cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mask and Reason: Pre-Training Knowledge Graph Transformers for Complex Logical Queries
Creators: name: Liu, Xiao
name: Zhao, Shiyu
name: Su, Kai
name: Cen, Yukuo
name: Qiu, Jiezhong
name: Zhang, Mengdi
name: Wu, Wei
name: Dong, Yuxiao
name: Tang, Jie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Knowledge graph (KG) embeddings have been a mainstream approach for reasoning over incomplete KGs. However, limited by their inherently shallow and static architectures, they can hardly deal with the rising focus on complex logical queries, which comprise logical operators, imputed edges, multiple source entities, and unknown intermediate entities. In this work, we present the Knowledge Graph Transformer (kgTransformer) with masked pre-training and fine-tuning strategies. We design a KG triple transformation method to enable Transformer to handle KGs, which is further strengthened by the Mixture-of-Experts (MoE) sparse activation. We then formulate the complex logical queries as masked prediction and introduce a two-stage masked pre-training strategy to improve transferability and generalizability. Extensive experiments on two benchmarks demonstrate that kgTransformer can consistently outperform both KG embedding-based baselines and advanced encoders on nine in-domain and out-of-domain reasoning tasks. Additionally, kgTransformer can reason with explainability via providing the full reasoning paths to interpret given answers.
description: kgTransformer; Accepted to KDD 2022
Editorial: Nachhaltigkeits-Audits mit Auszubildenden - Einblicke in den Modellversuch NAUZUBI
Creators: name: Pittich, Daniel
Publisher: name: Journal of Technical Education (JOTED)
Year: 2018

description: NAUZUBI ist das Akronym für einen BMBF / BIBB-Modellversuch mit dem Titel „Nachhaltigkeits-Audits mit Auszubildenden - Ein lernortkooperativer Modellversuch für eine nachhaltige Berufsausbildung“, der von 2015 - 2019 vom BMBF im BIBB-Programm „Berufsbildung für nachhaltige Entwicklung“ gefördert wird. In einem Konsortium aus zwei Universitäten, fünf Betrieben, drei berufsbildenden Schulen in Hessen und Nordrhein-Westfalen sowie dem DGB und der IHK-NRW werden zentral Nachhaltigkeits-Audits mit Auszubildenden in den Betrieben entwickelt und erprobt. Übergreifendes Ziel des Modellvorhabens ist, 1) die teilnehmenden Betriebe als nachhaltige Lernorte aufzustellen, also (Ausbildungs-)Strukturen zu schaffen, die lernhaltige Zugänge auf Nachhaltigkeitsthemen gewährleisten und 2) ausbildungsbezogene Audits im Thema „Nachhaltigkeit“ zu konzipieren und umzusetzen. Schlüsselwörter: Nachhaltigkeit, Beruflicher Bildung für nachhaltige Entwicklung (BBNE), Audit, berufliche Ausbildung
description: Journal of Technical Education (JOTED), Bd. 6 Nr. 3 (2018): Journal of Technical Education (JOTED)
Evaluating the Benefits: Quantifying the Effects of TCP Options, QUIC, and CDNs on Throughput
Creators: name: Bauer, Simon
name: Sattler, Patrick
name: Zirngibl, Johannes
name: Schwarzenberg, Christoph
name: Carle, Georg
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: To keep up with increasing demands on quality of experience, assessing and understanding the performance of network connections is crucial for web service providers. While different measures, like TCP options, alternative transport layer protocols like QUIC, or the hosting of services in CDNs, are expected to improve connection performance, no studies are quantifying such impacts on connections on the Internet. This paper introduces an active Internet measurement approach to assess the impacts of mentioned measures on connection performance. We conduct downloads from public web servers considering different vantage points, extract performance indicators like throughput, RTT, and retransmission rate, and survey speed-ups due to TCP option usage. Further, we compare the performance of QUIC-based downloads to TCP-based downloads considering different option configurations. Next to significant throughput improvements due to TCP option usage, in particular TCP window scaling, and QUIC, our study shows significantly increased performance for connections to domains hosted by different giant CDNs.
description: Presented at the ACM/IRTF Applied Networking Research Workshop 2023 (ANRW23)
Optomechanical measurement of a millimeter-sized mechanical oscillator near the quantum limit
Creators: name: Santos, J. T.
name: Li, J.
name: Ilves, J.
name: Ockeloen-Korppi, C. F.
name: Sillanpaa, M. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Cavity optomechanics is a tool to study the interaction between light and micromechanical motion. Here we observe near-quantum limited optomechanical physics in a truly macroscopic oscillator. As the mechanical system, we use a mm-sized piezoelectric quartz disk oscillator. Its motion is coupled to a charge qubit which translates the piezo-induced charge into an effective radiation-pressure interaction between the disk and a microwave cavity. We measure the thermal motion of the lowest mechanical shear mode at 7MHz down to 35 mK, corresponding to roughly 100 quanta in a 20mg oscillator. The work opens up opportunities for macroscopic quantum experiments.
