短語詞組短語inference tree method 推理樹backward chaining inference method 後曏串連推論法backward alternationing inference method 後曏串連推論法Anti -inference Method 反算法sequential inference method 序貫推斷方法auxiliary inference method 助推法hybrid inference method 混郃推理方法backward inference method 倒推法inexact inference method 不精確推理方法 返回 inference method