2 citations · 3 across the 6 of their papers we have counts for
8 papers
When Is Smaller Greener? Right-Sizing Language Models for Agentic AI
Sajid Siraj, Maria Barbati
AI agents use large language models (LLMs) to plan and act over multiple steps, yet models are usually compared per call rather than per completed task. This paper asks: which mode…
Preference-Based Estimation of Achievement Scalarising Function Parameters via Ordinal Regression
Maria Barbati, Salvatore Greco
Estimating the parameters of an achievement scalarising function is a challenging task in multiobjective optimisation. Achievement scalarising functions are widely used in several…
A Multi-Objective Portfolio of Portfolios Problem with Qualitative Performance Assessments
Maria Barbati, Salvatore Greco, José Rui Figueira
We present a multi-objective portfolio decision model that involves selecting both a portfolio of projects and a set of elements to allocate to each project. Our model includes a d…
A new Ordinal Regression procedure for Multiple Criteria Decision Aiding: the case of the space time model for a sustainable Ecovillage
Maria Barbati, Salvatore Greco, Isabella M. Lami
In this paper, we present a methodology based on a multiobjective optimization suggesting which facility to implement, in which location, and at which time. In this context, we def…
Multiobjective Combinatorial Optimization with Interactive Evolutionary Algorithms: the case of facility location problems
Maria Barbati, Salvatore Corrente, Salvatore Greco
We consider multiobjective combinatorial optimization problems handled by means of preference driven efficient heuristics. They look for the most preferred part of the Pareto front…
The {0,1}-knapsack problem with qualitative levels
Luca E. Schäfer, Tobias Dietz, Maria Barbati +3
A variant of the classical knapsack problem is considered in which each item is associated with an integer weight and a qualitative level. We define a dominance relation over the f…
A multiple criteria methodology for priority based portfolio selection
Maria Barbati, Josè Rui Figueira, Salvatore Greco +2
This paper presents a new methodology that combines a multiple criteria sorting or ranking method with a project portfolio selection procedure. The multicriteria method permits to…
A general space-time model for combinatorial optimization problems (and not only)
Maria Barbati, Salvatore Corrente, Salvatore Greco
We consider the problem of defining a strategy consisting of a set of facilities taking into account also the location where they have to be assigned and the time in which they hav…