Brain Tumor Segmentation in MRI Images Using A Modified U-Net Model
Bibliographic record
Abstract
Brain tumor segmentation is an essential process to diagnose and monitor the development of cancerous cells in the brain. Conventional segmentation methods rely on experts who manually label radiology individual images. Meanwhile, deep learning has shown tremendous progress in medical image seg-mentation where minor details are difficult to differentiate. In the paper, we propose a deep learning architecture to automatically segment such radiology images, named UVR-Net model. The proposed architecture is based on the popular U-Net framework which demonstrated its robustness and capabilities in the medical imaging field. Experimental results show that the proposed UVR-Net achieves a Dice score of 0.76, and IOU scores 0.89 compared to the traditional vanilla U-Net architecture by a factor of 11% in terms of Dice score. In addition, we also perform sensitivity analysis for critical parameters and loss functions in the proposed model.
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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".