“…There are kinds of sentiment analysis tasks, such as documentlevel (Thongtan and Phienthrakul, 2019), sentence-level 4 , aspect-level (Pontiki et al, 2014;Wang et al, 2019a) and multimodal (Chen et al, 2018;Akhtar et al, 2019) sentiment analysis. For the aspect-level sentiment analysis, previous work typically apply attention mechanism (Luong et al, 2015) combining with memory network (Weston et al, 2014) or gating units to solve this task (Tang et al, 2016b;He et al, 2018a;Xue and Li, 2018;Duan et al, 2018;Tang et al, 2019;Yang et al, 2019;Bao et al, 2019), where an aspect-independent encoder is used to generate the sentence representation. In addition, some work leverage the aspect-weakly associative encoder to generate aspect-specific sentence representation (Tang et al, 2016a;Wang et al, 2016;Majumder et al, 2018).…”