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1
Nature-inspired superlyophobic surfaces
Tez

Tez
Open Access
Kaynak :
The Dart-Europe
Dergi:
Technische Universiteit Eindhoven
Yazar(lar) :
Di Wu
Yıl :
2007
Di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
Sınıflandırma :
2
Does Social Media Get Your Attention?
Dergi Makalesi

Dergi Makalesi
Kaynak :
Taylor and Francis
Dergi:
Journal of Behavioral Finance
Yayıncı:
Informa UK Limited
Yazar(lar) :
Di Wu
Yıl :
2019
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
The author investigates how social media affects stock prices and post–earnings announcement drift in response to companies’ quarterly earnings announcements. Using quarterly earnings data as well Twitter and StockTwits data, the author utilizes Twitter volume and a residual methodology to generate an attention proxy that is orthogonal to the growth of Twitter accounts. The author finds that the new attention brought by social media after the earnings announcements positively affects the cumulative abnormal returns. Further, even companies reporting bad news can still have positive immediate cumulative abnormal returns if they attract enough attention from investors after an earnings announcement. The new attention effects are different in both magnitudes and statistical significance between social media popular and unpopular industries.
DOI : 10.1080/15427560.2018.1505729
Anahtar Kelimeler : Social media, Investor attention, Earnings announcement
ISSN: 1542-7560
Sayı: 2
Cilt: 20
Sayfa: 213-226
3
Signal eigen-analysis and L1 inversion of seismic data
Tez

Tez
Open Access
Kaynak :
The Dart-Europe
Dergi:
Imperial College London
Yazar(lar) :
Di Wu
Yıl :
2013
Di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
Sınıflandırma :
4
The rogue transcriptome electronic resource : using sequencing to track RNA regulation and identify unusual RNAs
Tez

Tez
Open Access
Kaynak :
Stanford University Thesis
Dergi:
Stanford University
Yayıncı:
Stanford University
Yazar(lar) :
Di Wu
Yıl :
2013
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
First, we take a look at the function of a specific type of RNA editing mediated by ADAR (adenosine deaminase that acts on RNAs). We test our hypotheses on ADAR activity and target specificity through transcriptome analysis in the context of exogenous RNAi response pathway in C. elegans. By examining of small RNA and mRNA populations in adar mutants and additional RNAi defective mutants, we show that the activity and specificity of the ADAR enzyme likely precludes the detection of its targets through conventional methods of sequence capture and analysis. Based on this understanding, we develop novel computational approaches for analysis of small RNA and mRNA populations and identify a broader set of ADAR targets, leading to a deeper understanding of the ADAR pathway, the conserved functionalities of the ADAR enzyme, and its relationship with the exogenous RNAi pathway in C. elegans. Second, we examine the dynamics of the transcriptome upon and after exposure to extreme heat. We hypothesize that the recovery response after removal from heat exposure might involve alternations in transcription regulation that are more complex than a reversal of the heat-shock induced effects, and that one such form of long-term regulation might involve the endogenous RNAi pathway and regulation via synthesis of endogenous siRNAs. By examining the dynamics of the C. elegans transcriptome during time-course of heat exposure and recovery, we reach a deeper understanding of heat shock biology and explore the relationship between endogenous siRNAs and their sequence complementary mRNA targets in the context of environmentally induced perturbance.
Sınıflandırma :
Biyotıp %98
5
The Rogue transcriptome : using sequencing to track RNA regulation and identify unusual RNAs
Tez

