BDRank:Ranking Objects in Birth Defect Monitoring Systems by Graph Theory
Changjie Tang · Jisuanji kexue yu tansuo · 2008
Due to the trend of rapid growth of birth defects in China, it is impractical to study all defect cases occurring in all cities. To balance the cost and the efficiency of research, it is essential to pick up the most important cities and the most typical birth defects before further investigations. A method called BDRank is proposed, to rank both birth defects and cities in which birth defects occur. Unlike PageRank, BDRank deals with multi-type systems which are composed of more than one type of objects. Further more, BDRank also takes advantage of knowledge from prior work of researchers. Experiments are conducted on real birth defect data in China from 1987 to 1989. The experimental results show an improvement in ranking accuracy over the naive method used by some birth defect researchers.