The background to IDA 2010 the 9th International Symposium on Intelligent DataAnalysis(IDA) is
ratherunusual. Previously thesymposiawereheldbi- nially at European venues. Over this time the
IDA Symposium had established an identity a dedicated group of Program Committee members and
a regular audience. However this success had come at a cost to the original ambitions for the
symposium concerned with interfacing AI statistics and computer science for important and
di?cult real-world data analysis problems being comp- mised in favor of more standard data
mining content. IDA 2010 was organized explicitly to re-align the IDA Symposia series with a
set of objectives evolved from the original ambitions. This should be construed not as a
criticism of r- tine data mining research but rather as an admission that the IDA symposium had
taken the path of least resistance with respect to the call for papers and the reviewing
process. This is the proceedings volume of IDA 2010 a special event held only a year after the
eighth symposium in an attempt to revitalize the area of IDA. There were two major changes
compared to previous symposia. First the Call for - pers (CfP) was completely rewritten
placing great emphasis on algorithms and systems thatsupportmodelling andanalysisofcomplex
real-worldsystems. - reover the CfP explicitly discouraged submissions that might be
characterized as incrementaladvances indata mining algorithms. Second the reviewing- chanism
was extended to include a senior ProgrammeCommittee in response to perceived shortcomings in
the existing reviewing process.
