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An isogeometric numerical study of partially and fully implicit schemes for transient adjoint shape sensitivity

Zhen-Pei WANG, Zhifeng XIE, Leong Hien POH

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 279-293 doi: 10.1007/s11465-019-0575-5

Abstract: It is found that (i) the explicit approach ( = 0) and semi-implicit approach with <0.5 impose a strictstability condition of the transient analysis; (ii) the implicit approach ( =1) and semi-implicit approachcondition is much less critical than the Crank–Nicolson scheme, and the accuracy is higher than a fully implicit

Keywords： isogeometric shape optimization     design-dependent boundary condition     transient heat conduction     implicit    

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Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 959-973 doi: 10.1007/s11708-021-0753-0

Abstract: In the numerical analysis, the moving particle full-implicit method (MPFI), which is one of the particle

Keywords： molten metal spreading     solidification     particle method     severe accident     fuel debris     decommissioning    

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A novel confidence estimation method for heterogeneous implicit feedback Article

Jing WANG, Lan-fen LIN, Heng ZHANG, Jia-qi TU, Peng-hua YU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1817-1827 doi: 10.1631/FITEE.1601468

Abstract: Implicit feedback, which indirectly reflects opinion through user behaviors, has gained increasing attentionA major way of exploiting implicit feedback is to treat the data as an indication of positive and negativeHowever, in real-world applications, there are usually various types of implicit feedback, which canbe referred to as heterogeneous implicit feedback.Existing methods cannot efficiently infer confidence levels from heterogeneous implicit feedback.

Keywords： Recommender systems     Heterogeneous implicit feedback     Confidence     Collaborative filtering     E-commerce    

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Power-efficient dual-edge implicit pulse-triggered flip-flop with an embedded clock-gating scheme Article

Liang GENG,Ji-zhong SHEN,Cong-yuan XU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9,   Pages 962-972 doi: 10.1631/FITEE.1500293

Abstract: A novel dual-edge implicit pulse-triggered flip-flop with an embedded clock-gating scheme (DIFF-CGS)Also, full-swing operations in both implicit pulse generation and the static latch improve the robustness

Keywords： Low power     Flip-flop     Implicit     Clock-gating scheme     Dual-edge    

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Explicit–Implicit Co-Simulation Techniques for Dynamic Responses of a Passenger Car on Arbitrary Road Article

Hongzhou Hu, Zhihua Zhong

Engineering 2019, Volume 5, Issue 6,   Pages 1171-1178 doi: 10.1016/j.eng.2019.09.003

Abstract: The investigations are based on an explicit–implicit approach in which substructure techniquesIt can be concluded that the explicit–implicit co-simulation techniques used here are efficient

Keywords： Durability study     Dynamic responses     Passenger car     Explicit–implicit co-simulation     Contact-impact    

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Improvement of solidification model and analysis of 3D channel blockage with MPS method

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 946-958 doi: 10.1007/s11708-021-0754-z

Abstract: The moving particle semi-implicit (MPS) method is one of the Lagrangian-based particle methods for analyzing

Keywords： boiling water reactor (BWR)     severe accident     channel blockage     moving particle semi-implicit (MPS) method    

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Preference transfer model in collaborative filtering for implicit data Project supported by Article

Bin JU,Yun-tao QIAN,Min-chao YE

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 6,   Pages 489-500 doi: 10.1631/FITEE.1500313

Abstract: Generally, predicting whether an item will be liked or disliked by active users, and how much an item will be liked, is a main task of collaborative filtering systems or recommender systems. Recently, predicting most likely bought items for a target user, which is a subproblem of the rank problem of collaborative filtering, became an important task in collaborative filtering. Traditionally, the prediction uses the user item co-occurrence data based on users’ buying behaviors. However, it is challenging to achieve good prediction performance using traditional methods based on single domain information due to the extreme sparsity of the buying matrix. In this paper, we propose a novel method called the preference transfer model for effective cross-domain collaborative filtering. Based on the preference transfer model, a common basis item-factor matrix and different user-factor matrices are factorized. Each user-factor matrix can be viewed as user preference in terms of browsing behavior or buying behavior. Then, two factor-user matrices can be used to construct a so-called ‘preference dictionary’ that can discover in advance the consistent preference of users, from their browsing behaviors to their buying behaviors. Experimental results demonstrate that the proposed preference transfer model outperforms the other methods on the Alibaba Tmall data set provided by the Alibaba Group.

Keywords： Recommender systems     Collaborative filtering     Preference transfer model     Cross domain     Implicit data    

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Cross-lingual implicit discourse relation recognitionwith co-training None

Yao-jie LU, Mu XU, Chang-xing WU, De-yi XIONG, Hong-ji WANG, Jin-song SU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 5,   Pages 651-661 doi: 10.1631/FITEE.1601865

Abstract: A lack of labeled corpora obstructs the research progress on implicit discourse relation recognitionIn this paper, we propose a cross-lingual implicit DRR framework that exploits an available English corpusChinese and English in a co-training way, which exploits unlabeled Chinese data to implement better implicit

Keywords： Cross-lingual     Implicit discourse relation recognition     Co-training    

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Implicit Heaviside filter with high continuity based on suitably graded THB splines

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 14-14 doi: 10.1007/s11465-021-0670-2

Abstract: In this paper, an implicit Heaviside filter with high continuity is introduced to generate black andThrough the intrinsic local support and high continuity of THB basis, an implicit adaptively adjusteddensity; b) the efficiency in updating design variables is remarkably improved than the traditional implicitSeveral numerical examples are used to verify the effectiveness of the proposed implicit Heaviside filter

