CAJ | 학술논문

为了解决数据立方体完全物化占用过多存储空间的问题,以用户兴趣度为依据,从用户查询的实际情况出发,首次提出在矩阵基础之上进行冰山立方体构建的方法MICA,并在此基础上提出冰山立方体的增量式更新方法ICTU,以解决当用户兴趣发生改变时,需要物化的方体发生改变的问题.实验表明,MICC能够大大节省存储空间,有效支持用户查询,且利用增量方法ICIU能够使构建冰山立方体的效率大大提高.
위료해결수거립방체완전물화점용과다존저공간적문제,이용호흥취도위의거,종용호사순적실제정황출발,수차제출재구진기출지상진행빙산립방체구건적방법MICA,병재차기출상제출빙산립방체적증량식경신방법ICTU,이해결당용호흥취발생개변시,수요물화적방체발생개변적문제.실험표명,MICC능구대대절성존저공간,유효지지용호사순,차이용증량방법ICIU능구사구건빙산립방체적효솔대대제고.
This paper proposed a matrix-based iceberg construction method called MICC,in order to reduce the space Consumption during the full materialization for a data cube.Users' interests are considered as the standard to construct an iceberg cube.On the basis of the result of MICC,the paper proposed an incremental update method to dynamically update the iceberg cube while the users' interests are changing.An experiment proves the efficiency and accuracy of these two methods MICC and ICIU.