Calculation of abundance factors in hyperspectral imaging using genetic algorithm
Why this work is in the frame
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Bibliographic record
Abstract
Spatial resolution is a limiting factor in satellite imaging systems. It is usually very difficult to successfully interpret objects from a coarse resolution image. Images at such coarse resolutions result in mixed pixels. Mixed-pixel decomposition or spectral unmixing applies to derivation of constituent components, endmembers(EM), and their fractional proportions(abundances) at the subpixel scale. The mathematical intractability of the abundance non-negative constraint results in complex and extensive numerical approaches. Due to such mathematical intractability, many least square error(LSE) based methods are unconstrained and can only produce sub-optimal solutions. In this paper we propose a mixed genetic algorithm and LSE-based EM estimation method (LSEM) to extract the EM matrix and related abundances vectors. We apply the proposed GA-LSEM method to the subject of unmixing hyperspectral data. The experimental results obtained from simulated images show the effectiveness of the proposed method, specifically the robustness to noise.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it