URC: Unsupervised regional clustering of remote sensing imagery
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Conditional random fields (CRF) have been used extensively for spatially coherent segmentation and classification of images. As a result, may techniques for finding the optimal inference of CRFs have been developed. However, CRFs have seen little use in clustering and segmenting of satellite imagery due to the large number of pixels in satellite images. In this paper we present a means of defining remote sensing imagery as a region based conditional random field (CRF). Unlike the pixel based CRF, our region based CRF can be optimally solved using the latest advancements in CRF inference techniques because the region based CRF is a computationally simpler problem to tackle. To reduce the loss of information when forming the region based CRF, the regions are defined using a superpixel algorithm which decreases the spatial resolution while preserving the original satellite image's structure. Furthermore, unlike previous approaches, we show that the optimal number of clusters in the satellite images can be automatically determined by formulating the number of clusters as part of the CRF cost function. This unsupervised region based approach is a non-parametric formulation which is validated using different imaging modalities: SAR and hyper-spectral imaging.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 it