Feature Skeletons-Based Model Retrieval for Bolus Shaping in Cancer Care
Bibliographic record
Abstract
Bolus covers the patient's skin surface in cancer care for desired dose distribution and minimal damage to the healthy tissue. The existing bolus shaping method is mainly a manual process which is inaccurate and inefficient. This paper proposes a model retrieval method based on feature skeletons of the model and model image. Mesh nodes in a bolus model are embedded into a feature space by the spectral analysis. Skeletons are formed from features of the model to build a skeleton base. Visual entropies are applied to detect edges of the model image. The edges are then classified into the object and background pixels for contours of the object using a spectral clustering method. The skeleton of the image is compared with skeletons in the model skeleton base to find the best-matched bolus model using an iterative closest point method. The proposed method is verified in the case studies.
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How this classification was reachedexpand
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 | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".