description: 5 pages
Testing of loss models and a synthetic unit hydrograph procedure on an irrigated catchment
Creators: name: Erlanger, Peter D.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Editorial: Sustainability-Audits with Trainees - Insights into the pilot project NAUZUBI
Creators: name: Pittich, Daniel
Publisher: name: Journal of Technical Education (JOTED)
Year: 2018

description: NAUZUBI is the acronym for a pilot project initiated by the German Federal Institute for Vocational Training (BIBB) with the title “Nachhaltigkeits-Audits mit Auszubildenden - Ein lernortkooperativer Modellversuch für eine nachhaltige Berufsausbildung“ (engl.: Sustainability-Audits with Trainees - A pilot project for Sustainable Vocational Training) which is funded by the Federal Ministry For Education and Research from 2015 - 2019 within the BIBB programme “Vocational Education and Training for Sustainable Development“. A consortium of two universities, five companies, three vocational schools in Hesse and North Rhine-Westphalia (NRW), the German Federation of Trade Unions and the Chamber of Industry and Commerce in NRW and participating trainees develop sustainability audits and test them in practise. The over-all objective of the pilot project is to 1) transform the participating companies into sustainable learning environments with educational training structures which offer access to sustainability topics ensuring learn effectiveness and 2) design and implement audits in the context of sustainability which are education and training related. Keywords: Sustainability, Vocational education and training for sustainable development (BBNE), Audit, vocational training
description: Journal of Technical Education (JOTED), Bd. 6 Nr. 3 (2018): Journal of Technical Education (JOTED)
Multi-wavelength study of the star-formation in the S237 H II region
Creators: name: Dewangan, L. K.
name: Ojha, D. K.
name: Zinchenko, I.
name: Janardhan, P.
name: Luna, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed multi-wavelength study of observations from X-ray, near-infrared to centimeter wavelengths to probe the star formation processes in the S237 region. Multi-wavelength images trace an almost sphere-like shell morphology of the region, which is filled with the 0.5--2 keV X-ray emission. The region contains two distinct environments - a bell-shaped cavity-like structure containing the peak of 1.4 GHz emission at center, and elongated filamentary features without any radio detection at edges of the sphere-like shell - where {\it Herschel} clumps are detected. Using the 1.4 GHz continuum and $^{12}$CO line data, the S237 region is found to be excited by a radio spectral type of B0.5V star and is associated with an expanding H{\sc ii} region. The photoionized gas appears to be responsible for the origin of the bell-shaped structure. The majority of molecular gas is distributed toward a massive {\it Herschel} clump (M$_{clump}$ $\sim$260 M$_{\odot}$), which contains the filamentary features and has a noticeable velocity gradient. The photometric analysis traces the clusters of young stellar objects (YSOs) mainly toward the bell-shaped structure and the filamentary features. Considering the lower dynamical age of the H\,{\sc ii} region (i.e. 0.2-0.8 Myr), these clusters are unlikely to be formed by the expansion of the H\,{\sc ii} region. Our results also show the existence of a cluster of YSOs and a massive clump at the intersection of filamentary features, indicating that the collisions of these features may have triggered cluster formation, similar to those found in Serpens South region.
description: 21 pages, 14 figures, 1 table, Accepted for publication in The Astrophysical Journal
Indirect X-ray photodesorption of 15N2 and 13CO from mixed and layered ices
Creators: name: Basalgète, R.
name: Torres-Díaz, D.
name: Lafosse, A.
name: Amiaud, L.
name: Féraud, G.
name: Jeseck, P.
name: Philippe, L.
name: Michaut, X.
name: Fillion, J-H.
name: Bertin, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: X-ray photodesorption yields of $^{15}$N$_2$ and $^{13}$CO are derived as a function of the incident photon energy near the N ($\sim$400 eV) and O K-edge ($\sim$500 eV) for pure $^{15}$N$_2$ ice and mixed $^{13}$CO:$^{15}$N$_2$ ices. The photodesorption spectra from the mixed ices reveal an indirect desorption mechanism for which the desorption of $^{15}$N$_2$ and $^{13}$CO is triggered by the photo-absorption of respectively $^{13}$CO and $^{15}$N$_2$. This mechanism is confirmed by the X-ray photodesorption of $^{13}$CO from a layered $^{13}$CO/$^{15}$N$_2$ ice irradiated at 401 eV, on the N 1s$\rightarrow π^*$ transition of $^{15}$N$_2$. This latter experiment enables to quantify the relevant depth involved in the indirect desorption process, which is found to be 30 - 40 ML in that case. This value is further related to the energy transport of Auger electrons emitted from the photo-absorbing $^{15}$N$_2$ molecules that scatter towards the ice surface, inducing the desorption of $^{13}$CO. The photodesorption yields corrected from the energy that can participate to the desorption process (expressed in molecules desorbed by eV deposited) do not depend on the photon energy hence neither on the photo-absorbing molecule nor on its state after Auger decay. This demonstrates that X-ray induced electron stimulated desorption (XESD), mediated by Auger scattering, is the dominant process explaining the desorption of $^{15}$N$_2$ and $^{13}$CO from the ices studied in this work.
