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随着科技的飞速发展，机器学习已经成为推动企业进步的关键因素。然而，对于中小企业而言，数据量和算力的限制常常成为其应用机器学习的障碍。算力网络的兴起则为企业带来了新的机遇，但也伴随着数据安全等新的挑战。提出一种面向算力网络的多用户安全协同计算线性回归方案，该方案允许多个用户使用敏感数据在算力网络中实现安全的联合训练，从而构建线性回归模型。该方案采用低成本盲化手段与同态加密技术对用户敏感数据进行加密处理，从而保护了敏感数据的安全性。

Copyright of Journal of Sichuan University (Medical Science Edition) is the property of Editorial Board of Journal of Sichuan University (Medical Sciences) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Engineering Management & Technology Discussion is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of New Medicine is the property of Sun Yat Sen University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To investigate the predictive value of 24 h ambulatory blood pressure monitoring combined with serum N-terminal B-type brain natriuretic peptide precursor （NT-proBNP） and T-cadherin levels for perinatal outcome of pregnant women with preeclampsia （PE）. Methods A total of 196 PE pregnant women were selected and divided into the poor perinatal outcome group （128 cases） and good perinatal outcome group （68 cases） according to the perinatal outcome. All pregnant women received 24 h ambulatory blood pressure monitoring on the next day after admission； we collected peripheral venous blood， centrifuged serum， and tested serum NT-proBNP， T-cadherin. The 24 h ambulatory blood pressure parameters and serum NT-proBNP and T-cadherin levels were compared between the two groups. Multivariate Logistic regression model was used to analyze the influencing factors for poor perinatal outcome of PE pregnant women. The predictive value of 24 h ambulatory blood pressure parameters and serum NT-proBNP and T-cadherin levels for the adverse perinatal outcome of PE pregnant women was analyzed by using the receiver operating characteristic （ROC） curve. Results The 24 h， daytime and nighttime systolic blood pressure （SBP） and its load value，24 h， daytime and nighttime diastolic blood pressure （DBP） and its load value， as well as the serum NT-proBNP water in the poor outcome group were significantly higher than those in the good outcome group （all P<0. 05）， while the serum T-cadherin level was significantly lower than that in the good outcome group （P<0. 05）. Multivariate Logistic regression analysis showed that nighttime SBP load value， severe PE and serum NT-proBNP level were independent risk factors for poor perinatal outcome of PE pregnant women， while serum T-cadherin level was its independent protective factor （all P<0. 05）. The ROC curve analysis showed that the area under the curve of nighttime SBP load value and serum NT-proBNP and T-cadherin levels alone and jointly in predicting the poor perinatal outcome of PE pregnant women was 0. 759，0. 666，0. 687 and 0. 921， respectively. The area under the curve of nighttime SBP load value and serum NT-proBNP and T-cadherin levels combined in predicting the poor perinatal outcome of PE pregnant women was significantly higher than that of the three alone （P< 0. 05）. Conclusion The nighttime SBP load value and serum NT-proBNP level of PE pregnant women with poor perina⁃ tal outcomes significantly increase， while the serum T-cadherin level significantly decreases； the nighttime SBP load value and serum NT-proBNP and T-cadherin levels have certain predictive value for the adverse perinatal outcome of PE pregnant women， and the combined predictive value of the three is higher. [ABSTRACT FROM AUTHOR]

