Search results for "platforms"

showing 10 items of 80 documents

Facies and geometry of an Upper Jurassic-Lower Cretaceous carbonate rimmed-shelf system from Northwestern Sicily

2011

Upper Jurassic-Lower Cretaceous carbonate shallow-water successions, several hundreds of meters thick, outcropping in the Palermo Mountains (NW Sicily, Italy), are analyzed in their sedimentological features for environmental reconstructions. In the Palermo Mts., the northernmost thrust system of the western Sicily fold and thrust belt, tectonic bodies, consisting of Upper Triassic-to-Eocene shallow-water carbonates (Panormide carbonate platform), outcrop. Detailed facies and microfacies analyses, stratigraphic measurements and physical stratigraphy studies of the Tithonian-Neocomian carbonates point out the occurrence of several lithofacies, from tidal flat to reef environments. Due to the…

Settore GEO/02 - Geologia Stratigrafica E SedimentologicaCarbonate platforms
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Processi paleocarsici e geositi: il caso del “libeccio antico” nel distretto marmifero di Custonaci, Sicilia nord-occidentale

2016

Abstract The Upper Triassic strata that crops out along the northern slope of Monte Sparagio, in the Custonaci “marble” district in northwestern Sicily, show an extensive development of dissolution cavities with a very variable shape and dimensions. Several different types of dissolution morphologies can be differentiated from microkarst to giant caverns. The cavities are filled up by polychrome silts or calcite cements or, in the larger caverns, by collapse breccias. The matrix between the collapse breccias is a polychrome silt that gives rise to an attractive ornamental stone, quarried in the past with the name of “Libeccio Antico”. The diagenetic processes that have controlled the format…

Settore GEO/02 - Geologia Stratigrafica E Sedimentologicacarbonate platforms dissolution karst geosite Triassic Sicily
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Does diversification pay in the app market? Evidence from Apple's App Store and Google Play

2016

In this paper we address the study of the effects of product line diversification on firm performance in the mobile application market. Specifically, we shed light on whether the distribution platform ecosystem where developers commercialize their apps influence the effect of product line diversification, i.e., diversification across different app categories, on developer sales performance. To these purposes, we compare the sales performance of diversified developers with that of category-specialized developers in the two major app stores (namely, Apple’s App Store and Google Play). Our results show that the diversification strategy has a positive impact on developer sales in Google Play, w…

Settore ING-IND/35 - Ingegneria Economico-GestionaleDiversification Mobile App Market Distribution Platforms Ecosystems Empirical analysis.
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Mobile agent application fields

2004

Publisher Summary Mobile agents are a recent paradigm for software design, which extends object oriented programming features. An agent can perform its task autonomously; a mobile agent can carry out complex tasks that require the agent to migrate from a network place to another one. Mobile agent application fields are many. It can replace web services in other cases, mobile agents and web services can be an effective solution together. The chapter discusses the three mobile agent application fields, which are: parallel and distributed computing, data mining and information retrieval, and networking. An overview of the development platforms is also discussed. Data mining and information ret…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniComputer scienceDistributed computingMobile computingMobile WebMobile Agents Parallel and Distributed Computing Information Retrieval Data Mining Networking Platforms.computer.software_genreMobile databaseMobile searchSoftware designMobile technologyMobile agentWeb servicecomputer
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A proposito di piattaforme e cinema

2021

SciFi Club e Uam.TV are just two of the new streaming platforms for cinema that are creating a vast and varied panorama of film proposals for the web.

Settore L-ART/06 - Cinema Fotografia E TelevisionePostcinema platforms New Media
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Supporting Multi-Sided Platform firms to maintain rapid growth (and to avoid failure) over time through a Dynamic Business Modelling approach

2020

Over the last few decades, the diffusion of the sharing economy has nurtured continuous changes in business model opportunities with multi-sided platforms (MSPs) in many industries. MSPs are digital exchange platforms aiming at connecting unmatched demand- and supply- side participants through the use of internet technology. In many cases, such start-up initiatives have led to the creation of scale-up or high-growth firms (HGFs). However, in spite of the significant contribution to both economic development and employment, current studies seem to investigate primarily in an isolated perspective HGFs, MSPs and their business model innovation (BMI). The existing literature on HGFs focuses on …

