Chin-Chang Yang

**Summary:** KataGo harnesses the advanced capabilities of Apple Silicon through the integration of the [Metal Performance Shaders Graph](https://developer.apple.com/documentation/metalperformanceshadersgraph) and [CoreML](https://developer.apple.com/documentation/coreml). This integration empowers KataGo with GPU acceleration and compatibility with...

Potential Division by Zero in `searchexplorehelpers.cpp`

2

In the file `cpp/search/searchexplorehelpers.cpp`, we have the following line: ```cpp parentUtilityStdevFactor = 1.0 + searchParams.cpuctUtilityStdevScale * (parentUtilityStdev / searchParams.cpuctUtilityStdevPrior - 1.0); ``` During the process of searching for optimal parameters,...

https://github.com/ChinChangYang/RobustOptimizer/blob/7e184b3335025ba796b9bf2a138f785b91b56c22/solver/soea/SPS_L_SHADE_EIG/SPS_L_SHADE_EIG.m#L451 In this line, the loop condition is `i == r1 or r1 == r2`. Shouldn't it be `i == r2 or r1 == r2`?

Currently, the Cauchy random number generator is invoked for at least NP times in a generation. Please invoke the Cauchy random number generator to allocate a large number of the...

When an algorithm is early terminated, the padding FC should be zeros.

Currently, the computational overhead on output updates is too high to precisely determine the computational complexity of the evolutionary algorithm. Please check every algorithm and reduce the computational overhead if...

Some of objective functions have tons of the same function values. TolFun may be zero, and the algorithm is terminated without appropriately evolving the vectors. Please disable TolFun for all...

Currently, some of the solvers do not have the configuration of initial population. Please introduce an input option for the initial population.

High Numerical Errors in Mish Activation with FLOAT16 Precision on Neural Engine

3

## 🐞Describing the bug The built-in Mish activation function in `coremltools` introduces significant numerical errors in Core ML models when using 16-bit floating point precision (FLOAT16) on configurations with `ComputeUnit=CPU_AND_NE`....

Fix the high numerical error in mish activation https://github.com/apple/coremltools/issues/2359. **Algorithm:** ``` e = exp(x) mish = x / (1 + 2 / (e * (e + 2))) ``` **Evaluation:** In...