Search results for "IMPLEMENTATION"

Local Expected Shortfall-Hedging

2001

This paper proposes a self-financing trading strategy that minimizes the expected shortfall locally when hedging a European contingent claim. A positive shortfall occurs if the hedger is not willing to follow a perfect hedging or a superhedging strategy. In contrast to the classical variance criterion, the expected shortfall criterion depends only on undesirable outcomes where the terminal value of the written option exceeds the terminal value of the hedge portfolio. Searching a strategy which minimizes the expected shortfall is equivalent to the iterative solution of linear programs whose number increases exponentially with respect to the number of trading dates. Therefore, we partition th…

Parallel Collision Queries on the GPU

2013

We present parallel algorithms to accelerate collision tests of rigid body objects for a high number of independent transformations as they occur in sampling-based motion planning and path validation problems. We compare various GPU approaches with a different level of parallelism against each other and against a parallel CPU implementation. Our algorithms require no sophisticated load balancing schemes. They make no assumption on the distribution of the input transformations and require no pre-processing. Yet, we can perform up to 1 million collision tests per second with our best GPU implementation in our benchmarks. This is about 2.5X faster than our reference multi-core CPU implementati…

Consensus in Noncooperative Dynamic Games: a Multi-Retailer Inventory Application

2008

We focus on Nash equilibria and Pareto optimal Nash equilibria for a finite horizon noncooperative dynamic game with a special structure of the stage cost. We study the existence of these solutions by proving that the game is a potential game. For the single-stage version of the game, we characterize the aforementioned solutions and derive a consensus protocol that makes the players converge to the unique Pareto optimal Nash equilibrium. Such an equilibrium guarantees the interests of the players and is also social optimal in the set of Nash equilibria. For the multistage version of the game, we present an algorithm that converges to Nash equilibria, unfortunately, not necessarily Pareto op…

Spatial joins

2019

The spatial join is a popular operation in spatial database systems and its evaluation is a well-studied problem. This paper reviews research and recent trends on spatial join evaluation. The complexity of different data types, the consideration of different join predicates, the use of modern commodity hardware, and support for parallel processing open the road to a number of interesting directions for future research, some of which we outline in the paper.

EXPERIMENTAL EVALUATION OF THE ACCURACY OF RFID BASED LOCALIZATION SYSTEMS FOR INDUSTRIAL WAREHOUSES

2009

Sobre el «marc de condicions sociolingüístiques favorables» per a la implantació de la normativa lingüística

2016

Resum: Aquest treball pretén desplegar conceptualment la unitat lèxica marc de condicions sociolingüístiques favorables proposada per F. X. Vila, M. Nogué i I. Vila a fi que sigui acadèmicament operativa per analitzar quins són els factors que afavoririen la implantació de la normativa. Per fer-ho partirem, entre altres, d’una concepció àmplia de la «sociolingüística catalana» i de treballs nostres. A partir d’aquesta concepció, analitzarem quins factors podrien afavorir la implantació de la normativa. I ho farem seguint les fases que normalment segueix la implantació de les normes: codificació (incloent-hi la selecció), difusió, i implantació o no implantació. Dins de cada una de les fases…

Why Benefits Realization from ERP in SMEs Doesn't Seem to Matter?

2011

Author's version of a chapter in Proceedings of the 44th Hawaii International Conference on System Sciences. Also available from the publisher: http://dx.doi.org/10.1109/HICSS.2011.497 It is often argued that IT investments require active management practices for benefits realization. This applies also to enterprise resource planning (ERP) systems. As well, benefits realization efforts are assumed to create more value than they cost. Hence, the maturity of organizations should be increased and their cultures cultivated towards more rational benefits realization practices. Our study on ERP implementations in Egyptian medium-sized organizations, however, provides aberrant results that challen…

VALUTAZIONE DELLE PERFORMANCE E ATTIVITÀ DI INDIRIZZO, MONITORAGGIO E CONTROLLO SULLA PROGRAMMAZIONE PUBBLICA REGIONALE DEI FONDI STRUTTURALI. APPROC…

2014

La programmazione pubblica regionale attraversa un momento di forte criticità interna legata al soggetto attuatore regionale, caratterizzata da una lentissima attuazione dei programmi operativi cofinanziati dalla Commissione Europea. In risposta alle emergenze economiche e sociali, l’amministrazione regionale necessita di strumenti in grado di comunicare efficacemente azioni e risultati che possono positivamente influenzare la vita sociale e civile della comunità regionale. In particolare, gli operatori economici e, in generale, tutti i portatori di interesse, basano i propri atteggiamenti e le proprie scelte sulle aspettative delle dinamiche attese nei settori economici e sociali in cui op…

THE ADVANTAGES AND DISADVANTAGES OF INCLUSIVE EDUCATION FROM THE PERSPECTIVE OF FUTURE TEACHERS

2021

In Latvia, inclusive education is relevant as seen in the past several decades, during which time society has developed a more comprehensive understanding of and made significant progress towards implementing inclusive education. Nevertheless, there is still a gap between the priorities of education policy and reality in educational institutions. The quality of education accorded to students is informed by the knowledge, understanding and experience of teachers in the implementation of concepts of inclusive education. The current study aimed at identifying the visions of prospective teachers (already working in schools) concerning inclusive education. To explore the experiences of future te…

Digitalisation of municipal healthcare collaboration with volunteers: a case study applying normalization process theory

2021

Abstract Background Increasing use of volunteers in healthcare requires structured collaboration between healthcare services and volunteers. The aim of this research was to explore critical issues and strategies in the implementation process of a digital solution for collaboration with and coordination of volunteers in municipal healthcare services. Methods Qualitative data collection was used to study implementation of a digital system for collaboration with volunteers in three Norwegian municipalities. Three rounds of interviews were conducted with healthcare employees from a volunteer centre and from municipality healthcare units in three municipalities: before implementation, and 6 and …