Pre-processing Road Networks for Graph Partitioning Using Edge-Betweenness Centrality
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Bibliographic record
Abstract
We propose a new pre-processing heuristic for partitioning road networks using multilevel graph partitioning (MGP) implementations. This heuristic is based on the notion that in road networks, edges with high betweenness centralities are often excellent cut-edge candidates. We pre-process the network in such a way that edges with low-betweenness centralities are contracted in the coarsening phase of an MGP algorithm, such that initial partitionings are formed along edges with high betweenness centralities. We find that our implementation of this pre-processing method significantly improves the edgecut when applied to national road networks partitioned using METIS.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.004 | 0.000 |
| Scholarly communication | 0.000 | 0.002 |
| Open science | 0.003 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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