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| import spark.util.Vector | |
| import scala.math.sqrt | |
| def cosineDist(a:Vector,b:Vector):Double = { | |
| if(a.length==b.length){ | |
| (a dot b)/(sqrt(a.squaredDist(Vector.zeros(a.length))*b.squaredDist(Vector.zeros(b.length)))) | |
| } |
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