Call for Papers: Insurance Industry
Creators: name: Carvalho, João Vinícius de França
name: Flores, Eduardo
name: Valdez, Emiliano A.
Publisher: name: Zenodo
Year: 2020
Subjects: insurance
actuary
call for papers
Journal of Contemporary Administration
special issue
business

description: IMPORTANT DEADLINES
 Submission of Full Paper: November 30th, 2020.
 Review Process Ends: until March 31st, 2021.
 Special Issue publication (expected): until May, 2021. Actuarial science has risk as its primary object of study. There are risks from any source or nature. A person faces the risk of becoming ill or getting injured, limiting his/her capacity to generate income or losing his/her properties and assets. A person faces the risk of premature death, leaving behind a grieving family who may be financially dependent. Companies, in turn, deal with the possibility of losing their operational capacity because of unforeseen events. There is the additional possibility of damages caused to third parties not directly linked to the action. Insurance contracts are financial instruments for asset protection against risks with possibly low probability of occurrence but bring severe losses, leaving those affect with damages that may lead to financial ruin. The insurance industry and risk managers interact with different fields of expertise: Finance, Economics, Accounting, Probability, Statistics, Computer Science among others.
Das Modell der Didaktischen Rekonstruktion im inklusiven Fachunterricht - eine Pilotstudie in der (Fach-)Didaktik Bautechnik
Creators: name: Keimes, Christina
name: Rexing, Volker
Publisher: name: Journal of Technical Education (JOTED)
Year: 2018

description: Im Kontext einer inklusiven Fachdidaktik bedarf es der Ermittlung individueller Lernbarrieren, um daraus Ansatzpunkte für eine individuelle Förderung gewinnen zu können. Relevant erscheint hierbei insbesondere die Frage nach bearbeitungsbedürftigen Fehlkonzepten, deren Kenntnis für die Gestaltung von Lehr- und Lernprozessen bedeutsam ist. Berichtet wird nachfolgend über eine Pilotstudie zum Modell der Didaktischen Rekonstruktion, in der Schülervorstellungen zu einem exemplarisch ausgewählten Lerngegenstand im Berufsfeld Bautechnik erhoben wurden. Im Rahmen des Modells werden fachwissenschaftliche Erkenntnisse und schülerseitige Vorstellungen so miteinander in Beziehung gesetzt, dass auf Basis eines wechselseitigen Vergleichs (individuelle) Lernangebote und Lernwege fachdidaktisch rekonstruiert werden können. Dieser Zugang hat sich bereits in den naturwissenschaftlichen Fachdidaktiken als Forschungsparadigma etabliert und wird dort als theoretischer und methodischer Rahmen sowohl für die Unterrichtsplanung als auch für die fachdidaktische Lehr-Lernforschung verwendet. Im Rahmen dieses Beitrags wird das Potenzial des Modells im Hinblick auf die Idee einer inklusiven (Fach-)Didaktik der beruflichen Fachrichtung Bautechnik reflektiert. Schlüsselwörter: Berufsbildung, Modell der Didaktischen Rekonstruktion, inklusive Fachdidaktik, Schülervorstellungen, Berufsfeld Bautechnik
description: Journal of Technical Education (JOTED), Bd. 6 Nr. 3 (2018): Journal of Technical Education (JOTED)
Lern- und Studienerfolg: Ein Vergleich von nichttraditionell und traditionell Studierenden in ingenieurwissenschaftlichen Studiengängen
Creators: name: Jürgens, Alexandra
Publisher: name: Journal of Technical Education (JOTED)
Year: 2018

description: Die vorliegende Arbeit beschäftigt sich mit der Frage, ob Unterschiede im Lern- und Studien-erfolg zwischen traditionell Studierenden in einem grundständigen Bachelorstudiengang einer staatlichen Hochschule für angewandte Wissenschaften und berufsbegleitend (nichttraditionell) Studierenden in einem gleichartigen Präsenzstudienangebot bestehen. Nach der Einordnung der Themenrelevanz wird zunächst der Forschungsstand zu den Determinanten des Lern- und Studienerfolgs zusammengefasst. Im Hauptteil des vorliegenden Beitrages werden ausgewählte Befunde einer Untersuchung im Vergleichsgruppendesign zum Vorwissen, zu den Lernstrategien und zum Studienerfolg von traditionell und nichttraditionell Studierenden berichtet. Abschließend werden die Ergebnisse der Studie diskutiert und offene Forschungsfragen gestellt. Schlüsselwörter: Lern- und Studienerfolg, nichttraditionell und traditionell Studierende, berufsbegleitend Studierende
description: Journal of Technical Education (JOTED), Bd. 6 Nr. 3 (2018): Journal of Technical Education (JOTED)
An alternative to the conventional "Keep left" tram safety zone (Clayton zones)
Creators: name: Morgan, Robert .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
CorpusBrain: Pre-train a Generative Retrieval Model for Knowledge-Intensive Language Tasks
Creators: name: Chen, Jiangui
name: Zhang, Ruqing
name: Guo, Jiafeng
name: Liu, Yiqun
name: Fan, Yixing
name: Cheng, Xueqi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Knowledge-intensive language tasks (KILT) usually require a large body of information to provide correct answers. A popular paradigm to solve this problem is to combine a search system with a machine reader, where the former retrieves supporting evidences and the latter examines them to produce answers. Recently, the reader component has witnessed significant advances with the help of large-scale pre-trained generative models. Meanwhile most existing solutions in the search component rely on the traditional ``index-retrieve-then-rank'' pipeline, which suffers from large memory footprint and difficulty in end-to-end optimization. Inspired by recent efforts in constructing model-based IR models, we propose to replace the traditional multi-step search pipeline with a novel single-step generative model, which can dramatically simplify the search process and be optimized in an end-to-end manner. We show that a strong generative retrieval model can be learned with a set of adequately designed pre-training tasks, and be adopted to improve a variety of downstream KILT tasks with further fine-tuning. We name the pre-trained generative retrieval model as CorpusBrain as all information about the corpus is encoded in its parameters without the need of constructing additional index. Empirical results show that CorpusBrain can significantly outperform strong baselines for the retrieval task on the KILT benchmark and establish new state-of-the-art downstream performances. We also show that CorpusBrain works well under zero- and low-resource settings.
