Computation of electromagnetic fields scattered from objects with uncertain shapes using multilevel Monte Carlo method by Litvinenko, Alexander, Yucel, Abdulkadir C., Bagci, Hakan, Oppelstrup, Jesper, Michielssen, Eric, Tempone, Raul

“…The CMLMC method optimally balances statistical errors due to sampling of the parametric space and numerical errors due to the discretization of the geometry using a hierarchy of discretizations, from coarse to fine. The number of realizations of finer discretizations can be kept low, with most samples computed on coarser discretizations to minimize computational cost. …”
Get full text

Soil liquefaction assessment using soft computing approaches based on capacity energy concept by Chen, Zhixiong, Li, Hongrui, Goh, Anthony Teck Chee, Wu, Chongzhi, Zhang, Wengang

“…Several liquefaction evaluation procedures and approaches have been developed relating the capacity energy to the initial soil parameters, such as the relative density, initial effective confining pressure, fine contents, and soil textural properties. In this study, based on the capacity energy database by Baziar et al. (2011), analyses have been carried out on a total of 405 previously published tests using soft computing approaches, including Ridge, Lasso & LassoCV, Random Forest, eXtreme Gradient Boost (XGBoost), and Multivariate Adaptive Regression Splines (MARS) approaches, to assess the capacity energy required to trigger liquefaction in sand and silty sands. …”
Get full text

Using AI for music source separation by Lee, Jasline Jie Yu

“…The objective is to analyse the impacts of different components present in both Spectrogram and Waveform based systems through fine-tuning, data handling and ablation testing. …”
Get full text

Language-guided visual retrieval by He, Su

“…For NLVL, we utilize the fine-grained semantic features of the sparse frames in the video. …”
Get full text

Vehicle re-identification using machine learning by Tang, Lisha

“…PANet and PMNet construct a two-stage attention structure to perform a coarse-to-fine search among identities. Finally, we address this Re-ID issue as a multi-task problem and employ Homoscedastic Uncertainty Learning to automatically balance the loss weightings. …”
Get full text

iTD3-CLN: learn to navigate in dynamic scene through Deep Reinforcement Learning by Jiang, Haoge, Esfahani, Mahdi Abolfazli, Wu, Keyu, Wan, Kong-wah, Heng, Kuan-kian, Wang, Han, Jiang, Xudong

“…In contrast to the conventional methods such as the DWA, our approach is found superior in the following ways: no need for prior knowledge of the environment and metric map, lower reliance on an accurate sensor, learning emergent behavior in dynamic scene that is intuitive, and more remarkably, able to transfer to the real robot without further fine-tuning. Our extensive studies show that in comparison to the original TD3, the proposed approach can obtain approximately 50% reduction in training to get same performance, 50% higher accumulated reward, and 30–50% increase in generalization performance when tested in unseen environments. …”
Get full text

PromptChart: prompting InstructGPT for zero & few-shot chart question answering and summarization by Do, Xuan Long

“…Existing state-of-the-art models rely on fine-tuning strategies and struggle with tasks that involve logical and arithmetic reasoning. …”
Get full text

Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves by Gao, Yubo, Li, Zhihao, Ge, Yanxin, Shi, Liutong

“…This paper focused on the dynamic failure and fracture mechanisms of the fine-grained Al2O3/SiC composite subjected to plane shock waves. …”
Get full text

Temperature dependence of elastocaloric effect in a microstructurally graded NiTi alloy by Chen, Junyu, Wang, Wenqiang, Zhang, Qi, Lei, Liping, Ramamurty, Upadrasta, Fang, Gang

“…Detailed analyses show that while the fine grains present in the core of NiTi sheets reduce the global martensitic autocatalytic nucleation potency and increase strength to broaden Tspan, the coarser grains near the surfaces accommodate interlayer deformation to improve |ΔTad|. …”
Get full text

L’ Edudiante high tech bag. by Tan, Sherry Wanxin.

