21,650 Hits in 1.5 sec

Chen Ran et Zhou Tao : deux types d'éthique animale

François Dubois
2019 Impressions d'Extrême-Orient  
Chen Ran et Zhou Tao : deux types d’éthique animale François Dubois Texte intégral Présentation 1 Chen Ran 陈染  ...  Pour citer cet article Référence électronique François Dubois , « Chen Ran et Zhou Tao : deux types d’éthique animale », Impressions d’Extrême-Orient [En ligne], 10 | 2019, mis en  ... 
doi:10.4000/ideo.1290 fatcat:a7okwhwiyjgijomvgmlsygkojq

Gr_G, Ran(X) is reduced [article]

James Tao
2021 arXiv   pre-print
This implies that every map from an affine k-scheme to Gr_G, Ran(X) factors through a reduced quasi-projective k-scheme.  ...  We show that the Beilinson–Drinfeld affine Grassmannian Gr_G, Ran(X) is the presheaf colimit of the reduced ind-schemes (Gr_G, X^I)^red for finite sets I.  ...  Gr T,Ran(X) × Ran(X) Gr T,Ran(X) ∆ − → Gr T,Ran(X) × Gr T,Ran(X) mult ′ −−−→ Gr 4.5. Changing the base curve.  ... 
arXiv:2011.01553v2 fatcat:vuix7iney5a2xf4we6mg3wlo2a

Nghiên cứu chế tạo vữa cường độ cao siêu rắn nhanh trên cơ sở chất kết dính hỗn hợp xi măng và calcium aluminate

Nguyễn Công Thắng, Nguyễn Văn Tuấn, Bùi Thế Anh
2021 Journal of Science and Technology in Civil Engineering (STCE) - NUCE  
Mục tiêu nghiên cứu này là đánh giá ảnh hưởng của phụ gia rắn nhanh aluminat canxi vô định hình (ACA) đến một số tính chất của chất kết dính và vữa cường độ cao.  ...  Các kết quả nghiên cứu cho thấy ACA đóng vai trò là một loại phụ gia giúp thúc đẩy quá trình đông kết và đóng rắn của chất kết dính và vữa cường độ cao.  ...  Có thể sử dụng kết hợp phụ gia ACA và TA để chế tạo vữa cường độ cao rắn nhanh với cường độ nén đạt trên 20 MPa sau 4h, cường độ nén ở 7 ngày đạt trên 50MPa và ở 28 ngày đạt trên 70 MPa.  ... 
doi:10.31814/stce.huce(nuce)2021-15(6v)-07 fatcat:w3o3nczobrbrhbs6zwfmrbkkga

Fundamental Limits of Decentralized Caching in Fog-RANs with Wireless Fronthaul [article]

Fan Xu, Meixia Tao
2018 arXiv   pre-print
This paper aims to characterize the synergy of distributed caching and wireless fronthaul in a fog radio access network (Fog-RAN) where all edge nodes (ENs) and user equipments (UEs) have a local cache  ...  DELIVERY SCHEME FOR 3 × 3 FOG-RAN In this section, we use a Fog-RAN with N T = N R = 3 to illustrate the proposed delivery scheme.  ...  Fog-RAN with Wireless Fronthaul We consider a Fog-RAN as shown in Fig 1, where there are N T (N T ≥ 2) ENs, N R (N R ≥ 2) UEs, and the ENs are connected to a macro base station (MBS), or a cloud server  ... 
arXiv:1805.03613v1 fatcat:bxcamnfyozbobiamugytqv333u

Cable knots do not admit cosmetic surgeries [article]

Ran Tao
2018 arXiv   pre-print
Two Dehn surgeries on a knot are called purely cosmetic if their surgered manifolds are homeomorphic as oriented manifolds. Gordon conjectured that non-trivial knots in S^3 do not admit purely cosmetic surgeries. In this article, we confirm this conjecture for cable knots.
arXiv:1804.02210v1 fatcat:6spxbun7hjc5ja5pf2ca3f5zdm

Tracking for Half an Hour [article]

