Search results for "relevance"
showing 10 items of 500 documents
A naive relevance feedback model for content-based image retrieval using multiple similarity measures
2010
This paper presents a novel probabilistic framework to process multiple sample queries in content based image retrieval (CBIR). This framework is independent from the underlying distance or (dis)similarity measures which support the retrieval system, and only assumes mutual independence among their outcomes. The proposed framework gives rise to a relevance feedback mechanism in which positive and negative data are combined in order to optimally retrieve images according to the available information. A particular setting in which users interactively supply feedback and iteratively retrieve images is set both to model the system and to perform some objective performance measures. Several repo…
Dynamic routing-and-inventory problems: a review
1998
The paper presents a review of the available literature on a class of problems denoted as dynamic routing-and-inventory (DRAI) problems. They are characterized by the simultaneous relevance of routing and of inventory issues in a dynamic environment, within the framework of distribution logistics. A classification scheme is first proposed for these problems. Then the results obtained in this area are summarized. Finally, the papers available in the literature are clustered and discussed according to the proposed scheme.
The relevance of biographic narratives for social workers’ professional memory, reflexivity and identity
2020
The present article is about the use of biographic methods and oral history, and its contribution to developing processes of critical reflection and reflexivity. It is based on a set of oral data collected from Portuguese social workers who played an active role in the revolutionary phase during the transition from dictatorship to democracy in Portugal (following the 25th April 1974 military coup). The article explores how the use of biographic methods (integrated within a historical methodological framework), other than simply producing accounts of past experiences, allowed interviewees to re-capture, re-interpret and re-signify their own experiences in the light of changing professional …
Parents' experiences of early support.
2012
In Finland, support for families with children is given, as far as possible, as part of basic services. However, to support basic services, services of this kind have also been generated as the result of several projects. The public sector itself has been reorganized and reformed to more resemble a project. In this article, the experiences of parents with children receiving project-based support are studied qualitatively. Preventive support was offered via child health and maternity clinics in the form of home visiting. The reform of the municipal and service structure has made the development of preventive services an issue of even greater current relevance. The purpose of the study was to…
Understanding the Role of Emotion in Self-Service Technology Adoption: A Structured Abstract
2015
Recent advances in technology have given organizations the opportunity to provide self-service through the medium of technology, and accordingly, the provision of these technology-based services has increased in the last decade (Holman & Buzek, 2007; Lee et al., 2010). Providing consumers with the opportunity for self-service allows organizations to reduce the number of staff members needed to provide a service to customers (Meuter et al., 2000). This allows organizations to speed up a service while maintaining costs, or to maintain speed while reducing costs. Importantly though, when providing these self-service options, organizations must ensure that standards of service are maintained in…
Assessing the role of evidence of mechanisms in causal extrapolation
2020
Extrapolation of causal claims from study populations to other populations of interest is a problematic issue. The standard approach in experimental research, which prioritises randomized controlled trials and statistical evidence, is not devoid of difficulties. Granted that, it has been defended that evidence of mechanisms is indispensable for causal extrapolation. We argue, contrarily, that this sort of evidence is not indispensable. Nonetheless, we also think that occasionally it may be helpful. In order to clarify its relevance, we introduce a distinction between a positive and a negative role of evidence of mechanisms. Our conclusion is that the former is highly questionable, but the l…
Internet Disclosure by Nonprofit Organizations: Empirical Evidence of Nongovernmental Organizations for Development in Spain
2009
This article examines the relevance of technology, and particularly the Internet, for the improvement of accountability and transparency in nonprofit organizations. The novelty of our work regarding the previous empirical evidence resides in the fact that we have taken into account the means through which these organizations diffuse voluntary information. In this article, we have proposed a model of information disclosure for the Web sites of Spanish nongovernmental organizations for development (NGODs) that can serve as a guide for improving their informative transparency and their accountability. The empirical evidence obtained reveals that Spanish NGOD Web sites are primarily ornamental…
Visual Re-Ranking for Multi-Aspect Information Retrieval
2017
We present visual re-ranking, an interactive visualization technique for multi-aspect information retrieval. In multi-aspect search, the information need of the user consists of more than one aspect or query simultaneously. While visualization and interactive search user interface techniques for improving user interpretation of search results have been proposed, the current research lacks understanding on how useful these are for the user: whether they lead to quantifiable benefits in perceiving the result space and allow faster, and more precise retrieval. Our technique visualizes relevance and document density on a two-dimensional map with respect to the query phrases. Pointing to a locat…
Legitimacy and relevance of a performance measurement system in a Finnish public-sector case
2019
Purpose This study investigates the difficulties involved in translating stakeholder expectations into action and maintaining legitimacy through the use of a performance measurement system (PMS) created in a Finnish regional development company (RDC). This longitudinal case study illustrates the fluctuating and socially constructed nature of legitimacy in the public sector. Design/methodology/approach This qualitative case study longitudinally analyzes the various developments occurring during and after the development of a PMS system for the case organization. Empirical data include interviews, workshops, observation and other materials relating to the case organization. Findings The init…
Phosphorylation of CENP-A on serine 7 does not control centromere function.
2019
CENP-A is the histone H3 variant necessary to specify the location of all eukaryotic centromeres via its CENP-A targeting domain and either one of its terminal regions. In humans, several post-translational modifications occur on CENP-A, but their role in centromere function remains controversial. One of these modifications of CENP-A, phosphorylation on serine 7, has been proposed to control centromere assembly and function. Here, using gene targeting at both endogenous CENP-A alleles and gene replacement in human cells, we demonstrate that a CENP-A variant that cannot be phosphorylated at serine 7 maintains correct CENP-C recruitment, faithful chromosome segregation and long-term cell viab…