description: Accepted by CIKM 2022
Spontaneous natural optical activity in disordered media
Creators: name: Pinheiro, F. A.
name: Fedotov, V. A.
name: Papasimakis, N.
name: Zheludev, N. I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate natural optical activity in disordered ensembles of non-chiral plasmonic resonators. We show that the statistical distributions of rotatory power and spatial dichroism are strongly dependent on the scattering mean free path in diffusive random media. This result is explained in terms of the intrinsic geometric chirality of disordered media, as they lack mirror symmetry. We argue that chirality and natural optical activity of disordered systems can be quantified by the standard deviation of both rotatory power and spatial dichroism. Our results are based on microscopic electromagnetic wave transport theory coupled to vectorial Green's matrix method for pointlike scatterers, and are independently confirmed by full-wave simulations.
description: 5 pages, 5 figures
Axisymmetric Solutions to Einstein Field Equations via Integral Transforms
Creators: name: Batic, D.
name: Debru, N. B.
name: Nowakowski, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we present new axisymmetric and reflection symmetric vacuum solutions to the Einstein field equations. They are obtained using the Hankel integral transform method and all three solutions exhibit naked singularities. Our results further reinforce the importance and special character of axisymmetric solutions in general relativity and highlight the role of integral transforms methods in solving complex problems in this field. We compare our results to already existing solutions which exhibit the same type of singularities. In this context we notice that most known axial-symmetric solutions possess naked singularities. A discussion of characteristic features of the newly found metrics, e.g., blueshift and the geometry of the singularities, is given.
description: 20 pages, 6 figures
Approximated Doubly Robust Search Relevance Estimation
Creators: name: Zou, Lixin
name: Hao, Changying
name: Cai, Hengyi
name: Cheng, Suqi
name: Wang, Shuaiqiang
name: Ye, Wenwen
name: Cheng, Zhicong
name: Gu, Simiu
name: Yin, Dawei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Extracting query-document relevance from the sparse, biased clickthrough log is among the most fundamental tasks in the web search system. Prior art mainly learns a relevance judgment model with semantic features of the query and document and ignores directly counterfactual relevance evaluation from the clicking log. Though the learned semantic matching models can provide relevance signals for tail queries as long as the semantic feature is available. However, such a paradigm lacks the capability to introspectively adjust the biased relevance estimation whenever it conflicts with massive implicit user feedback. The counterfactual evaluation methods, on the contrary, ensure unbiased relevance estimation with sufficient click information. However, they suffer from the sparse or even missing clicks caused by the long-tailed query distribution. In this paper, we propose to unify the counterfactual evaluating and learning approaches for unbiased relevance estimation on search queries with various popularities. Specifically, we theoretically develop a doubly robust estimator with low bias and variance, which intentionally combines the benefits of existing relevance evaluating and learning approaches. We further instantiate the proposed unbiased relevance estimation framework in Baidu search, with comprehensive practical solutions designed regarding the data pipeline for click behavior tracking and online relevance estimation with an approximated deep neural network. Finally, we present extensive empirical evaluations to verify the effectiveness of our proposed framework, finding that it is robust in practice and manages to improve online ranking performance substantially.
description: 10 pages
An overview of some mathematical techniques and problems linking 3D vision to 3D printing
Creators: name: Cristiani, Emiliano
name: Falcone, Maurizio
name: Tozza, Silvia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Computer Vision and 3D printing have rapidly evolved in the last 10 years but interactions among them have been very limited so far, despite the fact that they share several mathematical techniques. We try to fill the gap presenting an overview of some techniques for Shape-from-Shading problems as well as for 3D printing with an emphasis on the approaches based on nonlinear partial differential equations and optimization. We also sketch possible couplings to complete the process of object manufacturing starting from one or more images of the object and ending with its final 3D print. We will give some practical examples of this procedure.
