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This blogpost will highlight the main ideas, concepts and findings presented in the Bachelor thesis on Visual Question Answering (VQA) with Knowledge-based Semantics that considers training a VQA model with strong semantic and conceptual understanding by learning towards a latent space spanned by the Conceptnet Numberbatch embeddings on the OK-VQA dataset. The blog post will revisit the model formulation, yet keep an emphasis on the proposed idea of presenting VQA models with strong semantic and conceptual understanding rather than solely focusing on accuracy as the performance metric. In the process, explainability tools are exploited.
This blogpost will examine whether model biases can be mitigated by training a Variational Fair Autoencoder for Heterogeneous Mixed Type Data (VFAE-HM) following the modeling approach of Louizos, C. et al.. Additionally, the approach of Ma, C. et al. is considered for determining proper output distributions for the decoder of the VFAE.
This thesis considers an exhaustive state-of-the-art (SOTA) desription of VQA models, theoretical considerations and implementation details for training a VQA model learning towards a semantical- and conceptually strong latent space spanned by the Conceptnet Numberbatch embeddings as well an analysis of model behaviour by exploiting explainability tools.
Recommended citation: Jacobsen, Albert Kjøller; Højbjerg, Phillip Chavarria; Jacobsen, Aron Djurhuus. (2022). "Visual Question Answering with Knowledge-based Semantics." DTU Department of Applied Mathematics and Computer Science . https://findit.dtu.dk/en/catalog/62c6c822d4fccf03d747b3db
BSc course, Technical University of Denmark, Department of Applied Mathematics and Computer Science, 2020
Link to course description: https://kurser.dtu.dk/course/2020-2021/02461
BSc course, Technical University of Denmark, Department of Applied Mathematics and Computer Science, 2021
Link to course description: https://kurser.dtu.dk/course/2020-2021/02462
BSc & MSc course, Technical University of Denmark, Department of Applied Mathematics and Computer Science, 2022
Link to course description: https://kurser.dtu.dk/course/2022-2023/02450