Search results for "CROWD"
showing 10 items of 265 documents
On the signaling effect of reward-based crowdfunding: (When) do later stage venture capitalists rely more on the crowd than their peers?
2021
Abstract Venture capitalists (VCs) make only a small number of investments and are more likely to invest in ventures where other VCs have invested previously. As such, valuable opportunities may be forgone if they are not funded by VCs in the first place. We demonstrate how crowdfunding (CF) can remedy this concern. Using a sample of new technology-based ventures, we reveal that ventures initially funded through reward-based CF can be even more likely than those initially backed by VCs in attracting follow-up funds from VCs. This happens when ventures originally funded via reward-based CF complement the certification they derive from CF with patents and a founding team with a track record o…
Découverte des relations dans les réseaux sociaux
2011
In recent years, social network sites exploded in popularity and become an important part of the online activities on the web. This success is related to the various services/functionalities provided by each site (ranging from media sharing, tagging, blogging, and mainly to online social networking) pushing users to subscribe to several sites and consequently to create several social networks for different purposes and contexts (professional, private, etc.). Nevertheless, current tools and sites provide limited functionalities to organize and identify relationship types within and across social networks which is required in several scenarios such as enforcing users’ privacy, and enhancing t…
Analysis of Predisposing Factors for Rapid Dental Calculus Formation.
2020
Background: Calculus accumulation varies widely between individuals. Dental calculus has been associated with the principal periodontal diseases. The aim of this study was to analyze individual characteristics, and salivary and microbiological parameters among patients considered to be rapid calculus formers and patients who form calculus slowly. Methods: Individual characteristics were recorded in a sample of 74 patients (age, sex, smoking, periodontal diagnosis, and dental crowding), as well as salivary parameters (unstimulated saliva flow, pH, and biochemical analysis of saliva) and microbiological parameters (by means of semi-quantitative polymerase chain reaction (PCR) analysis). Resul…
Menzione d'Onore Borgo Vecchio Factory
2018
Il Premio Compasso d’Oro ADI è il massimo riconoscimento italiano al progetto, al prodotto, alla ricerca di disegno industriale. È stato istituito a Milano nel 1954 dai grandi magazzini la Rinascente per incentivare l’“estetica del prodotto” e il nascente design italiano. Il marchio del premio, che fa riferimento al compasso di Adalbert Göringer e alla proporzione aurea, è stato disegnato dal grafico Albe Steiner, mentre il compasso d’oro tridimensionale è a firma degli architetti Alberto Rosselli e Marco Zanuso. Nel 1958 il premio è stato ceduto da la Rinascente all’ADI Associazione per il Disegno Industriale, che ogni due anni ne cura l’organizzazione attraverso le selezioni di una giuria…
Borgo Vecchio Factory
2016
ADI Design Index è la selezione annuale del miglior design italiano ed è parte integrante del sistema di selezione del Premio Compasso d’Oro ADI: ogni anno, grazie all’Osservatorio Permanente del Design ADI – un gruppo di lavoro costituito da oltre cento esperti, anche esterni all’associazione – prende in esame su tutto il territorio italiano il design dei nuovi prodotti messi in produzione. Dopo una strutturata selezione (commissioni territoriali, tematiche e comitato di selezione finale), i migliori prodotti di design vengono presentati, con un commento critico che evidenzia i motivi della scelta, su ADI Design Index. I volumi diventano la base su cui lavora la giuria internazionale del C…
Smart Cities Atlas Western and Eastern Intelligent Communities
2016
The book discusses the concept of the smart city, and is based on a multi-service and multi-sectoral approach to urban planning, including various urban functions and the human capital of cities. The work is divided into three parts. The first is an introductory section which covers definitions, policies and tools used at European level for the development and classification of a smart city. The second presents a selection of examples of Western and Eastern communities, which experienced technologies and strategies that have made them smart. The third describes in detail the main three possible approaches (economical, technological and social) to the smart city concept which are the focus a…
A Novel Recruitment Policy to Defend against Sybils in Vehicular Crowdsourcing
2021
Vehicular Social Networks (VSNs) is an emerging communication paradigm, derived by merging the concepts of Online Social Networks (OSNs) and Vehicular Ad-hoc Networks (VANETs). Due to the lack of robust authentication mechanisms, social-based vehicular applications are vulnerable to numerous attacks including the generation of sybil entities in the networks. We address this important issue in vehicular crowdsourcing campaigns where sybils are usually employed to increase their influence and worsen the functioning of the system. In particular, we propose a novel User Recruitment Policy (URP) that, after extracting the participants within the event radius of a crowdsourcing campaign, detects …
Improving the User Experience in Cultural Heritage Sites
2014
A Fog-Based Application for Human Activity Recognition Using Personal Smart Devices
2019
The diffusion of heterogeneous smart devices capable of capturing and analysing data about users, and/or the environment, has encouraged the growth of novel sensing methodologies. One of the most attractive scenarios in which such devices, such as smartphones, tablet computers, or activity trackers, can be exploited to infer relevant information is human activity recognition (HAR). Even though some simple HAR techniques can be directly implemented on mobile devices, in some cases, such as when complex activities need to be analysed timely, users’ smart devices can operate as part of a more complex architecture. In this article, we propose a multi-device HAR framework that exploits the fog c…
SMCP: a Secure Mobile Crowdsensing Protocol for fog-based applications
2020
Abstract The possibility of performing complex data analysis through sets of cooperating personal smart devices has recently encouraged the definition of new distributed computing paradigms. The general idea behind these approaches is to move early analysis towards the edge of the network, while relying on other intermediate (fog) or remote (cloud) devices for computations of increasing complexity. Unfortunately, because both of their distributed nature and high degree of modularity, edge-fog-cloud computing systems are particularly prone to cyber security attacks that can be performed against every element of the infrastructure. In order to address this issue, in this paper we present SMCP…