Masterstudiengang mit integriertem Vorbereitungsdienst in der Metall- und Elektrotechnik - Berufliche Lehrerbildung phasenübergreifend gestalten
Creators: name: Riedl, Alfred
name: Kronsfoth, Katharina
name: Gentner, Reinhardt
name: Häußler, Janina
name: Gruber, Maria
Publisher: name: Journal of Technical Education (JOTED)
Year: 2018

description: Der innovative Masterstudiengang „Berufliche Bildung Integriert“ verbindet die erste und zweite Phase der Lehrerbildung erstmalig konsequent auf Programmebene. Das dreijährige Ausbildungskonzept führt einen Masterstudiengang und einen zweijährigen Vorbereitungsdienst zusammen. Durch die intensive Abstimmung zwischen Universität und Staatlichem Studienseminar sowie die gemeinsam getragene Verantwortung für die Professionalisierung von Lehrkräften ist ein neuer Weg in die Lehrerbildung an beruflichen Schulen implementiert worden. Dieser generiert hohe Synergieeffekte und ist aus qualitativer Sicht zukunftsweisend für die Professionalisierung von Lehrkräften. Das Konzept eröffnet zudem einer bisher nicht hinreichend adressierten Zielgruppe in den Mangelfächern Metalltechnik sowie Elektro- und Informationstechnik den Zugang zum Lehramt an beruflichen Schulen. Schlüsselwörter: Master Integriert, Berufliches Lehramt, Zweites Staatsexamen, Studienseminar, Vorbereitungsdienst _________ Innovative Master’s Programme for Engineering Sciences: Vocational Teacher Education linking teaching theory and practice The innovative Master’s programme ‘Integrated Vocational Education’ links teaching theory and practice, which usually take place sequentially, for the very first time within a structured teacher training course. The three-year training concept dovetails a theoretical Master’s degree course with a two year teacher practice course. Intensive coordination between universities and the responsible government institutions (Staatliches Studienseminar), both entities having a joint responsibility for the professional standards to be attained by trainee teachers, has resulted in a new approach being formulated and initiated for the training of teachers at vocational schools. This pioneering approach generates high synergy effects and important future benefits regarding professional standards in vocational teacher training. Moreover, this new and compact Master’s programme addresses the shortage of teachers in two fields, metal technology and electrical engineering & information technology, by directly offering fast track access to a career as a teacher at a vocational school for those people who already hold a BA in Engineering Sciences. Keywords: Master ‘Integrated Vocational Education’, Vocational Teacher Education, teacher practice course, teacher training, Engineering Sciences
description: Journal of Technical Education (JOTED), Bd. 6 Nr. 2 (2018): Journal of Technical Education (JOTED) - Sonderausgabe
Reliability of strain-hardening structures
Creators: name: Cheong, Chan Kay.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Addressing the Scalability Bottleneck of Semantic Technologies at Bosch
Creators: name: Rincon-Yanez, Diego
name: Gad-Elrab, Mohamed H.
name: Stepanova, Daria
name: Tran, Kien Trung
name: Xuan, Cuong Chu
name: Zhou, Baifan
name: Karlamov, Evgeny
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: At the heart of smart manufacturing is real-time semi-automatic decision-making. Such decisions are vital for optimizing production lines, e.g., reducing resource consumption, improving the quality of discrete manufacturing operations, and optimizing the actual products, e.g., optimizing the sampling rate for measuring product dimensions during production. Such decision-making relies on massive industrial data thus posing a real-time processing bottleneck.
FALSE: Fake News Automatic and Lightweight Solution
Creators: name: Mukhaini, Fatema Al
name: Abdoulie, Shaikhah Al
name: Kharuosi, Aisha Al
name: Ahmad, Amal El
name: Aldwairi, Monther
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Fake news existed ever since there was news, from rumors to printed media then radio and television. Recently, the information age, with its communications and Internet breakthroughs, exacerbated the spread of fake news. Additionally, aside from e-Commerce, the current Internet economy is dependent on advertisements, views and clicks, which prompted many developers to bait the end users to click links or ads. Consequently, the wild spread of fake news through social media networks has impacted real world issues from elections to 5G adoption and the handling of the Covid- 19 pandemic. Efforts to detect and thwart fake news has been there since the advent of fake news, from fact checkers to artificial intelligence-based detectors. Solutions are still evolving as more sophisticated techniques are employed by fake news propagators. In this paper, R code have been used to study and visualize a modern fake news dataset. We use clustering, classification, correlation and various plots to analyze and present the data. The experiments show high efficiency of classifiers in telling apart real from fake news.