Tez
Open Access
Kaynak :
Stanford University Thesis
Dergi:
Stanford University
Yayıncı:
Stanford University
Yazar(lar) :
Di Wu
Konu :
Adenosine Deaminase > metabolism, RNA > metabolism, RNA Editing, RNA Interference, RNA, Small Interfering, Caenorhabditis elegans, Heat-Shock Response, RNA-Binding Proteins, Transcriptome, Animals, Academic Dissertations, Fulltext, Internet Resources, Manuscripts, Digital, Index not Present, Genetic
Yıl :
2013
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
First, we take a look at the function of a specific type of RNA editing mediated by ADAR (adenosine deaminase that acts on RNAs). We test our hypotheses on ADAR activity and target specificity through transcriptome analysis in the context of exogenous RNAi response pathway in C. elegans. By examining of small RNA and mRNA populations in adar mutants and additional RNAi defective mutants, we show that the activity and specificity of the ADAR enzyme likely precludes the detection of its targets through conventional methods of sequence capture and analysis. Based on this understanding, we develop novel computational approaches for analysis of small RNA and mRNA populations and identify a broader set of ADAR targets, leading to a deeper understanding of the ADAR pathway, the conserved functionalities of the ADAR enzyme, and its relationship with the exogenous RNAi pathway in C. elegans. Second, we examine the dynamics of the transcriptome upon and after exposure to extreme heat. We hypothesize that the recovery response after removal from heat exposure might involve alternations in transcription regulation that are more complex than a reversal of the heat-shock induced effects, and that one such form of long-term regulation might involve the endogenous RNAi pathway and regulation via synthesis of endogenous siRNAs. By examining the dynamics of the C. elegans transcriptome during time-course of heat exposure and recovery, we reach a deeper understanding of heat shock biology and explore the relationship between endogenous siRNAs and their sequence complementary mRNA targets in the context of environmentally induced perturbance.
Sınıflandırma :
Biyotıp %98
6
Human Action Recognition Using Deep Probabilistic Graphical Models
Tez

Tez
Open Access
Kaynak :
The Dart-Europe
Dergi:
University of Sheffield
Yazar(lar) :
Di Wu
Yıl :
2014
Di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
7
The everyday life of Chinese migrants in Zambia: emotion, sociality and moral interaction
Tez

Tez
Open Access
Kaynak :
The Dart-Europe
Dergi:
London School of Economics and Political Science
Yazar(lar) :
Di Wu
Yıl :
2014
Di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
Sınıflandırma :
8
Proximity Ligation and Barcoding Assays : Tools for analysis of proteins and protein complexes
Tez

Tez
Open Access
Kaynak :
The Dart-Europe
Dergi:
Uppsala University, Sweden
Yazar(lar) :
Di Wu
Yıl :
2014
Di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
Sınıflandırma :
9
Cauchy problem for the incompressible Navier-Stokes equation with an external force and Gevrey smoothing effect for the Prandtl equation
Tez

Tez
Open Access
Kaynak :
The Dart-Europe
Dergi:
Université Sorbonne Paris Cité
Yazar(lar) :
Di Wu
Yıl :
2017
Di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
Sınıflandırma :
10
P2-090: Investigation of tau and MARKs interaction by using proximity ligation assay in situ
Dergi Makalesi

Dergi Makalesi
Kaynak :
Wiley Online Library
Dergi:
Alzheimer's & Dementia
Yazar(lar) :
Di Wu
Konu :
Health Policy, Developmental Neuroscience, Epidemiology, Cellular and Molecular Neuroscience, Geriatrics and Gerontology, Psychiatry and Mental health, Clinical Neurology
Yıl :
2011
Di Wu
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DOI : 10.1016/j.jalz.2011.05.980
ISSN: 1552-5260
Cilt: 7
Sayfa: S336-S336
11
Rethinking creative industries research: Synthesizing the Creative Class thesis, clustering, and global production network approaches
Dergi Makalesi

Dergi Makalesi
Kaynak :
Wiley Online Library
Dergi:
Geography Compass
Yazar(lar) :
Di Wu
Konu :
Computers in Earth Sciences, Earth-Surface Processes, Atmospheric Science, General Social Sciences, Water Science and Technology
Yıl :
2017
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
Identifying three prevalent approaches—Richard Florida's consumption‐related Creative Class thesis, clustering of the creative industries, and global production networks of these industries—to understand the geography and development of the creative industries in existing literature, this paper reviews the significance and limitations of these approaches. It argues that existing literature treat these approaches “stand alone” from each another, without acknowledging the importance of other actors and forces. Instead, these three dynamics do not function separately, but are interdependent and complementary. It points to a critical agenda for future research, arguing that it is the intersection and synergy between these three dynamics that together shapes the development of the creative industries. This paper calls for further research, first, to examine the interrelationship between the local and the global scales of the creative industries by adopting the Global Production Networks (GPN) approach and, second, to study the association between the consumption‐related urban amenities and the production of the creative industries.
DOI : 10.1111/gec3.12348
ISSN: 1749-8198
Sayı: 12
Cilt: 11
Sayfa: e12348
12
Effect of Magnetic Saturation in Fractional Slot PM Machines with Particular Reference to Terminal Voltage Distortion
Tez

