Showing 1,301 - 1,320 results of 48,762 for search '"informant"', query time: 0.11s Refine Results
  1. 1301

    Pilot allocation based on user location information in massive MIMO systems by Jia-liang DU, Lin YANG, Xin-lei SONG

    Published 2017-08-01
    “…In order to so1ve the prob1em of pi1ot contamination in massive MIMO systems,a pi1ot a11ocation scheme based on user 1ocation information was proposed.The proposed scheme arranged the users according to the po1ar ang1e of the user 1ocation in the po1ar coordinate system with the base station of the ce11 as the po1e,and assigned the pi1ots sequentia11y.Combining with the characteristics of directiona1 antenna,the scheme can reduce the pi1ot contamination and improve the achievab1e rate of the system by contro11ing the mu1tip1exing distance of the pi1ot to a far range.Simu1ation resu1ts show that the proposed scheme can not on1y reduce the pi1ot po11ution between users,but a1so reduce the performance gap between different users and improve the fairness of the system.…”
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    Discussion on the New Marine Application of Space-Integrated-Ground Information Network by Yuhui LI, Yu HUANG, Niwei WANG, Xiaofan XU, Zhou LU

    Published 2020-09-01
    Subjects: “…space-ground integrated information network…”
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    Learning, Portfolio Complexity and Informational Asymmetry in Forecasts of Sell-Side Analysts by Melquiades Pereira de Lima Júnior

    Published 2017-01-01
    “…Our results suggest that the experience with the stock, with the sector and complexity of the portfolio confirmed the learn by doing, but the overall experience showed contradictions due to information asymmetry. Despite anchoring in their peers, analysts achieved significant returns, but showed forecasts with low accuracy. …”
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    Combinatorial Robust Optimization with Decision-Dependent Information Discovery and Polyhedral Uncertainty by Omer, Jérémy, Poss, Michael, Rougier, Maxime

    Published 2024-09-01
    “…Given a nominal combinatorial optimization problem, we consider a robust two-stages variant with polyhedral cost uncertainty, called Decision-Dependent Information Discovery (DDID). In the first stage, DDID selects a subset of uncertain cost coefficients to be observed, and in the second-stage, DDID selects a solution to the nominal problem, where the remaining cost coefficients are still uncertain. …”
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    The Public Opinion Evolution under Group Interaction in Different Information Features by Jing Wei, Yuguang Jia, Yaozeng Zhang, Hengmin Zhu, Weidong Huang

    Published 2022-01-01
    “…In this study, we find that the key figures play the guiding roles in public opinions who undertake the group pressure from information amount. Therefore, we build the cost function on opinion changes to study opinion evolution rules for public persons based on the spreading scope of information and information amount. …”
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