Multiview clustering method for view-unaligned data by Ao LI, Cong FENG, Yutong NIU, Shibiao XU, Yingtao ZHANG, Guanglu SUN

“…A new challenge for multi-view learning was posed by corrupted view-correspondences.To address this issue， an effective multi-view learning method for view-unaligned data was proposed.First，to capture cross-view latent affinity in multi-view heterogenous feature spaces，representation learning was employed based on multi-view non-negative matrix factorization to embed original features into a measurable low-dimensional subspace.Second, view-alignment relationships were modeled as optimal matching of a bipartite graph, which could be generalized to multiple-views situations via the proposed concept reference view.Representation learning and data alignment were further integrated into a unified Bi-level optimization framework to mutually boost the two learning processes, effectively enhancing the ability to learn from view-unaligned data.Extensive experimental results of view-unaligned clustering on three public datasets demonstrate that the proposed method outperforms eight advanced multiview clustering methods on multiple evaluation metrics.…”
Get full text

Voir les fantômes. Sentir la multiplicité temporelle de la ville grâce aux œuvres d’art by Estelle Grandbois-Bernard

“…Our cities are populated of multiple time frames, inhabited by memories, dreams and expectations of the individuals who make them live and buildings that shape them. …”
Get full text

Joint Angles and Mutual Coupling Estimation Algorithm for Bistatic MIMO Radar by Jianfeng Li, Xiaofei Zhang

“…We study the problem of angle estimation for a bistatic multiple-input multiple-output (MIMO) radar with unknown mutual coupling and proposed a joint algorithm for angles and mutual coupling estimation with the characteristics of uniform linear arrays and subspaces exploitation. …”
Get full text

Performance analysis of zero-forcing coordinated MIMO transmission in interference channels by Hai-rong WANG, Jian DONG, Yong-ming HUANG, ANGLV-xi Y

“…The performance of the zero-forcing (ZF) coordinated transmit strategy in multiple-input multiple-output (MIMO) interference channels was investigated.With the goal to derive analytical expression of its performance metric such as the sum rate and the outage probability,the asymptotic behavior of the performance metric was examined with the MIMO dimension tending to infinity.Using the random ma ix theory,an asymptotic estimate of all the eigenvalues of the effective channel matrix in the ZF coordinated transmit strategy was first proposed.Based on that,two closed-form expressions of the sum rate were derived,from which the scaling law of the sum rate with the MIMO dimension was obtained.Furthermore,using the multivariate statistics about the probability density distribution of the minimum eigenvalue of a Wishart matrix,the analytical expression of the outage probability for the coordinated transmit scheme was achieved under two special cases.Simulation results show that the proposed tical expression of the performance metric is valid not only in the large-dimension regime,but also in the normal-dimension regime.…”
Get full text

Positioning and Navigation Using IMUs and Low-Cost Sensors by Patrick Grates

“…A fresh approach uses multiple inertial measurement units (IMUs), three spinning and one unspun, as well as navigation aids for a comprehensive navigation solution. …”
Get full text

A Gran Amazonía no século 21: infraestruturas e desafios da integração em múltiplas escalas by Thais Virga, Wanderley Messias da Costa

“…The issue of transport infrastructure in Gran Amazonía involves a complexity of actors and socio-spatial dimensions that give this immense region a prominent role in the face of multiple scales of actions and impacts that transform it in an unprecedented way in this century. …”
Get full text

Research on Trajectory Planning of Fermented Grains Grasping Mechanical Arms by Xuan Liu, Zhaomin Wu, Chang Wang, Jianhua Zhang

“…Aiming at the problem that multiple grabbing is required for the discharging work， a joint division strategy is proposed. …”
Get full text

Deep reinforcement learning-based resource joint optimization for millimeter-wave massive MIMO systems by LIU Qingli, LI Xiaoyu, LI Rui

“…Aiming at the problem of low throughput and energy efficiency caused by limited wireless resources, huge power consumption, and mutual constraints between energy efficiency and system capacity in millimeter-wave large-scale multiple-input multiple-output systems, a resource co-optimization method based on deep reinforcement learning was proposed. …”
Get full text

Multiuser cyclic shift keying spread spectrum underwater acoustic communication by Cheng-bing HE, Shao-jing JING, Fei HUA, Rui XI, Rui-yu ZHANG, Wen-tao SHI, Qun-fei ZHANG

“…Aiming at the problem of low data rate and high receiver complexity of existing direct sequence spread spectrum code division multiple access (DS-CDMA),a novel code division multiple access (CDMA) using cyclic shift keying (CSK) signaling,namely CSK-CDMA,was proposed for multiuser underwater acoustic communication.The proposed method used the cyclic correlation characteristic of spread spectrum signals with M-ary modulation to provide a higher data rate than conventional.Passive time reversal technology was employed to suppress inter-code interference between users and the co-channel interference.The quasi-orthogonality of spread spectrum code was used to improve the processing gain.Multiuser communications are demonstrated with lake experimental recorded data under the condition of 5.27 km distance and complex multipath interference.The data rate is 39 bit/s/user for 6 users with bit error rate around 10^-2～10^-4.…”
Get full text

