Search Results for author: Laura Palagi

Found 10 papers, 3 papers with code

Feature selection in linear SVMs via hard cardinality constraint: a scalable SDP decomposition approach

no code implementations15 Apr 2024 Immanuel Bomze, Federico D'Onofrio, Laura Palagi, Bo Peng

In this paper, we study the embedded feature selection problem in linear Support Vector Machines (SVMs), in which a cardinality constraint is employed, leading to a fully explainable selection model.

Benchmarking feature selection

The forgotten pillar of sustainability: development of the S-assessment tool to evaluate Organizational Social Sustainability

no code implementations5 Apr 2024 Alessandro Annarelli, Tiziana Catarci, Laura Palagi

Pursuing sustainable development has become a global imperative, underscored adopting of the 2030 Agenda for Sustainable Development and its 17 Sustainable Development Goals (SDG).

Decision Making

Incorporating temporal dynamics of mutations to enhance the prediction capability of antiretroviral therapy's outcome for HIV-1

no code implementations8 Nov 2023 Giulia Di Teodoro, Martin Pirkl, Francesca Incardona, Ilaria Vicenti, Anders Sönnerborg, Rolf Kaiser, Laura Palagi, Maurizio Zazzi, Thomas Lengauer

Motivation: In predicting HIV therapy outcomes, a critical clinical question is whether using historical information can enhance predictive capabilities compared with current or latest available data analysis.

Unboxing Tree Ensembles for interpretability: a hierarchical visualization tool and a multivariate optimal re-built tree

1 code implementation15 Feb 2023 Giulia Di Teodoro, Marta Monaci, Laura Palagi

First, given a target tree-ensemble model, we develop a hierarchical visualization tool based on a heatmap representation of the forest's feature use, considering the frequency of a feature and the level at which it is selected as an indicator of importance.

feature selection

Convergence under Lipschitz smoothness of ease-controlled Random Reshuffling gradient Algorithms

1 code implementation4 Dec 2022 Giampaolo Liuzzi, Laura Palagi, Ruggiero Seccia

We aim to define ease-controlled modifications of the IG/RR schemes, which require a light additional computational effort and can be proved to converge under very weak and standard assumptions.

Margin Optimal Classification Trees

1 code implementation19 Oct 2022 Federico D'Onofrio, Giorgio Grani, Marta Monaci, Laura Palagi

Thanks to their interpretability, decision trees have been intensively studied for classification tasks and, due to the remarkable advances in mixed integer programming (MIP), various approaches have been proposed to formulate the problem of training an Optimal Classification Tree (OCT) as a MIP model.

Binary Classification Classification +2

Solving the vehicle routing problem with deep reinforcement learning

no code implementations30 Jul 2022 Simone Foa, Corrado Coppola, Giorgio Grani, Laura Palagi

Comparisons between the algorithm proposed and the state-of-the-art solver OR-TOOLS show that the latter still outperforms the Reinforcement learning algorithm.

Combinatorial Optimization reinforcement-learning +1

Block Layer Decomposition schemes for training Deep Neural Networks

no code implementations18 Mar 2020 Laura Palagi, Ruggiero Seccia

Deep Feedforward Neural Networks' (DFNNs) weights estimation relies on the solution of a very large nonconvex optimization problem that may have many local (no global) minimizers, saddle points and large plateaus.

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