5,049 research outputs found
A dataset containing job descriptions suitable for NLP and NN processing.
Get PDFWe describe a dataset that contains job description published on a popular online website in the information and technology sector. As the website focus mainly on United Kingdom based jobs, the data have a specific focus on this country. It contains 11.501 job vacancies and 13 related meta data information. The dataset is suitable for HR analysis using machine learning techniques such as natural language processing and neural networks. Contact for this specific dataset: Francesco Lelli</a
A dataset containing S&P500 information security breaches and related financial firm performances
No full textIn this document, comprehensive datasets are presented to advance research on information security breaches. The datasets include data on disclosed information security breaches affecting S&P500 companies between 2020 and 2023, collected through manual search of the Internet. Overall, the datasets include 504 companies, with detailed information security breach and financial data available for 97 firms that experienced a disclosed information security breach. This document will describe the datasets in detail, explain the data collection procedure and shows the initial versions of the datasets. Contact at Tilburg University Francesco Lelli </a
Stock Values and Earnings Call Transcripts: a Sentiment Analysis Dataset
No full textThe dataset reports a collection of earnings call transcripts, the related stock prices, and the sector index In terms of volume, there is a total of 188 transcripts, 11970 stock prices, and 1196 sector index values. Furthermore, all of these data originated in the period 2016-2020 and are related to the NASDAQ stock market.
Furthermore, the data collection was made possible by Yahoo Finance and Thomson Reuters Eikon. Specifically, Yahoo Finance enabled the search for stock values and Thomson Reuters Eikon provided the earnings call transcripts.
Lastly, the dataset can be used as a benchmark for the evaluation of several NLP techniques to understand their potential for financial applications. Moreover, it is also possible to expand the dataset by extending the period in which the data originated following a similar procedure.
Contact at Tilburg University: Francesco Lelli <a
A dataset containing tweets and their meta data for understanding social media conversations around movies during their release.
No full textWe are sharing a dataset that contains a collection of tweets generated as reactions of the release of 50 different movies. The dataset can be used for gaining useful insights regarding the conversation that is generated around a particular movie. It is particularly suitable for conducting sentiment analysis and other NLP techniques. The dataset contains approximately 2.5 million tweets with their related meta data and cover 50 movies. For each movie, its IMDb rating is included. The movies are the 25 releases with the highest number of votes during 2020 and 2021. The collected tweets represent the reactions of the twitter community during the first week of the release date in US of that particular movie. The tweets per movie ranged from 1.000 to approximately 200.000 tweets with an average of 50.000 per release. We used The Internet Archive Wayback Machine in order to retrieve the IMDb movie rating after one week of the US release date. The tweets and related metadata have been collected using the Tweet Downloader tool.
Contact at Tilburg University: Francesco Lelli</a
A Survey for investigating human and smart devices relationships
No full textThis dataset reports responses to a survey designed for investigating the relationship that humans have with their smart devices. The dataset has been collected in May-July 2020 and is a sample of over 500 respondents of various different ethnicities and backgrounds.
These data have been used for modelling the ways people relate to their devices using the notion of agency. However, the data can be used for complementing any study that intends to investigate a tool-mediated communication from the perspective of the users and via a variety of attitudes and expectations the users invest in their devices and in themselves as users.
This article presents the survey items as well as some raw data insights. The data have been collected in English and answers have been anonymized in order to ensure GDPR compliance. They are stored in a .csv file containing the respondents’ answers to the questions.
The reference contact for this data at Tilburg University is Francesco Lelli
The paper "A Dataset for Studying How Human Relates to their Smart Devices" provide an extensive description of the data as well as the methodology for collecting the samples
Control strategies for handling nonlinearities in high-performance synchronous machine drives
Get PDFIn the field of electric drives, many solutions have been proposed for the control algorithm according to the power electronic devices and machine types in order to make the most of the available hardware. However, not all control structures are able to ensure high system performance, and there is not a unique type of controller that works perfectly for all existing setups and applications.
This thesis aims to deepen the study of the control algorithms for permanent magnet synchronous electrical machines, focusing on the system's nonlinearities.
In the beginning, the design and implementation of the current regulator are treated. Subsequently, the analysis and compensation for the nonlinearities introduced by the inverter are performed. These are general aspects that are valid for all systems, independently of the machine type and the applications.
