CAJ | 학술논문

为了更好的处理运用D-S证据理论时出现高度冲突证据的情况，提出了一种基于广义Jaccard系数的加权组合方法。该方法利用广义的Jaccard系数公式求出各个证据体的权值，提高相近识别结果的证据体支持度；然后对证据体的权值归一化处理、加权平均，减少算法的复杂度；最后利用标准的D-S合成规则进行多次信息融合，进一步减小冲突证据的影响，从而给出符合实际的辨识结论。详细介绍了该方法的理论推导过程和具体计算步骤。实际案例计算表明：该方法相较于其他改进方法，在处理不相关性冲突证据方面更具有简单性、实用性以及高效性。
위료경호적처리운용D-S증거이론시출현고도충돌증거적정황，제출료일충기우엄의Jaccard계수적가권조합방법。해방법이용엄의적Jaccard계수공식구출각개증거체적권치，제고상근식별결과적증거체지지도；연후대증거체적권치귀일화처리、가권평균，감소산법적복잡도；최후이용표준적D-S합성규칙진행다차신식융합，진일보감소충돌증거적영향，종이급출부합실제적변식결론。상세개소료해방법적이론추도과정화구체계산보취。실제안례계산표명：해방법상교우기타개진방법，재처리불상관성충돌증거방면경구유간단성、실용성이급고효성。
A weighted combination method based on generalized Jaccard coefficient was proposed to deal with highly conflicting evidence in D-S evidence theory. Generalized Jaccard coefficient formula is used to calculate each weight of evidence unions for increasing support of similar evidence. Then, the value of evidence unions is normalized and averaged to reduce the complexity of algorithm. Finally, in order to give the identification conclusion in accordance with the actual situation, the standard D-S combination rules are used times to achieve information fusion which could further reduce the influence of conflicting evidence. The calculation steps and theoretical derivation of the method are introduced in detail. And the result that the method compared with other improved is more simple, practical and efficient in dealing with uncorrelated conflicting evidence.