| chickn | chickn-package |
| CHICKN_W1 | Chromatogram Hierarchical Compressive K-means with Nystrom approximation |
| COMPR | Compressive Orthogonal Matching Pursuit with Replacement |
| cumsum_parallel | Cumulative sum computation |
| DrawFreq | Draw frequency vectors |
| EstimSigma | Data variance estimation |
| E_parallel | Euclidean distance |
| gamma_estimation | Kernel parameter estimation |
| GenerateFrequencies | Frequency vector construction |
| hcc_parallel | hcc_parallel |
| Nystrom_kernel | Nystrom kernel approximation |
| Preimage | Preimage |
| Sketch | Sketch |
| UPS2 | UPS2 dataset |
| W1_parallel | Wasserstein-1 distance |