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James Ding Nov 21, 2024 03:48
IIT Madras Brain Centre, in collaboration with NVIDIA, uses AI to revolutionize neuroscience research by enhancing brain imaging analysis through visual question answering and multimodal retrieval.
The Indian Institute of Technology Madras (IIT Madras) Brain Centre is at the forefront of neuroscience research by employing advanced artificial intelligence (AI) technologies. In collaboration with NVIDIA, the Brain Centre is utilizing visual question answering (VQA) and multimodal retrieval to enhance the accessibility and analysis of brain imaging data, according to a recent report by NVIDIA.
The innovative framework developed by IIT Madras enables researchers to link brain imaging data with the latest neuroscience research. This is achieved through a comprehensive processing pipeline that integrates VQA models and large language models (LLMs). The framework allows researchers to explore advancements related to specific brain regions and conditions, providing a new dimension to understanding brain structure and function.
Key to this process is the ingestion and Q&A sections. The ingestion phase indexes neuroscience publications into a knowledge base, while the Q&A phase allows users to interact with the knowledge base, using a retrieval-augmented generation (RAG) pipeline to filter and retrieve relevant content. This multimodal interaction enhances the depth and accuracy of research insights.
The framework enables users to input images of brain regions and query specific details about them. Advanced VQA models, such as Llava-Med, are employed to provide detailed answers. This capability is further extended with image-to-image retrieval functions, which are still under development, aiming to allow searches based on visual similarities.
NVIDIA’s technological stack is integral to the framework’s success. Tools like the NVIDIA NeMo Retriever and NeMo Guardrails enhance retrieval accuracy and ensure the relevance of user-generated content. The framework utilizes a fine-tuned embedding model, improving retrieval accuracy by over 15%. Additionally, NVIDIA’s infrastructure supports efficient inferencing speeds, crucial for handling simultaneous user queries.
The NVIDIA AI Blueprint for multimodal PDF data extraction further complements this framework by accurately parsing neuroscience publications, thus enriching the data available for analysis.
Examples of the framework’s application include identifying brain regions from images and retrieving similar tissue samples. This capability promises to advance research in neuroscience by providing precise and accessible data for analysis, potentially leading to breakthroughs in understanding complex brain functions and conditions.
Through this collaboration, IIT Madras and NVIDIA are not only pushing the boundaries of neuroscience research but are also paving the way for life-saving discoveries by making complex data more accessible and understandable.
For more information, visit the NVIDIA blog.
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