Stochastic gradient descent algorithm preserving differential privacy in MapReduce framework by Yihan YU, Yu FU, Xiaoping WU

“…Aiming at the contradiction between the efficiency and privacy of stochastic gradient descent algorithm in distributed computing environment,a stochastic gradient descent algorithm preserving differential privacy based on MapReduce was proposed.Based on the computing framework of MapReduce,the data were allocated randomly to each Map node and the Map tasks were started independently to execute the stochastic gradient descent algorithm.The Reduce tasks were appointed to update the model when the sub-target update models were meeting the update requirements,and to add Laplace random noise to achieve differential privacy protection.Based on the combinatorial features of differential privacy,the results of the algorithm is proved to be able to fulfill ε-differentially private.The experimental results show that the algorithm has obvious efficiency advantage and good data availability.…”
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5G-oriented information sharing mechanism within D2D clusters by Shaomin WANG, Bin ZHOU

“…Device-to-Device（D2D）communication is an important technology in 5G network.It helps to improve the transmission efficiency of data dissemination services.However,due to the extra signaling overhead caused by D2D communications,currently most of enhanced-multicast solutions cannot solve the contradiction between high-efficient data transmission and low-efficient signaling procedure,so as to reduce the overall performance gain.An intra-cluster D2D information sharing algorithm based on matrix analysis which includes centralized and distributed modes was proposed.The proposed algorithm could significantly reduce D2D retransmission times in clusters by adaptively selecting the optimal transmitters and data packets for D2D multicast retransmission,achieving the aim of reducing signaling overhead and transmission delay.…”
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A Critical Review “Phenomenology and Mysticism” by Yahya Solati

“…Lack of stability in his point of view, inability in sufficient analysis, contradiction in terms, etc. weaken his attitude in this book. …”
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La division sexuelle du travail militant dans les assemblées générales : le cas des mouvements de « sans » by Xavier Dunezat

“…The practices, prescribed in general assembly, are mainly the fact of male militant, but the consideration of the « incidents » and the not prescribed practices widens the real militant work: feminine militant practices are in contradiction with the vision of a more passive feminine commitment. …”
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Resource Allocation of Distributed Heterogeneous Network Based on CoMP Transmission by Jia Yu, Ye Wang, Shaohua Wu, Qinyu Zhang

“…Improving utilization of radio resource is a promising solution to alleviate the contradiction between increasing wireless communications demands and limited radio resources of wireless transmission. …”
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The Antinomy of Kitsch: Kitsch as an Aesthetic Category and an Aesthetic / Art-Crititical Property by Lisa Katharin Schmalzried

“…The key to solving this contradiction is distinguishing between kitsch as an aesthetic category and an aesthetic, art-critical property. …”
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Robust adaptive beamforming algorithm by SONG Xin, WANG Jin-kuan, LIU Fu-lai, WANG Bin

“…The performance of least mean squares（LMS） algorithm degraded dramatically in the presence of even slight steering vector mismatches.In order to overcome the shortage,a novel robust adaptive beamforming algorithm based on the variable diagonal loading technique was proposed.The signal steering vector was obtained via the gradient-descent method and the diagonal loading term was incorporated at each recursive step.Then,the optimal weight vector was de-rived.To account for the contradiction of convergence rate and steady errors,a function between the step size and input signals was built to obtain the variable step size.The proposed algorithm had a low complexity cost without the inverse matrix and eigendecomposition.The proposed algorithm offered faster convergence rate,provided a sufficient robustness against the mismatches and made the mean output array SINR consistently close to the optimal one.The theoretical analysis and simulation results demonstrate that the performance of the proposed algorithm can outperform that of the conventional algorithm.…”
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Conflits et identité en Valgrisenche by Alessandro Celi

“…Although Valgrisenche, a side valley of the Aosta Valley, is considered to be a poor and isolated valley consisting of stones and rocks, its inhabitants are widely known to have considerable wealth. This contradiction is due to the historical trials and tribulations of the area. …”
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Yellow Perils of Robert Heinlein by John Hickman

“…Still revered by an overwhelmingly white, male and ideologically libertarian readership, the “Dean” of American Science Fiction made extensive use of threatening, hateful or contemptible images of East Asians in novels that appeared from the 1930s through the 1960s. The contradiction between Heinlein’s self-portrayal as broad minded and unbiased on issues of race and religion and the descriptions of East Asians as menacing and untrustworthy Others that suffuse his fiction has not been systematically investigated until now. …”
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Eleanor Roosevelt at the United Nations: “Diplomacy from Below” and the Search for a New Transatlantic Dialogue by Raffaella Baritono

