3,065 research outputs found

    Chinese Stock Market Efficiency of Capital Allocation Function

    Get PDF
    Using the efficiency of capital allocation function to characterize the stock market system efficiency.Using panel data analysis method,from a regional perspective empirical analysisto implement the stock market during the capital allocation function efficiency issue approval system for China.The results show: the efficiency of resource allocation of China stock market is lower,and stock market system is inefficient.Point:Chinese stock market institutional change should transform from government-led to market-oriented and increase penalties for violations to cultivate rational and mature investors in order to achieve the stock market system function better,enhance system efficiency

    You Can Generate It Again: Data-to-text Generation with Verification and Correction Prompting

    Full text link
    Despite significant advancements in existing models, generating text descriptions from structured data input, known as data-to-text generation, remains a challenging task. In this paper, we propose a novel approach that goes beyond traditional one-shot generation methods by introducing a multi-step process consisting of generation, verification, and correction stages. Our approach, VCP(Verification and Correction Prompting), begins with the model generating an initial output. We then proceed to verify the correctness of different aspects of the generated text. The observations from the verification step are converted into a specialized error-indication prompt, which instructs the model to regenerate the output while considering the identified errors. To enhance the model's correction ability, we have developed a carefully designed training procedure. This procedure enables the model to incorporate feedback from the error-indication prompt, resulting in improved output generation. Through experimental results, we demonstrate that our approach effectively reduces slot error rates while maintaining the overall quality of the generated text

    Superconductivity and local-moment magnetism in Eu(Fe0.89_{0.89}Co0.11_{0.11})2_{2}As2_{2}

    Get PDF
    We report the measurements of resistivity and magnetization under magnetic fields parallel and perpendicular to the basal plane, respectively, on a cobalt-doped Eu(Fe0.89_{0.89}Co0.11_{0.11})2_{2}As2_{2} single crystal. We observed a resistivity drop at Tc∼T_c\sim 21 K, which shifts toward lower temperatures under external fields, suggesting a superconducting transition. The upper critical fields near TcT_c show large anisotropy, in contrast with those of other '122' FeAs-based superconductors. Low-field magnetic susceptibility data also show evidence of superconductivity below 21 K. Instead of expected zero-resistance below TcT_c, however, a resistivity reentrance appears at 17 K under zero field, coincident with the magnetic ordering of Eu2+^{2+} moments. Based on the temperature and field dependences of anisotropic magnetization, a helical magnetic structure for the Eu2+^{2+} spins is proposed. External magnetic fields easily changes the helimagnetism into a ferromagnetism with fully polarized Eu2+^{2+} spins, accompanying by disappearance of the resistivity reentrance. Therefore, superconductivity coexists with ferromagnetic state of Eu2+^{2+} spins under relatively low magnetic field. The magnetic and superconducting phase diagrams are finally summarized for both H∥abH\parallel ab and H∥cH\parallel c.Comment: 8 pages, 10 figure
    • …
    corecore