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Browsing by Subject "SEM"

Now showing items 1-20 of 106

'Whatever it takes' to change beliefs: Evidence from Twitter

Stiefel, Michael; Vivès, Rémi (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] The sovereign debt literature emphasizes the possibility of avoiding a selffulfilling default crisis if markets anticipate the central bank to act as the lender of last resort. Motivated by the events of summer 2012 ...
A combination of multi-period training data and ensemble methods to improve churn classification of housing loan customers

Seppälä, Tomi; Thuy, Le (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] Customer retention has been the focus of customer relationship management in the financial sector during the past decade. The first and important step in customer retention is to classify the customers into possible ...
A proposal to deal with sampling bias in social network big data

Iacus, Stefano Maria; Porro, Giuseppe; Salini, Silvia; Siletti, Elena (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] Selection bias is the bias introduced by the non random selection of data, it leads to question whether the sample obtained is representative of the target population. Generally there are different types of selection ...
A Text-Based Framework for Dynamic Shopping-Cart Analysis

Kamakura, Wagner (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] Market Basket Analysis (MBA), also known as Association Rule Mining (ARM), is already widely known and utilized by traditional and online retailers. This practice has its origin in the data-mining literature, with ...
Access and analysis of ISTAC data through the use of R and Shiny

González-Martel, Christian; Cazorla-Artiles, José M.; Pérez-González, Carlos (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] The increasing availability of open data resources provides opportunities for research and data science. It is necessary to develope tools that take advantage of the full potential of new information resources. In ...
Algorithmic Trading Systems Based on Google Trends

Gómez Martínez, Raúl; Prado Román, Camilo; De la Orden de la Cruz, María del Carmen (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] In this paper we analyze five big data algorithmic trading systems based on artificial intelligence models that uses as predictors stats from Google Trends of dozens of financial terms. The systems were trained using ...
An Unconventional Example of Big Data: BIST-100 Banking Sub-Index of Turkey

Çelik, Sadullah; İşbilen, Elif (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] This paper applies Big Data concept to an emerging economy stock exchange market by examining the relationship between price and volume of the Banking index in BIST-100. Stock markets have been commonly analyzed in ...
Análisis de la formación de nanopigmentos con extracto de achiote usado en el teñido de algodón 100%.

Bonet-Aracil, Marilés; Carvajal-Endara, Elmer-Arturo; Bou-Belda, Eva; Gualoto Mafla, Fausto (Pontificia Universidad Católica del Ecuador, 2023-06-12)

[EN] The search for more sustainable and less polluting alternatives for the textile industry has led to exploring the use of natural and organic pigments for dyeing fabrics. The objective of this research is to analyze ...
Análisis de la relación causal de la responsabilidad social corporativa y la performance financiera de las empresas

Poyatos León, Juan Ángel (Universitat Politècnica de València, 2015-03-31)

El objetivo del trabajo es analizar las relaciones entre la Responsabilidad Social Corporativa, RSC y la performance financiera de empresas europeas, buscando una posible relación causal entre ambas dimensiones. Hasta la ...
Análisis y nueva propuesta de plan de comunicación para el Medusa Sunbeach Festival

Lencina Calatayud, Daniel (Universitat Politècnica de València, 2019-01-08)

[ES] El trabajo propuesto incluye un análisis de la evolución del plan de comunicación del Medusa Sunbeach Festival así como del propio plan de comunicación actual. También se incluyen posibles propuestas y medidas a tomar ...
Aplicacion de microcápsulas con lavadora doméstica. Comportamiento

Bou-Belda, Eva; Monllor Pérez, Pablo; Bonet Aracil, María Angeles; Gisbert Paya, Jaime; Montava Seguí, Ignacio José (Asociación Española de Químicos y Coloristas Textiles (AEQCT), 2012-11)

[EN] There are many application systems of microcapsules on textiles substrates, depending on the process used the result will be different, having to decide the optimal process for the function to be performed by the ...
Assessing the importance of managerial accuracy of perceptions

Narangajavana, Y.; Garrigós Simón, Fernando José; Gil Pechuán, Ignacio (Springer Verlag, 2013-02-13)

This article sets out to observe how the accuracy of perception by hospitality managers of the new competitive framework arising out of the advent of the internet has affected the choice of strategy and entrepreneurial ...
Automated Detection of Customer Experience through Social Platforms

Bustamante, Juan; Kuffo, Leonardo; Izquierdo, Edgar; Vaca, Carmen (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] The emergence and acceptance of social media have become a crucial aspect of daily lives in the worldwide population. As a result of this phenomenon, it is not surprising that customers’ buying patterns exhibit ...
Big data analytics in returns management – Are complex techniques necessary to forecast consumer returns properly?

Asdecker, Björn; Karl, David (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] The more people shop online, the more consumer returns e-tailers face. In order to plan the returns management process capacity adequately, it is necessary to forecast the expected amount of returned parcels. Big data ...
Big Data and Data Driven Marketing in Brazil

Finger, Vítor; Reichelt, Valesca; Capelli, João (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] The main purpose of this article is the understanding of which marketing strategies related to big data are being implemented by Brazilian companies in different sectors, in addition to assessing these actions within ...
Big data and official data: a cointegration analysis based on Google Trends and economic indicators

Crosato, Lisa; Mariani, Paolo; Marletta, Andrea; Zavanella, Biancamaria (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] In this paper the relationship between the Industrial Production Index (IPI), the confidence index for the manufacturing sector and Google searches for several words linked to the economic situation is explored. In ...
Big Data Sources for Private Consumption Estimation: Evidence from Credit and Debit Card Records

Valdivieso-Anívarro, María; Vicente, María (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] Recent research has shown that big data sources provide timely granular information of human behavior. Compared to traditional survey-based statistics which rely on individuals properly recalling and reporting ...
Binder effectiveness of microcapsules applied onto cotton fabrics during laundry

Bonet Aracil, María Angeles; Bou Belda, Eva; Monllor Pérez, Pablo; Gisbert; Jaime (Taylor & Francis, 2016)

[EN] Microcapsules can be added to fabric in industrial processes; however, they have not been widely spread among industrial companies. In this study, we suggest the possibility of reloading microcapsules onto a fabric ...
Blockchain-backed analytics. Adding blockchain-based quality gates to data science projects

Herrmann, Markus; Petzold, Jörg; Bombatkar, Vivek (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] A typical analytical lifecycle in data science projects starts with the process of data generation and collection, continues with data preparation and preprocessing and heads towards project specific analytics, ...
Characterisation of thermal and chemical properties of photo-oxidized reinforced Mater-Bi KE/natural fibres biocomposites degraded in soil

Moriana Torró, Rosana (Universitat Politècnica de València, 2016-02-22)

Reinforced biocomposites of natural fibres (cotton and kenaf fibres) with a commercial biodegradable material (Mater-Bi KE03B1) were subjected to an accelerated soil burial test. A set of samples was previously photo-oxidized ...