Tez
Open Access
Kaynak :
The Dart-Europe
Dergi:
University of Sheffield
Yazar(lar) :
DI WU
Yıl :
2015
DI WU
Yayıncı Web Sitesi
Kaydet Alıntıla
Sınıflandırma :
13
‘In the Name of Children’: Children in Dickens’s Journalism and Novels
Tez

Tez
Open Access
Kaynak :
The Dart-Europe
Dergi:
University of Leicester
Yazar(lar) :
Di Wu
Yıl :
2011
Di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
Sınıflandırma :
14
Proline puckering parameters for collagen structure simulations
Dergi Makalesi

Dergi Makalesi
Open Access
Kaynak :
Directory of Open Access Journals (DOAJ)
Dergi:
AIP Advances
Yazar(lar) :
Di Wu
Yıl :
2015
Di Wu
Yayıncı Web Sitesi
 Piri Tam Metin Bulucu
Kaydet Alıntıla
Collagen is made of triple helices rich in proline residues, and hence is influenced by the conformational motions of prolines. Because the backbone motions of prolines are restricted by the helical structures, the only side chain motion—proline puckering—becomes an influential factor that may affect the stability of collagen structures. In molecular simulations, a proper proline puckering population is desired so to yield valid results of the collagen properties. Here we design the proline puckering parameters in order to yield suitable proline puckering populations as demonstrated in the experimental results. We test these parameters in collagen and the proline dipeptide simulations. Compared with the results of the PDB and the quantum calculations, we propose the proline puckering parameters for the selected collagen model simulations.
DOI : 10.1063/1.4915295
ISSN: 2158-3226
Cilt: 5
Sayı: 3
Sayfa: 037124 - 037124-10
Sınıflandırma :
15
Dynamic water patterns change the stability of the collapsed filter conformation of the KcsA K+ channel.
Dergi Makalesi

Dergi Makalesi
Open Access
Kaynak :
Directory of Open Access Journals (DOAJ)
Dergi:
PLoS ONE
Yazar(lar) :
Di Wu
Yıl :
2017
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
The selectivity filter of the KcsA K+ channel has two typical conformations-the conductive and the collapsed conformations, respectively. The transition from the conductive to the collapsed filter conformation can represent the process of inactivation that depends on many environmental factors. Water molecules permeating behind the filter can influence the collapsed filter stability. Here we perform the molecular dynamics simulations to study the stability of the collapsed filter of the KcsA K+ channel under the different water patterns. We find that the water patterns are dynamic behind the collapsed filter and the filter stability increases with the increasing number of water molecules. In addition, the stability increases significantly when water molecules distribute uniformly behind the four monomeric filter chains, and the stability is compromised if water molecules only cluster behind one or two adjacent filter chains. The altered filter stabilities thus suggest that the collapsed filter can inactivate gradually under the dynamic water patterns. We also demonstrate how the different water patterns affect the filter recovery from the collapsed conformation.
DOI : 10.1371/journal.pone.0186789
ISSN: 1932-6203
Cilt: 12
Sayı: 10
Sayfa: e0186789
Sınıflandırma :
16
The puckering free-energy surface of proline
Dergi Makalesi

Dergi Makalesi
Open Access
Kaynak :
Directory of Open Access Journals (DOAJ)
Dergi:
AIP Advances
Yazar(lar) :
Di Wu
Yıl :
2013
Di Wu
Yayıncı Web Sitesi
 Piri Tam Metin Bulucu
Kaydet Alıntıla
Proline has two preferred puckering states, which are often characterized by the pseudorotation phase angle and amplitude. Although proline's five endocyclic torsion angles can be utilized to calculate the phase angle and amplitude, it is not clear if there is any direct correlation between each torsion angle and the proline-puckering pathway. Here we have designed five proline puckering pathways utilizing each torsion angle χj (j = 1∼5) as the reaction coordinate. By examining the free-energy surfaces of the five puckering pathways, we find they can be categorized into two groups. The χ2 pathway (χ2 is about the Cβ—Cγ bond) is especially meaningful in describing proline puckering: it changes linearly with the puckering amplitude and symmetrically with the phase angle. Our results show that this conclusion applies to both trans and cis proline conformations. We have also analyzed the correlations of proline puckering and its backbone torsion angles ϕ and ψ. We show proline has preferred puckering states at the specific regions of ϕ, ψ angles. Interestingly, the shapes of ψ-χ2 free-energy surfaces are similar among the trans proline in water, cis proline in water and cis proline in the gas phase, but they differ substantially from that of the trans proline in the gas phase. Our calculations are conducted using molecular simulations; we also verify our results using the proline conformations selected from the Protein Data Bank. In addition, we have compared our results with those calculated by the quantum mechanical methods.
DOI : 10.1063/1.4799082
ISSN: 2158-3226
Cilt: 3
Sayı: 3
Sayfa: 032141 - 032141
Sınıflandırma :
17
Blow-Up Criterion and Examples of Global Solutions of Forced Navier-Stokes Equations
Dergi Makalesi

