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SPARK: Skeleton-Guided Reasoning Synthesis from Large-Scale Scientific Literature

Year: 2026
Type: conference-paper
Abstract: Scientific reasoning remains challenging for open-source models, largely due to the lack of high-quality scientific reasoning data.Existing datasets are often dominated by factual recall or formulaic problem solving, with limited emphasis on mechanism understanding, evidence-grounded reasoning, and hypothesis evaluation.To address this, we introduce SPARK (Scientific Paper Abstracted Reasoning sKeleton), a paper-oriented synthesis framework built on SCI-BASE, a large-scale corpus of research papers spanning 10 scientific disciplines.Instead of directly converting papers into question-answer pairs, SPARK treats the claim-evidence-derivation structure of a paper as the fundamental unit of reasoning synthesis.Specifically, SPARK (1) distills each paper into a compact reasoning skeleton capturing its central claims and supporting evidence, enabling self-contained question generation, and (2) synthesizes reasoning tasks from four scientific perspectives: mechanistic reasoning, hypothesis falsification, quantitative derivation, and boundary calibration.A final consistency verification stage further removes unsupported or contradictory outputs.Using this framework, we construct Spark-234K, a scientific reasoning dataset with substantially higher difficulty and diversity than existing resources.Experiments show that Spark-234K consistently outperforms existing scientific reasoning datasets while achieving stronger performance with significantly fewer training samples.
Language: English
Open Access status: hybrid
OpenAlex ID: W7204894844
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