Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| Algoritmus Ensemble Apriori× | Algoritmus Apriori× | Bagging (Bootstrap Aggregating)× | Zesilování× | FP-Růst (Růst častých vzorů)× | |
|---|---|---|---|---|---|
| Obor | Strojové učení | Strojové učení | Strojové učení | Strojové učení | Strojové učení |
| Rodina | Machine learning | Machine learning | Machine learning | Machine learning | Machine learning |
| Rok vzniku≠ | 1994 (Apriori base); ensemble extensions 2000s–2010s | 1994 | 1996 | 1990–1997 | 2000 |
| Tvůrce≠ | Agrawal, R. & Srikant, R. (Apriori base); ensemble extension by multiple researchers | Agrawal, R. & Srikant, R. | Breiman, L. | Schapire, R. E.; Freund, Y. | Jiawei Han, Jian Pei & Yiwen Yin |
| Typ≠ | Ensemble / Frequent Pattern Mining | Frequent itemset and association rule mining algorithm | Ensemble meta-algorithm (variance reduction via bootstrap aggregation) | Sequential ensemble (iterative reweighting) | Frequent-itemset mining algorithm |
| Původní zdroj≠ | Agrawal, R. & Srikant, R. (1994). Fast algorithms for mining association rules. Proceedings of the 20th International Conference on Very Large Data Bases (VLDB), 1215, 487–499. link ↗ | Agrawal, R. & Srikant, R. (1994). Fast algorithms for mining association rules. Proceedings of the 20th International Conference on Very Large Data Bases (VLDB), 487–499. link ↗ | Breiman, L. (1996). Bagging Predictors. Machine Learning, 24(2), 123–140. DOI ↗ | Freund, Y. & Schapire, R. E. (1997). A decision-theoretic generalization of on-line learning and an application to boosting. Journal of Computer and System Sciences, 55(1), 119–139. DOI ↗ | Han, J., Pei, J., & Yin, Y. (2000). Mining frequent patterns without candidate generation. ACM SIGMOD Record, 29(2), 1–12. DOI ↗ |
| Další názvy≠ | Ensemble Apriori, Ensemble Association Rule Mining, EAR mining, Distributed Apriori Ensemble | Apriori, frequent itemset mining, ARL-Apriori, Apriori association mining | Bootstrap Aggregating, bootstrap aggregation, bagged ensemble, bagged predictor | AdaBoost, gradient boosting, iterative reweighting ensemble, sequential ensemble | frequent pattern growth, FP-tree mining, FP-Growth algorithm, sık örüntü büyütme |
| Příbuzné≠ | 5 | 5 | 5 | 6 | 4 |
| Shrnutí≠ | The Ensemble Apriori Algorithm applies ensemble principles to the classic Apriori frequent-pattern miner by running multiple Apriori instances on different data partitions or parameter settings and merging their rule sets. This approach improves coverage, reduces sensitivity to the minimum-support threshold, and scales association rule mining to larger transactional datasets. | The Apriori algorithm, introduced by Agrawal and Srikant in 1994, is the foundational method for discovering frequent itemsets and association rules in transactional databases. It uses a breadth-first, level-wise search guided by the anti-monotone property of support to efficiently enumerate all item combinations that co-occur above a user-set minimum threshold, then extracts interpretable if-then rules from those patterns. | Bagging, short for Bootstrap Aggregating, is an ensemble meta-algorithm introduced by Leo Breiman in 1996 that trains multiple copies of a base learner on independently drawn bootstrap samples of the training data and combines their predictions — by averaging for regression or majority vote for classification — to produce a final predictor with substantially lower variance than any single base learner. | Boosting is a sequential ensemble technique that converts many simple, barely-better-than-chance learners into a single highly accurate model by repeatedly focusing training on the examples that previous learners got wrong, then combining all learners with weights proportional to their individual accuracy. | FP-Growth, introduced by Jiawei Han, Jian Pei, and Yiwen Yin in 2000, mines frequent itemsets from transaction data without generating candidate sets, the costly step that slows the classic Apriori algorithm. It compresses the database into a frequent-pattern tree (FP-tree) in two scans, then grows frequent patterns recursively from that structure, making it dramatically faster than Apriori on large, dense datasets. |
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