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Extracting text from PostScript

/show { print } def

Findingstructureinmultiplestreamsofdataisanimportantproblem.Considerthestreamsofdataflowingfromarobot'ssensors,themonitorsinanintensivecareunit,orperiodicmeasurementsofvariousindicatorsofthehealthoftheeconomy.Thereisclearlyutilityindetermininghowcurrentandpastvaluesinthosestreamsarerelatedtofuturevalues


Figure 4.20a: Extracting text from PostScript; Printing all fragments rendered by show