Research ArticleOpen accessIn the author namesHybrid Soft Voting Ensemble of XGBoost and DNN for At-Risk Student Performance PredictionEugene Wan, Po Chan Chiu, Mohammad bin Hossin et al.Early identification of at-risk students in higher education is important for timely academic intervention, yet conventional prediction methods often struggle with data imbalance and limited model precision. This study proposes a hybrid soft voting ensemble model that integrates Extreme Gradient Boosting (XGBoost) and Deep Neural Network (DNN) to enhance multi-class student grade prediction (A-F classification) and at-risk student identification. This … …Journal of Computer Science, Vol. 22, Issue 5 · 28 May 2026 · 1,390 accessesView PDFCite
Research ArticleOpen accessIn the author namesSynthesis and Characterization of Marine Clay-Supported Nano Zero Valent IronHo Kuok How, Wan Zuhairi Wan YaacobThis study reports the preparation and characterization of marine clay nano zero valent iron (MC+nZVI) where marine clay acts as the composite material. Marine clay was air dried and pulverized before used. Basically, MC+nZVI was synthesized by chemical reduction method. The materials synthesized were left oven dried overnight at 50°C. The obtained materials were characterized by Field Emission Scanning Electron … …American Journal of Environmental Sciences, Vol. 11, Issue 2 · 26 Jun 2015 · 7,124 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Review of Integrated River Basin Management for Sarawak RiverKuok King Kuok, Sobri Harun, Po-Chan ChiuProblem statement: Sarawak River was a life-sustaining water source for the residents in Kuching City and surrounding areas. Raw water is treated at Batu Kitang Water Treatment Plant (BKWTP) that supplies more than 98% of the total water production in Kuching City. The raw water supply to BKWTP is not adequate to meet the ever increasing water demand. In order … …American Journal of Environmental Sciences, Vol. 7, Issue 3 · 21 Jul 2011 · 9,091 accessesView PDFCite