cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dual-induced multifractality in online viewing activity
Creators: name: Qin, Yu-Hao
name: Zhao, Zhi-Dan
name: Cai, Shi-Min
name: Gao, Liang
name: Stanley, H. Eugene
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Although recent studies have found that the long-term correlations relating to the fat-tailed distribution of inter-event times exist in human activity, and that these correlations indicate the presence of fractality, the property of fractality and its origin have not been analyzed. We use both DFA and MFDFA to analyze the time series in online viewing activity separating from Movielens and Netflix. We find long-term correlations at both the individual and communal level, and that the extent of correlation at the individual level is determined by the activity level. These long-term correlations also indicate that there is fractality in the pattern of online viewing. And, we firstly find a multifractality that results from the combined effect of the fat-tailed distribution of inter-event times (i.e., the times between successive viewing actions of individual) and the long-term correlations in online viewing activity and verify this finding using three synthesized series. Therefore, it can be concluded that the multifractality in online viewing activity is caused by both the fat-tailed distribution of inter-event times and the long-term correlations, and that this enlarges the generic property of human activity to include not just physical space, but also cyberspace.
description: 10 pages, 13 figures
title: Thermodynamically Consistent Phase-Field Models and Their Energy Law Preserving Finite Element Schemes for Two-Phase Flows and Their Interaction with Boundaries
titleType: Other
Creators: name: Shen, Lingyue
Publisher: name: University of Dundee
Year: 2022

description: Phase-field theory is a powerful method which is widely used in dealing with multiphase problem in fluid dynamics in recent years. In this thesis, models of moving contact lines and vesicle motion, deformation and interaction would be established with phase-field method. Energy variational approach is used to derive the governing equations from some basic energy assumption. C0 finite element scheme is given to perform numerical test. Continuous and discrete energy decaying law are also given to prove the feasibility of the model. Finally, numerical simulation is applied. A number of results in different conditions are shown. By comparing with experimental data from previous research, the models are proven to be with good accuracy.
title: An investigation into the issues of multi-agent data mining
Creators: name: Albashiri, KA
name: Coenen, F
name: Leng, P
Publisher: name: University of Liverpool Repository
Year: 2011

description: Multi-agent systems (MAS) often deal with complex applications that require distributedproblem solving. In many applications the individual and collective behaviourof the agents depends on the observed data from distributed sources. The field of DistributedData Mining (DDM) deals with these challenges in analyzing distributed dataand offers many algorithmic solutions to perform different data analysis and miningoperations in a fundamentally distributed manner that pays careful attention to the resourceconstraints. Since multi-agent systems are often distributed and agents haveproactive and reactive features, combining DM with MAS for data intensive applicationsis therefore appealing.This Chapter discusses a number of research issues concerned with the use ofMulti-Agent Systems for Data Mining (MADM), also known as agent-driven datamining. The Chapter also examines the issues affecting the design and implementationof a generic and extendible agent-based data mining framework. An ExtendibleMulti-Agent Data mining System (EMADS) Framework for integrating distributeddata sources is presented. This framework achieves high-availability and highperformance without compromising the data integrity and security. © 2010 Nova Science Publishers, Inc. All rights reserved.
Adjoint representations of black box groups ${\rm PSL}_2(\mathbb{F}_q)$
Creators: name: Borovik, Alexandre
name: Yalçınkaya, Şükrü
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Given a black box group $\mathsf{Y}$ encrypting $\rm{PSL}_2(\mathbb{F})$ over an unknown field $\mathbb{F}$ of unknown odd characteristic $p$ and a global exponent $E$ for $\mathsf{Y}$ (that is, an integer $E$ such that $\mathsf{y}^E=1$ for all $\mathsf{y} \in \mathsf{Y}$), we present a Las Vegas algorithm which constructs a unipotent element in $\mathsf{Y}$. The running time of our algorithm is polynomial in $\log E$. This answers the question posed by Babai and Beals in 1999. We also find the characteristic of the underlying field in time polynomial in $\log E$ and linear in $p$. Furthermore, we construct, in probabilistic time polynomial in $\log E$, 1. a black box group $\mathsf{X}$ encrypting $\rm{PGL}_2(\mathbb{F}) \cong\rm{SO}_3(\mathbb{F})$, its subgroup $\mathsf{Y}^\circ$ of index $2$ isomorphic to $\mathsf{Y}$ and a probabilistic polynomial in $\log E$ time isomorphism $\mathsf{Y}^\circ \longrightarrow \mathsf{Y}$; 2. a black box field $\mathsf{K}$, and 3. polynomial time, in $\log E$, isomorphisms \[ \rm{SO}_3(\mathsf{K}) \longrightarrow \mathsf{X} \longrightarrow \rm{SO}_3(\mathsf{K}). \] If, in addition, we know $p$ and the standard explicitly given finite field $\mathbb{F}$ isomorphic to $\mathbb{F}$ then we construct, in time polynomial in $\log E$, isomorphism \[ \rm{SO}_3(\mathbb{F})\longrightarrow \rm{SO}_3(\mathsf{K}). \] Unlike many papers on black box groups, our algorithms make no use of additional oracles other than the black box group operations. Moreover, our result acts as an $\rm{SL}_2$-oracle in the black box group theory. We implemented our algorithms in GAP and tested them for groups such as $\rm{PSL}_2(\mathbb{F})$ for $|\mathbb{F}|=115756986668303657898962467957$ (a prime number).
description: 41 pages
title: Heavy-tailed distribution in the presence of dependence in insurance and finance
Creators: name: Liu, Fei
Publisher: name: University of Liverpool Repository
Year: 2014

