Sergio Rabellino - Academia.edu (original) (raw)

Papers by Sergio Rabellino

Proceedings of the 11th International Conference on Computer Supported Education

EPJ Web of Conferences

Obtaining CPU cycles on an HPC cluster is nowadays relatively simple and sometimes even cheap for... more Obtaining CPU cycles on an HPC cluster is nowadays relatively simple and sometimes even cheap for academic institutions. However, in most of the cases providers of HPC services would not allow changes on the configuration, implementation of special features or a lower-level control on the computing infrastructure, for example for testing experimental configurations. The variety of use cases proposed by several departments of the University of Torino, including ones from solid-state chemistry, computational biology, genomics and many others, called for different and sometimes conflicting configurations; furthermore, several R&D activities in the field of scientific computing, with topics ranging from GPU acceleration to Cloud Computing technologies, needed a platform to be carried out on. The Open Computing Cluster for Advanced data Manipulation (OCCAM) is a multi-purpose flexible HPC cluster designed and operated by a collaboration between the University of Torino and the Torino bra...

GigaScience

Background Single-cell RNA sequencing is essential for investigating cellular heterogeneity and h... more Background Single-cell RNA sequencing is essential for investigating cellular heterogeneity and highlighting cell subpopulation-specific signatures. Single-cell sequencing applications have spread from conventional RNA sequencing to epigenomics, e.g., ATAC-seq. Many related algorithms and tools have been developed, but few computational workflows provide analysis flexibility while also achieving functional (i.e., information about the data and the tools used are saved as metadata) and computational reproducibility (i.e., a real image of the computational environment used to generate the data is stored) through a user-friendly environment. Findings rCASC is a modular workflow providing an integrated analysis environment (from count generation to cell subpopulation identification) exploiting Docker containerization to achieve both functional and computational reproducibility in data analysis. Hence, rCASC provides preprocessing tools to remove low-quality cells and/or specific bias, e...

2015 IEEE 39th Annual Computer Software and Applications Conference, 2015

Assessment of learning and assessment for learning are at the core of the research on new teachin... more Assessment of learning and assessment for learning are at the core of the research on new teaching strategies involving the use of new technologies recently performed by University of Turin. The practice of automated assessment in Mathematics using the grading system Maple T.A. has been introduced in many undergraduate scientific courses and, after the initial success, it has been diffused in high-schools through several projects aimed to improve Maths teaching and learning. The following paper is intended to describe the effectiveness of automated assessment as a learning tool, the strength of Maple T.A. for grading Mathematics and its integration in a learning content management system, and the results obtained at University and in high-schools.

SHS Web of Conferences, 2015

The paper deals with a system able to perform a single uniform scan acquisition of the Shroud.

Proceedings CCGRID 2008 - 8th IEEE International Symposium on Cluster Computing and the Grid, 2008

ShareGrid is a peer-to-peer desktop grid aimed at satisfying the computing needs of the small res... more ShareGrid is a peer-to-peer desktop grid aimed at satisfying the computing needs of the small research laboratories located in the Piedmont area in Northern Italy. Share-Grid adopts a cooperative approach, in which each participant allows the other ones to use his/her own resources on a reciprocity basis. ShareGrid is based on the OurGrid middleware, that provides a set of mechanisms enabling participating entities to quickly, fairly, and securely share their resources. In this paper we report our experience in designing, deploying, and using ShareGrid, and we describe the applications using it, as well as the lessons we learned, the problems that still remain open, and some possible solutions to them.

