cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Forgotten Chindits – 23 British Infantry Brigade
Creators: name: Wilton, George
Publisher: name: British Journal for Military History
Year: 2020

description: In March 1944 Japan launched its Operation U Go offensive which resulted in the well documented battles of Kohima and Imphal in north east India. At the same time 23 British Infantry Brigade was finalising Long Range Penetration training before participation in Operation Thursday, the second Chindit campaign that was already underway in north eastern Burma. That plan was changed, and the brigade was diverted to operate in the mountainous Naga Hills to protect the eastern flank of Kohima and disrupt Japanese supply lines from Burma. Much has been written about Burma, Kohima, Imphal and the two Chindit operations, but surprisingly little on the activities of 23 British Infantry Brigade in 1944. This article seeks to redress some of that imbalance by considering: how the brigade prepared for the Long Range Penetration role; how it operated in the Naga Hills; how those operations differed to Operation Thursday; and finally, if this was an effective use of the brigade.
description: British Journal for Military History, Vol 6 No 3 (2020)
Squeezing function corresponding to polydisk
Creators: name: Gupta, Naveen
name: Pant, Sanjay Kumar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32F45, 32H02

description: In the present article, we define squeezing function corresponding to polydisk and study its properties. We investigate relationship between squeezing fuction and squeezing function corresponding to polydisk.
description: Published in Complex Analysis and its Synergies
The Runaway Binary LP 400-22 is Leaving the Galaxy
Creators: name: Kilic, Mukremin
name: Gianninas, A.
name: Brown, Warren R.
name: Harris, Hugh C.
name: Dahn, Conard C.
name: Agueros, M. A.
name: Heinke, Craig O.
name: Kenyon, S. J.
name: Panei, J. A.
name: Camilo, Fernando
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present optical spectroscopy, astrometry, radio, and X-ray observations of the runaway binary LP 400-22. We refine the orbital parameters of the system based on our new radial velocity observations. Our parallax data indicate that LP 400-22 is significantly more distant (3 sigma lower limit of 840 pc) than initially predicted. LP 400-22 has a tangential velocity in excess of 830 km/s; it is unbound to the Galaxy. Our radio and X-ray observations fail to detect a recycled millisecond pulsar companion, indicating that LP 400-22 is a double white dwarf system. This essentially rules out a supernova runaway ejection mechanism. Based on its orbit, a Galactic center origin is also unlikely. However, its orbit intersects the locations of several globular clusters; dynamical interactions between LP 400-22 and other binary stars or a central black hole in a dense cluster could explain the origin of this unusual binary.
description: MNRAS, in press
Anne-Marie Walters vs. George Starr: Reflections on Gendered Representations within the Special Operations Executive
Creators: name: Balu, Raphaële
Publisher: name: British Journal for Military History
Year: 2020

