Seminari
- 20 Aprile 2015, ore 12.00-14.00,
Prof. Roberto Navigli, "Elaborazione del Linguaggio Naturale: risultati e sfide del 2015"
L'elaborazione del linguaggio naturale (Natural Language Processing o NLP) è un'area chiave dell'Intelligenza Artificiale
che si occupa del trattamento automatico del linguaggio mediante tecniche algoritmiche. Il linguaggio è certamente il
tratto che meglio distingue gli animali dall'uomo, in quanto permette di stabilire in qualche misura il grado di intelligenza
dell'essere con cui si comunica. Come stabilire quindi se una macchina è "intelligente"? Già nel 1950, Alan Turing propose di
utilizzare a tal fine il linguaggio naturale nel suo famoso test.
In questo seminario, vedremo quali risultati sono stati raggiunti, inclusi alcuni risultati del Linguistic Computing Laboratory
della Sapienza di Roma, come BabelNet e Babelfy, e quali sfide devono ancora essere affrontate oggi dai ricercatori di tutto il mondo.
Roberto Navigli is an Associate Professor in the Department of Computer Science
of the Sapienza University of Rome. He was awarded the Marco Cadoli 2007 AI*IA Prize for the best doctoral thesis in Artificial
Intelligence and the Marco Somalvico 2013 AI*IA Prize for the best young researcher in AI. He is the first Italian recipient of an
ERC Starting Grant in computer science and informatics on multilingual word sense disambiguation
(2011-2016), a co-PI of a Google Focused Research Award on Natural Language Understanding and a partner of the
LIDER EU project. His research lies in the field of Natural Language Processing
(including multilingual word sense disambiguation and induction, multilingual entity linking, large-scale knowledge
acquisition, ontology learning from scratch, open information extraction and relation extraction). He has served as an area chair of
ACL, WWW, and *SEM, and a senior program committee member of IJCAI. Currently he is an Associate Editor of the Artificial
Intelligence Journal, a member of the editorial board of the Journal of Natural Language Engineering, a guest editor of the Journal
of Web Semantics, and a former editorial board member of Computational Linguistics.
-
11 Maggio 2015, ore 12.00-14.00,
Prof. Andrea Roli, "An introduction to genetic algorithms and genetic programming"
In this seminar, I will introduce the basic principles and concepts of genetic algorithms (GAs) and genetic programming (GP).
These techniques are two representative problem solving methods in the area of evolutionary computation, which is inspired by
evolutionary theories. GAs and GP are used to automatically solve problems in optimization, design and control.
Notable results have been indeed achieved in several engineering fields and in artificial intelligence.
The first part of the talk will be devoted to an introduction of the fundamental principles of GAs. The main GA high-level
algorithmic scheme will be illustrated, along with its main components. I will briefly survey the simplest version of a GA and
provide an outlook to more elaborated versions, along with some representative examples. Subsequently, GP will be introduced as a
generalization of the former technique and some successful examples of its application will be outlined.
Lucidi:
Alcuni articoli di interesse:
-
A Genetic Programming Tutorial, by Koza and Poli
-
Genetic Algorithms, by Holland
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Ant Colony Optimization, by Roli
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Swarm Smarts, by Bonabeau and Theraulaz
- 19 Maggio 2015, ore 9.00-12.00, Ing. Federico Chesani, "Introduzine
a Semantic Web"
Lucidi:
