.NET下文本相似度算法余弦定理和SimHash浅析及应用实例分析

                    return 0F;               
                else               
                    return (InnerProduct(vector1, vector2) / denom);
               
            }
 
            public static float InnerProduct(float[] vector1, float[] vector2)
            {
           
                if (vector1.Length != vector2.Length)
                    throw new Exception("DIFFER LENGTH ARE NOT ALLOWED");
               
           
                float result=0F;
                for (int i=0; i < vector1.Length; i++)               
                    result += vector1[i] * vector2[i];
               
                return result;
            }
       
            public static float VectorLength(float[] vector)
            {           
                float sum=0.0F;
                for (int i=0; i < vector.Length; i++)               
                    sum=sum + (vector[i] * vector[i]);