Empirical Study of DSRC Performance Based on Safety Pilot Model Deployment Data
Creators: name: Huang, Xianan
name: Zhao, Ding
name: Peng, Huei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Dedicated Short Range Communication (DSRC) was designed to provide reliable wireless communication for intelligent transportation system applications. Sharing information among cars and between cars and the infrastructure, pedestrians, or "the cloud" has great potential to improve safety, mobility and fuel economy. DSRC is being considered by the US Department of Transportation to be required for ground vehicles. In the past, their performance has been assessed thoroughly in the labs and limited field testing, but not on a large fleet. In this paper, we present the analysis of DSRC performance using data from the world's largest connected vehicle test program - Safety Pilot Model Deployment lead by the University of Michigan. We first investigate their maximum and effective range, and then study the effect of environmental factors, such as trees/foliage, weather, buildings, vehicle travel direction, and road elevation. The results can be used to guide future DSRC equipment placement and installation, and can be used to develop DSRC communication models for numerical simulations.
Quantum circuits and low-degree polynomials over F_2
Creators: name: Montanaro, Ashley
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we explore a correspondence between quantum circuits and low-degree polynomials over the finite field F_2. Any quantum circuit made up of Hadamard, Z, controlled-Z and controlled-controlled-Z gates gives rise to a degree-3 polynomial over F_2 such that calculating quantum circuit amplitudes is equivalent to counting zeroes of the corresponding polynomial. We exploit this connection, which is especially clean and simple for this particular gate set, in two directions. First, we give proofs of classical hardness results based on quantum circuit concepts. Second, we find efficient classical simulation algorithms for certain classes of quantum circuits based on efficient algorithms for classes of polynomials.
description: 16 pages, 4 figures
Instrument for the assessment of road user automated vehicle acceptance: A pyramid of user needs of automated vehicles
Creators: name: Nordhoff, Sina
name: Hagenzieker, Marjan
name: Lehtonen, Esko
name: Oehl, Michael
name: Wilbrink, Marc
name: Ozturk, Ibrahim
name: Maggi, David
name: Métayer, Natacha
name: Merlhiot, Gaëtan
name: Merat, Natasha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: This study proposed a new methodological approach for the assessment of automated vehicle acceptance (AVA) from the perspective of road users inside and outside of AVs pre- and post- AV experience. Users can be drivers and passengers, but also external road users, such as pedestrians, (motor-)cyclists, and other car drivers, interacting with AVs. A pyramid was developed, which provides a hierarchical representation of user needs. Fundamental user needs are organized at the bottom of the pyramid, while higher-level user needs are at the top of the pyramid. The pyramid distinguishes between six levels of needs, which are safety trust, efficiency, comfort and pleasure, social influence, and well-being. Some user needs universally exist across users, while some are user-specific needs. These needs are translated into operationalizable indicators representing items of a questionnaire for the assessment of AVA of users inside and outside AVs. The formulation of the questionnaire items was derived from established technology acceptance models. As the instrument was based on the same model for all road users, the comparison of AVA between different road users is now possible. We recommend future research to validate this questionnaire, administering it in studies to contribute to the development of a short, efficient, and standardized metric for the assessment of AVA.
description: 17 pages, 1 figure
Studiengang Bachelor Ingenieurpädagogik - Kooperation der Hochschule Landshut mit der Technischen Universität München zur Nachwuchskräftesicherung
Creators: name: Dollinger, Silvia
name: Riedl, Alfred
Publisher: name: Journal of Technical Education (JOTED)
Year: 2018

description: Die Hochschule Landshut und die Technische Universität München kooperieren in der Lehrerbildung an beruflichen Schulen in den beruflichen Fachrichtungen Elektro- und Informationstechnik sowie Metalltechnik. Nach dem Bachelorstudium Ingenieurpädagogik in Landshut kann, durch eine Kooperationsvereinbarung geregelt, unmittelbar das Masterstudium Berufliche Bildung an der TU München aufgenommen werden. Seit dem Studienstart zum Wintersemester 2015/16 hat sich der Studiengang mittlerweile konsolidiert. Die Entwicklung der Studierendenzahlen ist bisher sehr positiv. Der Beitrag greift aktuelle Fragestellungen einer beruflichen Lehrerbildung auf und zeigt im Kontext des vorgestellten Kooperationsmodells mögliche Herausforderungen, die sich aus dem Implementationsprozess ergeben. Schlüsselwörter: Ingenieurpädagogik, Lehramt an beruflichen Schulen, Metalltechnik, Elektro- und Informationstechnik, Kooperation ____________ Bachelor of Engineering - A cooperation of the University of Applied Sciences Landshut with the Technical University of Munich for the recruitment of junior staff for Vocational School As for teacher training programmes for prospective teachers at vocational schools, Hochschule Landshut (Landshut University of Applied Sciences) and Technische Universität München (Technical University of Munich) cooperate in the subjects Electrical and Information Engineering as well as Metalworking. A cooperation agreement ensures that holders of a Bachelor’s degree (B.â€‰Eng.) in Engineering Pedagogy who studied in Landshut are allowed to subsequently start the Master’s programme in Vocational Education at the Technical University. In the two years since winter term 2015/16, the study programme has become well established and student enrolments have constantly increased up to a very satisfactory level. The present essay addresses current issues in the training of vocational school teachers. Furthermore, it will analyse the aforementioned collaboration for potential challenges in the implementation process of such a cooperation model. Keywords: engineering education, vocational schools, teacher education, metal technology, electrical engineering and information technology
description: Journal of Technical Education (JOTED), Bd. 6 Nr. 2 (2018): Journal of Technical Education (JOTED) - Sonderausgabe
Temperature and Density Structure of a Recurring Active Region Jet
Creators: name: Mulay, Sargam M.