description: This article explores gender relations within the Special Operations Executive (SOE) during the Second World War. To do so, it scrutinises the story of its agent Anne-Marie Walters. Although SOE was a trailblazer in recruiting women for military missions, this case study shows how gender prejudices could mark the experience of female agents. Walters’ story indeed shows that her gender involved not only a limitation of her actions in the field, but also how it diminished her credit within SOE’s headquarters and even how it was used against her when she reported serious misconduct by her senior officer.
description: British Journal for Military History, Vol 6 No 3 (2020)
title: Des Vaterlands Grösse Des Vaterlands Glück O schafft sie! O bringt sie Dem Volke zurück!; [1848]
title: 1 Aufseher. Meine Dame dieser Bisser darf nicht hier oben bleiben, denn hier herauf dürfen nur Damen. 2 Von Langgans. Frau Gräfin seit wann haben Sie denn diesen Bisser?? ich habe ihn noch nicht bei Ihnen gesehen. 3 Gräfin von Seckbach. Ich habe ihn noch nicht lange, er war früher der Gräfin von Sagans, und ist dort entlaufen, da er glaubt bei mir besser versorgt zu sein, so läuft er mir jetzt nach, und schlüpft so manchmal mit herauf, man muss eben Geduld mit dem lieben Thierchen haben.
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Parallelausgabe mit dem Titel: Orgel-Gallerie
Lateralisation and sociability under natural and experimental predation pressure in the Trinidadian guppy (Poecilia reticulata)
Creators: name: Penry-Williams, Iestyn Lloyd
Publisher: name: Macquarie University
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: Predators impose a strong selective pressure on the behavioural traits of prey species. Group living, or sociability, allows individuals to reduce their own risk of predation through avoidance, dilution, and confusion effects. Another potentially beneficial mechanism is behavioural lateralisation, or “handedness”, the asymmetrical expression of cognitive brain functions through a directional bias in visual or motor tasks. In my thesis, I explore the interaction between behavioural lateralisation, sociability, and predation in both natural and captive populations of Trinidadian guppies (Poecilia reticulata). In Chapter Two, I examine the consistency between current behavioural lateralisation methodologies and assess the assumptions behind these methods, including the number of incorporated turn choices and the impact of random chance. In Chapter Three, I present the use of environmental DNA in assessing natural piscine guppy predator communities at six sites across the Northern Range of Trinidad. Using this measure of predation, I assess its viability in predicting differentiation of adaptive anti-predatory behaviours in natural guppies, including sociability, activity, and both visual and motor lateralisation. In Chapter Four, I assess the visual lateralisation of guppies tested either solitarily or in groups in the presence or absence of a live predator, the blue acara (Andinoacara pulcher). Using a repeated measures design, I investigate the repeatability of guppies’ visual lateralisation in terms of personality variation across the investigated contexts. In Chapter Five, I assess the visual lateralisation of natural guppies when viewing a social stimulus and their sociability across a gradient of predation risk using nineteen sites in the Northern Range of Trinidad. Overall, my research demonstrates relatively low levels of lateralisation throughout contexts and populations. However, subtle trends in the lateralisation of eye-use when viewing a predatory or social stimulus appear to exist in relation to predation risk, with an apparent social conformity in lateralisation when assessed in groups.
A ‘Lack of Moral Fibre’ in Royal Air Force Bomber Command and Popular Culture
Creators: name: Ellin, Dan
Publisher: name: British Journal for Military History
Year: 2020

description: Royal Air Force aircrew endured mental and physical stresses during bombing operations. Their chances of completing a tour of operations unscathed were around one in four, and many were aware the chances were slim. Some who refused to fly were accused of ‘lacking moral fibre’ (LMF). Although this was not a medical diagnosis it is frequently viewed through the lens of mental health and reactions to trauma and it has become a powerful and important cultural phenomenon. This article re-examines LMF in the culture of the wartime Royal Air Force, before considering how and why LMF is remembered by veterans and in popular histories since the war.
description: British Journal for Military History, Vol 6 No 3 (2020)
Resonant Self-Interacting Dark Matter from Dark QCD
Creators: name: Tsai, Yu-Dai
name: McGehee, Robert
name: Murayama, Hitoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present models of resonant self-interacting dark matter in a dark sector with QCD, based on analogies to the meson spectra in Standard Model QCD. For dark mesons made of two light quarks, we present a simple model that realizes resonant self-interaction (analogous to the $ϕ$-K-K system) and thermal freeze-out. We also consider asymmetric dark matter composed of heavy and light dark quarks to realize a resonant self-interaction (analogous to the $Υ(4S)$-B-B system) and discuss the experimental probes of both setups. Finally, we comment on the possible resonant self-interactions already built into SIMP and ELDER mechanisms while making use of lattice results to determine feasibility.
description: 10 pages, 5 figures
‘Everybody to be armed’: Italian naval personnel and the Axis occupation of Bordeaux, 1940–1943
Creators: name: Henry, Alex
Publisher: name: British Journal for Military History
Year: 2020