description: In the past decade, the study of the renewal risk model in the presence of dependent insurance and financial risks and heavy-tailed claims is one of the key topics in modern risk theory. The purpose of this thesis is to study the renewal risk model with certain dependence structures. We also assume that claim sizes follow a heavy-tailed distribution, in particular, a subexponential distribution. We focus on studying the impact of heavy tails and dependence structures on ruin probabilities and the tail probabilities of aggregate claims. For the study of dependence structure, we consider two assumptions here, namely, dependence between claims and inter-arrival times and dependence between insurance and financial risks, particular attention are paid for the dependent insurance and financial risks. In this case, an equation for the tail probability of maximal present value of aggregate net loss is derived, and hence some insights into the ruin probability can be obtained.
Fast-Decodable Space-Time Codes for the $N$-Relay and Multiple-Access MIMO Channel
Creators: name: Barreal, Amaro
name: Hollanti, Camilla
name: Markin, Nadya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: Number Theory (math.NT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this article, the first general constructions of fast-decodable, more specifically (conditionally) $g$-group decodable, space-time block codes for the Nonorthogonal Amplify and Forward (NAF) Multiple-Input Multiple-Output (MIMO) relay channel under the half-duplex constraint are proposed. In this scenario, the source and the intermediate relays used for data amplification are allowed to employ multiple antennas for data transmission and reception. The worst-case decoding complexity of the obtained codes is reduced by up to $75%$. In addition to being fast-decodable, the proposed codes achieve full-diversity and have nonvanishing determinants, which has been shown to be useful for achieving the optimal Diversity-Multiplexing Tradeoff (DMT) of the NAF channel. Further, it is shown that the same techniques as in the cooperative scenario can be utilized to achieve fast-decodability for $K$-user MIMO Multiple-Access Channel (MAC) space-time block codes. The resulting codes in addition exhibit the conditional nonvanishing determinant property which, for its part, has been shown to be useful for achieving the optimal MAC-DMT.
description: IEEE Transactions on Wireless Communications
Inflation with a constant rate of roll
Creators: name: Motohashi, Hayato
name: Starobinsky, Alexei A.
name: Yokoyama, Jun'ichi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider an inflationary scenario where the rate of inflaton roll defined by $\ddotϕ/H\dot ϕ$ remains constant. The rate of roll is small for slow-roll inflation, while a generic rate of roll leads to the interesting case of `constant-roll' inflation. We find a general exact solution for the inflaton potential required for such inflaton behaviour. In this model, due to non-slow evolution of background, the would-be decaying mode of linear scalar (curvature) perturbations may not be neglected. It can even grow for some values of the model parameter, while the other mode always remains constant. However, this always occurs for unstable solutions which are not attractors for the given potential. The most interesting particular cases of constant-roll inflation remaining viable with the most recent observational data are quadratic hilltop inflation (with cutoff) and natural inflation (with an additional negative cosmological constant). In these cases even-order slow-roll parameters approach non-negligible constants while the odd ones are asymptotically vanishing in the quasi-de Sitter regime.
description: 12 pages, 11 figures; v2. paper expanded, title changed; v3. three minor typos corrected
AR3B011_EARTHY_CourseBreif_6.4.pdf
Creators: name: Nourian, Pirouz
Publisher: name: figshare
Year: 2020
Subjects: subject: 120199 Architecture not elsewhere classified
subject: FOS: Civil engineering

