The purpose of this article is to inform criminological researchers about tobit regression, an alternative regression model that deserves more attention in this field. Tobit regression is intended for ...

为解决高维左截尾数据在分布式环境下的变量选择难题，研究人员创新性地将迭代硬阈值法(IHT)应用于Tobit模型，开发出具有通信效率的分布式算法。理论证明该方法在少量通信轮次下可达近似极小极大最优收敛速率，实证显示其变量选择性能媲美集中式处理，为 ...

Contingent valuation surveys have become an important tool in placing monetary values on non-market goods and amenities. Many policy issues involve evaluation of several alternatives such as different ...