SAMM: Situation Awareness with Machine Learning for Misbehavior Detection in VANET
Bibliographic record
Abstract
Vehicular Ad hoc Network (VANET) is a foundation stone for connected vehicles. As vehicles’ safety depends heavily on the exchanged data’s accuracy, VANET has a low tolerance for false data. The process of intentionally exchanging inaccurate data is called misbehaving. Machine learning (ML)-based solutions were heavily invested in detecting misbehavior messages. However, they also have some limitations with respect to how much they can detect. To overcome such limitations, we introduce situation awareness (SA) as a powerful concept that can break the limits of the used ML models, leading to more accurate and reliable solutions. Situation awareness uses environmental elements and events to gain a holistic view of the system at any given time. In this paper, we propose using SA to predict the trust of the surrounding cars and consequently reevaluate the outcome of the used ML model. Based on the collected data and SA information, we may reject a message classified as benign by the ML model or vice versa. We used VeReMi dataset to evaluate the proposed approach called SAMM (Situation Awareness with Machine Learning for Misbehavior Detection in VANET) on different ML models with a wide range of features. The results show that the proposed approach improves the system’s accuracy for various misbehavior attacks by enhancing the recall rate up to 24% and 50% in some cases.
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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 | 0.001 | 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 | 0.001 |
| 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 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".