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Nevertheless, traditional extractive text summarization methods still hold substantial research value due to their low computational cost, interpretability, and robustness. In algorithms like TextRank and its variants, graph nodes are typically constructed based on surface\u2010level lexical features. These graphs often fail to incorporate many contextual relationships, such as coreference relationships among nodes, resulting in fragmented representations of key concepts. For edge construction, a sliding window of size T is commonly used to connect word nodes within the window. However, these methods often fall short in modeling the rich contextual dependencies embedded in the document. Several recent studies have demonstrated that semantic graphs can effectively improve the accuracy of text summarization. In this paper, we construct a more interpretable semantic graph from syntax trees and propose a novel unsupervised algorithm based on the personalized PageRank algorithm for summary extraction. We utilize tree transformation methods to enrich word\u2010level information for graph construction, define node\u2010merging rules to reduce graph complexity, use coreference chains to merge coreferring entities across sentences for enriching contextual links, and introduce the concept of Meta Node sets to capture thematic relationships that are not fully represented by syntactic dependencies or coreference chains alone. By clustering semantically related words, Meta Nodes enhance the graph\u2019s ability to reflect deeper contextual coherence across the document. Compared with previous TextRank\u2010based methods, our improvement yields significant ROUGE score boosts on the CNN\u2010DM dataset. While the method was developed and evaluated using English\u2010language datasets, its underlying design is language agnostic and can be adapted to other languages with suitable linguistic tools.<\/jats:p>","DOI":"10.1155\/int\/5530784","type":"journal-article","created":{"date-parts":[[2025,11,22]],"date-time":"2025-11-22T06:50:48Z","timestamp":1763794248000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Method of Extractive Text Summarization Using Document Semantic Graph With Node Ranking"],"prefix":"10.1155","volume":"2025","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-1500-1057","authenticated-orcid":false,"given":"Zhenhao","family":"Li","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2259-9782","authenticated-orcid":false,"given":"Miao","family":"Liu","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7642-7279","authenticated-orcid":false,"given":"Wenbin","family":"Chen","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2991-0564","authenticated-orcid":false,"given":"Ligang","family":"Zheng","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2025,11,21]]},"reference":[{"key":"e_1_2_11_1_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11042-023-17879-1"},{"key":"e_1_2_11_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-031-87766-7_9"},{"key":"e_1_2_11_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.neucom.2024.128255"},{"key":"e_1_2_11_4_2","unstructured":"MihalceaR.andTarauP. 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