name: Del Zanna, Giulio
name: Mason, Helen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a study of a recurring jet observed on October 31, 2011 by SDO/AIA, Hinode/XRT and Hinode/EIS. We discuss the physical parameters of the jet such as density, differential emission measure, peak temperature, velocity and filling factor obtained using imaging and spectroscopic observations. A differential emission measure (DEM) analysis was performed at the region of the jet-spire and the footpoint using EIS observations and also by combining AIA and XRT observations. The DEM curves were used to create synthetic spectra with the CHIANTI atomic database. The plasma along the line-of-sight in the jet-spire and jet-footpoint was found to be peak at 2.0 MK. We calculated electron densities using the Fe XII ($λ$186/$λ$195) line ratio in the region of the spire (Ne = 7.6x$10^{10}$ $cm^{-3}$) and the footpoint (1.1x$10^{11}$ $cm^{-3}$). The plane-of-sky velocity of the jet is found to be 524 km/s. The resulting EIS DEM values are in good agreement with those obtained from AIA-XRT. There is no indication of high temperatures, such as emission from Fe XVII ($λ$254.87) (log T [K] = 6.75) seen in the jet-spire. In case of the jet-footpoint, synthetic spectra predict weak contributions from Ca XVII ($λ$192.85) and Fe XVII ($λ$254.87). With further investigation, we confirmed emission from the Fe XVIII ($λ$93.932) line in the AIA 94 $Å$ channel in the region of the footpoint. We also found good agreement between the estimated and predicted Fe XVIII count rates. A study of the temporal evolution of the jet-footpoint and the presence of high-temperature emission from the Fe XVIII (log T [K] = 6.85) line leads us to conclude that the hot component in the jet-footpoint was present initially that the jet had cooled down by the time EIS observed it.
description: 20 pages, 23 figures, Accepted for publication in Astronomy and Astrophysics
Hybrid Weyl Semimetal
Creators: name: Li, Fei-Ye
name: Luo, Xi
name: Dai, Xi
name: Yu, Yue
name: Zhang, Fan
name: Chen, Gang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We construct a tight-binding model realizing one pair of Weyl nodes and three distinct Weyl semimetals. In the type-I (type-II) Weyl semimetal, both nodes belong to type-I (type-II) Weyl nodes. In addition, there exists a novel type, dubbed "hybrid Weyl semimetal", in which one Weyl node is of type-I while the other is of type-II. For the hybrid Weyl semimetal, we further demonstrate the bulk Fermi surfaces and the topologically protected surface states, analyze the unique Landau level structure and quantum oscillation, and discuss the material realization.
description: 5 pages, 5 figures
Leveraging beam deformation to improve the detection of resonances
Creators: name: Pollès, Rémi
name: Mihailovic, Martine
name: Centeno, Emmanuel
name: Moreau, Antoine
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Decades of work on beam deformation on reflection, and especially on lateral shifts, have spread the idea that a reflected beam is larger than the incident beam. However, when the right conditions are met, a beam reflected by a multilayered resonant structure can be 10\% narrower than the incoming beam. Such an easily measurable change occurs on a very narrow angular range close to a resonance, which can be leveraged to improve the resolution of sensors based on the detection of surface plasmon resonances by a factor three. We provide theoretical tools to deal with this effect, and a thorough physical discussion that leads to expect similar phenomenon to occur for temporal wavepackets and in other domains of physics.
A study of the distribution of road accidents by road hierarchy, Australian Capital Territory, 1981
Creators: name: Goonewardene, Dhammithalal W.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Secure system based on UAV and BLE for improving SAR missions
Creators: name: Lodeiro-Santiago, Moisés
name: Santos-Gonzalez, Ivan
name: Caballero-Gil, Pino
name: Caballero-Gil, Candido
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This work describes an integrated solution to face a civil security problem in the area of Search And Rescue (SAR) of missing people. This proposal is based on the use of emerging technologies such as Unmanned Aerial Vehicles (UAV), also known as drones, and the use of simulated beacons on smartphones. In particular, in the presented tool, drones fly synchronously in a specific area so that each drone uses on-board sensors to scan and detect any signal emitted by Bluetooth Low Energy (BLE) beacons from smartphones of missing people. This technique allows getting the GPS position of any detected missing person. This work also includes some security issues related to possible attacks focused on the perimeter and physical security.
