[R] Event sequence analysis
Hans W. Borchers
hwborchers at gmail.com
Tue Feb 3 09:54:36 CET 2009
Jean-Pierre Müller <jean-pierre.mueller <at> unil.ch> writes:
> Maybe TraMineR ? http://mephisto.unige.ch/traminer
Thanks for pointing out TraMineR; it is a very interesting package on
sequences of events and states in social science. Unfortunately, it
appears not provide the kind of windowing or counting of subsequences
that I was asking for.
Therefore, I am still looking for implementations of procedures for
event sequence analysis as provided in some data mining tools and
applications, see for example the article cited below.
Any help would be very much appreciated.
Thanks, Hans Werner Borchers
Le 2 févr. 09 à 13:31, Hans W. Borchers a écrit :
Dear R help,
I am analyzing sequences of events described by time and a unique event
tag. And I am searching for recurring patterns where patterns have to
show up in a certain time window, e.g. 5 or 10 minutes. Of course,
inbetween these events other events may occur.
I have applied basket analysis approaches like apriori or 'frequent item
set' algorithms with interesting results but these methods do not take
into account the exact succession of events. I also looked into the
'Generalized Sequential Pattern' function of Weka, but the
implementation in Weka does not allow for a time window (as far as I
Are there other sequence analysis implementations available in R? --
For instance in the realm of the 1997 paper "Discovery of frequent
episodes in event sequences" by H. Mannila et al.
Please no BioConductor hints as they are meaning something different
with (genetic) sequence analysis.
Very best, Hans Werner
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