description: EARTHY is a master’s level design studio with the aim of designing and engineering earthy buildings, in particular adobe buildings, intended for mid-term accommodation of displaced communities. Our goal is to design buildings that can be ideally built by their prospective inhabitants. Earthy buildings are virtually 100% recyclable and, compared to tents, they offer much more comfort. The use of earthen materials necessitates the knowledge of complex geometry e.g. in designing and technical drawing of vaults, domes and arches in optimal shapes. The focus of the course is on the relations of materials, shapes, and structures, explored computationally. Automated construction design and generation of assembly instructions are extra challenges to be tackled via computation. Read more about EARTHY here. See exemplary results of last year.
MPEC 2024-R286 : 2019 TL6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
On the role of initial velocities in pair dispersion in a microfluidic chaotic flow
Creators: name: Afik, Eldad
name: Steinberg, Victor
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Chaotic flows drive mixing and efficient transport in fluids, as well as the associated beautiful complex patterns familiar to us from our every day life experience. Generating such flows at small scales where viscosity takes over is highly challenging from both the theoretical and engineering perspectives. This can be overcome by introducing a minuscule amount of long flexible polymers, resulting in a chaotic flow dubbed \textit{elastic turbulence}. At the basis of the theoretical frameworks for its study lie the assumptions of a spatially smooth and random-in-time velocity field. Previous measurements of elastic turbulence have been limited to two-dimensions. Using a novel three-dimensional particle tracking method, we conduct a microfluidic experiment, allowing us to explore elastic turbulence from the perspective of particles moving with the flow. Our findings show that the smoothness assumption breaks already at scales smaller than a tenth of the system size. Moreover, we provide conclusive experimental evidence that \textit{ballistic} separation prevails in the dynamics of pairs of tracers over long times and distances, exhibiting a memory of the initial separation velocities. The ballistic dispersion is universal, yet it has been overlooked so far in the context of small scales chaotic flows.
description: 28 pages (Main Article: 17 pages ; Supplementary Information: 11 pages), 5 Main Figures, 6 Supplementary Figures, 3 Supplementary Notes, Supplementary References
title: Recombinant production and investigation of neurotransmitter channels and transporters
titleType: Other
Creators: name: Davis, Samuel
Publisher: name: University of Dundee
Year: 2022

description: Channels and transporters are essential proteins for the control, mediation and termination of neurotransmission. These are implicated in numerous pathological conditions, including epilepsy, Parkinson’s disease, neuropathic pain and nicotine addiction. However, the structural and ligand binding aspects of many of these channel and transporter proteins are poorly defined, which limits being able to design new molecules that can effectively target these conditions.

It was aimed to investigate structure and ligand binding at neurotransmitter channels and transporters. The first aims involved elucidating the binding modes and structure-activity relationships of novel ligands at nicotinic acetylcholine receptors (nAChRs), using the surrogate protein acetylcholine binding protein (AChBP). The ligands being characterised were of interest as potential anti-smoking agents and as research tools for studying nAChRs. Binding data and protein complex crystal structures were obtained for several of these novel ligands and it was possible to identify residues which were potentially responsible for their modes of action and affinity to AChBP, and henceforth likely to nAChRs. Knowledge of these interactions could assist in the future design of other ligands targeting nAChRs.

The second set of aims were associated with attempting to establish methodologies for the efficient recombinant production of complex eukaryotic ion channels and neurotransmitter sodium symporters. The initial objective was the insect ligand gated ion channel resistance to dieldrin (RDL), which is a target for insecticides. Sf9 insect cells proved unsuitable for production as only a small amount of the total protein could be extracted with non-ionic detergents and it was implied that the majority of the protein was likely in an un-folded state. Mammalian HEK293 cells were more successful as the protein could be efficiently solubilised, but ultimately the yields of purified protein were too low for this to be a feasible approach.

There was more success with producing the human GABA transporter 1 (GAT1). This terminates the actions of the inhibitory neurotransmitter GABA by removing it from the synapse and is a therapeutic target for the control of epilepsy. Using Sf9 cells and a conventional baculovirus system showed initial success, but there were ultimately problems with aggregation. Use of a recently described baculovirus system with an early Drosophila Hsp70 promoter however resolved these problems and led to high yields of purified GAT1. The obtained protein was suggested to be potentially suitable for future structural studies by single particle cryogenic electron microscopy (cryo-EM). Purified GAT1 was also used as a target to isolate recombinant nanobodies from a yeast library and these may be of assistance for increasing the size of the protein for cryo-EM studies.
title: A search for new physics in the γγ channel with the ATLAS experiment at sqrt(s) = 7 TeV
Creators: name: Waller, Peter
Publisher: name: University of Liverpool Repository
Year: 2014