Ran Tao, Efstratios Gavves, Arnold W.M. Smeulders
2017 arXiv   pre-print
Long-term tracking requires extreme stability to the multitude of model updates and robustness to the disappearance and loss of the target as such will inevitably happen. For motivation, we have taken 10 randomly selected OTB-sequences, doubled each by attaching a reversed version and repeated each double sequence 20 times. On most of these repetitive videos, the best current tracker performs worse on each loop. This illustrates the difference between optimization for short-term versus
more » ... tracking. In a long-term tracker a combined global and local search strategy is beneficial, allowing for recovery from failures and disappearance. Most importantly, the proposed tracker also employs cautious updating, guided by self-quality assessment. The proposed tracker is still among the best on the 20-sec OTB-videos while achieving state-of-the-art on the 100-sec UAV20L benchmark. On 10 new half-an-hour videos with city bicycling, sport games etc, the proposed tracker outperforms others by a large margin where the 2010 TLD tracker comes second.
arXiv:1711.10217v1 fatcat:qc4qmgivbre4tch2tbxouc54cy

Siamese Instance Search for Tracking [article]

Ran Tao, Efstratios Gavves, Arnold W.M. Smeulders
2016 arXiv   pre-print
In this paper we present a tracker, which is radically different from state-of-the-art trackers: we apply no model updating, no occlusion detection, no combination of trackers, no geometric matching, and still deliver state-of-the-art tracking performance, as demonstrated on the popular online tracking benchmark (OTB) and six very challenging YouTube videos. The presented tracker simply matches the initial patch of the target in the first frame with candidates in a new frame and returns the
more » ... similar patch by a learned matching function. The strength of the matching function comes from being extensively trained generically, i.e., without any data of the target, using a Siamese deep neural network, which we design for tracking. Once learned, the matching function is used as is, without any adapting, to track previously unseen targets. It turns out that the learned matching function is so powerful that a simple tracker built upon it, coined Siamese INstance search Tracker, SINT, which only uses the original observation of the target from the first frame, suffices to reach state-of-the-art performance. Further, we show the proposed tracker even allows for target re-identification after the target was absent for a complete video shot.
arXiv:1605.05863v1 fatcat:uv5m4526ifambe2vkbjgdrrne4

Single-Cell Transcriptome Comparison of Bladder Cancer Reveals Its Ecosystem

Yongxiang Luo, Tao Tao, Ran Tao, Guixiao Huang, Song Wu
2022 Frontiers in Oncology  
, Tao, Huang and Wu.  ...  T, Tao R, Huang G and Wu S (2022) Single-Cell Transcriptome Comparison of Bladder Cancer Reveals Its Ecosystem.  ... 
doi:10.3389/fonc.2022.818147 pmid:35265520 pmcid:PMC8899594 fatcat:t4uu4capzfa4pgdipj5wcgdxx4

Statistical Inference on Semiparametric Spatial Additive Model

Chuanhua Wei, Ran Yan, Tao Tao
2020 Journal of Mathematics Research  
There has been a growing interest on using nonparametric and semiparametric modelling techniques for the analysis of spatial data because of their powerfulness in extracting the underlying local patterns in the data. In this study, stimulated by the Boston house price data, we apply a semiparametric spatial additive model to incorporation of spatial e ects in regression models. For this semiparametric model, we develop a linear hypothesis test of parametric coecients as well as a test for the
more » ... istence of the spatial e ects. For the problem of variable selection, the adaptive Lasso method was applied. Monte Carlo simulation studies are conducted to illustrate the finite sample performance of the proposed inference procedures. Finally, an application in Boston housing data is studied.
doi:10.5539/jmr.v12n2p1 fatcat:4cxq62rfvfbq5nchuua53jb3q4

Human identification based on radar micro-Doppler signatures separation

Tao Shan, Xingshuai Qiao, Ran Tao
2019 Electronics Letters  
In this Letter, the authors propose a method for personnel recognition using deep convolutional neural networks (DCNNs) based on human micro-Doppler (m-D) signal separation. In which, the m-D separation algorithm is firstly performed to separate m-D signal induced by limbs movement and Doppler signal caused by torso motion, which can highlight the difference contained limbs' m-D signatures between the same activity of different people. Afterwards, a five-layer DCNN is used to learn the
more » ... features directly from the separated m-D spectrogram of walking human and then implement human identification task. The method is validated on real data measured with a 5.8 GHz radar system. Experimental results show that an average recognition accuracy of about 90% can be achieved for different human group sizes.
doi:10.1049/el.2019.3380 fatcat:sbbicbk5mjcmbbndkcudwhd6iq

Visual Concept Detection and Real Time Object Detection [article]

Ran Tao
2011 arXiv   pre-print
Bag-of-words model is implemented and tried on 10-class visual concept detection problem. The experimental results show that "DURF+ERT+SVM" outperforms "SIFT+ERT+SVM" both in detection performance and computation efficiency. Besides, combining DURF and SIFT results in even better detection performance. Real-time object detection using SIFT and RANSAC is also tried on simple objects, e.g. drink can, and good result is achieved.
arXiv:1104.0582v1 fatcat:zaideow6ljdsdbbgift3hwk3ii

