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- W4384207668 abstract "Sarcasm is a form of communication often used to express contempt or ridicule, where the speaker conveys a message opposite to their true meaning, typically intending to mock or belittle a specific target. Sarcasm detection has gained great attention in the field of natural language processing due to the fact that sarcasm is widespread on social media and difficult to detect for machines. While early efforts in sarcasm detection solely relied on textual data, the abundance of multimodal data on social media is also non-negligible. Recent research has focused on multimodal sarcasm detection, where attention mechanisms and graph neural networks were commonly used to identify relevant information in both image and text data. However, these methods may overlook the importance of prior knowledge and cross-modal semantic contrast, which are crucial factors for human sarcasm detection. In this paper, we propose a novel model named KnowleNet that leverages the ConceptNet knowledge base to incorporate prior knowledge and determine image-text relatedness through sample-level and word-level cross-modal semantic similarity detection. Contrastive learning is also introduced to improve the spatial distribution of sarcastic (positive) and non-sarcastic (negative) samples. The proposed model achieves state-of-the-art performance on publicly available benchmark datasets." @default.
- W4384207668 created "2023-07-14" @default.
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- W4384207668 date "2023-12-01" @default.
- W4384207668 modified "2023-09-30" @default.
- W4384207668 title "KnowleNet: Knowledge fusion network for multimodal sarcasm detection" @default.
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- W4384207668 doi "https://doi.org/10.1016/j.inffus.2023.101921" @default.
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