Artificial Intelligence (AI) offers organizations unprecedented opportunities. However, one of the risks of using AI is that its outcomes and inner workings are not intelligible. In industries where trust is critical, such as healthcare and finance, explainable AI (XAI) is a necessity. However, the implementation of XAI is not straightforward, as it requires addressing both technical and social aspects. Previous studies on XAI primarily focused on either technical or social aspects and lacked a practical perspective. This study aims to empirically examine the XAI related aspects faced by developers, users, and managers of AI systems during the development process of the AI system. To this end, a multiple case study was conducted in two Dutch financial services companies using four use cases. Our findings reveal a wide range of aspects that must be considered during XAI implementation, which we grouped and integrated into a conceptual model. This model helps practitioners to make informed decisions when developing XAI. We argue that the diversity of aspects to consider necessitates an XAI “by design” approach, especially in high-risk use cases in industries where the stakes are high such as finance, public services, and healthcare. As such, the conceptual model offers a taxonomy for method engineering of XAI related methods, techniques, and tools.
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A software system is described that uses the agent concept in the Cell Control layer. Important design goals are: the system continues as good as possible after a process crash, crashed processes are recreated whenever possible, and equivalent workstations are allocated dynamically. This project is carried out mainly to investigate whether the agent concept is applicable in such a situation. The system is not operational yet, but will be built in the period ahead. In addition, a graphic simulator for a small manufacturing system will be built for testing the agent structure.
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Aligning IT and business needs is still one of the most important concerns for senior management. The message of Business and IT Alignment (BIA) is logical and undisputed, but implementation is apparently difficult. Luftman and Kempaiah [11] conclude that business and IT alignment needs a tool that can provide an assessment of an organization’s level of alignment and a roadmap on how to improve alignment. A broadly used framework for assessing business and IT alignment maturity is Luftman’s Strategic Alignment Maturity (SAM) model [10]. The paper presents a survey study into the perceived contribution of the different variables and sub-variables of the SAM model. We found that the perceived contribution of the variables are not equally spread and suggest a modification of the model
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Met onderzoekspartners Ruben Vrijhoef (HU), Erlijn Eweg (HU), Raymond Stijkel (BAM), Arnold Homan (Inbo), Bas Slager (Repurpose). Uit de Inleiding: "In september 2015 heeft Hogeschool Utrecht een project aanvraag ingediend bij NRPO SIA, genaamd Circulaire gebouw installaties, samen met de partners BAM, Inbo en Repurpose. De insteek van het onderzoek was dat de gebouwinstallaties van het onderwijsgebouw aan de Padualaan 99 en 101 onderzocht werden op de mogelijkheid voor circulair hergebruik, met de partner bij de grootschalige renovatie van deze twee HU gebouwen. Op 23 februari ontvingen we de toekenning van NRPO SIA. Het oorspronkelijke project was gepland om eind oktober, begin november 2015 te starten. Door de toekenning later dan wij verwacht hadden, moesten we echter opnieuw met de projectpartners in overleg. In het project was uitgegaan van een bepaald onderzoeksobject, een gebouw. Het in het projectvoorstel omschreven onderzoeksobject was inmiddels al gestript en gesloopt (januari 2016). Daardoor is er in onderling overleg, besloten tot de volgende inhoudelijke projectwijzigingen: 1) De keuze voor een ander onderzoeksobject. 2) Het uitgangspunt wordt omgebogen naar de toepassing van multifunctionele bouwdelen, waarin de installaties al verwerkt zijn. De in het oorspronkelijke projectplan genoemde resultaten blijven in hoofdlijnen ongewijzigd, maar de resultaten op detailniveau worden iets anders ingevuld en uitgewerkt. De aanloop van dit project laat direct één van de kritische succes factoren zien bij een circulaire economie in de praktijk. En dat is de afstemming van vraag en aanbod van bouwmaterialen en producten binnen de keten. Als we materialen uit sloop en renovatiepanden elders willen hergebruiken en de timing van sloop of bouw wordt vertraagd, hapert het proces. Bij dit KIEM-VANG project ging het precies andersom: de sloop/renovatie van het beoogde onderzoekspand was al gebeurd op het moment dat de aanvraag werd goedgekeurd."
