Collaborative Recommendation for Online Social Networks Based on User Behavior Cognitive by Jin Qi, Bin Xu, Xiaoxuan Hu, Bianjia Xu, Xinglin Xiao

“…Recently，online social network（OSN）has become essential tools for information sharing and communication in people’s work and life.How to cognitive massive，complex，large-area and spatiotemporal association user behavior information and provide personalized re1commendation services have become problems need special attention in development of OSN.Thus，a frame of collaborative recommendation for OSN based on user behavior cognitive was proposed which used collaborative filtering algorithm to provide personalized recommendation services on the basis of analysis of behavior of user characteristics，text information and interest preferences，etc.Experimental results verify that the proposed collaborative recommendation strategy based on user behavior cognitive has good stability and actual application effect.…”
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Research on dynamic migration of virtual machine based on security level by Shuo ZHAO, Xin-sheng JI, Yu-xing MAO, Guo-zhen CHENG, Hong-chao HU

“…Side-channel attacks were the main ways of multi-tenant information leakage in the cloud computing and data center environments.The existing defense approaches based on dynamic migration of virtual machine have long convergence time of migration algorithm and high migration cost.Hence,a dynamic migration of virtual machine based on security level was proposed.Firstly,security level classification of virtual machines was used to reduce the number of migrating virtual machines.Then the corresponding virtual machines embedding strategy was used to reduce the frequency of virtual machines migration.Simulation experiments demonstrate that the proposed approach can reduce convergence time of migration algorithm and migration cost.…”
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Do Millennials have a stronger demand for orange juice? by Yan Heng, Ronald W. Ward, Lisa A. House

“…House and published by the UF/IFAS Food and Resource Economics Department presents the results of a survey examining several generations and their impact on demand for orange juice to find out whether targeting this one is a wise marketing strategy. https://edis.ifas.ufl.edu/fe1089 …”
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Savoirs et actions de jardinage by Jean-Baptiste Poinot

“…Summary transcriptions of these interviews made it possible to define a precise strategy of interventions and planning over time and to identify collective spaces the forms and functionalities of which were not defined beforehand. …”
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Green solutions for removing and storing carbon in urban districts by Fabrizio Tucci, Marco Giampaoletti

“…The issue is of great scientific importance in light of the national and European strategies and policies contained respectively in the National Recovery Plan and the proposed New EU Forest Strategy – Fit for 55, currently pending in the European Parliament. …”
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MOTOR BEARING FAULT DIAGNOSIS BASED ON RELEVANCE VECTOR MACHINE OPTIMIZE BY IMPROVED FRUIT FLY OPTIMIZATION ALGORITHM by WANG HanZhang

“…In order to improve search ability of FOA, reverse cognition strategy was introduced and improved the original FOA algorithm. …”
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Independent task system to develop communicative competence in English with medical purpose. by Belkys Gonzalez Machin, Juana I. Hernández Fernández, Edita Solano López, Julio Peraza Vargas

“…Differentiated taks system constitutes a methodological strategy in the teaching of English with medical purposes through systemic activities using the English native students of the 4^th year of medicine specialty. …”
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Le canard a-t-il coulé la moule du Québec ? Construire un problème de prédation, dépolitiser un échec économique by Antoine Police

“…While the economic and scientific producers focus on the predation problem, the public actors adopt a blame-avoidance strategy. They avoid their responsibility for the choice of a model that has encouraged predation blaming ducks and producers and reducing their material support for the industry.…”
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Robust Control of Electric Vehicle Powertrain Torsional Vibration based on μ-method by Duan Xiaoya, Yu Peng, Zhang Tong, Sun Ling

“…In view of the torsional vibration of an electric vehicle（EV） driveline,based on the blendingμ integrated robust control theory,the control method of driveline is studied.Firstly,the driveline uncertainty model of a central-driven pure EV is established,considering the high-order unmodeled uncertainty of permanent magnet synchronous motor and the parameter perturbation.Then,μ-method is adopted to design the driveline robust controller.Finally,in order to verify the validity of the designed controller,the simulation and calculation are conducted by using Matlab / Simulink.Results show that the control strategy can enhance the robust performance and robust stability of the system,and reduce the possibility of system instability effectively.…”
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La rivière Magpie-Mutehekau shipu en personne by Fabienne Joliet, Azou Joliet-Bidet

“…On a regional and Quebec scale, this is a first that testifies to a synergy between natives (Innu) and non-natives, a strategy of environment and decolonization; on an international scale, it is a third that refers to a paradigm shift and an environmental genuine ontological turning point. …”
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Performance analysis and re-modeling of secondary users in cognitive radio system by Wei LIN, Yu FU, Qin-yu ZHANG, Ye WANG, Sheng WANG