Dergi Makalesi
Kaynak :
Springer Link
Dergi:
Acta Applicandae Mathematicae
Yazar(lar) :
Di Wu
Konu :
Applied Mathematics
Yıl :
2020
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
In this paper we first show a blow-up criterion for solutions to the Navier-Stokes equations with a time-independent force by using the profile decomposition method. Based on the orthogonal properties related to the profiles, we give some examples of global solutions to the Navier-Stokes equations with a time-independent force, whose initial data are large.
DOI : 10.1007/s10440-020-00326-w
Anahtar Kelimeler : Navier-Stokes equation, Besov class, Long-time behavior, Regularity
ISSN: 0167-8019 1572-9036
Sayı: 1
Cilt: 170
Sayfa: 99-122
18
Robust Face Recognition Method Based on Kernel Regularized Relevance Weighted Discriminant Analysis and Deterministic Approach
Dergi Makalesi

Dergi Makalesi
Kaynak :
Springer Link
Dergi:
Sensing and Imaging
Yazar(lar) :
Di Wu
Konu :
Electrical and Electronic Engineering, Instrumentation
Yıl :
2019
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
A novel feature dimensionality reduction strategy based on kernel regularized relevance weighted discriminant analysis is proposed in this paper with some interesting characteristics. First, the proposed method has shown its effectiveness in dealing with a small sample size problem when using the regularized linear discriminant analysis (RLDA) technique and Kernel theory. Second, a new computation method is proposed to solve the complicated and inefficient computation procedure problem in the traditional RLDA technique while using the cross-validation method. The experimental results indicate that the proposed algorithm shows better performance than the other methods.
DOI : 10.1007/s11220-019-0258-7
Anahtar Kelimeler : Face recognition, Linear discriminant analysis (LDA), Kernel relevance weighted discriminant analysis (KRWDA), Regularized linear discriminant analysis (RLDA), Deterministic approach
ISSN: 1557-2064 1557-2072
Sayı: 1
Cilt: 20
19
Machine learning algorithms and applications for sustainable smart grid
Tez

Tez
Open Access
Kaynak :
McGill University
Dergi:
McGill University
Yayıncı:
McGill University
Yazar(lar) :
Di Wu
Konu :
Electrical and Computer Engineering
Yıl :
2018
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
Smart grid is a complex electrical power network comprising different subsystems with alevel of automation enabling the use of renewable energy while maintaining the grid stability and affordability of the energy. With the increasing attention on environment protection and development of sensors, communication, and computation tools, the smart grid concepthas gained a fast development in recent years. It could significantly improve energy efficiency, allow deep decarbonization and protect the environment. Machine learning is of essential importance to enable intelligent power systems. In this thesis, we use three pieces of work to demonstrate how the smart grid can benefit from machine learning algorithms. First, we note that workplace electric vehicle(EV) charging is now supported by more and more companies to encourage EV adoption which is environmentally friendly. In the meantime, renewable energies are becoming animportant power source. We propose to address the challenges of energy management in office buildings integrated with photovoltaic (PV) systems and workplace EV charging with a stochastic programming framework. Two computationally efficient control algorithms,Stochastic Programming and Load forecasting for Energy management with Two stages(SPLET) and Sample Average Approximation based SPLET (SAA SPLET) are proposed. Secondly, accurate electricity load forecasting is of crucial importance for power system operation and smart grid energy management. Multiple kernel learning (MKL) is suitable for electricity load forecasting, because this type of method provides more flexibility than traditional kernel methods. However, conventional MKL methods usually lead to complex optimization problems. At the scale of residential homes, another important aspect of this application is that there may be very little data available to train a reliable forecasting model for a new home, while at the same time we may have prior knowledge learned from other homes. In particular, we first adopt boosting to learn an ensemble of multiple kernel regressors, and then we further extend this framework to the context of transfer learning when limited data is available for target homes. Finally, we aim to tackle home energy management without knowing the system dynamics. We propose to formalize home energy management, including buying energy from or selling energy back to the power grid and EV charging scheduling as a Markov Decision Process (MDP) and propose two model-free reinforcement learning based control algorithms to address it. The objective for the proposed algorithms is to minimize the long-term operating cost. Simulation results are presented with real-world data and show that the proposed algorithms can significantly reduce the electricity cost as well as peak power consumptions of the home.
Sınıflandırma :
20
Drug-eluting stent implantation versus coronary artery bypass grafting in smoking patients with three-vessel coronary disease
Dergi Makalesi