Using blockchain in the follow-up of emergency situations related to events
Creators: name: Rivero-García, Alexandra
name: Santos-González, Iván
name: Hernández-Goya, Candelaria
name: Caballero-Gil, Pino
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper describes a decentralized low-cost system designed to reinforce personal security in big events in case of emergency. The proposal consists of using smart contracts supported by blockchain in the management of events. An alternative communication channel that does not require any cloud service is also provided with the aim of improving the coordination of emergency services. Peers may use this emergency support tool to interact with each other through a chat when additional support is required. Since information security is mandatory in this scenario, Identity-Based Signcryption schemes are here used in order to guarantee communication confidentiality, authenticity and integrity. Depending on the communication mode (peer-to-peer or broadcast), different signcryption methods are used. A first implementation of the proposal has produced promising results.
Zwischen Ingenieurstudium und Lehramtsoption - Wann und warum entscheiden sich Studierende für den „PLan C“?
Creators: name: Gillen, Julia
name: Wasserschleger, Anna
name: Wehking, Katharina
name: Beinke, Kristina
Publisher: name: Journal of Technical Education (JOTED)
Year: 2018

description: Da die Gewinnung von qualifizierten sowie geeigneten Lehrkräften für den gewerblich-technischen Bereich der berufsbildenden Schulen ein dauerhaftes Problem darstellt, wird in dem Beitrag der Frage nachgegangen, welche Gründe der Rekrutierungsproblematik zu Grunde liegen. Dafür werden Ergebnisse aus dem Projekt „PLan C“ vorgestellt, die das Potential der ingenieurwissenschaftlichen Studierenden, als potentielle Zielgruppe für die Rekrutierung lehramtsinteressierter Personen untersucht. Es zeigt sich, dass sich innerhalb der anvisierten Zielgruppe lehramtsinteressierte Studierende befinden, die einen inhaltlich begründeten Wechsel vom Ingenieursstudium in das berufsbildende Lehramt vollzogen haben, jedoch handelt es sich hierbei nur um eine geringe Anzahl. Schlüsselwörter: Gewerblich-Technisches Lehramt, Rekrutierungsproblematik, Zielgruppen im Lehramt, Lehrkräftemangel, Studiengangswechsel ___________ Between the engineering major and becoming a teacher: When and why do students choose PLan C? Since the acquisition of qualified and capable teachers for the commercial- technical subjects of vocational schooling remains an enduring problem, this contribution inquires into the reasons that lie at the foundation of the recruitment problem. To this end, results from the project “PLan C“ are presented, the aim of which is to examine the potential in targeting engineering students for recruitment as vocational educators. It is apparent that within this target group there are students interested in pursuing vocational teacher education who have made a justified shift from an engineering degree to one in vocational education, yet the number of such students remains relatively low. Keywords: commercial- technical teacher education, recruitment problem, target groups in teacher education, teacher shortage, degree change
description: Journal of Technical Education (JOTED), Bd. 6 Nr. 2 (2018): Journal of Technical Education (JOTED) - Sonderausgabe
Vorbildung, Studienmotivation und Gründe eines Studienabbruchs von Studierenden im Lehramt an berufsbildenden Schulen
Creators: name: Wyrwal, Matthias
name: Zinn, Bernd
Publisher: name: Journal of Technical Education (JOTED)
Year: 2018

description: Die vorliegende Untersuchung liefert ein systematisch begründetes Beschreibungswissen zu (1.) den soziodemografischen Merkmalen, (2.) der beruflichen und akademischen Vorbildung, (3.) dem Erstkontakt und der Studienmotivation von Lehramtsstudierenden in den Fachrichtungen Bau-, Elektro-, Maschinenbautechnik und Informatik, die zu Beginn ihres Studiums mit quantitativen und qualitativen Methoden befragt wurden. Die Ergebnisse zeichnen ein vielschichtiges Bild zu den soziodemografischen und motivationalen Ausgangslagen der Lehramtsstudierenden. In einer weiteren qualitativen Studie mit Studierenden, die das berufsschulische Lehramtsstudium abgebrochen bzw. den Studiengang gewechselt haben, werden (4.) zentrale Gründe für einen Studienabbruch dargestellt. Schlüsselwörter: Lehramtsstudium, gewerblich-technisch, Studienabbruch, Studienmotivation, Vorbildung ____________ Educational background, motivation to study and reasons for a study discontinuation of teacher training students for vocational training schools This study provides a methodical reasoned description knowledge for (1) the sociodemographic characteristics, (2) the professional and academic educational background, (3) the initial contact and motivation to study of teacher training students in the fields of construction engineering, electrical engineering, mechanical engineering and computer science, which have been surveyed with quantitative and qualitative methods at the beginning of their studies. The results present a many-layered picture of the sociodemographic and motivational starting positions of teacher training students. In a further qualitative study of students, which have discontinued their teacher training for vocational training schools or which have changed their course of study, (4) key reasons for the discontinuation of study are provided. Keywords: Teacher training, industrial-technical, discontinuation of study, motivation to study, educational background
description: Journal of Technical Education (JOTED), Bd. 6 Nr. 2 (2018): Journal of Technical Education (JOTED) - Sonderausgabe