description: Bordeaux remains marked by ‘l’occupation’. Huge U-boat pens dominate the maritime districts of the city, an imposing reminder of the city's painful history. While such monuments maintain the memory of the German occupation, the Italian wartime presence in the city has been overlooked. Yet the Italian naval garrison had a huge influence on Bordeaux life. This article explores these relationships from the words of captured Italians, whose private conversations reveal how their actions were defined by violence and exploitation. This is a view of Italian soldiery that undermines the myth of the 'brava gente' – a people untainted by the brutality of war.
description: British Journal for Military History, Vol 6 No 3 (2020)
Generalized Kerr/CFT correspondence with electromagnetic field
Creators: name: Zhang, Cheng-Yong
name: Tian, Yu
name: Wu, Xiao-Ning
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The electrovac axisymmetric extreme isolated horizon/CFT correspondence is considered. By expansion techniques under the Bondi-like coordinates, it is proved that the near horizon geometry of electrovac axisymmetric extreme isolated horizon is unique. Furthermore, explicit coordinate transformation between the Bondi-like coordinates and the Poincare-type coordinates for the near horizon metric of the extreme Kerr-Newmann spacetime is found. Based on these analyses and the thermodynamics of the isolated horizon, then, the Kerr/CFT correspondence is generalized to nonstationary extreme black holes with electromagnetic fields.
description: 14 pages
Ab-initio-based Interface Modeling and Statistical Analysis for Estimate of the Water Contact Angle on a Metallic Cu(111) Surface
Creators: name: Murono, Takahiro
name: Hongo, Kenta
name: Nakano, Kousuke
name: Maezono, Ryo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Controlling the water contact angle on a surface is important for regulating its wettability in industrial applications, which involves developing ab initio prediction scheme of accurately predicting the angle. The scheme requires structural models for the adsorption of liquid molecules on a surface, but their reliability depend on whether the surfaces comprise insulating or metallic materials. Previous ab initio studies have focused on the estimation of the water contact angle on insulators, where the periodic-honeycomb array of water molecules was adopted as the adsorption model for the water on the insulating surface and succeeded in the insulating cases. This study, however, focus on the water contact angle on a metallic surface, and propose a simple ab initio based estimation scheme. We not only adopt the previously proposed structural modeling based on the periodic-honyecomb array, but also consider an ensemble of isolated water oligomers that have different molecular coverage (ML) values. We established a statistic model to predict a contact angle of the water wetting on a Cu(111) surface: The coverage-dependent contact angles obtained from each of the isolated clusters was fit to a quadratic regression, and the contact angle was interpolated by referring to a ML value of water layer in literature. This interpolated value lay within the deviation of experimental angles. In addition, the Boltzmann-average over the isolated clusters was found to agree well with the interpolated one. This indicates that the Boltzmann-average is useful for estimating the contact angle of other metallic surfaces without knowing a ML value a priori.
description: 4 pages
Modelling Lipid Competition Dynamics in Heterogeneous Protocell Populations
Creators: name: Shirt-Ediss, Ben
name: Ruiz-Mirazo, Kepa
name: Mavelli, Fabio
name: Solé, Ricard V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: In addressing the origins of Darwinian evolution, recent experimental work has been focussed on the discovery of simple physical effects which would provide a relevant selective advantage to protocells competing with each other for a limited supply of lipid. In particular, data coming from Szostak's lab suggest that the transition from simple prebiotically plausible lipid membranes to more complex and heterogeneous ones, closer to real biomembranes, may have been driven by changes in the fluidity of the membrane and its affinity for the available amphiphilic compound, which in turn would involve changes in vesicle growth dynamics. Earlier work from the same group reported osmotically-driven competition effects, whereby swelled vesicles grow at the expense of isotonic ones. In this paper, we try to expand on these experimental studies by providing a simple mathematical model of a population of competing vesicles, studied at the level of lipid kinetics. In silico simulations of the model are able to reproduce qualitatively and often quantitatively the experimentally reported competition effects in both scenarios. We also develop a method for numerically solving the equilibrium of a population of competing model vesicles, which is quite general and applicable to different vesicle kinetics schemes.
description: 15 pages, 6 figures, 1 table
Semitransitive and transitive subsemigroups of the inverse symmetric semigroups
Creators: name: Cvetko-Vah, Karin
name: Bukovšek, Damjana Kokol
name: Košir, Tomaž
name: Kudryavtseva, Ganna
name: Lavrenyuk, Yaroslav
name: Oliynyk, Andriy
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20M20

