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First, a data anomaly analysis architecture based on the PIoT is built, and high-quality data processing is achieved through cloud-edge collaboration. Then, on the edge side, a kernel function is used to optimize the fuzzy C clustering algorithm to obtain data feature curves and possible abnormal samples are screened out through similarity metric methods for further analysis. Finally, a deep Q network (DQN) combined with a long-short term memory network (LSTM) is deployed in the cloud center, and data anomaly analysis results are obtained through training and analysis of the LSTM-DQN network. Based on the selected data samples, experimental analysis is conducted on the proposed method, and the results show that its analysis accuracy, response time, and stability are 96.07%, 220\u2009ms, and 0.02, respectively, which can quickly and accurately analyze abnormal measurement data.<\/jats:p>","DOI":"10.1515\/jisys-2024-0118","type":"journal-article","created":{"date-parts":[[2025,9,19]],"date-time":"2025-09-19T02:13:34Z","timestamp":1758248014000},"source":"Crossref","is-referenced-by-count":0,"title":["An anomaly analysis method for measurement data based on similarity metric and improved deep reinforcement learning under the power Internet of Things architecture"],"prefix":"10.1515","volume":"34","author":[{"given":"Ximing","family":"Chen","sequence":"first","affiliation":[{"name":"State Grid Anhui Marketing Service Center , Hefei , Anhui, 230088 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yeping","family":"Gan","sequence":"additional","affiliation":[{"name":"State Grid Anhui Electric Power Co., LTD , Hefei , Anhui, 230022 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Min","family":"Ren","sequence":"additional","affiliation":[{"name":"State Grid Anhui Marketing Service Center , Hefei , Anhui, 230088 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aiqiong","family":"Ji","sequence":"additional","affiliation":[{"name":"Measurement and Quality Inspection Department, State Grid Anhui Marketing Service Center , Hefei , Anhui, 230088 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianshun","family":"Ding","sequence":"additional","affiliation":[{"name":"Measurement and Quality Inspection Department, State Grid Anhui Marketing Service Center , Hefei , Anhui, 230088 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kun","family":"Ma","sequence":"additional","affiliation":[{"name":"Measurement and Quality Inspection Department, State Grid Anhui Marketing Service Center , Hefei , Anhui, 230088 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2025,9,16]]},"reference":[{"key":"2025122009032289151_j_jisys-2024-0118_ref_001","doi-asserted-by":"crossref","unstructured":"Takiddin A, Ismail M, Zafar U, Serpedin E. 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