NHERF1 inhibits proliferation of triple-negative breast cancer cells by suppressing GPER signaling

Yan Wang, Zhiqiang Peng, Ran Meng, Tao Tao, Qiqi Wang, Chunjuan Zhao, Hua Liu, Ran Song, Junfang Zheng, Qiong Qin, Junqi He
2017 Oncology Reports  
G protein-coupled estrogen receptor (GPER) signaling is activated in triple-negative breast cancer (TNBC); however, the detailed mechanisms of its regulation remain unclear. The present study aimed to elucidate the molecular mechanisms involved in GPER activation in TNBC. In MDA-MB-231 cells, a TNBC cell line, NHERF1 interaction with GPER was verified by co-immunoprecipitation and immunofluorescent staining assays. Overexpression of NHERF1 in MDA-MB-231 cells inhibited GPER-mediated
more » ... n and phosphorylation of ERK1/2 and Akt. Furthermore, NHERF1 expression levels were negatively correlated with the gene signatures of GPER activation, ERK1/2 and Akt signaling, and cell proliferation in early stage of TNBC tumors from the TCGA data set. Taken together, NHERF1 inhibited the activation of GPER-mediated signaling and suppressed the proliferation of triple-negative breast cancer cells. Loss of NHERF1 expression may play a pivotal role in the early stage of TNBC carcinogenesis.
doi:10.3892/or.2017.5649 pmid:28535016 fatcat:w2zp5wwifjgpfbmv5um6hesk4y

An infinite family of m-ovoids of Q(4,q) [article]

Tao Feng, Ran Tao
2019 arXiv   pre-print
In this paper, we construct an infinite family of q-1/2-ovoids of the generalized quadrangle Q(4,q), for q≡ 1 (mod 4) and q>5. Together with the examples given by Bamberg et al. and constructions provided by Feng et al., this establishes the existence of q-1/2-ovoids in Q(4,q) for each odd prime power q.
arXiv:1905.06085v2 fatcat:ioqyo776cnfrvkxcoclqpkprbe

A Robust Effect Size Index

Simon Vandekar, Ran Tao, Jeffrey Blume
2020 Psychometrika  
Effect size indices are useful tools in study design and reporting because they are unitless measures of association strength that do not depend on sample size. Existing effect size indices are developed for particular parametric models or population parameters. Here, we propose a robust effect size index based on M-estimators. This approach yields an index that is very generalizable because it is unitless across a wide range of models. We demonstrate that the new index is a function of Cohen's
more » ... d, [Formula: see text], and standardized log odds ratio when each of the parametric models is correctly specified. We show that existing effect size estimators are biased when the parametric models are incorrect (e.g., under unknown heteroskedasticity). We provide simple formulas to compute power and sample size and use simulations to assess the bias and standard error of the effect size estimator in finite samples. Because the new index is invariant across models, it has the potential to make communication and comprehension of effect size uniform across the behavioral sciences.
doi:10.1007/s11336-020-09698-2 pmid:32232646 fatcat:b3nrdc3l5fblhn5jex2e2c7jme

Optimal Designs of Two-Phase Studies

Ran Tao, Donglin Zeng, Dan-Yu Lin
2019 Figshare  
The two-phase design is a cost-effective sampling strategy to evaluate the effects of covariates on an outcome when certain covariates are too expensive to be measured on all study subjects. Under such a design, the outcome and inexpensive covariates are measured on all subjects in the first phase and the first-phase information is used to select subjects for measurements of expensive covariates in the second phase. Previous research on two-phase studies has focused largely on the inference
more » ... edures rather than the design aspects. We investigate the design efficiency of the two-phase study, as measured by the semiparametric efficiency bound for estimating the regression coefficients of expensive covariates. We consider general two-phase studies, where the outcome variable can be continuous, discrete, or censored, and the second-phase sampling can depend on the first-phase data in any manner. We develop optimal or approximately optimal two-phase designs, which can be substantially more efficient than the existing designs. We demonstrate the improvements of the new designs over the existing ones through extensive simulation studies and two large medical studies. Supplementary materials for this article are available online.
doi:10.6084/m9.figshare.9976898.v2 fatcat:hevrs63uurbbtop6znun5p2sl4
« Previous Showing results 1 — 15 out of 21,650 results