Global-Aware Attention Network for Multi-modal Sarcasm Detection.

Sarcasm detection is crucial for natural language processing in various applications, such as affective computing and opinion mining. Multi-modal sarcasm detection, which combines information from different modalities, has attracted increasing attention in recent years. However, many current methods concatenate image and text features directly without considering the contextual information between the cross-modal alignment and single-modal features simultaneously. Inspired by this observation, we propose a novel Global-Aware Attention Network (GAAN) for multi-modal sarcasm detection. Specifically, we investigate a cross-modal multi-granularity alignment module that captures align context features through coarse-grained and fine-grained attention. More importantly, considering the complementary effects of single-modal contextual information in sarcasm detection, we fuse textual, visual context features and alignment context features to obtain the global context features. We conducted extensive experiments on public datasets, and the results compared to the baselines illustrate that our proposed model obtains state-of-the-art performance in multi-modal sarcasm detection.