Dergi Makalesi
Kaynak :
Science Direct
Dergi:
International Journal of Cardiology
Yayıncı:
Elsevier
Yazar(lar) :
DI WU
Yıl :
2009
DI WU
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
DOI : 10.1016/j.ijcard.2009.09.010
ISSN: 0167-5273
Cilt: 137
Sayfa: S3-S4
Sınıflandırma :
21
The symmetry-breaking pattern of scalars in low dimension representations
Dergi Makalesi

Dergi Makalesi
Open Access
Kaynak :
Directory of Open Access Journals (DOAJ)
Dergi:
Nuclear Physics B
Yazar(lar) :
Dan-di Wu
Yıl :
1982
Dan-di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
We discuss the minimum problem of an SU(n) symmetric potential which has number of Higgs in fundamental, adjoint, second-rank symmetric and antisymmetric tensor representations. When there is only one scalar in the adjoint or tensor representation, the surviving symmetry cannot be chosen arbitrarily small by adjusting the parameters in the potential. When there is one more adjoint or tensor representation, the surviving symmetry after symmetry breaking can be diminished to nothing. However, when the two higher dimension representation scalars are diagonalized or quasi-diagonalized simultaneously at the local minimum, the surviving symmetry exists. We give the conditions for the existence of such a local minimum and its symmetry-breaking pattern. Our method is to transfer these problems to the relative orientation of vectors and the number of different eigenvalues.
Cilt: 199
Sayı: 3
Sayfa: 523 - 549
Sınıflandırma :
22
Assessing resource transactions in partnership networks: US 100,000 Strong network of public diplomacy
Dergi Makalesi

Dergi Makalesi
Kaynak :
Science Direct
Dergi:
Public Relations Review
Yayıncı:
Elsevier
Yazar(lar) :
Di Wu
Yıl :
2016
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
Studies on relations and networks in both public diplomacy and public relations have been focusing on the project implementation. Largely ignored is the foundational stage of resource gathering before implementation that also involves relationship management. This paper applies the social network analysis to examine the 100,000 Strong partnership network for study abroad in China that facilitates the transaction of necessary resources to support US public diplomacy implementation. The findings of the research suggest that the 100,000 Strong Foundation, as the network builder, has successfully established channels to mobilize resources through opportunity recognition, information arbitrage, and innovativeness creation. Other network actors also obtained various levels of power from the network structure, which may ultimately contribute to public diplomacy. This study offers a new theoretical and methodological framework to study relations and networks in public diplomacy and public relations, while informing some practical insights.
DOI : 10.1016/j.pubrev.2015.11.001
Anahtar Kelimeler : Public diplomacy, Partnership network, Resource transaction, Social network analysis
ISSN: 0363-8111
Sayı: 1
Cilt: 42
Sayfa: 120-134
Sınıflandırma :
23
Oral epithelial cell reaction and Invisalign treatment
Dergi Makalesi

Dergi Makalesi
Kaynak :
Science Direct
Dergi:
American Journal of Orthodontics and Dentofacial Orthopedics
Yayıncı:
Elsevier
Yazar(lar) :
Di Wu
Yıl :
2014
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
DOI : 10.1016/j.ajodo.2014.03.004
ISSN: 0889-5406
Sayı: 5
Cilt: 145
Sayfa: 551
Sınıflandırma :
Biyotıp %100
Viroloji %71
24
Online position recognition and correction method for sports athletes
Dergi Makalesi

