Search results for "Information Retrieval"
showing 10 items of 924 documents
Integrating transaction cost economics and the resource-based view in services and innovation
2009
[EN] This study examines the complementary nature of Williamson's transaction cost theory and that of the resource-based view in the integration or externalisation of activities, with particular reference to services. Assessing comparative costs, idiosyncratic demands and core competences form the criteria for make or buy decisions, although the analysis of services endows idiosyncratic demands with particular relevance when internalisation of services does neither contribute cost advantages nor others related to the core competences of the firm. In addition to these make or buy questions, this study considers the front/back model in cases where the firm manages services internally.
Indexing Method for Transitive Relationships of Product Information
2008
To successfully use a relational database management system (RDBMS) as a repository for product information, the RDBMS must efficiently process and properly answer ontological queries. The key to processing the ontological queries is whether the various semantic relationships among the concepts of the product ontology are likewise well-processed. In particular, the transitive relationships (e.g., is-a, component-of relationships) such as ancestors-descendents, parents-children, and taxonomy of products must be processed successfully. We propose an efficient index using a numbering scheme (labeling scheme) to process queries over transitive relationships. (This paper is an extended version o…
Transnational Social Network Analysis
2012
AbstractThe following article discusses methods of social network analysis (SNA) as an approach in researching transnational social formations. SNA allows transnationality to be studied through relationships between actors, enabling the investigation of social structures which expand nation-state frameworks. Two empirical examples are used to address the central characteristics of the network analysis approach (focus on relations, systematic collection of data, means of visualising network data) and their relevance for research on cross-border social phenomena. The article also investigates the significance of geographical mobility in the research process, culminating in reflection on how “…
A relational model for unstructured documents
1987
The logical structure of a document is usually a tree in which the order of the nodes is important at least at some level of the tree. We call a document unstructured if its structure is a single-level ordered tree. The purpose of this paper is to present a many-sorted algebra for handling unstructured documents. The documents in the model are represented by relations. An algebra for handling documents of one type can be extended to an algebra for handling documents of several types. Further, an algebra for handling documents can be extended by the relational algebra for handling documents and relations in a common algebra. The model of this paper can be regarded as a part of a general docu…
Optimization of Low-Cost Monitoring Systems for On-Site Earthquake Early-Warning of Critical Infrastructures
2020
In the last years, monitoring systems based on low-cost and miniaturized sensors (MEMS) revealed as a very successful compromise between the availability of data and their quality. Also applications in the field of seismic and structural monitoring have been constantly increasing in term of number and variety of functions. Among these applications, the implementation of systems for earthquake early warning is a cutting-edge topic, mainly for its relevance for the society as millions of peoples in various regions of the world are exposed to high seismic hazard. This paper introduces the optimization of an already established seismic (and structural) monitoring system, that would make it suit…
Product-Service Systems in the Digital Era: Deconstructing Servitisation Business Model Typologies
2021
The identification of business model typologies of servitised firms is part of a long research tradition. However, the relevance of many existing typologies in the contemporary context, in which digitalisation is central to business model innovation, may be questioned. Thus, in this chapter, we revisit the existing literature and continue the conceptual discussion about the categorisation of product-service system business models. We propose a conceptual product-service system business model framework with three independent continuums: the degrees of ownership retention, results-orientedness and smartness. Based on this framework, we derive a new product-service system business model typolo…
SERVICE-ORIENTED BUSINESS MODELS IN MANUFACTURING IN THE DIGITAL ERA: TOWARD A NEW TAXONOMY
2020
A stream of servitisation research has focused on the construction of taxonomies and typologies of product–service system business models (BMs). However, their relevance in the context of increased utilisation of digital technologies may be questioned. Thus, the purpose of this paper is to empirically revisit the existing product–service system BM taxonomies to explore the following research question: How can the BMs of servitised manufacturing firms be categorised in the digital era? The question is addressed through an embedded case study of five servitised firms. We found that the firms’ BMs varied with regard to the degree of the suppliers’ ownership of delivered products, degree of sma…
Protocolo técnico para la fotografía de fuentes filológicas primarias
2014
con fines documentales, proyectado para garantizar la máxima fidelidad posible al motivo original representado. Tras una descripción detallada del material necesario, seleccionado específicamente en función de las necesidades particulares de la fotografía de textos manuscritos o impresos, se desarrolla un procedimiento adaptado a las nuevas circunstancias de la fotografía digital, concebido en dos fases: la captación de la imagen en formato RAW, y su posterior edición. En este estudio se trata la primera parte, describiendo sistemáticamente, paso a paso, las decisiones técnicas relativas a los ajustes fotográficos de la toma en diferentes situaciones lumínicas, encaminadas a maximizar la ca…
El arte de poesía castellana. Desde el pensamiento poético de Encina hacia una colección digital de tratados poéticos
2017
This paper presents the project Poetriae, focusing on the steps already taken and on the ongoing work, as well as on its methods and future steps. Mainly, Poetriae aims at building a digital library of Medieval and Golden Age Castilian poetry treatises. It will create digital editions for them, by philologically marking up each metrical and poetic concept in an unambiguous way, in order to allow treatises to be retrievable not just by bibliographic metadata, but also by key concepts, such as poetic genre, stanza types, rhyme, etc. The project also intends to enable automatic analysis and visualizations of such data. Design and application of specific vocabularies for poetry and metrics are …
Research Directions of OLAP Personalizaton
2011
In this paper we have highlighted five existing approaches for introducing personalization in OLAP: preference constructors, dynamic personalization, visual OLAP, recommendations with user session analysis and recommendations with user profile analysis and have analyzed research papers within these directions. We have provided an evaluation in order to point out (i) personalization options, described in these approaches, and its applicability to OLAP schema elements, aggregate functions, OLAP operations, (ii) the type of constraints (hard, soft or other), used in each approach, (iii) the methods for obtaining user preferences and collecting user information. The goal of our paper is to syst…