169,758 research outputs found
Fairness and accountability of machine learning models in railway market: Are applicable railway laws up to regulate them?
No full textThis paper discusses whether the law is up to regulate machine learning (”ML”) model-based decision-making in the context of the railways. We especially deal with the fairness and accountability of these models when exploited in the context of train traffic management (”TTM”). Railway sector-specific regulation, in their quality as network industry, hereby serves as a pilot. We show that, even where technological solutions are available, the law needs to keep up to support and accurately regulate the use of the technological solutions and we identify stumble points in this regard
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Understanding the rule of prevalence in the NIS directive: C-ITS as a case study
No full textThe paper discusses the interpretation of the rule of prevalence of Article 1 (7) NIS Directive, which has not been the subject of any academic debate so far. Article 1 (7) NIS Directive organises the interface between the NIS Directive regime and other European Union sector-specific legislations imposing (cyber)security obligations, by laying down the conditions according to which such obligations would prevail over the NIS Directive regime. Based on the case study of the recent proposal from the European Commission to regulate Cooperative Intelligent Transport Systems (‘C-ITS’), the paper unravels a number of issues and unclarities. Recommendations are made with respect to the interpretation and application of the rule of prevalence of Article 1 (7) NIS Directive. In anticipation of a potential future C-ITS regulation and in the context of a possible upcoming revision of the NIS Directive, the paper also makes suggestions to ease the regulation of the interface between the NIS Directive and other (cyber-)security regulation, particularly in the field of C-ITS.sponsorship: INEA|INEA/CEF/TRAN/M2016/1364071status: Publishe
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
A 0.12mm<sup>2</sup> Wien-Bridge Temperature Sensor with 0.1°C (3σ) Inaccuracy from -40°C to 180°C
No full text Resistor-based temperature sensors can achieve much higher resolution and energy efficiency than conventional BJT-based sensors [1], but they typically occupy more area (> 0.25 mm 2 ) and have lower operating temperatures (le 125 {circ} {C}) [2]-[4]. This work describes a 0.12mm 2 resistor-based sensor that uses a Wien-bridge (WB) filter to achieve 0.1 {circ} {C} (3 sigma) inaccuracy from - 40 {circ} {C} to 180 {circ} {C}. Compared to a state-of-the-art WB sensor [4], it occupies 6 × less area and achieves comparable relative accuracy over a 76% wider operating range. Session 10.3 Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic InstrumentationMicroelectronic
On the edge of the NIS Directive: the proposed C-ITS Delegated Regulation, friend or foe?
No full textThe paper discusses the interpretation of the lex specialis rule of Article 1 (7) of the NIS Directive, which has deserved little scholarly attention so far. Article 1 (7) NIS Directive organises the interface between the NIS Directive regime and other European Union sector-specific legislations imposing (cyber)security obligations, by laying down the conditions according to which such obligations would prevail over the NIS Directive regime. To do so, the recent proposal from the European Commission to regulate Cooperative Intelligent Transport Systems (‘C-ITS’) serves as a practical case study. Even though the proposal was eventually turned down by the Council, the regulation of C-ITS remains top on the agenda of the European Commission. Its relevance for the present study also detracts from the fact that, while obviously dealing with (cyber)security, the Proposed C-ITS Regulation barely envisaged the interface with the NIS Directive.
The paper finds that the NIS Directive is unclear on a number of aspects related to its interface with other EU legal frameworks, and notably in the field of ITS. In anticipation of a potential future C-ITS regulation, the paper makes suggestions to smoothly regulate the interface with the NIS Directive and eventually bring legal certainty to the actors involved. Finally, recommendations are made with respect to the interpretation and application of the lex specialis rule of Article 1 (7) NIS Directive.status: Published onlin
A ±25A Versatile Shunt-Based Current Sensor with 10kHz Bandwidth and ±0.25% Gain Error from -40°C to 85°C Using 2-Current Calibration
No full textAccurate current sensing is critical in many industrial applications, such as battery management and motor control. Precise shunt-based current sensors have been reported with gain errors of less than 1% over the industrial temperature range (-40°C to 85°C) [1]–[4]. However, since they are intended for coulomb counting, their bandwidth is limited to a few tens of Hz, making them unsuitable for battery impedance or motor-current sensing. This paper presents a current sensor with a wide (10kHz) bandwidth and a tunable temperature compensation scheme (TCS), which allows it to be flexibly used with different types of shunts while maintaining high accuracy. A low-cost room-temperature calibration scheme is proposed to optimize gain flatness over temperature by exploiting the shunt's self-heating at large currents. Over the industrial temperature range and a ±25A current range, it achieves state-of-the-art gain error (±0.25%) with both low-cost PCB and stable metal-alloy shunts.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic InstrumentationMicroelectronic
Legal principles behind technical complexities: the proposal from the Commission for a C-ITS Delegated Regulation
No full textWhile already connected devices to some extent, road vehicles are expected to experience new forms of external communications, referred to as “C-ITS” (“cooperative intelligent transport system”). C-ITS communications would enable vehicles to exchange messages in a peer-to-peer fashion with one another and with other entities in their environment, such as the road infrastructure or even pedestrians. They are expected to increase road safety, traffic efficiency and driving comfort and to constitute a necessary building block towards safe automated driving. These benefits can, however, not be delivered without a coordinated, trustable and interoperable deployment, especially given their cooperative character (see the impact assessment of the Commission). This is the reason why the European Commission proposed a Delegated Regulation for a trusted and harmonized deployment of C-ITS services across the European Union. After a public consultation phase, it was transmitted in March 2019 to the European Parliament and to the Council. This blog post includes an overview of the proposed Delegated Regulation and will raise some questions regarding the application of the principle of technological neutrality in this context.status: Publishe
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