Search Results for author: Nicola Botta

Found 4 papers, 2 papers with code

ECOD: Unsupervised Outlier Detection Using Empirical Cumulative Distribution Functions

2 code implementations2 Jan 2022 Zheng Li, Yue Zhao, Xiyang Hu, Nicola Botta, Cezar Ionescu, George H. Chen

To address these issues, we present a simple yet effective algorithm called ECOD (Empirical-Cumulative-distribution-based Outlier Detection), which is inspired by the fact that outliers are often the "rare events" that appear in the tails of a distribution.

Anomaly Detection Outlier Detection

COPOD: Copula-Based Outlier Detection

3 code implementations20 Sep 2020 Zheng Li, Yue Zhao, Nicola Botta, Cezar Ionescu, Xiyang Hu

In this work, we make three key contributions, 1) propose a novel, parameter-free outlier detection algorithm with both great performance and interpretability, 2) perform extensive experiments on 30 benchmark datasets to show that COPOD outperforms in most cases and is also one of the fastest algorithms, and 3) release an easy-to-use Python implementation for reproducibility.

Outlier Detection

On the correctness of monadic backward induction

no code implementations5 Aug 2020 Nuria Brede, Nicola Botta

The conditions that we impose are fairly general and can be cast in category-theoretical terms using the notion of Eilenberg-Moore-algebra.

Logic in Computer Science

Extensional equality preservation and verified generic programming

no code implementations5 Aug 2020 Nicola Botta, Nuria Brede, Patrik Jansson, Tim Richter

This suggests that preservation of extensional equality could be a useful principle in verified generic programming.

Logic in Computer Science

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