description: In this thesis, the diphoton invariant mass distribution mγγ is measured using data collected with the ATLAS detector at the LHC during 2011. The inte- grated luminosity collected suitable for data analysis during this time was L = 4.9 fb^−1 ± 1.3%. The properties of the mγγ distribution are studied by observing the data in a control region 140 GeV 1 TeV for k/Mpl = 0.01 and mG > 2 TeV for k/Mpl = 0.1.
A Fock Sheaf For Givental Quantization
Creators: name: Coates, Tom
name: Iritani, Hiroshi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We give a global, intrinsic, and co-ordinate-free quantization formalism for Gromov-Witten invariants and their B-model counterparts, which simultaneously generalizes the quantization formalisms described by Witten, Givental, and Aganagic-Bouchard-Klemm. Descendant potentials live in a Fock sheaf, consisting of local functions on Givental's Lagrangian cone that satisfy the (3g-2)-jet condition of Eguchi-Xiong; they also satisfy a certain anomaly equation, which generalizes the Holomorphic Anomaly Equation of Bershadsky-Cecotti-Ooguri-Vafa. We interpret Givental's formula for the higher-genus potentials associated to a semisimple Frobenius manifold in this setting, showing that, in the semisimple case, there is a canonical global section of the Fock sheaf. This canonical section automatically has certain modularity properties. When X is a variety with semisimple quantum cohomology, a theorem of Teleman implies that the canonical section coincides with the geometric descendant potential defined by Gromov-Witten invariants of X. We use our formalism to prove a higher-genus version of Ruan's Crepant Transformation Conjecture for compact toric orbifolds. When combined with our earlier joint work with Jiang, this shows that the total descendant potential for compact toric orbifold X is a modular function for a certain group of autoequivalences of the derived category of X.
description: 123 pages, 5 figures v2: a commutative diagram in Theorem 5.14 was erroneously omitted and is restored v3: exposition improved based on referee's suggestions v4: Corollary 6.16 added
title: Comparative anatomy of the mammalian bony cochlea and its ontogenetic development in humans
Creators: name: Wannaprasert, Thanakul
Publisher: name: University of Liverpool Repository
Year: 2014

description: The cochlea is the organ for sound reception. Mammals place varied functional demands on their sense of hearing to meet the requirements of a broad range of ecological niches and diverse behaviours. However, documenting potentially related adaptations of the cochlea to eco-behavioural traits is difficult due to its complex geometry. The present study aims to determine whether the bony cochlea carries eco-behavioural traits that can be used to contextualize our understanding of the fossil record and evolutionary transitions. This study also includes work on ontogenetic changes since these can yield important insights into evolutionary processes resulting in differences of the adult phenotypes. Advanced techniques in micro-CT imaging, 3D image visualization, geometric morphometrics and statistical methods were used to study morphological variations of the bony cochlea across 45 adult eutherian species. Also, the same set of techniques was used to study 12 human fetal (approximately four to nine months of gestation) cochleae in comparison with five adult cochleae. Results revealed that there was a considerable range of variation in form of the mammalian bony cochlea. Potential links between the bony cochlear morphology and hearing, ecology and behaviour were found. Dimensions of the bony cochlea may be indicative of the eco-behavioural niche that a mammal occupies; e.g., fewer than two spiral turns is associated with obligate marine species. Rodents also showed remarkable variation in the cochlear morphology, more so than any other group of mammals studied, reflecting their diverse eco-behavioural traits. Results from the human developmental study showed that whilst the general coiled shape was achieved at the midgestational age, there was size related morphological change during the postnatal period. The round window size reached mature state prior to birth, by approximately the second trimester, whereas the oval window continued to change in size after birth. The postnatal enlargement may be determined by functional requirements of air-borne hearing, particularly with respect to frequency range and sensitivity.
Impact of displacement context on psychological distress in refugees resettled in Australia: a longitudinal population-based study
Creators: name: Nickerson, Angela
name: Kashyap, Shraddha
name: Keegan, David
name: Edwards, Ben
name: Forrest, Walter
name: Bryant, Richard A
name: O'Donnell, Meaghan
name: Felmingham, Kim
name: McFarlane, Alexander C
name: Tol, Wietse A.
name: Lenferink, Lonneke
name: Hoffman, Joel
name: Liddell, Belinda J.
Publisher: name: University of Limerick
Year: 2023
Subjects: Law and legal studies

description: Aims. Refugees typically spend years in a state of protracted displacement prior to permanent resettlement. Little is known about how various prior displacement contexts influence long-term mental health in resettled refugees. In this study, we aimed to determine whether having lived in refugee camps v. community settings prior to resettlement impacted the course of refugees’ psychological distress over the 4 years following arrival in Australia. Methods. Participants were 1887 refugees who had taken part in the Building a New Life in Australia study, which comprised of five annual face-to-face or telephone surveys from the year of first arrival in Australia. Results. Latent growth curve modelling revealed that refugees who had lived in camps showed greater initial psychological distress (as indexed by the K6) and faster decreases in psychological distress in the 4 years after resettling in Australia, compared to those who had lived in community settings. Investigation of refugee camp characteristics revealed that poorer access to services in camps was associated with greater initial distress after resettlement, and greater ability to meet one’s basic needs in camps was associated with faster decreases in psychological distress over time. Conclusions. These findings highlight the importance of the displacement context in influencing the course of post-resettlement mental health. Increasing available services and meeting basic needs in the displacement environment may promote better mental health outcomes inresettled refugees.
title: Analysis of routine hospital administrative data (including hospital episode statistics) to assess variation in process and outcomes in gastroenterology
Creators: name: Bowering, Katherine
Publisher: name: University of Liverpool Repository
Year: 2014