Settore SECS-P/07 - Economia Aziendalehigh-growth firms multi-sided platforms business model innovation dynamic business modelling system dynamics
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Design and analysis of discrete choice experiments for models with response time

2013

Settore SECS-S/02 - Statistica Per La Ricerca Sperimentale E TecnologicaA sector of conjoint analysis (experimental design in marketing research) is made of the so called choice experiments. In choice experiments respondents undergo a questionnaire which is nowadays mostly submitted through the internet. The questionnaire proposes to the respondent a sequence of choice sets each one including two or more profiles being a profile a specific combination of attribute levels. The respondent selects the preferred profile for each choice set. Responses given by a sample of respondents are analysed through suitable methods aimed to eventually find the best combination of attribute levels. One method of analysis adopts the Multinomial Logit (MLN) model. In this article the authors show the results of the MLN analysis compared with another model of analysis which uses an additional response which can be easily recorded by electronically submitted questionnaires. In practice modern survey platforms like “Qualtrics” (the one used for this work) can record the so called “response latency” i.e. the time taken by the respondent to make the choice and select the most preferred profile in the choice set. Thanks to a response latency model further refined in this work it is possible to deduce the relative weight of importance of the profiles for each choice set and respondent. This type of response can be used in place of the dichotomous choice variable in the MLN model. The two models and methods of analysis are deeply compared and it is critically discussed when it is better to use one or the other method. As a result a more reliable estimate of the optimal profile comes up implying lower risks for new investments and marketing decisions.
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The challenge for economics from the new 'digital' economy: sharing and collaborative economy through the 'platforms neocapitalism' of the 21st centu…

2021

The so-called collaborative or sharing economy constitutes a multifaceted concept of increasing relevance and evolving in definition that will constitute the focus of our study. This article is presented methodologically as a macro-synthesis of the main trends of the economy, from its local and global spheres, in the convergence that can be glimpsed from the new phenomenon that we are dealing with of neo-capitalism based essentially on digital platforms and media. Some have already advanced it as turbo-capitalism or capitalism 3.0, in increasing expansion from the analysis of massive data from digital platforms. The resulting greater efficiency of decentralization and heterogeneity can be e…

Sharing economysharing economy; digital platforms; collaborative economyBusinessDigital economyEconomic systemEconomia
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The Power of Word-Frequency Based Alignment-Free Functions: a Comprehensive Large-Scale Experimental Analysis

2021

Abstract Motivation Alignment-free (AF) distance/similarity functions are a key tool for sequence analysis. Experimental studies on real datasets abound and, to some extent, there are also studies regarding their control of false positive rate (Type I error). However, assessment of their power, i.e. their ability to identify true similarity, has been limited to some members of the D2 family. The corresponding experimental studies have concentrated on short sequences, a scenario no longer adequate for current applications, where sequence lengths may vary considerably. Such a State of the Art is methodologically problematic, since information regarding a key feature such as power is either mi…

Statistics and ProbabilitySequenceSimilarity (geometry)Settore INF/01 - Informaticasequence analysisComputer sciencepower statisticsAlignment-Free Genomic Analysis Big Data Software Platforms Bioinformatics AlgorithmsScale (descriptive set theory)Function (mathematics)computer.software_genreBiochemistryComputer Science ApplicationsSet (abstract data type)Computational MathematicsRange (mathematics)Computational Theory and Mathematicssequence analysis; power statistics; alignment-free functionsalignment-free functionsData miningCompleteness (statistics)Molecular BiologycomputerType I and type II errors
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Value Creation and Power Asymmetries in Digital Ecosystems : A Study of a Cloud Gaming Provider

2020

Digital platforms connecting users and service providers have a central role in determining the value creation structure of ecosystems. Platform developers try to achieve a dominant position for the platform with a strong ecosystem around it. The size and attractiveness of the services can attract new users, and growing user volume can bring new co-operative service providers to the service partner network. An interesting question is how the presence of power and potential power asymmetry affect the value creation capability and the structure of a network around a platform? This chapter describes an example of value creation and the influence of power asymmetry in a digital ecosystem built …

Structure (mathematical logic)AttractivenessService (business)alustatalousComputer sciencebusiness.industryCloud gamingarvonluontiVolume (computing)digital ecosystems512 Business and managementdigital platformsService providerpartner networksDigital ecosystempilvipalvelutPosition (finance)digitalisationTelecommunicationsbusinessdigitalisaatioverkkopelit
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