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|
| <h1 id="compare-alternatives">Compare Alternatives</h1> |
| <p>DeTime is useful when the project needs one decomposition workflow across |
| Python, CLI, saved artifacts, and machine-readable metadata. Specialist |
| packages remain the better choice when you only need their deepest family- |
| specific API.</p> |
| <h2 id="before-and-after">Before and after</h2> |
| <div class="pipeline-panel"> |
| <div class="pipeline-flow"> |
| <div class="pipeline-step"> |
| <strong>Specialist glue</strong> |
| <span>different configs, result objects, filenames, and backend rules per package</span> |
| </div> |
| <div class="pipeline-step"> |
| <strong>DeTime layer</strong> |
| <span>one <code>DecompositionConfig</code>, one <code>DecompResult</code>, one CLI artifact contract</span> |
| </div> |
| <div class="pipeline-step"> |
| <strong>Reviewable output</strong> |
| <span>summary/meta/full JSON modes, method catalog, schemas, and reproducible figures</span> |
| </div> |
| </div> |
| </div> |
|
|
| <h2 id="software-matrix">Software matrix</h2> |
| <table> |
| <thead> |
| <tr> |
| <th>Axis</th> |
| <th>DeTime</th> |
| <th><a href="https://www.statsmodels.org/"><code>statsmodels</code></a></th> |
| <th><a href="https://github.com/laszukdawid/PyEMD"><code>PyEMD</code></a></th> |
| <th><a href="https://pywavelets.readthedocs.io/en/latest/"><code>PyWavelets</code></a></th> |
| <th><a href="https://pysdkit.readthedocs.io/en/latest/"><code>PySDKit</code></a></th> |
| <th><a href="https://github.com/ADSCIAN/ssalib"><code>SSALib</code></a></th> |
| <th><a href="https://www.sktime.net/en/stable/"><code>sktime</code></a></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td>Best fit</td> |
| <td>cross-method workflow</td> |
| <td>classical decomposition/statistics</td> |
| <td>EMD-family work</td> |
| <td>wavelet transforms</td> |
| <td>broad signal decomposition</td> |
| <td>SSA-focused work</td> |
| <td>broader time-series ecosystem</td> |
| </tr> |
| <tr> |
| <td>Shared config/result contract</td> |
| <td>yes</td> |
| <td>partial</td> |
| <td>no</td> |
| <td>no</td> |
| <td>partial</td> |
| <td>SSA-specific</td> |
| <td>no</td> |
| </tr> |
| <tr> |
| <td>CLI, batch, profiling</td> |
| <td>yes</td> |
| <td>no</td> |
| <td>no</td> |
| <td>no</td> |
| <td>limited</td> |
| <td>no</td> |
| <td>partial</td> |
| </tr> |
| <tr> |
| <td>Machine-readable catalog/schemas</td> |
| <td>yes</td> |
| <td>no</td> |
| <td>no</td> |
| <td>no</td> |
| <td>no</td> |
| <td>no</td> |
| <td>no</td> |
| </tr> |
| <tr> |
| <td>Multivariate under one surface</td> |
| <td>yes</td> |
| <td>limited</td> |
| <td>family-specific</td> |
| <td>transform-specific</td> |
| <td>yes</td> |
| <td>no</td> |
| <td>partial</td> |
| </tr> |
| <tr> |
| <td>Where it is deeper</td> |
| <td>workflow reproducibility</td> |
| <td>statistical modeling</td> |
| <td>EMD variants</td> |
| <td>wavelet tooling</td> |
| <td>decomposition breadth</td> |
| <td>SSA workflows</td> |
| <td>ecosystem breadth</td> |
| </tr> |
| </tbody> |
| </table> |
| <h2 id="package-by-package-reading">Package-by-package reading</h2> |
| <table> |
| <thead> |
| <tr> |
| <th>Package</th> |
| <th>Use it directly when</th> |
| <th>Use DeTime when</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td><a href="https://www.statsmodels.org/"><code>statsmodels</code></a></td> |
| <td>you need the full statistical modeling stack</td> |
| <td>you want <code>STL</code> / <code>MSTL</code> output in the same contract as other methods</td> |
| </tr> |
| <tr> |
| <td><a href="https://github.com/laszukdawid/PyEMD"><code>PyEMD</code></a></td> |
| <td>you need deeper EMD-family controls</td> |
| <td>you want <code>EMD</code> / <code>CEEMDAN</code> beside SSA, STD, VMD, and CLI artifacts</td> |
| </tr> |
| <tr> |
| <td><a href="https://pywavelets.readthedocs.io/en/latest/"><code>PyWavelets</code></a></td> |
| <td>you need transform-specific wavelet APIs</td> |
| <td>you want wavelet decomposition as one option in a broader workflow</td> |
| </tr> |
| <tr> |
| <td><a href="https://pysdkit.readthedocs.io/en/latest/"><code>PySDKit</code></a></td> |
| <td>you need its broad signal-decomposition catalog</td> |
