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Machine learning model-based prediction of postpancreatectomy acute pancreatitis following pancreaticoduodenectomy:A retrospective cohort study

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World Journal of Gastroenterology 2025年第8期31卷 9-23页

作者： ji-Ming Ma Peng-Fei wang Liu-Qing Yang Jun-Kai wang jian-Ping Song Yu-Mei Li Yan Wen Bing-Jun Tang Xue-Dong wang Hepatopancreatobiliary Center Beijing Tsinghua Changgung HospitalBeijing 102218China Department of Information Administration Beijing Tsinghua Changgung HospitalBeijing 102218China Department of Radiology Beijing Tsinghua Changgung HospitalBeijing 102218China Organ Transplantation Qilu HospitalCheeloo College of MedicineShandong UniversityJinan 250012Shandong ProvinceChina Department of Otorhinolaryngology Xiangyang No.1 People’s HospitalXiangyang 441000Hubei ProvinceChina

BACKGROUND The International Study Group of Pancreatic Surgery has established the defi-nition and grading system for postpancreatectomy acute pancreatitis(PPAP).There are no established machine learning models for predicting PPAP following pancreaticoduodenectomy(PD).AIM To explore the predictive model of PPAP,and test its predictive efficacy to guide the clinical *** Clinical data from consecutive patients who underwent PD between 2016 and 2024 were retrospectively *** analysis of PPAP risk factors was performed,various machine learning algorithms[logistic regression,random forest,gradient boosting decision tree,extreme gradient boosting,light gradient boosting machine,and category boosting(CatBoost)]were utilized to develop predictive *** feature elimination was employed to select several variables to achieve the optimal machine *** The study included 381 patients,of whom 88(23.09%)developed *** patients exhibited a significantly higher incidence of postoperative pancreatic fistula(55.68%vs 14.68%,P<0.001),grade C postoperative pancreatic fistula(9.09%vs 1.37%,P=0.001).The CatBoost algorithm outperformed other algorithms with a mean area under the receiver operating characteristic curve of 0.859[95%confidence interval(CI):0.814-0.905]in the training cohort and 0.822(95%CI:0.717-0.927)in the testing *** to shapley additive explanations analysis,pancreatic texture,main pancreatic duct diameter,body mass index,estimated blood loss,and surgery time were the most important variables based on recursive feature *** CatBoost algorithm based on selected variables demonstrated superior performance,with an area under the receiver operating characteristic curve of 0.837(95%CI:0.788-0.886)in the training cohort and 0.812(95%CI:0.697-0.927)in the testing *** We developed the first machine learning-based predictive model for PPAP following *** predictive model can assist surgeons in an

关键词： Pancreaticoduodenectomy Postoperative complication Acute pancreatitis Machine learning Predictive value

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Deep learning-based software engineering: progress,challenges, and opportunities

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Science China(Information Sciences) 2025年第1期68卷 57-144页

作者： Xiangping CHEN Xing HU Yuan HUANG He jiANG Weixing ji Yanjie jiANG Yanyan jiANG Bo LIU Hui LIU Xiaochen LI Xiaoli LIAN Guozhu MENG Xin PENG Hailong SUN Lin SHI Bo wang Chong wang jiayi wang Tiantian wang jifeng XUAN Xin XIA Yibiao YANG Yixin YANG Li ZHANG Yuming ZHOU Lu ZHANG School of Journalism and Communication Sun Yat-sen University School of Software Technology Zhejiang University School of Software Engineering Sun Yat-sen University School of Software Dalian University of Technology School of Computer Science and Technology Beijing Institute of Technology Key Laboratory of High Confidence Software Technologies (Peking University) Ministry of EducationSchool of Computer Science Peking University State Key Laboratory for Novel Software Technology Nanjing University School of Computer Science and Engineering Beihang University Institute of Information Engineering Chinese Academy of Sciences School of Computer Science Fudan University State Key Laboratory of Complex & Critical Software Environment (CCSE) School of Software Beihang University School of Computer and Information Technology Beijing Jiaotong University School of Computer Science and Technology Harbin Institute of Technology School of Computer Science Wuhan University Huawei Technologies

