Match!
Jaime Miranda
University of Chile
Scheduling (computing)Support vector machineData miningComputer scienceOperations research
29Publications
10H-index
326Citations
What is this?
Publications 29
Newest
#1Diego Olaya (Vrije Universiteit Brussel)
#2Jonathan Vasquez (Valpo: Valparaiso University)H-Index: 1
Last. Wouter Verbeke (Vrije Universiteit Brussel)H-Index: 15
view all 5 authors...
Abstract Uplift modeling is an approach for estimating the incremental effect of an action or treatment at the individual level. It has gained attention in the marketing and analytics communities due to its ability to adequately model the effect of direct marketing actions via predictive analytics. The main contribution of our study is the implementation of the uplift modeling framework to maximize the effectiveness of retention efforts in higher education institutions i.e., improvement of acade...
Source
#1Sebastián Maldonado (University of Los Andes)H-Index: 16
#2José M. Merigó (University of Chile)H-Index: 46
Last. Jaime Miranda (University of Chile)H-Index: 10
view all 3 authors...
A weighting strategy for handling outliers in binary classification using Support Vector Machine (SVM) is proposed in this work. The traditional SVM model is modified by introducing an Induced Ordered Weighted Averaging (IOWA) operator, in which the hinge loss function becomes an ordered weighted sum of the SVM slack variables. These weights are defined using IOWA quantifiers, while the order is induced via fuzzy density-based methods for outlier detection. The proposal is developed for both lin...
Source
#1José Guimón (UAM: Autonomous University of Madrid)H-Index: 9
#2Christian A. Cancino (University of Chile)H-Index: 7
Last. Jaime Miranda (University of Chile)H-Index: 10
view all 4 authors...
This article explores new mechanisms through which countries can improve their connection with global innovation networks, beyond the traditional mechanisms to absorb foreign technology such as international trade and foreign direct investment. Through the case study of Chile, we discuss new opportunities and challenges associated with the development of public policies specifically designed to attract foreign entrepreneurs and international universities. This study contributes to expanding the ...
1 CitationsSource
#1José M. Merigó (University of Chile)H-Index: 46
#2Jaime Miranda (University of Chile)H-Index: 10
Last. Catalina de la Sotta (University of Chile)H-Index: 3
view all 5 authors...
Abstract Safety Science was established in 1976 as the Journal of Occupational Accidents. Safety Science was established with the vision of promoting multidisciplinary research in the science and technology of human and industrial safety and serving as a guide for the safety of people at work and in other spheres, such as transportation, energy or infrastructure, as well as in every other field of hazardous human activities. To celebrate 40 years of publishing outstanding research, this study in...
19 CitationsSource
#1Ariel I. La Paz (University of Chile)H-Index: 4
#2Jonathan Vasquez (Valpo: Valparaiso University)H-Index: 1
Last. Jaime Miranda (University of Chile)H-Index: 10
view all 3 authors...
Descriptions of Chief Information Officer (CIO) profiles reveal challenges posed by the evolution of information systems and technologies demanding a variety of abilities and skills to meet business strategies and objectives. However, there is a perceived misalignment between the supply of and demand for different CIO profiles. By applying semisupervised segmentation techniques to a sample of individuals hired as CIOs, this article documents the mismatch and gap between supply and demand and int...
2 CitationsSource
#1Ariel I. La PazH-Index: 4
#2José GuimónH-Index: 9
Last. Christian A. CancinoH-Index: 7
view all 4 authors...
Globalization and the digital transformation offer great development possibilities, but at the same time imply new challenges and uncertainty. To face these opportunities and challenges, States promote scientific and applied research to generate and develop the innovation potential. However, the definition of policy, strategies or instruments to foster knowledge generation and transfer is a complex issue, because of the high levels of uncertainty and non-evident connections amongst variables in ...
#1Jonathan Vasquez (University of Chile)H-Index: 1
#2Jaime Miranda (University of Chile)H-Index: 10
Student attrition is a voluntary/involuntary failure or early dropout to complete a program in which an individual enrolled. For voluntary desertions, detection is more complex due to a variety of factors related to the program and individual context. National academics have complained of a research shortage about desertion student investigations in the Chilean context. We applied data-mining techniques in order to reduce lack of studies and identify key factors and predict desertions for first ...
1 CitationsSource
#1Jaime Miranda (University of Chile)H-Index: 10
#2Pablo A. ReyH-Index: 7
Last. Richard Weber (University of Chile)H-Index: 25
view all 4 authors...
The authors describe a simulation-optimization method for determining shift schedules for fare collectors in a subway network. They use an integer programming model to generate shift schedules and ...
Source
#1I. BoyanoH-Index: 2
#2N. Bravo (Hospital General Universitario Gregorio Marañón)H-Index: 2
Last. J. Olazarán (Hospital General Universitario Gregorio Marañón)H-Index: 2
view all 5 authors...
Abstract Introduction Brain microbleeds (BMB) are haemosiderin deposits contained within macrophages, which are displayed as hypointense images in some T2-weighted magnetic resonance imaging sequences. There are still many questions to be answered about the pathophysiology and clinical relevance of BMB. Development We conducted a literature review of the main epidemiological, clinical, and anatomical pathology studies of BMB performed in the general population, in patients at risk of or already ...
2 CitationsSource
#1Sebastián Maldonado (University of Los Andes)H-Index: 16
#2José M. Merigó (University of Chile)H-Index: 46
Last. Jaime Miranda (University of Chile)H-Index: 10
view all 3 authors...
Abstract In this work, the classical soft-margin Support Vector Machine (SVM) formulation is redefined with the inclusion of an Ordered Weighted Averaging (OWA) operator. In particular, the hinge loss function is rewritten as a weighted sum of the slack variables to guarantee adequate model fit. The proposed two-step approach trains a soft-margin SVM first to obtain the slack variables, which are then used to induce the order for the OWA operator in a second SVM training. Originally developed as...
16 CitationsSource
123