Objective　 To investigate the diagnostic value of serum high-mobility group protein B1 (HMGB1) combined with cardiac Tei index in children with congenital heart disease (CHD) complicated with pulmonary arterial hypertension (PAH). Methods　 A total of 152 children with CHD were selected as the CHD group and they underwent right heart catheterization after admission. They were divided into PAH group (n=39) and non-PAH group (n=113) according to whether PAH occurred or not. At the same time, 48 healthy children were selected as the control group. Clinical data of each group were collected, including gender, age, BMI, N-terminal pro-B-type natriuretic peptide (NT-proBNP), echocardiographic indicators [left ventricular end-diastolic diameter (LVEDD), left atrial diameter (LAD), left ventricular ejection fraction (LVEF), and left ventricular short-axis shortening rate (LVFS)]. HMGB1 was detected by enzymelinked immunosorbent assay on the next day after the admission in children with CHD and at the physical examination in the children in the control group. Echocardiographic examination was performed in the two groups after admission, and cardiac Tei index was calculated. The diagnostic value of serum HMGB1 level and cardiac Tei index in patients with CHD complicated with PAH was analyzed by ROC curve. Results　 The serum HMGB1 level and cardiac Tei index in the CHD group were higher than those in the control group (both P<0. 05). NT-proBNP, LAD, HMGB1 and Tei index in the PAH group were higher than those in the non-PAH group, and LVEF was lower than that in the PAH group( all P<0. 05). Multivariate Logistic regression analysis showed that the increase of NT-proBNP, HMGB1 and Tei index were independent risk factors for PAH in children with CHD, and the increase of LVEF was independent protective factor (all P<0. 05). The ROC curve analysis showed that the area under the curve of serum HMGB1 level and cardiac Tei index alone and combined in the diagnosis of PAH in children with CHD were 0. 790, 0. 797 and 0. 885, respectively, and the area under the curve of serum HMGB1 level combined with cardiac Tei index in the diagnosis of PAH in children with CHD was greater than that of the two alone( P<0. 05). Conclusion　 The combined detection of serum HMGB1 level and cardiac Tei index has higher diagnostic value in children with CHD complicated with PAH. [ABSTRACT FROM AUTHOR]

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Practical Pharmacy & Clinical Remedies is the property of Editorial Department of Practical Pharmacy & Clinical Remedies and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Chemistry & Industry of Forest Products is the property of Chemistry & Industry of Forest Products Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Network & Information Security is the property of Beijing Xintong Media Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Clinical Nursing in Practice is the property of Journal of Clinical Nursing in Practice (Editorial Board, Shanghai Jiao Tong University Press) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Chemistry & Industry of Forest Products is the property of Chemistry & Industry of Forest Products Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Fudan University Journal of Medical Sciences is the property of Fudan University Journal of Medical Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To evaluate the remission rate of metabolic syndrome (MS) 3 years after Roux‑en‑Y gastric bypass (RYGB) and the predictive factors associated with MS remission in Chinese patients with obesity and MS. Methods This study was a retrospective cohort study and included 148 obese patients with MS who were treated with RYGB in Shanghai Jiao Tong University Affiliated Sixth People′s Hospital from July 2011 to April 2016. All patients were followed up for 3 years after surgery. The medical history and physical examination data, including duration of diseases, medication history, family history of diabetes, blood pressure, waist circumference, etc. were collected. Fasting blood glucose, glycated hemoglobin A1c, blood lipid profile, C‑reactive protein (CRP) and other indicators were detected. Body mass index (BMI) and percentages of total weight loss (TWL) were calculated. According to whether or not their MS were remission 3 years after metabolic surgery, all patients were divided into MS remission group (n=85) and non‑remission group (n=34). The t test and χ2 test were used to compare the clinical data between the two groups, and a multivariate logistic regression model was established to analyze the related factors affecting MS remission. Results A total of 119 patients (80.4%) with an average age of (48.3±11.4) years old were followed up for 3 years. Among these patients, 70 cases (58.8%) were female. The BMI was (31.6±3.5) kg/m2 before surgery but was decreased to (25.3±3.3) kg/m2 3 years after surgery. The prevalence of MS decreased from 100% (119/119) before surgery to 28.6% (34/119) three years after RYGB surgery, and the differences were statistically significant (χ²=132.2, P<0.01). Percentage of TWL in the MS remission group was higher than that of the non-remission group, the differences were statistically significant [(20.9±6.9)% vs (17.4±6.5)%, t=2.626, P=0.011]. Logistics multiple regression analysis revealed that preoperative CRP [odds ratio (OR)=0.79, 95% confidence interval (CI): 0.68- 0.92, P<0.01] and percentage of TWL (OR=1.09, 95%CI: 1.00- 1.19, P=0.047) were independent influencing factors of MS remission at 3 years after metabolic surgery. Conclusions RYGB can improve MS in Chinese obese patients. The higher the percentage of TWL, the lower the preoperative CRP, and the greater the possibility of remission of MS after RYGB. Mid‑term MS remission after RYGB may be associated with weight loss and improvement of chronic inflammation. [ABSTRACT FROM AUTHOR]

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)