Kick off of Interdisciplinary Network Seminar
positions – may mean something, may mean nothing
questions: can spatial layout ever mean “nothing”? is it enough to say “be careful”? do we already know ho people would process spatial layouts, or does that need to be studied?
acyclic – no closed loops; ex. citation networks – a paper has to have been written before you can cite it, so you can’t go backwards in time, no loops
look at the data, notice something about it, turn it into a mathematical statement to manipulate it
Amazon network – http://www.orgnet.com/divided.html
social network = network of people
thought: not sure that’s enough to make something “social”
CAIDA – cooperative association for internet data analysis – http://www.caida.org/
disease – person with 100 contacts is 100×100 more likely to spread because they’re more likely to get it and to pass it on; averged squared degrees key
thoughts: maybe dissonance is about the characterization of connections; not all connections are the same; is there some way to characterize the edges to reflect those dissimilarities and differences in magnitude within the same diagram? when do what kinds of connections matter – something to ask in interviews
graph partitioning (from CS) vs. community structure (from SS and applied math) –
GP – specified number of groups; best answer whether or not it’s good question: what?
ComStructure – clustering doesn’t predetermine number or size of groups; natural lines; surprisingly few edges = interesting
Gavin: asked about research on understanding meaning in space
Mark: spring layout can be misleading, but maybe we can study meaning; eigenvectors of most important dimensions – axes are meaningful but tough to read by site
STIET guy: what about multimodal networks?
Mark: assortative mixing – are people more likely to make contacts with different or similar? assortative = link similar, disassortative = link different