时间感知组合的动态知识图谱补全

李忠良,陈麒,石琳,杨朝,邹先明

Dynamic knowledge graph completion of temporal aware combination

Zhongliang LI,Qi CHEN,Lin SHI,Chao YANG,Xianming ZOU

表 1 用于知识图谱的补全方法对比

Tab.1 Comparison of approaches for knowledge graph completion

补全方法 适用知识库 建模维度 时间特征 时间维度融合 相似性评价函数 TransE 三元组 s,r,o × × $ f\left( {s,r,o} \right) = \left\| {{{\boldsymbol{e}}_s}+{{\boldsymbol{e}}_r} - {{\boldsymbol{e}}_o}} \right\| $ DistMult 三元组 s,r,o × × $ f\left( {s,r,o} \right) = \left\langle {{{\boldsymbol{e}}_s},{{\boldsymbol{e}}_r},{{\boldsymbol{e}}_o}} \right\rangle $ ComplEx 三元组 s,r,o × × $ f\left( {s,r,o} \right) = {{\mathrm{Re}}} \left( {\langle {{\boldsymbol{e}}_s},{{\boldsymbol{w}}_r},{{\boldsymbol{e}}_o}\rangle } \right) $ ConvE 三元组 s,r,o × × $ f\left( {s,r,o} \right) = f({\mathrm{vec}}(f([{{\boldsymbol{\bar e}}_s};{{\boldsymbol{\bar r}}_r}] * {\boldsymbol{\varOmega}})){{\boldsymbol{W}}}){{\boldsymbol{e}}_o} $ ConvKB 三元组 s,r,o × × $ f\left( {s,r,o} \right) = {\text{concat}}(f([{{\boldsymbol{e}}_s},{{\boldsymbol{e}}_r},{{\boldsymbol{e}}_o}] * {\boldsymbol{\varOmega}} )) \cdot {\boldsymbol{w}} $ HyTE 四元组 s,r,o √ √ $ f\left( {s,r,o,t} \right) = \left\| {{P_t}({{\boldsymbol{e}}_s})+{P_t}({{\boldsymbol{e}}_r}) - {P_t}({{\boldsymbol{e}}_o})} \right\| $ TA-TransE 四元组 s,r,o √ √ $ f\left( {s,r,o,t} \right) = \left\| {{{\boldsymbol{e}}_s}+{{\boldsymbol{e}}_{{r_{{\mathrm{seq}}}}}} - {{\boldsymbol{e}}_o}} \right\| $ TA-DistMult 四元组 s,r,o √ √ $ f\left( {s,r,o,t} \right) = ({{\boldsymbol{e}}_s} \circ {{\boldsymbol{e}}_o}){{\boldsymbol{e}}_{{r_{{\mathrm{seq}}}}}}^{\text{T}} $ ST-ConvKB 四元组 s,r,o √ √ $ f\left( {s,r,o,t} \right) = {\text{concat}}(f([{{\boldsymbol{e}}_{{s_t}}},{{\boldsymbol{e}}_r},{{\boldsymbol{e}}_{{o_t}}}] * {\boldsymbol{\varOmega}} )) \cdot {\boldsymbol{w}} $ TTransE 四元组 s,r,o,t √ × $ f\left( {s,r,o,t} \right) = \left\| {{{\boldsymbol{e}}_s}+{{\boldsymbol{e}}_r}+{{\boldsymbol{e}}_t} - {{\boldsymbol{e}}_o}} \right\| $ TComplEx 四元组 s,r,o,t √ × $ f\left( {s,r,o,t} \right) = {{\mathrm{Re}}} (\langle {{\boldsymbol{e}}_s},{{\boldsymbol{w}}_r},{{\boldsymbol{e}}_o},{{\boldsymbol{w}}_t}\rangle ) $ RE-GCN[27] 四元组 s,r,o √ √ $ \vec p(o|s,r,{{\boldsymbol{H}}_t},{R_t}) = \sigma ({{\boldsymbol{H}}_t}{\text{ConvTransE}}({{\boldsymbol{e}}_{{s_t}}},{{\boldsymbol{e}}_{{r_t}}})) $ ATiSE 四元组 s,r,o √ √ $ f\left( {s,r,o,t} \right) = {D_{{\mathrm{KL}}}}({{\boldsymbol{P}}_{r,t}},{{\boldsymbol{P}}_{e,t}}) $ TeRo 四元组 s,r,o √ √ $ f\left( {s,r,o,t} \right) = ||{{\boldsymbol{e}}_{{s_t}}}+{{\boldsymbol{e}}_r} - \overline {{{\boldsymbol{e}}_{ot}}} || $