Imaging & Formazione, 2013

ABSTRACT Il volume illustra i fondamenti necessari per acquisire, elaborare e valutare le immagin... more ABSTRACT Il volume illustra i fondamenti necessari per acquisire, elaborare e valutare le immagini radiologiche con un approccio interdisciplinare, che coniuga contributi di fisica, informatica biomedica e radiologia. Dopo un’introduzione al trattamento digitale di segnali e alla psicofisiologia della visione, vengono descritti i parametri caratteristici e gli indicatori di qualità delle immagini digitali, passando poi alle principali tecniche di elaborazione delle immagini, sia nel dominio spaziale sia in quello delle frequenze. Sono trattati gli algoritmi per il filtraggio, le tecniche di segmentazione, con dettaglio specifico per le diverse metodiche di imaging, concludendo con una rassegna dei principali formati di memorizzazione tra cui lo standard più diffuso per le immagini ad uso medico, il DICOM.

Elementi di risonanza magnetica, 2014

Il Corso di Studi in Informatica della Facoltà di Scienze Matematiche, Fisiche e Naturali dell&#x... more Il Corso di Studi in Informatica della Facoltà di Scienze Matematiche, Fisiche e Naturali dell'Ateneo torinese dopo la sperimentazione di un anno, conclusa con successo, ha adottato un sistema di Course Management System (CMS, per brevità) basato sul software OpenSource Moodle per il supporto alla didattica. La sperimentazione ha riguardato corsi propri del Corso di Studi in Informatica (piattaforma I-Learn, http://i-learn.educ.di.unito.it) e corsi di natura informatica attivati presso altri corsi di studi, (piattaforma I-Teach, http://i-teach.educ.di.unito.it) tenuti da docenti afferenti al Dipartimento di Informatica. Successivamente l'uso di queste piattaforme si è esteso anche ad altre iniziative quali master interfacoltà, orientamento per gli studenti delle scuole superiori, formazione del personale di Ateneo; attualmente diverse realtà di corsi di studio della Facoltà di Scienze sono in procinto di appoggiarsi alle piattaforme inizialmente calibrate per fornire un se...

ELEARNING AND SOFTWARE FOR EDUCATION, 2017

The assessment and certification of the achievement of learning objectives are a key point of act... more The assessment and certification of the achievement of learning objectives are a key point of actual discussion about e-learning. Progressive assessment is useful to inform students and teachers about personal and class advancements as well as engage and motivate them to complete a course. In order to be effective, assessment of online courses should include all fundamental aspects, from the development of individual skills to the interaction among participants. This paper shows and discusses a method to assess the participation to an online course: this method is developed by the Department of Mathematics of the University of Turin within the project Digital Mate Training, funded by the Fondazione CRT. The project is focused on enhancing and strengthening mathematical problem solving competences by using an Advanced Computing Environment and it is carried out through an online training on a Moodle platform. Students' progresses are measured through Digital Mate Coins and Digital Mate Badges, a system of scores implemented on the platform which takes into account individual skills in problem solving, self-assessment activities and collaboration through asynchronous discussions. The effectiveness of the model proposed is supported by the positive results and feedback in terms of satisfaction and achieved learning goals.

Design the Future! EXTENDED ABSTRACTS DELLA MULTICONFERENZA EMEMITALIA2016, 2016

Nell'anno accademico 2015/2016 l'Università di Torino ha sperimentato la somministra-zione autono... more Nell'anno accademico 2015/2016 l'Università di Torino ha sperimentato la somministra-zione autonoma dei TARM (Test di Accertamento dei Requisiti Minimi), che ha coinvolto undici corsi di studio di carattere scientifico appartenenti alle Scuole di Scienze della Natura e di Agraria e Medicina Veterinaria. L'erogazione autonoma del TARM, dedicata a studenti sia universitari sia del quinto anno delle scuole secondarie di secondo grado, è stata possibile grazie alla collaborazione con Orient@mente, progetto sviluppato dall'Università di Torino che fornisce strumenti per verificare la preparazione e l'attitudine degli studenti alle discipline principali dei corsi universitari. In particolare Orient@mente offre test con valutazione automatica creati e distribuiti attraverso l'integrazione di una piattaforma Moodle con Maple T.A., un sistema di valutazione automatica per la creazione di domande algoritmiche e capace di riconoscere l'esattezza di risposte matematiche indipendentemente dalla forma equivalente scelta. L'analisi dell'esperienza ha dimostrato l'efficacia degli strumenti adottati e favorisce la scelta di proseguire con la gestione autonoma da parte dell'Università di Torino delle prossime sessioni TARM autunnali dell'anno accademico 2016/17.

