Search Results for author: Xixi Lu

Found 4 papers, 2 papers with code

The Analysis of Online Event Streams: Predicting the Next Activity for Anomaly Detection

1 code implementation17 Mar 2022 Suhwan Lee, Xixi Lu, Hajo A. Reijers

We compare these predictive anomaly detection methods to four classical unsupervised anomaly detection approaches (such as Isolation forest and LOF) in the online setting.

Activity Prediction Unsupervised Anomaly Detection

Discovering Hierarchical Processes Using Flexible Activity Trees for Event Abstraction

1 code implementation16 Oct 2020 Xixi Lu, Avigdor Gal, Hajo A. Reijers

In this paper, we propose FlexHMiner, a three-step approach to discover processes with multi-level interleaved subprocesses.

Identifying Patient Groups based on Frequent Patterns of Patient Samples

no code implementations3 Apr 2019 Seyed Amin Tabatabaei, Xixi Lu, Mark Hoogendoorn, Hajo A. Reijers

In this paper we propose an approach that is able to find groups of patients based on a small sample of positive examples given by a domain expert.

The Imprecisions of Precision Measures in Process Mining

no code implementations3 May 2017 Niek Tax, Xixi Lu, Natalia Sidorova, Dirk Fahland, Wil M. P. van der Aalst

In process mining, precision measures are used to quantify how much a process model overapproximates the behavior seen in an event log.

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