polito.it
Politecnico di Torino (logo)

Data exploration techniques for classification analysis

Carmen Motta

Data exploration techniques for classification analysis.

Rel. Elena Maria Baralis, Eliana Pastor. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Informatica (Computer Engineering), 2021

[img]
Preview
PDF (Tesi_di_laurea) - Tesi
Licenza: Creative Commons Attribution Non-commercial No Derivatives.

Download (9MB) | Preview
Abstract:

The rapid spread of Machine Learning systems in contexts where a decision is required has introduced a new challenge for designers who have to interface with new considerations inherent to fairness and the possible intrinsic bias of systems. Studies show that there may be possible unwanted biases that AI systems present against people of specific groups, often underrepresented, based on race, sex, religion, or age, among other characteristics. Also when validating a model, the overall performance may not reflect those of the smaller subsets. In this thesis new data exploration techniques will be proposed for the analysis of the classification, going to search for those subgroups in which the model is underperforming. The subdivision allows users to analyze model performance at a more granular level. We then consider the importance of moving to a use-oriented design by presenting an interactive tool to support the analysis able to guide the user in the process, allowing a greater understanding of the results obtained, offering a certain degree of interactivity with the steps carried out by increasing usability and improving the user experience also in this sector.

Relatori: Elena Maria Baralis, Eliana Pastor
Anno accademico: 2020/21
Tipo di pubblicazione: Elettronica
Numero di pagine: 127
Soggetti:
Corso di laurea: Corso di laurea magistrale in Ingegneria Informatica (Computer Engineering)
Classe di laurea: Nuovo ordinamento > Laurea magistrale > LM-32 - INGEGNERIA INFORMATICA
Aziende collaboratrici: NON SPECIFICATO
URI: http://webthesis.biblio.polito.it/id/eprint/18090
Modifica (riservato agli operatori) Modifica (riservato agli operatori)