Get full text

Development of a real time 3D surgical scene for natural orifice endoscopic surgery by Ang, Stella Rui Yee

“…The final product of this project is being established when feasibility of IGT Navigation System and Data Registration are demonstrated. With fine tuning, it can be applied in relation to “Real Time Three-Dimensional (3D) Surgical Scene for Natural Orifice Endoscopic Surgery”, whereby its needs are closely met.…”
Get full text

Effect of confining pressure on hysteresis of soil-water characteristic curves by Eng, Ngee Kiang

“…In this project, river sand specimens of different fine contents (5% and 30% fines) were subjected to multi-cycles of drying and wetting at non-zero net confining pressures using the SWCC Apparatus. …”
Get full text

Cycle-based trading & portfolio management system by Zhan, Xiaoying

“…To improve its performance, Evolutionary Algorithms (EA) are applied to fine tune the model’s parameters. In addition, angular coding scheme is used to conquer the problem of limited search space associated with the designing of TSK Fuzzy Rule-Based System with EAs. …”
Get full text

Pathways of energy transfer in LHCII revealed by room-temperature 2D electronic spectroscopy by Wells, Kym L., Lambrev, Petar H., Zhang, Zhengyang, Garab, Gyözö, Tan, Howe-Siang

“…Observing cross-peak regions corresponding to couplings between different excitonic states reveals partially resolved fine structure at the exciton level that cannot be isolated by pump–probe or linear spectroscopy measurements alone. …”
Get full text
Get full text

Dynamic traction of lattice-confined platinum atoms into mesoporous carbon matrix for hydrogen evolution reaction by Lou, David Xiong Wen, Zhang, Huabin, An, Pengfei, Zhou, Wei, Guan, Bu Yuan, Zhang, Peng, Dong, Juncai

“…Results of extended x-ray absorption fine structure investigation and density functional theory calculation suggest that the active sites are associated with the lattice-confined Pt centers and the activated carbon (C)/nitrogen (N) atoms at the adjacency of the isolated Pt centers. …”
Get full text
Get full text

Surface modification of additive manufactured components by ultrasonic cavitation abrasive finishing by Tan, Kai Liang, Yeo, Song Huat

“…Scanning electron microscopic images revealed that most small-sized partially melted powders were removed through heterogeneous cavitation nucleation on the specimens’ rough initial surface. A secondary fine-scale erosion mechanism by micro-abrasives, accelerated by cavitation bubble collapses, further depressed difficult-to-remove irregularities.…”
Get full text
Get full text

Triple boundary multiphase with predictive interleaving technique for switched capacitor DC-DC converter regulation by Xiao, Zhekai, Kok, Chiang Liang, Siek, Liter

“…The proposed technique avoids these problems by using triple boundary hysteretic control, where one comparator is used for defining the reference voltage, and the other two comparators enable coarse/fine operation to achieve both fast recovery and tight regulation.…”
Get full text
Get full text

Properties and flexural performance of iron ore tailings concrete by Oritola, Sikiru Folahan

Get full text

Negative density dependence promotes persistence of a globally rare yet locally abundant plant species Oenothera coloradensis by Stears, AE, Heidel, B, Paniw, M, Salguero-Gómez, R, Laughlin, DC

“…Consequently, several mechanisms have been proposed to explain their persistence, including negative density dependence, demographic compensation, vital rate buffering, asynchronous responses of subpopulations to environmental heterogeneity, and fine-scale source-sink dynamics. Persistence of seeds in a seed bank, which is often ignored in models of population dynamics, can also buffer small populations against collapse. …”

Cadmium isotope fractionation during adsorption onto calcite by Peng, H, Liu, P, Zheng, H, Belshaw, NS, Hu, S, Zhu, Z

“…The enrichment of lighter Cd isotopes may result from highly distorted octahedral Cdsingle bondO6 sites of inner-sphere Cd complexes on calcite, indicated by extended X-ray absorption fine structure (EXAFS). However, near identical coordination environments of the aqueous and sorbed Cd species in the presence of PO43− likely led to the reduced Cd isotope fractionation. …”