Dergi Makalesi
Kaynak :
Science Direct
Dergi:
Cognitive Systems Research
Yayıncı:
Elsevier
Yazar(lar) :
Di Wu
Yıl :
2018
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
In swimming, the correct recognition and correction of the wrong posture of the swimmer can improve the training quality of the athletes on weekdays. When the posture recognition is corrected, the affine deformation of the human body is easy to occur in the course of swimming. The traditional method is to extract these feature points and compare them with the correct posture to realize the recognition and correction of the posture. Due to the failure to detect and correct the wrong posture of athletes in real time, a method of position recognition and correction for swimmers with depth image bone tracking is proposed, and the threshold method is used to preprocess the image. The kalian filter is used to filter the collected image, Ago Si distribution function is used to obtain the action feature points from the filtered image, and the marginal point and the action feature point with low brightness are screened out by surf method. The Euclidean distance method is used to determine the distance between two adjacent feature points, and the feedback monitoring principle is used to identify and correct the wrong posture. The simulation results show that the improved pose recognition and correction method for skeletal tracking in depth image is improved. It can track and monitor the movement of athletes and complete the detection and recognition of swimming posture with high accuracy and strong stability.
DOI : 10.1016/j.cogsys.2018.07.002
Anahtar Kelimeler : Research, Simulation, Positioning recognition, Correction method, Swimming athletes
ISSN: 1389-0417
Cilt: 52
Sayfa: 174-181
Sınıflandırma :
25
Adaptive finite difference for seismic wavefield modelling in acoustic media
Dergi Makalesi

Dergi Makalesi
Kaynak :
Springer Nature
Dergi:
Scientific Reports
Yayıncı:
Springer Science and Business Media LLC
Yazar(lar) :
Gang Yao , Di Wu , Henry Alexander DebensGang Yao , Di Wu , Henry Alexander Debens
Yıl :
2016
Di Wu Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
DOI : 10.1038/srep30302
ISSN: 2045-2322
Sayı: 1
Cilt: 6
26
supp1-3168969.pdf
Tamamlayıcı Parça

Tamamlayıcı Parça
Kaynak :
IEEE Xplore
Yazar(lar) :
Di Wu
Di Wu
Yayıncı Web Sitesi
Kaydet Alıntıla
DOI : 10.1109/tnse.2022.3168969/mm1
27
Research on target tracking method of sports video based on multi-template matching
Konferans Bildirileri

Konferans Bildirileri
Kaynak :
IEEE Xplore
Yazar(lar) :
Di Wu
Konu :
Computing and Processing
Yıl :
2020
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
The video tracking method based on single template matching is affected by the shape and transformation of single template, resulting in large tracking error and poor tracking effect. In this paper, a method of object tracking in sports video based on multi template matching is proposed. After preprocessing the video image, the background difference is used to detect the target in the video. Based on the selected benchmark template, the matching template is generated by multi-level geometric transformation and the template updating strategy is formulated. Extract the features of the template and image, and complete the tracking of sports video target by calculating the matching degree between multiple templates and image features. Through the contrast experiment, it is proved that the multi template matching tracking method has the advantages of short tracking time, high precision and better tracking effect.
DOI : 10.1109/icvris51417.2020.00027
Anahtar Kelimeler : Target tracking, Video tracking, Shape, Machine vision, Design methodology, Virtual reality, Feature extraction, feature extraction, image matching, image motion analysis, image sequences, object detection, object tracking, sport, target tracking, video signal processing, sports video target, matching degree, multiple templates, image features, multitemplate matching tracking method, short tracking time, target tracking method, video tracking method, single template matching, tracking error, poor tracking effect, object tracking, video image, selected benchmark template, matching template, multilevel geometric transformation, template updating strategy, multi-template matching, Sports videos, Target tracking, Background difference
28
Building Interactive Three-Dimensional Virtual Electrostatic Induction Generator and Design of Discharge Experiment
Konferans Bildirileri