“…The paper will explore the intrinsic contradiction which was at the root of ER’ s engagement in the UN. …”
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Écrits comptables et commerce interreligieux : les cas des registres d'Ugo Teralh de Forcalquier et de la compagnie Datini (xive-xve siècles) by Ingrid Houssaye Michienzi, Judith Olszowy-Schlanger

“…This paper considers the tracks of economic exchanges, but also social and cultural ones, through the examination of the journal of Ugo Teralh de Forcalquier of 1330-1332, and of the accounting books of the companies of Francesco Datini settled in Majorca and in Valencia around 1390-1410. Often in perfect contradiction with the normative texts, aiming at a more and more important spatial segregation between the various religious groups, the papers of the practice of business allow historians to present a different interpretation of their relations and to bring to light a scale of common moral values.…”
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Features of perfectionism and narcissism correlation by Anna V. Pushkina

“…Researchers of these phenomena found a lot of related features of these phenomena, however, conducted studies of perfectionism and narcissism shows contradiction: in one study was a direct correlation between these phenomena, other studies have not received the link between perfectionism and narcissism. …”
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Apports de la résilience à la géographie des risques : l’exemple de La Faute-sur-Mer (Vendée, France) by Patrick Pigeon

“…Yet, relying on a field case study, La Faute-sur-Mer disaster, we find that the contradiction may help geographical interpretation. It reveals that resilience, as well as disasters, may not have the same meaning depending on the scale and/or the actors of analysis. …”
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User-centric energy efficiency fairness in backscatter-assisted wireless powered communication network by Yinghui YE, Liqin SHI, Guangyue LU

“…In order to address the unfair user-centric energy efficiency (EE) problem caused by channel difference in the backscatter-assisted wireless powered communication network,a resource allocation scheme was proposed.Firstly,a mixed integer nonconvex fractional programming problem was formulated to maximize the minimum user-centric EE,subject to the quality of service and energy-causality constraints.Based on the generalized fractional programming theory,the original problem was transformed into a mixed integer nonconvex subtraction problem.With the aid of the slack variable,the proof by contradiction,the auxiliary variable and the mixed integer nonconvex subtraction problem were further transformed into an equivalent convex problem.Finally,an iterative algorithm was proposed to obtain the optimal solutions.Computer simulations validated the quick convergence of the proposed iterative algorithm,and that the developed resource allocation scheme efficiently guarantees the fairness among users in terms of EE.…”
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The Blockchain Trilemma: A Formal Proof of the Inherent Trade-Offs Among Decentralization, Security, and Scalability by Souhail Mssassi, Anas Abou El Kalam

“…Our analysis includes a proof by contradiction and computational complexity analysis. …”
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Soundwalking in virtual urban ambiances. Applying Game Engine Technologies in soundscape study by Valerio Signorelli

“…The cause of this contradiction can be attributed, among other factors, by the lack of tools able to qualitatively describe the urban ambiances. …”
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Introduction of Reclaimed Water Utilization and Progress in Frontier Research in Japan by QI Xiaoyuan, HE Kai, YU Haixia, LIU Bingjun

“…Due to population growth and global warming,the contradiction between the supply and demand of water resources is becoming more and more serious.In recent years,reclaimed water utilization has gained widespread attention globally as a way to alleviate water shortage.Compared with natural water resources,reclaimed water has the advantages of being large and stable in quantity,easy to use,and not being constrained by climatic conditions.If urban wastewater is properly treated and reused,it can alleviate the global water shortage to a large extent.Japan,as one of the early adopters of reclaimed water,has accumulated some experience in wastewater reuse.This paper summarized reclaimed water-related policies,treatment technologies,examples in Japan,and the international standard setting.It also outlined reclaimed water measures and the purpose and basic philosophy behind the related policies in Japan,especially the performance evaluation criteria of reclaimed water treatment technology,so as to provide some reference for the utilization and promotion of recycled water in China.…”
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De los candires a Kandire. La invención de un mito chiriguano by Isabelle Combès

“…This paper examines the contradiction between the current use of the term « Kandire » and what the 16th century sources – which are the only ones that actually mention the word – can teach us about it. …”
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Contester par projets. Le cas des monnaies locales associatives by Jérôme Blanc

“…Then, it shows why these initiatives take a project the form and stresses the possible contradiction between project and contestation of neoliberal capitalism. …”
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L’autonomie journalistique et ses limites : enquête pancanadienne auprès d’anciens praticiens by Simon Thibault, Colette Brin, Virginie Hébert, Frédérick Bastien, Tania Gosselin

“…How do we explain this apparent contradiction? Do these surveys allow us to grasp the nuances of the mechanisms likely to limit journalistic autonomy? …”
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