JE-LKS. JOURNAL OF E-LEARNING AND KNOWLEDGE SOCIETY, 2017

In the academic year 2014/2015, University of Turin started the Project Orient@mente, aimed to su... more In the academic year 2014/2015, University of Turin started the Project Orient@mente, aimed to support students in the transition from high school to university. Several Massive Open Online Courses have been developed to support three main actions: guidance to the University offer, automated self-testing of basic knowledge, self-paced review of fundamental disciplinary concepts learned in high school; all of them are useful to help students successfully attend scientific courses of the first year of University. A key feature of the Project is the continuous open-access to the platform. Contents are built according to educational models grown thanks to the experience and the research in e-learning carried out by the University, especially in the use of an accessible learning management system integrated with an advanced computing environment, an automated assessment system and a web conference system to enhance teaching and learning. In this paper, the adopted methodologies are discussed, the obtained results are presented and future developments are proposed in light of relevant data collected from the platform usage and feedback received by users.

Design the Future! EXTENDED ABSTRACTS DELLA MULTICONFERENZA EMEMITALIA2016, 2016

The project Orient@mente mission is to support students in the transition from high school to uni... more The project Orient@mente mission is to support students in the transition from high school to university. Several MOOCs are available in order to support three main actions: guidance to the University offer, automated self-testing of basic knowledge, self-paced review of the fundamental disciplinary concepts learned at high school; all of them are useful in order to successfully attend the courses of the first year. A key feature of the project is the continuous open-access to the platform that helps students who want to attend a scientific university course. Contents are built according to educational models grown thanks to the experience and the research carried out by the University of Turin in e-learning, especially in the use of an accessible learning management system integrated with an advanced computing environment, an automated assessment system and a web conference system to enhance teaching and learning. In this paper, the methodologies adopted are discussed, the obtained results are presented and the future developments are proposed in the light of relevant data collected from the platform usage and feedback.

Proceedings of the 11th International Conference on Computer Supported Education

EPJ Web of Conferences

GigaScience

2015 IEEE 39th Annual Computer Software and Applications Conference, 2015

SHS Web of Conferences, 2015

The paper deals with a system able to perform a single uniform scan acquisition of the Shroud.

Proceedings CCGRID 2008 - 8th IEEE International Symposium on Cluster Computing and the Grid, 2008

Imaging & Formazione, 2013

Elementi di risonanza magnetica, 2014

ELEARNING AND SOFTWARE FOR EDUCATION, 2017

Design the Future! EXTENDED ABSTRACTS DELLA MULTICONFERENZA EMEMITALIA2016, 2016

JE-LKS. JOURNAL OF E-LEARNING AND KNOWLEDGE SOCIETY, 2017

Design the Future! EXTENDED ABSTRACTS DELLA MULTICONFERENZA EMEMITALIA2016, 2016

ShareGrid is a peer-to-peer desktop grid aimed at satisfying the computing needs of the small res... more ShareGrid is a peer-to-peer desktop grid aimed at satisfying the computing needs of the small research laboratories located in the Piedmont area in Northern Italy. ShareGrid adopts a cooperative approach, in which each participant allows the other ones to use his/her own resources on a reciprocity basis. ShareGrid is based on the OurGrid middleware, that provides a set of mechanisms enabling participating entities to quickly, fairly, and securely share their resources. In this paper we report our experience in designing, deploying, and using ShareGrid, and we describe the applications using it, as well as the lessons we learned, the problems that still remain open, and some possible solutions to them.