Researchers have recently achieved significant advances in deep learning techniques, which in turn has substantially advanced other research disciplines, such as natural language processing, image processing, speech recognition, and software engineering. Various deep learning techniques have been successfully employed to facilitate software engineering tasks, including code generation, software refactoring, and fault localization. Many studies have also been presented in top conferences and journals, demonstrating the applications of deep learning techniques in resolving various software engineering tasks. However,although several surveys have provided overall pictures of the application of deep learning techniques in software engineering,they focus more on learning techniques, that is, what kind of deep learning techniques are employed and how deep models are trained or fine-tuned for software engineering tasks. We still lack surveys explaining the advances of subareas in software engineering driven by deep learning techniques, as well as challenges and opportunities in each subarea. To this end, in this study, we present the first task-oriented survey on deep learning-based software engineering. It covers twelve major software engineering subareas significantly impacted by deep learning techniques. Such subareas spread out through the whole lifecycle of software development and maintenance, including requirements engineering, software development, testing, maintenance, and developer collaboration. As we believe that deep learning may provide an opportunity to revolutionize the whole discipline of software engineering, providing one survey covering as many subareas as possible in software engineering can help future research push forward the frontier of deep learning-based software engineering more systematically. For each of the selected subareas,we highlight the major advances achieved by applying deep learning techniques with pointers to the available datasets i

关键词： deep learning software engineering software benchmark software artifact representation survey

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Anatomic characteristics of the lacrimal sac and adjacent bony structures–a computed tomographicdacryocystography research

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International Journal of Ophthalmology(English edition) 2025年第2期18卷 251-257页

作者： Xin-Han Cui Yan-Wen Fang Li-Min Zhang ji-Ni Qiu Chao-Ran Zhang Yan wang Eye Institute and Department of Ophthalmology Eye and ENT Hospital of Fudan UniversityShanghai 200031China NHC Key laboratory of Myopia and Related Eye Diseases Key Laboratory of Myopia and Related Eye DiseasesChinese Academy of Medical SciencesShanghai 200031China Shanghai Key Laboratory of Visual Impairment and Restoration Shanghai 200031China Department of Ophthalmology Children’s Hospital of KaifengKaifeng 475000Henan ProvinceChina

AIM:To describe the anatomic characteristics of the lacrimal sac and its adjacent bone structures and to provide surgical recommendations for endoscopic dacryocystorhinostomy(EN-DCR).METHODS:This retrospective comparative study involved 118 sides with complete nasolacrimal duct obstruction and 83 unaffected sides from 126 *** tomographic-dacryocystography(CT-DCG)scans were performed before lacrimal surgery,and image reconstruction was used to obtain continuous 0.75-mm axial,coronal,and segmental sections for *** morphology of the lacrimal sac and its relationship with adjacent bony structures were determined for measurement,as well as the obstructed ***:The height of the lacrimal sac was 12.99±2.10 mm in this *** operculum of the middle turbinate(OMT)was located vertically in the lower third of the lacrimal ***,the junction between the maxillary bone and the lacrimal bone(MB-LB)was close to,mostly(60.2%)posterior to,the lacrimal *** uncinate process was more frequently attached to the lacrimal bones(75.1%).The obstructions were generally located around the entrance of the nasolacrimal duct(NLD).However,some were placed higher,with 7.63%blocked not lower than the *** was a negative correlation between the diameter of the lacrimal sac and the level of obstruction(r=-0.35,P<0.01).CONCLUSION:In this study,the OMT and MB-LB can be served as the landmarks in *** uncinectomy should be performed in most *** obstructions were generally located around the entrance of the NLD,but some extreme individual variations strongly implies the importance of CT-DCG scanning before surgery.

关键词： lacrimal sac nasolacrimal duct obstruction endoscopic dacryocystorhinostomy computed tomographic-dacryocystography

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Dual modulation of homogeneous nanomaterialization and electrochemical activation enhancing zinc ion storage

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Science China Chemistry 2025年第1期68卷 385-393页

作者： jianwei wang Huan wang Kangning wang Wenhui wang Wenlin Zhang Yanzhong Zhen School of Chemistry&Chemical Engineering Yan’an UniversityYan’an 716000China

Vanadium-based electrode materials are widely investigated,but the low specific capacity and slow electrochemical kinetics in aqueous zinc-ion batteries still limit their commercial ***,the VS_(2)/Ca V_(4)O_(9)material with the morphology of nanoflower was synthesized by a one-step hydrothermal *** to the blocky structure of pure VS_(2)material,the VS_(2)/Ca V_(4)O_(9)material is composed of thinner homogeneous *** open structures could provide abundant electrochemical active sites and ion transport channels,and then promote the electrochemical reaction *** addition,they can also buffer the bulk strain during the reaction *** improve the utilization of vanadium elements,an in-situ electrochemical activation strategy is used to explore the storage performance of the VS_(2)/Ca V_(4)O_(9)material,the different activation voltage range of 0.4–1.6 and 0.4–1.4 V are selected,*** with the longer activation plateau of activated-VS_(2),the VS_(2)/Ca V_(4)O_(9)cathode could quickly reach the activation state in the range of 1.4–1.6 V and cause the release of additional Zn storage sites *** VS_(2)/Ca V_(4)O_(9)cathode delivers a higher power density of 37,000 W kg^(-1)and a significant energy density of 423 Wh kg^(-1).At the high current density of 15 A g^(-1),the VS_(2)/Ca V_(4)O_(9)cathode still has a discharge capacity of 183.9m Ah g^(-1)after 5,000 cycles,and the capacity decay rate per cycle is only 0.0042%.Continuous cyclic voltammetry(CV)curves,electrochemical impedance spectroscopy(EIS)measurements,density functional theory(DFT)calculation and galvanostatic intermittent titration technique(GITT)measurements demonstrate that the VS_(2)/Ca V_(4)O_(9)cathode has a faster ion diffusion/charge transfer ***,the assembled flexible device has an excellent mechanical stability.

