2024年3月16日 · Results show that MINV is the only method with better performance than INV, by 23% on average and, in 32% of cases, by at least 100%. On the other hand, the accuracy of SLO forecasts is on average 87% worse than INV forecasts.

In INV, the failure ( t = t f) is characterized by an infinite velocity (Ω̇ −1 = 0 or Ω=∞̇). This assumption is underpinned by a theoreti-cal assumption, which is physically not true. Therefore, the mini-mum inverse velocity method (MINV) was introduced by Voight (1988) which includes the failure velocity ( Ω̇ f) to address this limi-

2024年6月17日 · This study provided the first quantitative reliability evaluation of four methods for real-time applications, and using a metric called the reliability fitness index (RFI) ranked them in the following order: slope gradient (SLO), inverse-velocity method (INV), minimum inverse velocity (MINV), and velocity over acceleration (VOA).

结果表明，minv 是唯一比 inv 性能更好的方法，平均提高 23%，在 32% 的情况下至少提高 100%。 另一方面，SLO 预测的准确性平均比 INV 预测差 87%。 与 INV 相比，VOA 结果的误差高出 6.84 至 11.68 倍。

2022年11月1日 · Later, Fukuzono, 1985a, Fukuzono, 1985b, Fukuzono, 1990, following the work of Saito (1969), developed a methodology, known as the inverse velocity method (INV), by experimenting on artificial slopes and using creep theory (Eq. (1)): 1 v = A α − 1 1 α − 1 t f − t 1 α − 1 where v is the landslide velocity, t is time, tf is the failure time, and A...

2024年1月1日 · 结果表明，MINV是唯一一种比INV表现更好的方法，平均比INV提高了23％，在32％的情况下至少提高了100％。 相比之下，SLO的预测精度平均比INV差87％。 VOA的结果误差比INV高6.84到11.68倍。 VOA对测量散布的敏感性非常高，但由于数据滤波技术引起的数据伪迹抵消了滤波的积极作用。 SLO由于其数学配置，对测量散布的不敏感。 最后，通过MINV校准的失效速度，针对每种失效模式进行了介绍，这可以增强加速度起始点的检测，并根据现场设置在 …

2024年3月16日 · ABSTRACT The inverse velocity (INV) method is widely used for predicting the slope failure time. When applying the INV method, the inverse velocity can be assumed to be a linear and non-linear… The prediction of time to slope failure (TOF) is one of the most pivotal concerns for both geological risk researchers and practitioners.

Critical assessment of landslide failure forecasting methods with case histories: a comparative study of INV, MINV, SLO, and VOA

INV (A) returns the inverse matrix for the square matrix A. The inverse A −1 of a square matrix A is the unique matrix such that: $$ A^{-1}A = I = AA^{-1} $$

2023年11月30日 · 在 MATLAB 中，inv 函数是用来计算矩阵的逆矩阵的。 语法为：`inv(A)` 其中，A 表示需要求逆的矩阵。注意，只有方阵才有逆矩阵。 使用该函数时，需要注意以下几点： 1. 如果矩阵 A 不可逆（即行列式为 0），则会...