Rank-One Matrix Pursuit for Matrix Completion
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Bibliographic record
Abstract
Low rank matrix completion has been applied successfully in a wide range of machine learn-ing applications, such as collaborative filtering, image inpainting and Microarray data imputa-tion. However, many existing algorithms are not scalable to large-scale problems, as they involve computing singular value decomposition. In this paper, we present an efficient and scalable algo-rithm for matrix completion. The key idea is to extend the well-known orthogonal matching pur-suit from the vector case to the matrix case. In each iteration, we pursue a rank-one matrix ba-sis generated by the top singular vector pair of the current approximation residual and update the weights for all rank-one matrices obtained up to the current iteration. We further propose a novel weight updating rule to reduce the time and storage complexity, making the proposed al-gorithm scalable to large matrices. We establish the linear convergence of the proposed algorithm. The fast convergence is achieved due to the pro-posed construction of matrix bases and the es-timation of the weights. We empirically evalu-ate the proposed algorithm on many real-world large-scale datasets. Results show that our al-gorithm is much more efficient than state-of-the-art matrix completion algorithms while achieving similar or better prediction performance.
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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) | 0.000 | 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