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Open AccessJournal ArticleDOI

Learning in the presence of concept drift and hidden contexts

TLDR
A family of learning algorithms that flexibly react to concept drift and can take advantage of situations where contexts reappear are described, including a heuristic that constantly monitors the system's behavior.
Abstract
On-line learning in domains where the target concept depends on some hidden context poses serious problems. A changing context can induce changes in the target concepts, producing what is known as concept drift. We describe a family of learning algorithms that flexibly react to concept drift and can take advantage of situations where contexts reappear. The general approach underlying all these algorithms consists of (1) keeping only a window of currently trusted examples and hypotheses; (2) storing concept descriptions and reusing them when a previous context re-appears; and (3) controlling both of these functions by a heuristic that constantly monitors the system's behavior. The paper reports on experiments that test the systems' perfomance under various conditions such as different levels of noise and different extent and rate of concept drift.

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Book ChapterDOI

Evolutionary Online Data Mining: An Investigation in a Dynamic Environment

TL;DR: This chapter investigates XCS, an evolutionary learning classifier system, that offers an incremental learning ability and also is able to handle an infinite amount of continuously arriving data, in dynamic environments, in the presence of noise in the training data.
Journal ArticleDOI

Hoeffding Tree Algorithms for Anomaly Detection in Streaming Datasets: A Survey

TL;DR: An extensive and well-constructed overview of using machine learning for the problem of detecting anomalies in streaming datasets and shows how a combination of techniques from different compositions can solve a prominent problem, anomaly detection.
Book ChapterDOI

Adaptation to Drifting Concepts

TL;DR: This paper presents a method for handling concept drift based on Shewhart P-Charts in an on-line framework for supervised learning, and explores the use of two alternatives P-charts, which differ only by the way they estimate the target value to set the center line.
Book ChapterDOI

An Enhanced Cyber Attack Attribution Framework

TL;DR: The Enhanced Cyber Attack Attribution (NEON) Framework is proposed, which performs attribution of malicious parties behind APT campaigns and is designed to increase societal resiliency to APTs.
Proceedings ArticleDOI

genSpace: Exploring social networking metaphors for knowledge sharing and scientific collaborative work

TL;DR: This work investigates social networking models as an approach to scientific knowledge sharing, and presents an implementation called genSpace, which is built as an extension to the geWorkbench platform for computational biologists.
References
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Journal ArticleDOI

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Journal ArticleDOI

Queries and Concept Learning

TL;DR: This work considers the problem of using queries to learn an unknown concept, and several types of queries are described and studied: membership, equivalence, subset, superset, disjointness, and exhaustiveness queries.