs.cmu.edu                   
								    
-- 
- Joe Buck  {uunet,ucbvax,pyramid,<smart-site>}!epimass.epi.com!jbuck
jbuck@epimass.epi.com	Old Arpa mailers: jbuck%epimass.epi.com@uunet.uu.net
	If you leave your fate in the hands of the gods, don't be 
	surprised if they have a few grins at your expense.	- Tom Robbins