Keywords： topology optimization     truncated hierarchical B-spline     isogeometric analysis     black and white designs     Heaviside filter    

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The Group Interaction Field for Learning and Explaining Pedestrian Anticipation

Xueyang Wang,Xuecheng Chen,Puhua Jiang,Haozhe Lin,Xiaoyun Yuan,Mengqi Ji,Yuchen Guo,Ruqi Huang,Lu Fang,

Engineering doi: 10.1016/j.eng.2023.05.020

Abstract: Anticipating others’ actions is innate and essential in order for humans to navigate and interact well with others in dense crowds. This ability is urgently required for unmanned systems such as service robots and self-driving cars. However, existing solutions struggle to predict pedestrian anticipation accurately, because the influence of group-related social behaviors has not been well considered. While group relationships and group interactions are ubiquitous and significantly influence pedestrian anticipation, their influence is diverse and subtle, making it difficult to explicitly quantify. Here, we propose the group interaction field (GIF), a novel group-aware representation that quantifies pedestrian anticipation into a probability field of pedestrians’ future locations and attention orientations. An end-to-end neural network, GIFNet, is tailored to estimate the GIF from explicit multidimensional observations. GIFNet quantifies the influence of group behaviors by formulating a group interaction graph with propagation and graph attention that is adaptive to the group size and dynamic interaction states. The experimental results show that the GIF effectively represents the change in pedestrians’ anticipation under the prominent impact of group behaviors and accurately predicts pedestrians’ future states. Moreover, the GIF contributes to explaining various predictions of pedestrians’ behavior in different social states. The proposed GIF will eventually be able to allow unmanned systems to work in a human-like manner and comply with social norms, thereby promoting harmonious human–machine relationships.

Keywords： Human behavior modeling and prediction     Implicit representation of pedestrian anticipation     Group interaction    

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Study on hydrodynamic and synthetic water quality model for river networks

Zhang Mingliang,Shen Yongming

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 78-83

Abstract:

The Preissmann implicit scheme is used to discrete the one-dimensional

Keywords： Preissmann implicit scheme     river networks     hydrodynamic model     water quality model     WASP model    

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A New Explicit Equation for Calculating the Friction Factor for the Turbulent Flow in Pipes

Wang Yong,Yuan Qi

Strategic Study of CAE 2006, Volume 8, Issue 6,   Pages 83-88

Abstract: Calculating friction factor by implicit Colebrook equation have to use iterative algorithm, which is

Keywords： turbulent flow     friction factor     implicit Colebrook equation     genetic algorithms     intelligent fitting method    

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Study and Application of Steady Flow and Unsteady Flow Mathematical Model for Canal Networks

Zhang Mingliang,Shen Yongming

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 92-96

Abstract:

Based on Preissmann implicit scheme for one-dimensional Saint-Venant

Keywords： Preissmann implicit scheme     canal networks and river networks     discharge distribution     water quality    

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Using information flowanalysis to detect implicit information leaks forweb service composition None

Jia-xin JIANG, Zhi-qiu HUANG, Wei-wei MA, Yan CAO

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 4,   Pages 494-502 doi: 10.1631/FITEE.1601371

Abstract: We present an automated and effective approach for the detection of implicit information leaks in businessapplication of a Petri net reachability graph to estimate Petri net interference and thereby to detect implicit

Keywords： Information flow analysis     Business process execution language     Petri net     Interference    

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Title Author Date Type Operation

An isogeometric numerical study of partially and fully implicit schemes for transient adjoint shape sensitivity

Zhen-Pei WANG, Zhifeng XIE, Leong Hien POH

Journal Article

Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

Journal Article

A novel confidence estimation method for heterogeneous implicit feedback

Jing WANG, Lan-fen LIN, Heng ZHANG, Jia-qi TU, Peng-hua YU

Journal Article

Power-efficient dual-edge implicit pulse-triggered flip-flop with an embedded clock-gating scheme

Liang GENG,Ji-zhong SHEN,Cong-yuan XU

Journal Article

Explicit–Implicit Co-Simulation Techniques for Dynamic Responses of a Passenger Car on Arbitrary Road

Hongzhou Hu, Zhihua Zhong

Journal Article

Improvement of solidification model and analysis of 3D channel blockage with MPS method

Journal Article

Preference transfer model in collaborative filtering for implicit data Project supported by

Bin JU,Yun-tao QIAN,Min-chao YE

Journal Article

Cross-lingual implicit discourse relation recognitionwith co-training

Yao-jie LU, Mu XU, Chang-xing WU, De-yi XIONG, Hong-ji WANG, Jin-song SU

Journal Article

Implicit Heaviside filter with high continuity based on suitably graded THB splines

Journal Article

The Group Interaction Field for Learning and Explaining Pedestrian Anticipation

Xueyang Wang,Xuecheng Chen,Puhua Jiang,Haozhe Lin,Xiaoyun Yuan,Mengqi Ji,Yuchen Guo,Ruqi Huang,Lu Fang,

Journal Article

Study on hydrodynamic and synthetic water quality model for river networks

Zhang Mingliang,Shen Yongming

Journal Article

A New Explicit Equation for Calculating the Friction Factor for the Turbulent Flow in Pipes

Wang Yong,Yuan Qi

Journal Article

Study and Application of Steady Flow and Unsteady Flow Mathematical Model for Canal Networks

Zhang Mingliang,Shen Yongming

Journal Article

Using information flowanalysis to detect implicit information leaks forweb service composition

Jia-xin JIANG, Zhi-qiu HUANG, Wei-wei MA, Yan CAO

Journal Article

Yan Yixin: Analysis on the Evolution of Implicit Energy Trade Institutions in Regions along the the Belt

10 Jun 2022

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