description: Background and Aims To explore outcomes following gastrointestinal endoscopy using a clinical dataset and then routinely collected administrative data linked to death registry data. Predictors of outcome were studied and variations in crude mortality were analysed. Methods Endoscopy cases from a single tertiary centre were identified retrospectively using a clinical endoscopy database. Sedation levels, type of procedure and demographic data were analysed. Adverse events following the procedures, including mortality were assessed before and after changes in sedation practice were introduced. For subsequent chapters national administrative data in the form of Hospital Episode Statistics (HES) were linked to the Office of National Statistics Death Registry. Data from 2006 – 2008 were analysed. Episodes of care containing codes for therapeutic endoscopic procedures were extracted (Endoscopic retrograde cholangio-pancreatography (ERCP) and percutaneous endoscopic gastrostomy (PEG)). Finally, episodes of care containing new stroke diagnoses were extracted to analyse the use of percutaneous gastrostomies in the stroke population in England. Factors associated with death following endoscopy were identified. Crude and case-mix adjusted mortality were analysed at institutional level. Results 7,234 endoscopy cases were identified from the endoscopy clinical database. Following changes in sedation practice 7,071 cases were assessed. Significant reductions in sedation doses were achieved but mortality rates did not fall (0.7% in 2004 and 0.8% in 2006 (p=0.5)). 40,938 episodes of care containing ERCP procedures were identified within the HES data. Logistic regression analysis confirmed age, sex, cancer, emergency admission, and non-cancer co-morbidity as independent predictors of 30-day death after ERCP. Adjusted odds ratios for age were 6.2 for ≥85 yrs vs.
Scheduling of offshore wind farm installation using simulated annealing
Creators: name: Peng, Shengrui
name: Rippel, Daniel
name: Becker, Matthias
name: Szczerbicka, Helena
Publisher: name: Frankfurt ; München [u.a.] : Elsevier
Year: 2021
Subjects: subject: Offshore wind farm
subject: Scheduling
subject: Simulated annealing
subject: Timed petri nets
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik

description: This paper focuses on the scheduling problem in the offshore wind farm installation process, which is strongly influenced by the offshore weather condition. Due to the nature of the offshore weather condition, i.e., partially predictable and uncontrollable, it is urgent to find a way to schedule the offshore installation process effectively and economically. For this purpose, this work presents a model based on Timed Petri Nets (TPN) approach for the offshore installation process and applies simulated annealing algorithm to find the optimal schedule.
Few-photon transport in many-body photonic systems: A scattering approach
Creators: name: Lee, Changhyoup
name: Noh, Changsuk
name: Schetakis, Nikolaos
name: Angelakis, Dimitris G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the quantum transport of multi-photon Fock states in one-dimensional Bose-Hubbard lattices implemented in QED cavity arrays (QCAs). We propose an optical scheme to probe the underlying many-body states of the system by analyzing the properties of the transmitted light using scattering theory. To this end, we employ the Lippmann-Schwinger formalism within which an analytical form of the scattering matrix can be found. The latter is evaluated explicitly for the two particle/photon-two site case using which we study the resonance properties of two-photon scattering, as well as the scattering probabilities and the second-order intensity correlations of the transmitted light. The results indicate that the underlying structure of the many-body states of the model in question can be directly inferred from the physical properties of the transported photons in its QCA realization. We find that a fully-resonant two-photon scattering scenario allows a faithful characterization of the underlying many-body states, unlike in the coherent driving scenario usually employed in quantum Master equation treatments. The effects of losses in the cavities, as well as the incoming photons' pulse shapes and initial correlations are studied and analyzed. Our method is general and can be applied to probe the structure of any many-body bosonic models amenable to a QCA implementation including the Jaynes-Cummings-Hubbard, the extended Bose-Hubbard as well as a whole range of spin models.
description: 15 pages, 9 figures
Neural OCR Post-Hoc Correction of Historical Corpora
Creators: name: Lyu, Lijun
name: Koutraki, Maria
name: Krickl, Martin
name: Fetahu, Besnik
Publisher: name: [Erscheinungsort nicht ermittelbar] : Association for Computational Linguistics
Year: 2021
Subjects: subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik
subject: Dewey Decimal Classification::400 | Sprache, Linguistik