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Introduction: Strenuous physical stress induces a range of physiological responses, the extent depending, among others, on the nature and severity of the exercise, a person’s training level and overall physical resilience. This principle can also be used in an experimental set-up by measuring time-dependent changes in biomarkers for physiological processes. In a previous report, we described the effects of workload delivered on a bicycle ergometer on intestinal functionality. As a follow-up, we here describe an analysis of the kinetics of various other biomarkers. Aim: To analyse the time-dependent changes of 34 markers for different metabolic and immunological processes, comparing four different exercise protocols and a rest protocol. Methods: After determining individual maximum workloads, 15 healthy male participants (20–35 years) started with a rest protocol and subsequently performed (in a cross-over design with 1-week wash-out) four exercise protocols of 1-h duration at different intensities: 70% Wmax in a hydrated and a mildly dehydrated state, 50% Wmax and intermittent 85/55% Wmax in blocks of 2 min. Perceived exertion was monitored using the Borg’ Rating of Perceived Exertion scale. Blood samples were collected both before and during exercise, and at various timepoints up to 24 h afterward. Data was analyzed using a multilevel mixed linear model with multiple test correction. Results: Kinetic changes of various biomarkers were exercise-intensity-dependent. Biomarkers included parameters indicative of metabolic activity (e.g., creatinine, bicarbonate), immunological and hematological functionality (e.g., leukocytes, hemoglobin) and intestinal physiology (citrulline, intestinal fatty acid-binding protein, and zonulin). In general, responses to high intensity exercise of 70% Wmax and intermittent exercise i.e., 55/85% Wmax were more pronounced compared to exercise at 50% Wmax. Conclusion: High (70 and 55/85% Wmax) and moderate (50% Wmax) intensity exercise in a bicycle ergometer test produce different time-dependent changes in a broad range of parameters indicative of metabolic activity, immunological and hematological functionality and intestinal physiology. These parameters may be considered biomarkers of homeostatic resilience. Mild dehydration intensifies these time-related changes. Moderate intensity exercise of 50% Wmax shows sufficient physiological and immunological responses and can be employed to test the health condition of less fit individuals.
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Plant photosynthesis and biomass production are associated with the amount of intercepted light, especially the light distribution inside the canopy. Three virtual canopies (n = 80, 3.25 plants/m2) were constructed based on average leaf size of the digitized plant structures: ‘small leaf’ (98.1 cm2), ‘medium leaf’ (163.0 cm2) and ‘big leaf’ (241.6 cm2). The ratios of diffuse light were set in three gradients (27.8%, 48.7%, 89.6%). The simulations of light interception were conducted under different ratios of diffuse light, before and after the normalization of incident radiation. With 226.1% more diffuse light, the result of light interception could increase by 34.4%. However, the 56.8% of reduced radiation caused by the increased proportion of diffuse light inhibited the advantage of diffuse light in terms of a 26.8% reduction in light interception. The big-leaf canopy had more mutual shading effects, but its larger leaf area intercepted 56.2% more light than the small-leaf canopy under the same light conditions. The small-leaf canopy showed higher efficiency in light penetration and higher light interception per unit of leaf area. The study implied the 3D structural model, an effective tool for quantitative analysis of the interaction between light and plant canopy structure.
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Reading and writing is modelled in CSP using actions containing the symbols ? and !. These reading actions and writing actions are synchronous, and there is a one-to-one relationship between occurrences of pairs of these actions. In the CPA conference 2017, we introduced the extended half-synchronous al- phabetised parallel operator X ⇕ Y , which disconnects the writing to and reading from a channel in time; the reading processes are divided into sets which are set-wise asynchronous, but intra-set-wise synchronous, giving full flexibility to the reads. In this paper, we allow multiple writers to write to the same channel set-wise asynchronously, but intra-set-wise synchronously and we study the impact on our (Extended) Vertex Removing Synchronised Product. The advantages we accomplish are that the extension of X ⇕ Y gives more flexibility by indexing the writing actions and the reading actions, leading to a straightforward majority vote design. Furthermore, the extension of X ⇕ Y preserves the advantages of the X ⇕ Y operator.
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De afgelopen maanden is de Hongaarse overheid druk bezig geweest met bezoekjes aan Brussel om de Europese Commissie te overtuigen van de puike staat van de rechtsstaat in Hongarije. Reden voor deze bezoeken van de Hongaarse regering is het voorstel van de Europese Commissie om het uitkeren van EU-fondsen aan een lidstaat te blokkeren. Eurocommissaris Hahn stelt dat Hongarije mogelijk zo’n €7,5 miljard aan EU-fondsen misloopt als het niet snel 17 afgesproken hervormingen doorvoert die de rechtsstaat waarborgen. Het zou gaan om 65% van de voor Hongarije beschikbare middelen van de cohesiefondsen.
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One major drawback of deception detection is its vulnerability to countermeasures, whereby participants wilfully modulate their physiological or neurophysiological response to critical guilt-determining stimuli. One reason for this vulnerability is that stimuli are usually presented slowly. This allows enough time to consciously apply countermeasures, once the role of stimuli is determined. However, by increasing presentation speed, stimuli can be placed on the fringe of awareness, rendering it hard to perceive those that have not been previously identified, hindering the possibility to employ countermeasures. We tested an identity deception detector by presenting first names in Rapid Serial Visual Presentation and instructing participants to lie about their own identity. We also instructed participants to apply a series of countermeasures. The method proved resilient, remaining effective at detecting deception under all countermeasures.
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