Search Results for author: Paula Branco

Found 8 papers, 3 papers with code

An Empirical Study on Log-based Anomaly Detection Using Machine Learning

no code implementations31 Jul 2023 Shan Ali, Chaima Boufaied, Domenico Bianculli, Paula Branco, Lionel Briand, Nathan Aschbacher

Further, the evaluation of different ML techniques is mostly based on the assessment of their detection accuracy.

Anomaly Detection

Measuring Improvement of F$_1$-Scores in Detection of Self-Admitted Technical Debt

no code implementations16 Mar 2023 William Aiken, Paul K. Mvula, Paula Branco, Guy-Vincent Jourdan, Mehrdad Sabetzadeh, Herna Viktor

We find that our trained BERT model improves over the best performance of all previous methods in 19 of the 20 projects in cross-project scenarios.

Data Augmentation

Automated Imbalanced Classification via Layered Learning

no code implementations5 May 2022 Vitor Cerqueira, Luis Torgo, Paula Branco, Colin Bellinger

The main contribution of our work is a new method called ICLL for tackling IBC tasks which is not based on resampling training observations.

Binary Classification Classification +2

Adversarial Robustness of Neural-Statistical Features in Detection of Generative Transformers

1 code implementation2 Mar 2022 Evan Crothers, Nathalie Japkowicz, Herna Viktor, Paula Branco

The detection of computer-generated text is an area of rapidly increasing significance as nascent generative models allow for efficient creation of compelling human-like text, which may be abused for the purposes of spam, disinformation, phishing, or online influence campaigns.

Adversarial Robustness Adversarial Text

Graph-based Solutions with Residuals for Intrusion Detection: the Modified E-GraphSAGE and E-ResGAT Algorithms

1 code implementation26 Nov 2021 Liyan Chang, Paula Branco

The high volume of increasingly sophisticated cyber threats is drawing growing attention to cybersecurity, where many challenges remain unresolved.

Graph Attention Intrusion Detection

UBL: an R package for Utility-based Learning

no code implementations27 Apr 2016 Paula Branco, Rita P. Ribeiro, Luis Torgo

The main goal of UBL package is to facilitate the utility-based predictive analytic task by providing a set of methods to deal with this type of problems in the R environment.

Classification General Classification +1

A Survey of Predictive Modelling under Imbalanced Distributions

1 code implementation7 May 2015 Paula Branco, Luis Torgo, Rita Ribeiro

Many real world data mining applications involve obtaining predictive models using data sets with strongly imbalanced distributions of the target variable.

Fraud Detection

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