High Performance Organization (HPO) characteristics indicate why an organization is able to achieve significantly better results than other organizations and these characteristics can facilitate associations to optimize employees’ work outcomes. The independent professional (IP) is an increasingly occurring phenomenon in the labor market that fulfils an organizations’ need for flexibility in knowledge productivity. This study focuses on the contribution of HPO characteristics to the knowledge productivity of IP's. It was conducted among managers and HRM professionals in various Dutch knowledge-intensive organizations that frequently enlist the services of IPs. This study found a number of HPO attributes that appeared to contribute to the IPs' knowledge productivity, namely the quality of management, an open and actionfocused organizational culture, and continual improvement and innovation. We will use these results to look ahead and consider the future consequences for professional practice. Managers and HRM professionals should strive to contribute to the incorporation of these characteristics within the organization in order to safeguard and enhance knowledge productivity of independent professionals.
DOCUMENT
Estimating the remaining useful life (RUL) of an asset lies at the heart of prognostics and health management (PHM) of many operations-critical industries such as aviation. Mod- ern methods of RUL estimation adopt techniques from deep learning (DL). However, most of these contemporary tech- niques deliver only single-point estimates for the RUL without reporting on the confidence of the prediction. This practice usually provides overly confident predictions that can have severe consequences in operational disruptions or even safety. To address this issue, we propose a technique for uncertainty quantification (UQ) based on Bayesian deep learning (BDL). The hyperparameters of the framework are tuned using a novel bi-objective Bayesian optimization method with objectives the predictive performance and predictive uncertainty. The method also integrates the data pre-processing steps into the hyperparameter optimization (HPO) stage, models the RUL as a Weibull distribution, and returns the survival curves of the monitored assets to allow informed decision-making. We vali- date this method on the widely used C-MAPSS dataset against a single-objective HPO baseline that aggregates the two ob- jectives through the harmonic mean (HM). We demonstrate the existence of trade-offs between the predictive performance and the predictive uncertainty and observe that the bi-objective HPO returns a larger number of hyperparameter configurations compared to the single-objective baseline. Furthermore, we see that with the proposed approach, it is possible to configure models for RUL estimation that exhibit better or comparable performance to the single-objective baseline when validated on the test sets.
DOCUMENT
ICT is veel meer dan een hulpmiddel bij onderwijs en opleiding: zij provoceert een voortdurend nieuwe kijk op de essentie van leren en daarmee ook op het leraarschap. Opvallend is dat ICT in onderwijs penetreert nog voordat er enig model of theorievorming over haar bijdrage gevormd is; dat is pragmatisch en opportunistisch. Sterker nog: als we achteraf kijken naar hervormingen van onderwijsopvattingen, dan worden ze vaak aangedreven door technologische innovaties op dat moment: de entree van de boekdruk, telecommunicatie, computersystemen en virtuele realiteit. Binnenkort zullen we ingrijpende invloeden zien vanuit de biotechnologie, genetische modificatie, nanotechnologie etcetera. De huidige stap van laptop naar het veelkunnende mobieltje is er slechts één van de lange rij ICT-hulpmiddelen die er nog aan gaan komen. Als we de trend van ICT in onderwijs doortrekken, dan valt te verwachten dat 'mobiel leren' vooral zal leiden tot 'ubiquitous learning': overal- en voortdurend leren. Het begrip 'learning by heart' krijgt opnieuw betekenis: niet alleen het 'van buiten' leren, maar het opbouwen van een relatie met het onderwerp dat je bestudeert. De persoon van de docent wordt nog belangrijker dan hij nu al is. Mobiele communicatie gaat haar eerste vruchten afwerpen bij het 'voortdurend leren' van de docent. Het mobieltje en de on-line PDA gaan hierin een cruciale rol spelen. De Fontys lerarenopleidingen nemen met enthousiasme deze voortrekkersrol op zich. Het lectoraat Educatieve Functies van ICT begeleidt docenten en promovendi hierbij.
DOCUMENT