description: Optical character recognition (OCR) is crucial for a deeper access to historical collections. OCR needs to account for orthographic variations, typefaces, or language evolution (i.e., new letters, word spellings), as the main source of character, word, or word segmentation transcription errors. For digital corpora of historical prints, the errors are further exacerbated due to low scan quality and lack of language standardization. For the task of OCR post-hoc correction, we propose a neural approach based on a combination of recurrent (RNN) and deep convolutional network (ConvNet) to correct OCR transcription errors. At character level we flexibly capture errors, and decode the corrected output based on a novel attention mechanism. Accounting for the input and output similarity, we propose a new loss function that rewards the model’s correcting behavior. Evaluation on a historical book corpus in German language shows that our models are robust in capturing diverse OCR transcription errors and reduce the word error rate of 32.3% by more than 89%.
title: VATA:  An Improved Personal Computer-Based Vowel Articulation Training Aid
Creators: name: Zimmer, Andrew Matthew
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2002

description: This thesis discusses work accomplished on the further development of a vowel articulation training aid for persons with hearing impairments. The system produces visual feedback about the quality of articulation for ten American English monophthong vowel phonemes. A large database of vowel recordings has been collected and used to improve and test the recognition rates of artificial neural networks used by the training aid. A maximum-likelihood classifier has been introduced into the system to improve performance by reducing the likelihood of incorrect feedback produced by the displays. A series of experiments has been performed to examine effects of tuning parameters, and of varying the amount and type of speech data used to train the system. Much of the program code for the speech display system has been revised to use a more modular structure, which in turn provides for easier maintenance and testing. Current system features and operational details are discussed in an appendix.
title: Complex hyperbolic triangle groups
Creators: name: Monaghan, Andrew
Publisher: name: University of Liverpool Repository
Year: 2014

description: In this thesis we study the discreteness criteria for complex hyperbolic triangle groups, generated by reflections in the complex hyperbolic 2-space. A complex hyperbolic triangle group is a group of isometries of the complex hyperbolic plane generated by three complex reflections. We study discreteness of some of these groups using arithmetic and geometric methods. We show that certain complex hyperbolic triangle groups of signature (p,p,2p) and (p,q,pq/(q-p)) are not discrete. The arithmetic methods we use are those studied by Conway and Jones and Parker. We also extend these results further. We finally give an area of discreteness for complex hyperbolic triangle groups of signature [m,n,0] using the compression property.
title: Post-traumatic growth following a burn injury
Creators: name: Baillie, Sarah
Publisher: name: University of Liverpool Repository
Year: 2014

description: Post-traumatic growth (PTG) is the experience of positive changes as a result of a traumatic event, where well-being and personal functioning exceed that of pre-trauma levels (Tedeschi, Park, & Calhoun, 1998). The occurrence of PTG following a variety of traumas has been examined, and a number of meta-analyses and reviews have attempted to summarise such literature and determine what facilitates PTG (e.g. Linley & Joseph, 2004). Some of these seek to establish whether there are differences in the experience of PTG dependent on the cause of the trauma (e.g. Bostock, Sheikh, & Barton, 2009). It has been suggested that the character of PTG following a serious accident may be different to that following physical illness, for example, with physical illness being experienced as an internal trauma and an accident as an external trauma (Hefferon, Grealy, & Mutrie, 2009). There are no reviews which explore the literature around PTG following a serious accident. Paper one of this thesis is a systematic review of the quantitative literature which aims to investigate the experience of PTG following serious accidents. A burn injury can be a traumatic event and can be challenging to recover from, both physically and psychologically (Blakeney, Rosenberg, Rosenberg, & Faber, 2008). Although the psychological impact of burn injuries is undisputed (Wisely, Hoyle, Tarrier, & Edwards, 2007), little attention has been paid to the benefits of such traumas (Fauerbach, Pruzinsky, & Saxe, 2007). Several qualitative studies exploring individuals’ experiences of a burn injury refer to positive changes which can accompany distress and trauma; however, only one quantitative study has directly explored the concept of PTG post-burn (Rosenbach & Renneberg, 2008). Paper two of this thesis is an empirical paper which aims to build on this, using quantitative methods to explore the concept of PTG following a burn injury.
Women as Leaders: Chances and Risks of the COVID-19 Pandemic
Frauen in Führungspositionen: Chancen und Risiken durch die COVID-19-Pandemie
Creators: name: Gulden, Vivien-Sophie
name: Thomsen, Stephan L.
Publisher: name: Hamburg : ZBW
Year: 2021
Subjects: subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: The low representation of women in leadership positions has induced the EU Commission to define measures and targets for gender equality. Almost simultaneously, the measures adopted in the coronavirus pandemic have led to profound changes in the organisation of work. These can slow or inhibit the process. This article provides an overview of the situation of women in leadership positions and the most important reasons for their underrepresentation. Special attention is paid to the effects of the COVID-19 measures in order to identify opportunities and risks. It becomes clear that the same measures entail both positive and negative effects through behavioural changes. Nevertheless, in the long term, women are likely to benefit significantly from the new conditions.
description: Die geringe Repräsentation von Frauen in Führungspositionen hat die EU-Kommission dazu veranlasst, Maßnahmen und Ziele für eine gleichberechtigte Führungsverantwortung zu definieren. Zeitgleich haben die Corona-Maßnahmen zu tiefgreifenden Veränderungen der Arbeitsorganisation geführt. Neben einem Überblick zur Situation von Frauen in Führungspositionen wird ein Augenmerk auf die Wirkungen der Corona-Maßnahmen gelegt, um Chancen und Risiken zu identifizieren. Diese Maßnahmen können durch Verhaltensänderungen mit sowohl positiven als auch negativen Effekten verbunden sein. Langfristig dürften Frauen von den veränderten Bedingungen jedoch profitieren.
Agglomeration in solid propellants loaded with inert particles Study of propellant formulation influence using Shadowgraphy Image Processing
Creators: name:  THOMAS DECKER
name:   ROBIN DEVILLERS
name:   STANY GALLIER
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: SOLID PROPELLANT
AGGLOMERATION
SHADOWGRAPHY
IMAGE PROCESSING
COMBUSTION

