AM
A.G. Mercier
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This paper explores whether explicit causal reasoning can enhance exploration in embodied LLM-driven agents by integrating a causal world model (BISCUIT) and a novel surgical intervention mechanism. We introduce two new agent architectures: Predforge, which uses causal predictions to inform action selection, and Causalforge, which identifies and executes surgical interventions to isolate causal dependencies. We develop a full evaluation pipeline including an exploration metric, intervention detection framework, and multi-agent experimental setup in AI2-THOR and compare these agents against Voyager and Mindforge baselines. Our results show that BISCUIT’s prediction errors are concentrated precisely in the semantically important regions of the environment, limiting Causalforge’s ability to identify most surgical interventions. However, the predictions remain sufficiently reliable to provide modest benefit to Predforge. Multi-agent experiments further reveal how communication, partner modeling, and environment structure shape exploration. We conclude with a detailed analysis of failure modes and outline future directions including online causal world model updates, integrating Mindforge beliefs into the causal world model, richer causal environments, and task independent skill acquisition to unlock the full potential of causal exploration in LLM-based agents.
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This paper explores whether explicit causal reasoning can enhance exploration in embodied LLM-driven agents by integrating a causal world model (BISCUIT) and a novel surgical intervention mechanism. We introduce two new agent architectures: Predforge, which uses causal predictions to inform action selection, and Causalforge, which identifies and executes surgical interventions to isolate causal dependencies. We develop a full evaluation pipeline including an exploration metric, intervention detection framework, and multi-agent experimental setup in AI2-THOR and compare these agents against Voyager and Mindforge baselines. Our results show that BISCUIT’s prediction errors are concentrated precisely in the semantically important regions of the environment, limiting Causalforge’s ability to identify most surgical interventions. However, the predictions remain sufficiently reliable to provide modest benefit to Predforge. Multi-agent experiments further reveal how communication, partner modeling, and environment structure shape exploration. We conclude with a detailed analysis of failure modes and outline future directions including online causal world model updates, integrating Mindforge beliefs into the causal world model, richer causal environments, and task independent skill acquisition to unlock the full potential of causal exploration in LLM-based agents.
Identification of subjects from reconstructed images
Identification of individual subjects based on image reconstructions generated from fMRI brain scans
Reconstructing seen images from functional magnetic resonance imaging (fMRI) brain scans has been a growing topic of interest in the field of neuroscience, fostered by innovation in machine learning and AI. This paper investigates the possible presence of personal features allowing the identification of subjects from their reconstructed images. Identifying the extent to which personal information is present is necessary to prevent privacy and data protection breaches. Additionally, personal features may reveal information about how people see the world, furthering work in computer-brain interfacing or helping people with neurological conditions that affect sight. In this paper, a CNN model is presented that allows to identify subjects from their reconstructed image with an average accuracy of 90.4%. An encoder-decoder model was used to produce the reconstructed images from the Generic Object Data set. The accuracy shows that personal features are indeed present in the reconstructed images, raising important ethical and legal considerations when using image reconstruction technology.
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Reconstructing seen images from functional magnetic resonance imaging (fMRI) brain scans has been a growing topic of interest in the field of neuroscience, fostered by innovation in machine learning and AI. This paper investigates the possible presence of personal features allowing the identification of subjects from their reconstructed images. Identifying the extent to which personal information is present is necessary to prevent privacy and data protection breaches. Additionally, personal features may reveal information about how people see the world, furthering work in computer-brain interfacing or helping people with neurological conditions that affect sight. In this paper, a CNN model is presented that allows to identify subjects from their reconstructed image with an average accuracy of 90.4%. An encoder-decoder model was used to produce the reconstructed images from the Generic Object Data set. The accuracy shows that personal features are indeed present in the reconstructed images, raising important ethical and legal considerations when using image reconstruction technology.