Konferans Bildirileri
Kaynak :
IEEE Xplore
Yazar(lar) :
Di Wu
Konu :
Computing and Processing
Yıl :
2013
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
When constructing sophisticated 3D interactive apparatus with VRML, a method is usually adopted that is manipulating another object with a selected one. Therefore, the way of achieving the linkage movement of three-dimensional objects on website was crucial. Adjustment of the apparatus for complex interaction can not simply be operated with VRML itself. Using VRML and combining with JavaScript programming, this article completed the construction of a three-dimensional virtual electrostatic induction generator with interactive control functions; also completed the development of the discharge demonstration experiment; and achieved interactive and linkage control functions to the complex motions.
DOI : 10.1109/iccis.2013.310
Anahtar Kelimeler : Discharges (electric), Virtual reality, Generators, Three-dimensional displays, Electrostatic induction, Educational institutions, asynchronous generators, design of experiments, electric machine analysis computing, electrostatic discharge, interactive systems, Java, virtual reality, interactive three-dimensional virtual electrostatic induction generator, design of discharge experiment, 3D interactive apparatus, VRML, three-dimensional objects, JavaScript programming, interactive control functions, linkage control functions, complex motions, VRML, Interactive, 3D, Generator, JavaScript
29
Potential impacts of aggregator-controlled plug-in electric vehicles on distribution systems
Konferans Bildirileri

Konferans Bildirileri
Kaynak :
IEEE Xplore
Yazar(lar) :
Di Wu
Konu :
Communication, Networking and Broadcast Technologies, Components, Circuits, Devices and Systems, Computing and Processing
Yıl :
2011
Di Wu
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
This paper presents potential impacts on distribution systems from light-duty plug-in electric vehicles (PEVs), when these are under the control of aggregators who desire to maximize their energy trading-related profits. The electric load characteristics of light-duty PEVs are developed using the travel pattern from the 2009 National Household Travel Survey. This PEV load is added to the existing non-PEV load within one of the prototypical feeders developed by the Pacific Northwest National Laboratory.
DOI : 10.1109/camsap.2011.6135898
Anahtar Kelimeler : Vehicles, Power demand, Power transformer insulation, Electricity, Forecasting, Substations, electric vehicles, power distribution lines, aggregator-controlled plug-in electric vehicles, distribution systems, light-duty plug-in electric vehicles, energy trading-related profits, electric load characteristics, Pacific Northwest National Laboratory, prototypical feeders, Aggregator, plug-in electric vehicles, power distribution, travel pattern
30
supp1-3168939.pdf
Tamamlayıcı Parça

Tamamlayıcı Parça
Kaynak :
IEEE Xplore
Yazar(lar) :
Di Wu
Konu :
Communication, Networking and Broadcast Technologies, Computing and Processing, Signal Processing and Analysis
Di Wu
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Kaydet Alıntıla
With the growth of participating clients, the centralized parameter server (PS) will seriously limit the scale and efficiency of Federated Learning (FL). A straightforward approach to scale up the FL system is to construct a Parallel FL (PFL) system with multiple parallel PSes. However, it is unclear whether PFL can really accelerate FL or reduce the training time of FL. Even if the answer is yes, it is non-trivial to design a highly efficient parameter average algorithm for a PFL system. In this paper, we propose a completely parallelizable FL algorithm called P-FedAvg under the PFL architecture. P-FedAvg extends the well-known FedAvg algorithm by allowing multiple PSes to cooperate and train a learning model together. In P-FedAvg, each PS is only responsible for a fraction of total clients, but PSes can mix model parameters in a dedicatedly designed way so that the FL model can well converge. Different from heuristic-based algorithms, P-FedAvg is with theoretical guarantees. To be rigorous, we theoretically analyze the convergence rate of P-FedAvg in terms of the number of conducted iterations, the communication cost of each global iteration and the optimal weights for each PS to mix parameters with its neighbors. Based on theoretical analysis, we conduct a case study on five typical overlay topolgoies formed by PSes to further examine the communication efficiency under different topologies, and investigate how the overlay topology affects the convergence rate, communication cost and robustness of a PFL system. Lastly, we perform extensive experiments with real datasets to verify our analysis and demonstrate that P-FedAvg can significantly speed up FL than traditional FedAvg and other competitive baselines. We believe that our work can help to lay a theoretical foundation for building more efficient PFL systems.
DOI : 10.1109/tnet.2022.3168939/mm1
Anahtar Kelimeler : Convergence, Collaborative work, Topology, Servers, Costs, Machine learning algorithms, Data models, Parallel federated learning, convergence rate, network topology, mixing matrix.

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