description: Shadowgraphy images of inert particles agglomeration in solid propellants are presented. New algorithms are developed and applied on three solid propellant compositions burning at a wide variety of pressures. Quantitative data focusing on the adhesive force applied by the propellant and the drag force applied by the gas flow on the particles are presented and discussed. The influence of pressure and oxidizing particles granular distribution is extensively investigated. Models of the adhesive the drag forces are proposed considering the experimental observations. The study offers new experimental and modeling perspectives and gives new insights into the complex physics of agglomeration.
Applications of Machine Learning in Manufacturing from a Job Order and Product Perspective : An Overview
Anwendungen des maschinellen Lernens in der Produktion aus Auftrags- und Produktsicht : Ein Überblick
Creators: name: Denkena, Berend
name: Dittrich, Marc-André
name: Noske, Hendrik
name: Kramer, Kathrin
name: Schmidt, Matthias
Publisher: name: Berlin : de Gruyter
Year: 2021
Subjects: subject: Machine Learning
subject: Production Planning
subject: Production Control
subject: Order-related Processes
subject: Product-related Processes
subject: Use Cases
subject: Maschinelles Lernen
subject: Produktionsplanung und -steuerung
subject: Produktprozesse
subject: Produktionsmanagement
subject: Anwendungen
subject: Dewey Decimal Classification::600 | Technik

description: Machine learning as a subfield of artificial intelligence can contribute to accelerating the design of processes in manufacturing, reducing cycle times, improving quality, and making better use of production capacities. This article provides a systematized overview of machine learning applications for product- and order-related processes and supports practitioners in identifying application areas in a focused manner and exploiting valueadded potential.
description: Das maschinelle Lernen als Teilgebiet der Künstlichen Intelligenz kann in der Fertigung dazu beitragen, Prozesse beschleunigt auszulegen, Zykluszeiten und Ausschuss zu reduzieren und Produktionskapazitäten besser auszuschöpfen. Dieser Beitrag gibt einen systematisierten Überblick über Anwendungen des maschinellen Lernens für produkt- und auftragsbezogene Prozesse und unterstützt Praxisanwender dabei, Einsatzfelder gezielt zu identifizieren und Wertschöpfungspotenziale zu erschließen.
Regge Trajectories in $\mathcal{N}=2$ Supersymmetric Yang-Mills Theory
Creators: name: Cordova, Clay
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We demonstrate that $\mathcal{N}=2$ supersymmetric non-Abelian gauge theories have towers of BPS particles obeying a Regge relation, $J \sim m^{2},$ between their angular momenta, $J,$ and their masses, $m$. For $SU(N)$ Yang-Mills theories, we estimate the slope of these Regge trajectories using a non-relativistic quiver quantum mechanics model. Along the way, we also prove various structure theorems for the quiver moduli spaces that appear in the calculation.
description: 34 pages, 6 figures, + appendices. V2 references corrected
MOESM1 of From ‘Vermeer Illuminated’ to ‘The Girl in the Spotlight’: approaches and methodologies for the scientific (re-)examination of Vermeer’s Girl with a Pearl Earring
Creators: name: Vandivere, Abbie
name: Wadum, Jørgen
name: Berg, Klaas
name: Loon, Annelies
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1: Appendix S1. Table of samples from Girl with a Pearl Earring that were (re-)examined in 2017–19.
Do sustainable food system innovations foster inclusiveness and social cohesion? A comparative study
Creators: name: Hennchen, Benjamin
name: Schäfer, Martina
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 300 Sozialwissenschaften
subject: social innovations
subject: inclusiveness
subject: social cohesion
subject: citizen shareholder company
subject: community supported agriculture
subject: food co-ops
subject: food system transition

