Publications by authors named "Shuisheng Zhou"

Article Synopsis
  • Possibilistic fuzzy c-means (PFCM) is a clustering method combining features from fuzzy c-means and possibilistic c-means, but it struggles with finding optimal solutions due to local minima issues.
  • This paper introduces MMPFCM, a new optimization method derived using the majorization-minimization (MM) technique, which simplifies the problem and improves performance.
  • Through experiments, MMPFCM shows better clustering results and convergence to superior local minima while maintaining the same complexity as PFCM but with reduced memory usage per iteration.
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Feature selection refers to a vital function in machine learning and data mining. The maximum weight minimum redundancy feature selection method not only considers the importance of features but also reduces the redundancy among features. However, the characteristics of various datasets are not identical, and thus the feature selection method should have different feature evaluation criteria for all datasets.

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The support vector machine (SVM) has been combined with the intuitionistic fuzzy set to suppress the negative impact of noises and outliers in classification. However, it has some inherent defects, resulting in the inaccurate prior distribution estimation for datasets, especially the imbalanced datasets with non-normally distributed data, further reducing the performance of the classification model for imbalance learning. To solve these problems, we propose a novel relative density-based intuitionistic fuzzy support vector machine (RIFSVM) algorithm for imbalanced learning in the presence of noise and outliers.

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Objective: The efficacy of mesenchymal stem cell (MSC) therapy in acetaminophen-induced liver injury has been investigated in animal experiments, but individual studies with a small sample size cannot be used to draw a clear conclusion. Therefore, we conducted a systematic review and meta-analysis of preclinical studies to explore the potential of using MSCs in acetaminophen- induced liver injury.

Methods: Eight databases were searched for studies reporting the effects of MSCs on acetaminophen hepatoxicity.

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Background: Insomnia is a common disease characterized by difficulty falling and/or staying asleep, and accompanied by irritability or fatigue during wakefulness. It is widely reported that insomnia is one of the most extensive mental disorders which the incidence rate is estimated to be about 10%. Insomnia can have serious influences on patients health and quality of life.

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Objective: To evaluate the value of Model for end-stage liver disease (MELD) in assessing the prognosis of acute fatty liver of pregnancy (AFLP).

Study Design: This was a retrospective study. From January 2010 to July 2018, data of 53 women diagnosed with AFLP in the third affiliated hospital of Sun Yat-Sen University were collected.

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Objective: To evaluate the usefulness of a fasting plasma glucose (FPG) at the first trimester in predicting gestational diabetes mellitus (GDM) and the association between FPG and adverse pregnancy outcomes.

Methods: The levels of FPG in women with singleton pregnancies were measured at 9-13 weeks. A two hour 75-g oral glucose tolerance test (OGTT) was completed at 24-28 weeks and the International Association of Diabetes and Pregnancy Study Groups (IADPSG) criteria was used.

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Background: To investigate the effect of a mildly elevated thyroid-stimulating hormone (TSH) concentration between 2.5 and 4.0 mIU/L during the first trimester on pregnancy outcomes in thyroid peroxydase antibody (TPOAb)-negative pregnant women.

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Backgrounds: This study aimed to evaluate the relationship between neck circumference (NC) and gestational diabetes mellitus (GDM), and the efficacy of NC in predicting GDM by comparing with pregestational body mass index (preBMI) in southern Chinese woman.

Marerials And Methods: A total of 371 pregnant women (97 GDM and 274 normal pregnant women) were recruited from the third affiliated hospital of Sun Yat-Sen University, Guangzhou, China. NC was measured at 11-13 gestational weeks.

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Preeclampsia (PE), a complication of pregnancy, is the leading cause of maternal and perinatal morbidity and mortality and seriously impacts maternal and child health. This study aimed to characterize biomarkers for the early diagnosis of PE. We performed a comparative proteomic analysis on the plasma obtained from PE and healthy pregnant women.

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Objective: The present study aimed to evaluate the pregestational body mass index (preBMI) and initial fasting plasma glucose (FPG) in predicting gestational diabetes mellitus (GDM) in southern Chinese women.

Study Design: A total of 327 pregnant women were recruited from the third affiliated hospital of Sun Yat-Sen University, Guangzhou, China. The preBMI and initial FPG at 16-18 weeks' gestation were measured.

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For support vector machine (SVM) learning, least squares SVM (LSSVM), derived by duality LSSVM (D-LSSVM), is a widely used model, because it has an explicit solution. One obvious limitation of the model is that the solution lacks sparseness, which limits it from training large-scale problems efficiently. In this paper, we derive an equivalent LSSVM model in primal space LSSVM (P-LSSVM) by the representer theorem and prove that P-LSSVM can be solved exactly at some sparse solutions for problems with low-rank kernel matrices.

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This study aimed at developing strategies for screening, predicting, and diagnosing intrauterine HBV infection in infants born to HBsAg positive mothers. A total of 1,360 infants born to 1,355 HBsAg positive mothers were followed for 1 year. All newborn infants received active and passive immunization within 24 hr after birth.

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Aim: To investigate the clinical characteristics of fulminant hepatitis in pregnancy.

Methods: We compared and analyzed the etiology, clinical characteristics, and laboratory examinations of 25 cases of fulminant hepatitis in pregnancy and 30 cases of fulminant hepatitis not in pregnancy.

Results: HBV infection and chronic fulminant hepatitis were most common both in the pregnant and in the non-pregnant groups.

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Aim: To analyze the related indices about the prognoses of chronic liver failure caused by hepatitis virus.

Methods: Retrospectively reviewed 320 cases of chronic liver failure caused by hepatitis viruses. An improved group and an ineffective group (IG) were made to compare and analyze their clinical manifestations, laboratory examination indices and complications.

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Objective: To determine the influence of pre-pregnant body mass index (BMI) and weight gain during pregnancy on the occurrence of pregnancy-induced hypertension (PIH) and birth weight.

Methods: Pre-pregnant BMI and pregnancy weight gain of 769 mothers giving full-term birth to a single baby for the first time were measured and the pregnancy outcomes were followed up.

Results: (1) The incidence of PIH and fetal macrosomia was significantly higher in the overweight group than in the normal weight and underweight groups (P<0.

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Objectives: To study the occurrence of different anomalies associated with hypospadias and to instruct relevant treatment in clinical practice.

Methods: Three hundred and forty-one cases of hypospadias were investigated, all treated respectively corresponding to their specific anomalies.

Results: The morbidity of associated anomalies in cases of hypospadias was as high as 21.

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Papillary cystadenoma of the epididymis is a rare benign tumor, accounting for only 4 per cent of all epididymal tumors. Histologically, it can be confused with metastatic renal cell carcinoma. This extremely rare lesion may occur sporadically or as a manifestation of von Hippel-Lindau(VHL) disease.

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