Microsoft PowerPoint - Time_Series.pptSimilarity Search on Time Series Data Presented by Zhe Wang Motivations z Fast searching for time-series of real numbers. (“data mining”) z Scientific database: weather, geological, astrophysics, etc. “find past days in which solar wind showed similar pattern to today’s” z Financial, marketing time series: “Find past sales patterns that resemble last month” Real motivation? Difficulties for time-s