description: Introduction: Existing food systems are not only responsible for severe environmental damage, but also face pressing social challenges, with people having uneven access to safe and healthy food, good working conditions, and political participation. These socio-ethical aspects play a key role in successful food transitions. So far, aspects of social cohesion and inclusiveness within social food innovations have rarely been analyzed in more depth. Many social innovations have emerged over the last few decades, such as land cooperatives, farm leasing models, community-supported agriculture, or citizen shareholder companies. Expectations towards these financing models vary from facilitating more investment in a sustainable and socially responsible agri-food sector and a shift towards more local food to the creation of transparent relationships between food producers and consumers. Objectives: It is against this backdrop that this paper compares three different food innovations—citizen shareholder companies, community-supported agriculture, and food co-ops—regarding their inclusiveness, the degree of member involvement, and the quality of experienced connectedness. Methods: Empirically, this paper draws on quantitative and qualitative data, including an online survey, two focus group discussions, and a broad literature search. Results: Findings reveal that all food innovations show a rather low level of inclusiveness, although efforts are being made to overcome barriers to access. Food innovations generate social cohesion between different actors along the value-added chain, which is constituted differently in a more service-oriented versus a community-oriented model. Discussion: Overall, these innovations provide key momentum towards the dominant food regime by rewarding producers for sustainable practices, establishing stronger producer–consumer relationships, and motivating consumers to assume shared responsibility. Based on the different approaches adopted, we consider the food innovations as complementary for food system transitions.
การใช้ปลายข้าวไรส์เบอรี่เป็นอาหารไก่ไข่ ต่อปริมาณผลผลิตไข่ คุณภาพไข่ และค่าชี้วัดในเลือดของไก่ไข่ที่เลี้ยงในโรงเรือนแบบเปิด
Creators: name: สนทยา มูลศรีแก้ว
Publisher: name: คณะเทคโนโลยีการเกษตร มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2023
Subjects: ปลายข้าวไรส์เบอรี่
ผลผลิตไข่
คุณภาพไข่
ค่าชี้วัดในเลือด
โรงเรือนแบบเปิด

description: วารสารเกษตรพระวรุณ, 20, 2, 29-36
Evaluation of an assistance system supporting older pedestrians’ road crossing in virtual reality and in a real-world field test
Creators: name: Wiczorek, Rebecca
name: Protzak, Janna
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 150 Psychologie
subject: older pedestrians
subject: assistance system
subject: road crossing
subject: virtual reality
subject: field study

description: Older pedestrians are at a high risk of becoming victims of car accidents because they tend not to pay sufficient attention to upcoming traffic. Within our research project, an assistance system for older pedestrians has been developed. It detects the street and communicates with the users through a vibrotactile interface. Two evaluation studies have been carried out in order to understand the potential benefits and drawbacks of the developed assistance system. One study was conducted in a virtual environment (VR) with 23 participants, aged 65+. The other experiment was a field test in a real street environment with 26 participants, aged 65+. Objective dependent variables in both experiments were checking for traffic (operationalized via head tracking) and stopping in front of the street (VR study), i.e., approaching time (field test). Workload and acceptance served as subjective dependent variables. Analysis of the VR experiment showed significantly more head rotation with the assistance system than without it, as well as significantly more with cars than without cars. The same was true for the frequency of stopping. No significant difference was found concerning workload. With regard to acceptance, the majority of participants indicated that the system was supportive and able to reduce risks in traffic. In the field test, results for head rotation confirmed the findings of the VR study. Analysis showed a marginally significant higher head rotation frequency with the alarm system than without, and significantly different patterns of checking for traffic at marked and unmarked crossings. However, unlike in the VR study, no differences were found in approaching time with and without the assistance system. Approaching time was slower at marked crossings. No difference was found with regard to workload, meaning the use of the assistance system did not increase the subjectively perceived workload of participants. Analysis of the acceptance questionnaire showed a positive attachment to the assistance system. However, most reported that they did not experience any advantage from the use of the system, and expressed no intention to buy such a system for themselves.
Topological 4-manifolds with right-angled Artin fundamental groups
Creators: name: Hambleton, Ian
name: Hildum, Alyson
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57N13, 57R65, 20F36

description: We classify closed, topological spin$^+$ 4-manifolds with fundamental group $π$ of cohomological dimension $\leq 3$ (up to s-cobordism), after stabilization by connected sum with at most $b_3(π)$ copies of $S^2\times S^2$. In general we must also assume that $π$ also satisfies certain K-theory and assembly map conditions. Examples for which these conditions hold include the torsion-free fundamental groups of 3-manifolds and all right-angled Artin groups whose defining graphs have no 4-cliques.
description: 39 pages. This is the final version. References have been updated