对本体进行预处理，把本体表示为有向无环图，将本体分块问题转换为图分割问题。

The ontologies are represented in Directed Acyclic graph (DAG) structures by preprocessing. So, the ontology partition question is changed into a graph partition question.

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实验结果表明，文中算法解决了平行分割阴影图算法的冗余渲染问题，提高了渲染效率和场景阴影质量。

The results show that LiSPSSM effectively addresses the redundant rendering problem in PSSM and improves the efficiency and quality of real-time shadow rendering.

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针对上述问题，提出了一种融合图象腐蚀和区域生长的矸石图象分割算法。

For above problems, the paper proposed a segmentation algorithm of gangue image based on image eroding and region growing.

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