ParaFIS:A new online fuzzy inference system based on parallel drift anticipation

Clement Leroy (1, 2, 3) , Eric Anquetil (1, 2, 3) , Nathalie Girard (1, 4, 3)

1 IntuiDoc - intuitive user interaction for document
2 INSA - Institut National des Sciences Appliquées
3 IRISA-D6 - MEDIA ET INTERACTIONS
4 UR - Université de Rennes

This paper proposes a new architecture of incremen-tal fuzzy inference system (also called Evolving Fuzzy System-EFS). In the context of classifying data stream in non stationary environment, concept drifts problems must be addressed. Several studies have shown that EFS can deal with such environment thanks to their high structural flexibility. These EFS perform well with smooth drift (or incremental drift). The new architecture we propose is focused on improving the processing of brutal changes in the data distribution (often called brutal concept drift). More precisely, a generalized EFS is paired with a module of anticipation to improve the adaptation of new rules after a brutal drift. The proposed architecture is evaluated on three datasets from UCI repository where artificial brutal drifts have been applied. A fit model is also proposed to get a "reactivity time" needed to converge to the steady-state and the score at end. Both characteristics are compared between the same system with and without anticipation and with a similar EFS from state-of-the-art. The experiments demonstrates improvements in both cases.

Mots clés: Non Stationary Environment NSE; Evolving Fuzzy System EFS; long-life learning; Brutal drift Adaptation; Non Stationary Stream; Online learning; Brutal drift Detection

Domaines: Intelligence artificielle [cs.AI]; Apprentissage [cs.LG]; Réseau de neurones [cs.NE]

Clement Leroy, Eric Anquetil, Nathalie Girard. ParaFIS:A new online fuzzy inference system based on parallel drift anticipation. FUZZ-IEEE, Jun 2019, New Orleans, United States. ⟨hal-02183142⟩