| <td>you want selected optional multivariate backends behind DeTime metadata and I/O</td> |
| </tr> |
| <tr> |
| <td><a href="https://github.com/ADSCIAN/ssalib"><code>SSALib</code></a></td> |
| <td>you only need SSA-family tooling</td> |
| <td>you want <code>SSA</code> as one flagship method in a cross-family package</td> |
| </tr> |
| <tr> |
| <td><a href="https://www.sktime.net/en/stable/"><code>sktime</code></a></td> |
| <td>you need a large time-series ML ecosystem</td> |
| <td>you want decomposition outputs with DeTime's artifact and schema contract</td> |
| </tr> |
| </tbody> |
| </table> |
| <h2 id="runtime-snapshot">Runtime snapshot</h2> |
| <p>The release evidence includes a reproducible runtime snapshot generated by |
| <code>scripts/generate_performance_snapshot.py</code>. The current committed snapshot was |
| generated on Windows 10, Python 3.11.9, AMD64, with native <code>SSA</code>, <code>STD</code>, |
| <code>STDR</code>, <code>MA_BASELINE</code>, <code>MSSA</code>, <code>VMD</code>, and <code>GABOR_CLUSTER</code> capabilities |
| available.</p> |
| <table> |
| <thead> |
| <tr> |
| <th>Method</th> |
| <th style="text-align: right;">Python mean runtime (ms)</th> |
| <th style="text-align: right;">Native mean runtime (ms)</th> |
| <th style="text-align: right;">Speedup</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td><code>SSA</code></td> |
| <td style="text-align: right;">13.668</td> |
| <td style="text-align: right;">1.906</td> |
| <td style="text-align: right;">7.172x</td> |
| </tr> |
| <tr> |
| <td><code>STD</code></td> |
| <td style="text-align: right;">0.153</td> |
| <td style="text-align: right;">0.024</td> |
| <td style="text-align: right;">6.484x</td> |
| </tr> |
| <tr> |
| <td><code>STDR</code></td> |
| <td style="text-align: right;">0.176</td> |
| <td style="text-align: right;">0.018</td> |
| <td style="text-align: right;">9.916x</td> |
| </tr> |
| <tr> |
| <td><code>MA_BASELINE</code></td> |
| <td style="text-align: right;">0.071</td> |
| <td style="text-align: right;">0.015</td> |
| <td style="text-align: right;">4.771x</td> |
| </tr> |
| <tr> |
| <td><code>MSSA</code></td> |
| <td style="text-align: right;">70.039</td> |
| <td style="text-align: right;">25.727</td> |
| <td style="text-align: right;">2.722x</td> |
| </tr> |
| <tr> |
| <td><code>VMD</code></td> |
| <td style="text-align: right;">50.140</td> |
| <td style="text-align: right;">14.482</td> |
| <td style="text-align: right;">3.462x</td> |
| </tr> |
| <tr> |
| <td><code>GABOR_CLUSTER</code></td> |
| <td style="text-align: right;">2.694</td> |
| <td style="text-align: right;">0.195</td> |
| <td style="text-align: right;">13.806x</td> |
| </tr> |
| </tbody> |
| </table> |
| <p>These numbers are a release smoke snapshot, not a universal benchmark.</p> |
| <h2 id="evidence-appendix">Evidence appendix</h2> |
| <div class="compact-faq"> |
|
|
| <details> |
| <summary>Generated comparison files</summary> |
|
|
| - [`comparison_evidence.json`](assets/generated/evidence/comparison_evidence.json) |
| - [`comparison_capability_matrix.csv`](assets/generated/evidence/comparison_capability_matrix.csv) |
| - [`comparison_install_matrix.csv`](assets/generated/evidence/comparison_install_matrix.csv) |
| - [`comparison_family_fairness.csv`](assets/generated/evidence/comparison_family_fairness.csv) |
| - [`comparison_agent_matrix.csv`](assets/generated/evidence/comparison_agent_matrix.csv) |
| - [`workflow_comparison.json`](assets/generated/evidence/workflow_comparison.json) |
|
|
| Regenerate them with: |
|
|
|
|
| <pre><code class="language-bash">python benchmarks/software_comparison/generate_comparison_evidence.py |
| python examples/workflow_comparisons/compare_specialist_glue_vs_detime.py |
| </code></pre> |
|
|
|
|
| </details> |
|
|
| <details> |
| <summary>Quality and packaging checks</summary> |
|
|
| - `python scripts/check_doc_consistency.py` |
| - `mkdocs build --strict` |
| - `python -m build` |
| - `python scripts/check_dist_contents.py dist/*.tar.gz dist/*.whl` |
| - `python -m twine check dist/*` |
| - `python scripts/release_smoke_matrix.py` |
|
|
| </details> |
|
|
| </div></div> |
| </div> |
| </div> |
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