Afterwards, two case studies are analyzed: in the first case, a permanent magnet synchronous reluctance machine is controlled in deep magnetic saturation; in the second case, a split rotor permanent magnet synchronous machine is controlled to achieve high speed in flux weakening operation. For both these cases, the mathematical model of the machine under analysis is derived, and a controller able to manage the machines' nonlinearity is proposed.
Simulations and experiments are carried out to validate the theoretical analysis
Andrew Dalby, Geoponica. Farm Work. A Modern Translation of the Roman and Byzantine Farming Handbook. – Prospect Books, Totnes (Devon) 2011. Emanuele Lelli (éd.), L’agricoltura antica. I Geoponica di Cassiano Basso, a cura di Emanuele Lelli, con la collaborazione di Giorgia Parlato, Cristiana BernacchI, Francesco G. Giannachi (Altri classici 3), 2010
No full textGuignard Christophe. Andrew Dalby, Geoponica. Farm Work. A Modern Translation of the Roman and Byzantine Farming Handbook. – Prospect Books, Totnes (Devon) 2011. Emanuele Lelli (éd.), L’agricoltura antica. I Geoponica di Cassiano Basso, a cura di Emanuele Lelli, con la collaborazione di Giorgia Parlato, Cristiana BernacchI, Francesco G. Giannachi (Altri classici 3), 2010. In: Revue des études byzantines, tome 70, 2012. pp. 278-281
Andrew Dalby, Geoponica. Farm Work. A Modern Translation of the Roman and Byzantine Farming Handbook. – Prospect Books, Totnes (Devon) 2011. Emanuele Lelli (éd.), L’agricoltura antica. I Geoponica di Cassiano Basso, a cura di Emanuele Lelli, con la collaborazione di Giorgia Parlato, Cristiana BernacchI, Francesco G. Giannachi (Altri classici 3), 2010
No full textGuignard Christophe. Andrew Dalby, Geoponica. Farm Work. A Modern Translation of the Roman and Byzantine Farming Handbook. – Prospect Books, Totnes (Devon) 2011. Emanuele Lelli (éd.), L’agricoltura antica. I Geoponica di Cassiano Basso, a cura di Emanuele Lelli, con la collaborazione di Giorgia Parlato, Cristiana BernacchI, Francesco G. Giannachi (Altri classici 3), 2010. In: Revue des études byzantines, tome 70, 2012. pp. 278-281
Conflitti identitari e pratiche delle istituzioni
No full textIl volume raccoglie saggi originati da ricerche di ambito sociologico, antropologico, etnografico, analisi qualitative dei contesti ed esperienze di formazione svolte in aree prevalentemente toscane, all’interno di istituzioni costitutive della società urbana attuale, rappresentate nelle sezioni Città, Scuola e Sanità. Con approcci e metodologie di ricerca innovativi l’insieme dei saggi costituisce un volume interdisciplinare che restituisce una visione della complessità non lineare dell’attuale costruzione sociale.
Le analisi delle interazioni all’interno di tali contesti illustrano le discrepanze tra le teorie e le pratiche istituzionali. Nell’intersezione tra politiche, aspettative e pratiche quotidiane sono esaminati effetti e potenzialità di inclusione e di esclusione dei cittadini e sono illustrate le dinamiche di alcuni conflitti sociali detti ‘interculturali’ e ‘identitari’. Emerge così, da un lato, una costruzione istituzionale riproduttrice di ineguaglianze, dall’altro, una sperimentazione di metodologie interazionali inclusive, in ambiti didattici e sanitari, finalizzate non solo ad accrescere le competenze individuali dei singoli operatori, ma anche rivolte a evidenziare i meccanismi di riproduzione degli ‘effetti indesiderati’ nelle istituzioni stesse e l’urgenza dell’adozione di strategie organizzative e politiche non discriminanti.
Il tema del conflitto attraversa i testi – e i contesti – rivelando la tendenza a essere negato piuttosto che sviluppato verso forme di negoziazione delle posizioni e dei diritti sociali. La strada è invece quella suggerita e testata nelle sperimentazioni, che mostra le potenzialità di empowerment e di costruzione di forme di interazione più paritarie e inclusive
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