Partha Sarkar, Author at Towards Data Science https://towardsdatascience.com Publish AI, ML & data-science insights to a global community of data professionals. Tue, 09 Dec 2025 13:30:00 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://towardsdatascience.com/wp-content/uploads/2025/02/cropped-Favicon-32x32.png Partha Sarkar, Author at Towards Data Science https://towardsdatascience.com 32 32 GraphRAG in Practice: How to Build Cost-Efficient, High-Recall Retrieval Systems https://towardsdatascience.com/graphrag-in-practice-how-to-build-cost-efficient-high-recall-retrieval-systems/ Tue, 09 Dec 2025 13:30:00 +0000 https://towardsdatascience.com/?p=607859 Smarter retrieval strategies that outperform dense graphs — with hybrid pipelines and lower cost

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]]> Why CrewAI’s Manager-Worker Architecture Fails — and How to Fix It https://towardsdatascience.com/why-crewais-manager-worker-architecture-fails-and-how-to-fix-it/ Tue, 25 Nov 2025 18:45:38 +0000 https://towardsdatascience.com/?p=607733 A real-world analysis of why CrewAI’s hierarchical orchestration misfires—and a practical fix you can implement today.

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]]> Do You Really Need GraphRAG? A Practitioner’s Guide Beyond the Hype https://towardsdatascience.com/do-you-really-need-graphrag-a-practitioners-guide-beyond-the-hype/ Tue, 11 Nov 2025 17:00:00 +0000 https://towardsdatascience.com/?p=607606 A perspective on GraphRAG design best practices, challenges and learnings

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]]> Building a Multimodal RAG That Responds with Text, Images, and Tables from Sources https://towardsdatascience.com/building-a-multimodal-rag-with-text-images-tables-from-sources-in-response/ Mon, 03 Nov 2025 20:03:24 +0000 https://towardsdatascience.com/?p=607546 Why do few chatbots return figures from source documents in their responses?

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]]> Digital Twin Modeling Using Machine Learning and Constrained Optimization https://towardsdatascience.com/digital-twin-modeling-using-machine-learning-and-constrained-optimization-401187f2a382/ Fri, 07 Oct 2022 20:21:15 +0000 https://towardsdatascience.com/digital-twin-modeling-using-machine-learning-and-constrained-optimization-401187f2a382/ A comparative analysis

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