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💬 프롬프트 라이브러리 📖 AI 용어 사전 🔗 유용한 링크

AI 용어집

인공지능 완전 사전

162
카테고리
2,032
하위 카테고리
23,060
용어
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Distribution Drift

Statistical modification of the distribution of input or output features over time, which can affect model performance without necessarily changing the relationship between variables.

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Incremental Drift

Continuous and gradual evolution of the concept where each new observation brings a slight but cumulative modification to the underlying model.

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Kolmogorov-Smirnov Test

Non-parametric statistical test comparing the cumulative distribution functions of two samples to detect significant differences in their distributions.

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Chi-Square Test

Statistical test evaluating the independence between categorical variables or comparing observed distributions to expected distributions to detect drifts.

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Hellinger Distance

Metric quantifying the similarity between two probability distributions, used to measure the magnitude of drift with values between 0 (identical) and 1 (completely different).

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Page-Hinkley Test

Change detection test based on the accumulation of differences between observed values and the mean, identifying break points in time series.

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Sliding Window Detection

Technique analyzing successive segments of fixed-size data to identify statistical changes between adjacent windows or relative to a reference window.

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Time-Weighted Detection

Method assigning decreasing weights to older observations to prioritize recent data, enabling sensitive detection of recent changes.

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Alerte de Dérive

Signal précurseur indiquant une probabilité élevée de dérive imminente, permettant une réaction proactive avant dégradation significative des performances du modèle.

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Adaptation de Modèle

Processus de mise à jour automatique du modèle prédictif en réponse à une dérive détectée, incluant réentraînement, ajustement de paramètres ou sélection de nouveau modèle.

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Fenêtre Adaptative

Segment de données dont la taille s'ajuste dynamiquement selon la stabilité détectée, s'élargissant en période stable et se réduisant lors de changements détectés.

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Stabilité Temporelle

Mesure de la cohérence des performances et des caractéristiques statistiques d'un modèle sur différentes périodes temporelles, essentielle pour évaluer la robustesse face aux dérives.

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