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Three prompt strategies were examined. The first, "Simple Descriptive Prompts," explicitly directs the model to identify clues such as unnatural textures or lighting . However, the t-SNE visualization in Figure 3.4 demonstrates that feature vectors for real and fake image descriptions overlap significantly using this method . This lack of separation indicates that simple prompts fail to produce sufficiently discriminative semantic features, making effective differentiation between real and AI-generated images difficult based on this strategy alone . |