Simultaneous State and Parameter Estimation with Trajectory Shape Constraints (Poster)
Bibliographic record
Abstract
In some tracking scenarios, the target state is subjected to equality constraints due to external limitations or inherent properties. If the constraints are known a priori, more accurate state estimates can be produced by taking advantage of these additional information in tracking algorithms. In this paper, a new model of the trajectory shape constraint is proposed when the target trajectory is known to be a straightline. The unknown slope and intercept of the straightline are treated as states to be estimated along with the target state. Then, two pseudo-measurements are constructed and augmented into the measurement equation in the filtering process. A trajectory shape constraint augmented state filter (TSC-ASF) is developed to produce constrained state estimates and constraint parameter estimates simultaneously. The nonlinear radar measurements and pseudo-measurements are processed by the converted measurement Kalman filter (CMKF) and unscented Kalman filter (UKF), sequentially. The unscented transform (UT) is employed to initialize the filter. Monte-Carlo simulation results illustrate the effectiveness of the proposed algorithm.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".