关键词： dual modulation homogeneous nanomaterialization electrochemical activation zinc ion storage

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A coordinated planning strategy of energy storage allocation and line upgrading to increase photovoltaic consumption with lowest planning cost

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Science China(Technological Sciences) 2025年第2期68卷 278-289页

作者： Bo ZHANG Yuqi ji Lu ZHANG Wei TANG Xiaohui ZHANG Liang wang Haoran DING Hanchen MAO College of Information and Electrical Engineering China Agricultural UniversityBeijing 100084China State Grid HeiLongjiang Electric Power Research Institute State Grid HeiLongJiang Electric Power Company LimitedHarbin 150030China School of Electrical and Information Engineering Zhengzhou University of Light IndustryZhengzhou 450000China

Random integration of massive distributed photovoltaic(PV)generation poses serious challenges to distribution *** violations,line overloads,increased peak-valley differences,and power-flow reversals can occur at different locations,times,and *** planning methods such as energy storage(ES)allocation and upgrading of lines may result in poor economics and low equipment *** study proposes a distribution-network planning strategy that coordinates three planning mechanisms:ES allocation to substations and to feeders,and line *** proposed strategy achieved the lowest annual cost,considering the distribution network problems at different locations,times,and severities.A net load curve description method was first proposed considering economic planning and the uncertain distribution of loads and ***,a multistage optimization model for ES allocation and line upgrading was established based on the net load ***,an improved IEEE33 node system was used in the case *** planning results show that the proposed coordinated planning strategy can address the problems caused by the random integration of massive distributed PVs,improve equipment utilization,and obtain the lowest total annual planning cost.

关键词： distribution network high proportion of PVs energy-storage allocation line upgrading uncertainty

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基于粒子群的正交超平行空间滤波及其在SOC估计中的应用

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控制与决策 2025年第02期40.0卷 599-607页

作者：王子赟季钢沈谦逸王艳纪志成江南大学物联网技术应用教育部工程研究中心江南大学物联网工程学院

针对未知但有界噪声下的系统状态估计问题,提出基于粒子群优化的正交超平行空间滤波算法.首先,利用包裹系统状态可行集的超平行空间的顶点构建正交超平行空间,并将其作为粒子群迭代寻优的真实状态搜索空间;然后,利用系统的观测值构造适... 详细信息

针对未知但有界噪声下的系统状态估计问题,提出基于粒子群优化的正交超平行空间滤波算法.首先,利用包裹系统状态可行集的超平行空间的顶点构建正交超平行空间,并将其作为粒子群迭代寻优的真实状态搜索空间;然后,利用系统的观测值构造适应度函数,判断粒子的优劣,驱动粒子在正交超平行空间移动,使得粒子分布在真实状态附近;最后,将粒子群所处的不规则高似然区域用最小的外包正交超平行空间包裹,通过线性规划求解该正交超平行空间的上下界,获得系统状态的紧致包裹.通过搭建的锂离子电池运行状态分析平台,验证所提出算法的有效性和实用性.

关键词：状态估计正交超平行空间粒子群滤波荷电状态

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The Dynamics of a Stochastic SEITR Model for Tuberculosis with Incomplete Treatment

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Acta Mathematicae Applicatae Sinica 2025年第1期41卷 99-113页

作者： Xiao-dong wang Kai wang Department of Medical Engineering and Technology Xinjiang Medical UniversityUrumqiXinjiang 830017China

In this paper,a stochastic SEITR model is formulated to describe the transmission dynamics of tuberculosis with incompletely *** conditions for the existence of a stationary distribution and extinction are *** addition,numerical simulations are given to illustrate these analytical *** and numerical results show that large environmental perturbations can inhibit the spread of tuberculosis.

