scholarly journals Web personalization: The state of the art and future avenues for research and practice

2016 ◽  
Vol 33 (4) ◽  
pp. 1088-1104 ◽  
Author(s):  
Ville Salonen ◽  
Heikki Karjaluoto
2009 ◽  
Vol 2009 ◽  
pp. 1-19 ◽  
Author(s):  
Xiaoyuan Su ◽  
Taghi M. Khoshgoftaar

As one of the most successful approaches to building recommender systems, collaborative filtering (CF) uses the known preferences of a group of users to make recommendations or predictions of the unknown preferences for other users. In this paper, we first introduce CF tasks and their main challenges, such as data sparsity, scalability, synonymy, gray sheep, shilling attacks, privacy protection, etc., and their possible solutions. We then present three main categories of CF techniques: memory-based, model-based, and hybrid CF algorithms (that combine CF with other recommendation techniques), with examples for representative algorithms of each category, and analysis of their predictive performance and their ability to address the challenges. From basic techniques to the state-of-the-art, we attempt to present a comprehensive survey for CF techniques, which can be served as a roadmap for research and practice in this area.


2021 ◽  
Vol 12 ◽  
Author(s):  
Javier Fernández-Álvarez ◽  
Héctor Fernández-Álvarez

With the advent of COVID-19, a sudden, unexpected, and forced shift has been produced in the field of psychotherapy. Worldwide, many therapists closed their offices and started to deliver psychotherapy online through a screen. Although different media started to be incorporated, videoconferencing is undoubtedly the most common way in which therapists are doing therapy these days. This is catalyzing a rapid change in the practice of psychotherapy with probable lasting effects and deserves to be carefully reflected upon. Therefore, in this paper our aim is to outline the main challenges for a medium that may have arrived to stay. In that sense, we review the literature to describe the state-of-the-art regarding the main aspects of videoconferencing psychotherapy as well as to suggest possible avenues for future research and practice.


2020 ◽  
Vol 12 (24) ◽  
pp. 10504
Author(s):  
Anastasia Roukouni ◽  
Gonçalo Homem de Almeida Correia

In recent years, shared mobility services have had a growing presence in cities all over the world. Developing methodologies to measure and evaluate the impacts of shared mobility has therefore become of critical importance for city authorities. This paper conducts a thorough review of the different types of methods that can be used for this evaluation and suggests a classification of them. The pros and cons of each method are also discussed. The added value of the paper is twofold; first, we provide a systematic recording of the state of the art and the state of the practice regarding the evaluation of the impacts of shared mobility, from the perspective of city authorities, reflecting on their role, needs, and expectations. Second, by identifying the existing gaps in the literature, we highlight the specific needs for research and practice in this field that can help society figure out the role of urban shared mobility.


Author(s):  
Michael C. Fu ◽  
Guzin Bayraksan ◽  
Shane G. Henderson ◽  
Barry L. Nelson ◽  
Warren B. Powell ◽  
...  

Author(s):  
Shan Chen ◽  
Mary-Anne Williams

Ontology learning has been identified as an inherently transdisciplinary area. Personalized ontology learning for Web personalization involves Web technologies and therefore presents more challenges. This chapter presents a review of the main concepts of ontologies and the state of the art in the area of ontology learning from text. It provides an overview of Web personalization, and identifies issues and describes approaches for learning personalized ontologies. The goal of this survey is—through the study of the main concepts, existing methods, and practices of the area—to identify new connections with other areas for the future success of establishing principles for this new transdisciplinary area. As a result, the chapter is concluded by presenting a number of possible future research directions.


2017 ◽  
Author(s):  
James P. Sampson ◽  
Emily Bullock-Yowell ◽  
V. Casey Dozier ◽  
Debra S. Osborn ◽  
Janet G. Lenz ◽  
...  

2012 ◽  
Vol 8 (4) ◽  
pp. 15-33 ◽  
Author(s):  
Frank-Dieter Dorloff ◽  
Ejub Kajan

To reach this interoperability visibility and common understanding must be ensured on all levels of the interoperability pyramid. This includes common agreements about the visions, political and legal restrictions, clear descriptions about the collaboration scenarios, included business processes and-rules, the type and roles of the Documents, a common understandable vocabulary, etc. To do this in an effective and automatable manner, ICT based concepts, frameworks and models have to be defined, that have to be known and understood, accepted and that have to provide additional e-benefits for all participating partners. In addition, ICT systems, tools and other instruments must be compliant with all the restrictions defined by the interoperability pyramid and they have to support the work properly and efficient, and last but not least they have to ensure trust and minimize e-business risks. Nowadays, many profitable and well working individual solutions on the market may be found. But there still is a gap for more general and well working interoperability solutions. This article shows the state of the Art in Research and Practice in building, managing and maintaining E-Business solutions under the focus to enhance interoperability based on standards, protocols and other helpful concepts, instruments and examples. To provide better understanding for non-specialists, also, the authors systemize the complex and interdisciplinary content and offer additional helpful explanations.


2019 ◽  
Vol 14 (5) ◽  
pp. 21
Author(s):  
Gianpaolo Abatecola

How can be crises classified? What does the term “corporate crisis” mean? Corporate crises have always been a topic of tremendous interest for both the research in and practice of strategic management at an international level. Attention has been given to elaborating appropriate interpretative conceptualizations, together with implementing effective and efficient predicting and countervailing models. To date, scholars have seemingly reached consensus as to the meaning of crises. Conversely, identifying determinants and temporal dynamics still seems to be a lively question to address. This is why in this article we critically review the state of the art on the topic, from which we derive some important implications for the present and future research and practice in the strategic management field.


Author(s):  
T. A. Welton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.


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