“…A number of errors in the past Markov model and theoretical analysis were discussed in spectrum access based on cognitive radio network (CRN).To imitate the behav ary user (PU) and secondary user (SU) factually,new models for access strategy were presented.The performance of CRN based on different access strategies were reappraised and compared by using matrix geometric theory and event scheduling of discrete events system simulation.Theoretical analysis results and simulation experiments were tally close,which confirms the reliability of proposed models.The access strategies with handoff and channel reservation efficiently decrease the call dropping probability,as while as,increase the blocking probability.And the thought for CRN can reach the maximum in the latter with the optimum number of reserved channels.…”
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Student Models for a Risky Asset with Dependence: Option Pricing and Greeks by Nikolai Leonenko, Anqi Liu, Nataliya Schestyuk

“…We analyse performance of delta hedging strategy using simulated time series data and verify that hedging errors are biased particularly for long-range dependence cases. …”
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Multiple Model ILC for Continuous-Time Nonlinear Systems by Xiaoli Li, Kang Wang, Yang Li

“…In this kind of control strategy, multiple models are established to cover the uncertainty of system; a switching mechanism is used to decide the most appropriate model for system in current iteration. …”
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Research, project, implementation. The case study of the former Riganti Tannery in Rome by Andrea Grimaldi, Valeria Sansoni

“…The contribution also proposes an innovative strategy of collaboration between Institutions, in order to bring the project to the core of an effective process of cultural development.…”
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Pelayanan pembuatan akta kelahiran menuju transformasi digital di kabupaten Bogor by R.Oetje Subagdja

“…This research applies Royyana's thesis (2021) which states that digital transformation is a shift for all institutions involving five indicators: technology adoption, process, structure, human resources and strategy. Bogor Regency Disdukcapil employees act as research informants in this qualitative descriptive research design. …”
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PROSPECTS FOR COMPLETION OF INCOMPLETE BUILDING OBJECTS by A. Kozlovskii, N. Moiseenko

“…Questions of land tenure and allocation of sites under not completed objects, strategy of expenses in this segment, state sale and others are consistently have been analysed. …”
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Numerical Algorithm for Delta of Asian Option by Boxiang Zhang, Yang Yu, Weiguo Wang

“…Our method provides an efficient solution to the hedging strategy with Asian options.…”
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Virtual machine co-residency method on cloud computing platform by Weijie LIU, Li’na WANG, Danlei WANG, Zhengguang YIN, Nan FU

“…If the attacker wants to compromise a target virtual machine on a cloud platform,the malicious virtual machine must be co-resident with the target.Based on this,a virtual machine co-residency method was proposed.The method combined a co-residency detection scheme based on covert channel construction and an automatic virtual machine flooding strategy,and was evaluated on a well-known domestic cloud platform.Experiment shows that the adaptive covert channel can achieve accuracies of 95%,the proposed detection scheme has strong robustness whose false positive rate is less than 5 ‰,the proposed method is versatile and keeps the virtualization isolation barrier intact,which has great potential threat and should be paid great attention and precaution.…”
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Performance analysis of multi-relay DF cooperative communication system based on directional antenna by Mingwei WANG, Huisheng ZHANG, Lixin LI, Lifeng HE

“…In order to achieve reliable communication in multi-relay cooperative communication，the directional antenna combining multi-relay cooperative communication system and optimal relay selection decode-and-forward cooperative strategy was presented.Firstly，the theoretical closed form of outage probability of the communication system using directional antenna operating in the three modes of DT-DR，DT-OR and OT-OR were presented.Then for three kinds mode，the collaboration communication system interrupt probability and signal-to-noise ratio，the number of relay nodes，the antenna gain channel fading efficiency and relationship between the channel capacity were analyzed in numerical simulation.These findings reveal that excellent performance of cooperative communication system with directional antennas could be achieved such as smaller outage probability and improved by best relay nodes and optimal power allocation coefficient.…”
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¿La democratización en contra de los trabajadores? La CUT, el movimiento sindical y el dilema de la transición pactada en Chile by Sebastián Osorio, Franck Gaudichaud

“…Whilst questioning the real import of the "pact-driven transition" towards democracy, as well as the content of the neo-liberal project implemented by the first post-dictatorship government in matters relating to work and employment, this study seeks to explain how the political orientations of the CUT ("United Workers’ Federation") under Patricio Alwin’s presidency may have played a crucial role in the failure of the trade union strategy of the "Concertation" parties and further of the workers’ mobilisations in the following years.…”
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