Aspect-Aware Multi-Criteria Recommendation Model with Aspect Representation Learning
Bibliographic record
Abstract
Multi-criteria recommendation system refers to a recommendation system that takes multi-criteria or multiaspect ratings into consideration when learning user preferences. The core of the multi-criteria recommendation system is predicting the criteria ratings leading to overall rating estimation. The existing approaches for multi-criteria recommendation system rely on either 1) using collaborative filtering to predict the criteria ratings based on historical criteria ratings, or 2) extracting latent aspects and predicting ratings from the review. The latter approach ignores the explicit ratings and the inferred ratings from the review may not be accurate. In the former approach, historical criteria ratings can be scarce (users may only provide ratings to a few criteria), which could affect the prediction accuracy. In this work, we introduce a novel multi-criteria recommendation model that predicts the criteria ratings from the review and then uses an aggregation function to estimate the overall rating. Multi-criteria ratings are predicted by fine-tuning BERT (Bidirectional Encoder Representations from Transformer) with an added aspect representation layer. Finally, the overall ratings are computed using a deep neural network-based aggregation function. The performance of our proposed model is evaluated with three different datasets including Tripadvisor, RateBeer, and BeerAdvocate. Our method outperforms several competitive baselines.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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 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".