21 research outputs found
A linear optimization based method for data privacy in statistical tabular data
National Statistical Agencies routinely disseminate large amounts of data. Prior to dissemination these data have to be protected to avoid releasing confidential information. Controlled tabular adjustment (CTA) is one of the available methods for this purpose. CTA formulates an optimization problem that looks for the safe table which is closest to the original one. The standard CTA approach results in a mixed integer linear optimization (MILO) problem, which is very challenging for current
technology. In this work we present a much less costly variant of CTA that formulates a multiobjective linear optimization (LO) problem, where binary variables are pre-fixed, and the resulting continuous problem is solved by lexicographic optimization. Extensive computational results are reported using both commercial (CPLEX and XPRESS) and open source (Clp) solvers, with either simplex or interior-point methods, on a set of real instances. Most instances were successfully solved with
the LO-CTA variant in less than one hour, while many of them are computationally very expensive with the MILO-CTA formulation. The interior-point method outperformed simplex in this particular application.Peer ReviewedPreprin
Balancing confidentiality and usability : Protecting sensitive data in the case of the inward Foreign AffiliaTes Statistics (FATS)
Suomen virallinen tilasto (SVT
The drivers of Corporate Social Responsibility in the supply chain. A case study.
Purpose: The paper studies the way in which a SME integrates CSR into its corporate strategy, the practices it puts in place and
how its CSR strategies reflect on its suppliers and customers relations.
Methodology/Research limitations: A qualitative case study methodology is used. The use of a single case study limits the
generalizing capacity of these findings.
Findings: The entrepreneur’s ethical beliefs and value system play a fundamental role in shaping sustainable corporate strategy.
Furthermore, the type of competitive strategy selected based on innovation, quality and responsibility clearly emerges both in
terms of well defined management procedures and supply chain relations as a whole aimed at involving partners in the process of
sustainable innovation.
Originality/value: The paper presents a SME that has devised an original innovative business model. The study pivots on the
issues of innovation and eco-sustainability in a context of drivers for CRS and business ethics. These values are considered
fundamental at International level; the United Nations has declared 2011 the “International Year of Forestry”
The History and Practice of College Health
This volume is the first definitive reference and textbook in the one-hundred-fifty year history of college health. Written for professionals and for those working in student services and higher education administration, it covers the history of college health, administrative matters including financing and accreditation, and clinical issues such as women’s health, HIV/AIDS, and mental health. The book also focuses on prevention, including immunization and tuberculin testing. The contributors are well respected in the field and are actively working in the specific areas on which they write.
H. Spencer Turner, MD, is director of the University Health Service and clinical professor of preventative medicine and environmental health at the University of Kentucky.
Janet L. Hurley, Ph.D., is the Associate Director and Administrator of the University of Kentucky\u27s Health Service.https://uknowledge.uky.edu/upk_history_of_science_technology_and_medicine/1003/thumbnail.jp
Malaysian bilateral trade relations and economic growth
This paper examines the structure and trends of Malaysian bilateral exports and imports and then investigates
whether these bilateral exports and imports have caused Malaysian economic growth. Although the structure of
Malaysia’s trade has changed quite significantly over the last three decades, the direction of Malaysia’s trade
remains generally the same. Broadly, ASEAN, the EU, East Asia, the US and Japan continue to be the
Malaysia’s major trading partners. The Granger causality tests have shown that it is the bilateral imports that
have caused economic growth in Malaysia rather than the bilateral exports
Exchange rate misalignments in ASEAN-5 countries
The purpose of this paper is to estimate the exchange rate misalignments for Indonesia, Malaysia, Philippines,
Singapore and Thailand before the currency crisis. By employing the sticky-price monetary exchange rate model
in the environment of vector error-correction, the results indicate that the Indonesia rupiah, Malaysian ringgit,
Philippines peso and Singapore dollar were overvalued before the currency crisis while Thai baht was
undervalued on the eve of the crisis. However, they suffered modest misalignment. Therefore, little evidence of
exchange misalignment is found to exist in 1997:2. In particular, Indonesia rupiah, Malaysia ringgit, Philippines
peso and Singapore dollar were only overvalued about 1 to 4 percent against US dollar while the Thai baht was
only 2 percent undervalued against US dollar
Front-Line Physicians' Satisfaction with Information Systems in Hospitals
Day-to-day operations management in hospital units is difficult due to continuously varying situations, several actors involved and a vast number of information systems in use. The aim of this study was to describe front-line physicians' satisfaction with existing information systems needed to support the day-to-day operations management in hospitals. A cross-sectional survey was used and data chosen with stratified random sampling were collected in nine hospitals. Data were analyzed with descriptive and inferential statistical methods. The response rate was 65 % (n = 111). The physicians reported that information systems support their decision making to some extent, but they do not improve access to information nor are they tailored for physicians. The respondents also reported that they need to use several information systems to support decision making and that they would prefer one information system to access important information. Improved information access would better support physicians' decision making and has the potential to improve the quality of decisions and speed up the decision making process.Peer reviewe
System of National Accounts 2008
Materiale di consultazione per approfondimenti metodologic