关键词： tuberculosis stationary distribution extinction

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Co-doped cryptomelane-type manganese oxide in situ grown on a nickel foam substrate for high humidity ozone decomposition

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Journal of Environmental Sciences 2025年第2期148卷 529-540页

作者： Haoyuan Liang Xu wang Hui wang Zhenping Qu Key Laboratory of Industrial Ecology and Environmental Engineering School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China

Monolithic catalysts with excellent O_(3)catalytic decomposition performance were prepared by in situ loading of Co-doped KMn_(8)O_(16)on the surface of nickel *** triple-layer structure with Co-doped KMn_(8)O_(16)/Ni6MnO_(8)/Ni foam was grown spontaneously on the surface of nickel foam by tuning the molar ratio of KMnO_(4)to Co(NO_(3))_(2)·6H_(2)O ***,the formed Ni6MnO_(8)structure between KMn_(8)O_(16)and nickel foam during in situ synthesis process effectively protected nickel foam from further etching,which significantly enhanced the reaction stability of *** optimum amount of Co doping in KMn_(8)O_(16)was available when the molar ratio of Mn to Co species in the precursor solution was 2:*** the Mn2Co1 catalyst had abundant oxygen vacancies and excellent hydrophobicity,thus creating outstanding O_(3)decomposition *** O_(3)conversion under dry conditions and relative humidity of 65%,90%over a period of 5 hr was 100%,94%and 80%with the space velocity of 28,000 hr^(−1),*** in situ constructed Co-doped KMn_(8)O_(16)/Ni foam catalyst showed the advantages of low price and gradual applicability of the preparation process,which provided an opportunity for the design of monolithic catalyst for O_(3)catalytic decomposition.

关键词： Co-doped cryptomelane-type manganese O3 decomposition High humidity Nickel foam Monolithic catalyst

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Infrared small target detection based on density peaks searching and weighted multi-feature local difference

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Optoelectronics Letters 2025年第4期21卷 218-225页

作者： ji Bin FAN Pengxiang wang Mengli LIU Yang XU jiafeng School of Computer Science and Technology Anhui University of Technology

To address the issues of unknown target size, blurred edges, background interference and low contrast in infrared small target detection, this paper proposes a method based on density peaks searching and weighted multi-feature local difference. Firstly, an improved high-boost filter is used for preprocessing to eliminate background clutter and high-brightness interference, thereby increasing the probability of capturing real targets in the density peak search.

关键词： Target tracking

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Fresh insights into the onset of big mantle wedge beneath the North China Craton

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Acta Geochimica 2025年第1期44卷 145-162页

作者： Yingpeng wang Xuance wang Wen Zhang Xiaowei Yu Ligong wang jinhui wang Peigang Zhu Yongbin wang Shandong Institute of Geological Survey Ji’nan 250014People’s Republic of China Yunnan Key Laboratory of Earth System Science Yunnan UniversityEast Outer Ring RoadChenggong DistrictKunming 650500Yunnan ProvincePeople’s Republic of China Key Laboratory of Critical Minerals Metallogeny in Universities of Yunnan Province Yunnan UniversityKunming 650500People’s Republic of China Radiogenic Isotope Facility School of Earth and Environment SciencesUniversity of QueenslandBrisbaneQLD 4072Australia

The onset of the big mantle wedge(BMW)structure beneath the North China Craton remains *** on the genesis of Late Mesozoic granites associated with gold deposits in the jiaodong Peninsula above the BMW could provide fresh insights into this *** monzogranite from the Zhaoxian-Shaling gold district was intruded during 154-148 *** I-type granite has high-K calc-alkaline and metaluminous *** monzogranite formed at medium temperatures(718-770℃)and was generated in a thickened lower crust at depths within the stability field of *** monzogranite’s high zircon Ce^(4+)/Ce^(3+)and Eu_(N)/Eu_(N)^(*)values and low FeOT/MgO ratios,suggest that it formed in a high oxygen *** variableε_(Hf)(t)values with T_(DM2)of 1.93-2.87 Ga imply that it originated from the melting of ancient crust basement,with contributions from mantle-derived *** granite’s enrichment in LREEs and LILEs,and depletion in HREEs and HFSEs,along with its trace element tectonic discrimination diagrams and medium Sr/Y,indicate an adakite affinity in an active continental margin *** transition from S-type granites to I-type granites and finally to A-type granites observed in the eastern part of North China Craton suggests a shift in the tectonic environment from compression to *** change is also reflected in the transition from flat subduction to steep ***,the monzogranite was formed in a tectonic transition setting triggered by a change in the subduction angle of the PaleoPacific Ocean slab during the Late *** event may have marked the initiation of the BMW above the North China Craton.

关键词： Zircon U-Pb age Hf isotopic composition jiaodong Peninsula North China Craton

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