Uplink assisted downlink channel estimation method of extra-large scale MIMO-OTFS system by Xumin PU, Kaiyuan DENG, Qianbin CHEN

“…A low complexity downlink channel estimation method for high-speed mobile scenarios was proposed for the extra-large scale multiple-input multiple-output (MIMO) orthogonal time-frequency space (OTFS) system.Different from the existing studies, the proposed method considers the significant spatial non-stationary characteristics of extra-large scale MIMO-OTFS system.Based on the visible path region, an enhanced sparse orthogonal matching pursuit (OMP) algorithm with low complexity was proposed, uplink-assisted downlink channel estimation was achieved using the mapping relationship between the uplink and downlink channels in the frequency-division duplex (FDD) mode.Simulation results show that the proposed uplink-assisted downlink channel estimation method can accurately represent the non-stationary of the system, and achieve significant improvement in the channel estimation performance while reducing the computational complexity , and still perform well in high-mobility IoT scenarios.…”
Get full text

Nonlinear Forecasting Model regarding Evolutional Risk of the PPP Project by Wu Gao

“…The special topic of this paper is to build a nonlinear measuring model between PPP project risk and multiple variables and test it through case analysis. …”
Get full text

Vite in pezzi, corpi integri. Geografie sociali della migrazione e della homelessness a Roma Termini by Silvia Antinori

“…The people encountered embody different biographical parables yet are united by similar processes of marginalization and violence that assault bodies from multiple levels; in macroscopic terms as well as in the watermark of a daily life constituted by imposed lifetimes and forms of abandonment, deeply sedimented. …”
Get full text

Modeling colony collapse disorder in honeybees as a contagion by Christopher M. Kribs-Zaleta, Christopher Mitchell

“…The system of three ordinary differential equations accounts for multiple hive population behaviors including Allee effects and colony collapse. …”
Get full text

Determination of production capacity for open-pit coal mines under uncertainty: A model based on economies of scale. by Shuai Wang, Bo Cao, Runcai Bai, Guangwei Liu

“…Based on this, a mathematical expression for total revenue under the influence of multiple uncertainties is formulated, and the optimal capacity range is calculated. …”
Get full text

Solving a North-type energy balance model using boundary integral methods by A. Samuelsberg, P. K. Jakobsen

“…Subsequently, we test the proposed method by solving multiple North-type EBMs with a zonally symmetric continent featuring an altered ice-albedo feedback dynamic. …”
Get full text

Dynamics of water pollution concentration with uniform and exponential increment of pollutants by Jeevan Kafle, Ranjan Kumar Chaudhary, Bekha Ratna Dangol

Get full text

Outage performance analysis for multi-UAV relay systems with threshold-based DF protocol by Zhenlei DAN, Xuewen WU, Jian OUYANG, Xiaoxiao WANG, Chenwei GU

“…The unmanned aerial vehicle (UAV) relay system has become a hot topic as an effective method for the remote transmission in wireless communications.By taking path loss into account,a relay cooperative transmission system model based on multiple UAVs was established firstly,and the maximum output signal-to-noise ratio (SNR) of the system with threshold-based decode-and-forward (DF) protocol was obtained.Then,by assuming that both the uplink and downlink experience Rician distribution,the closed-form expression for outage probability (OP) of the considered system with multiple UAVs was derived.Furthermore,the asymptotic OP formula at high SNR was also derived to show the diversity order and array gain of the considered system,which were convenient to reveal the effects of system parameters on the outage performance.Finally,the computer simulations verify the correctness of the theoretical analysis,and reveal the effect of the relay number,antenna number and the threshold on the system outage performance,thus the proposed scheme can provide guidance for the system design and application.…”
Get full text

Eleven Primary Melanomas, Colon Cancer, and Atypical Nevi in the Same Patient: A Case Report and Literature Review by Lea Juul Nielsen, Lisbet Rosenkrantz Hölmich

“…As the incidence of cutaneous malignant melanoma increases in the Caucasian population, an increasing population of melanoma survivors is at risk of developing multiple primary melanomas (MPM) as well as secondary primary cancers. …”
Get full text

Therapeutic Application of rTMS in Atypical Parkinsonian Disorders by Chrysi Petsani, Athina-Maria Aloizou, Vasileios Siokas, Lambros Messinis, Eleni Peristeri, Christos Bakirtzis, Grigorios Nasios, Efthimios Dardiotis

“…The terms atypical parkinsonian disorders (APDs) and Parkinson plus syndromes are mainly used to describe the four major entities of sporadic neuronal multisystem degeneration: progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), multiple system atrophy (MSA), and dementia with Lewy bodies (LBD). …”
Get full text

Mortality Associated with Recurrent Extreme Hyperferritinemia in Critically Ill Adolescents by John Scott Baird

“…Recurrent extreme hyperferritinemia—often with multiple organ dysfunction syndrome—was noted in 4 adolescents with systemic inflammation who did not survive their critical illness. …”
Get full text