description: We classify minimal transitive subsemigroups of the finitary inverse symmetric semigroup modulo the classification of minimal transitive subgroups of finite symmetric groups; and semitransitive subsemigroups of the finite inverse symmetric semigroup of the minimal cardinality modulo the classification of transitive subgroups of the minimal cardinality of finite symmetric groups.
description: 16 pages
Semitransitive subsemigroups of the singular part of the finite symmetric inverse semigroup
Creators: name: Cvetko-Vah, Karin
name: Bukovšek, Damjana Kokol
name: Košir, Tomaž
name: Kudryavtseva, Ganna
Publisher: name: arXiv
Year: 2009
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 20M20

description: We prove that the minimal cardinality of the semitransitive subsemigroup in the singular part $\IS_n\setminus §_n$ of the symmetric inverse semigroup $\IS_n$ is $2n-p+1$, where $p$ is the greatest proper divisor of $n$, and classify all semitransitive subsemigroups of this minimal cardinality.
Diameters of commuting graphs of matrices over semirings
Creators: name: Dolžan, David
name: Bukovšek, Damjana Kokol
name: Oblak, Polona
Publisher: name: arXiv
Year: 2010
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 15A27, 16Y60, 05C50, 05C12

description: We calculate the diameters of commuting graphs of matrices over the binary Boolean semiring, the tropical semiring and an arbitrary nonentire commutative semiring. We also find the lower bound for the diameter of the commuting graph of the semiring of matrices over an arbitrary commutative entire antinegative semiring.
description: 8 pages
Loeb Extension and Loeb Equivalence
Creators: name: Anderson, Robert M.
name: Duanmu, Haosui
name: Schrittesser, David
name: Weiss, William
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 28E05 (primary), 03H05, 26E35

description: In Keisler and Sun (2004), the authors raise several open problems on Loeb equivalences between various internal probability spaces. We provide counter-examples for the first two open problems. Moreover, we reduce the third open problem to the following question: Is the internal algebra generated by the union of two Loeb equivalent internal algebras a subset of the Loeb extension of any one of the internal algebra?
description: 10 pages
A Separate Peace? Reconsidering Post-conflict Military Occupations
Creators: name: Barnes, Dayna
Publisher: name: British Journal for Military History
Year: 2020

description: This research note makes the case for further historical work comparing the military occupations of Japan and Iraq. Despite serious differences, a comparison of these two related events reveals long-term trends. These include Anglo-American strategic and economic thinking, questions of legitimacy in military occupations, how policy planning works, the problem of interagency rivalry in foreign policy making, and the limitations of advance planning.
description: British Journal for Military History, Vol 6 No 3 (2020)
The critical layer during transition of the spiral Poiseuille flow in an annular gap
Creators: name: Ram, Venkatesa I. Vasanta
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Subject of this paper falls under the broad heading of the propagation of disturbances causing transition in a fully developed spiral annular flow. The problem is approached through reformulation of the linearised equations of motion governing small-amplitude disturbances in a parameter space that differs from that conventionally employed for this purpose. The alternative parameter space comprises a suitably defined Reynolds number that is formed with a resultant characteristic velocity which is a vector sum of the axial and azimuthal characteristic velocities, a swirl parameter that is the ratio of the azimuthal to the axial characteristic velocity, and the ratio of the annular gap to the mean diameter of the cylinders. In the limits of the swirl parameter assuming very small or very large values, the newly derived generalised Orr-Sommerfeld and Squire equations for disturbance propagation in the revised parameter space reduce to the corresponding equations that are known and well established for the limiting cases of disturbance propagation as the swirl parameter goes to zero or infinity respectively. Furthermore, they also lead naturally to the criterion that determines from the equations themselves the analytical expression for the location of the critical layer in spiral annular flow, the scaling behaviour of the thickness of the critical layer with the Reynolds number and the swirl parameter, and the equation governing the dynamics of the flow in the critical layer. They thus explicitly reveal the effect of swirl on the critical layer.
description: 14 pages. The replacement is a continuation of the earlier submission
NARA Escape and Evasion Reports
Creators: name: Deacon, Valerie
Publisher: name: British Journal for Military History
Year: 2020

description: This Research Note gives a brief introduction to the series of Escape and Evasion reports held by the National Archives and Records Administration (NARA). Making up a rich source base, these documents can be used to explore the operational history of the United States Army Air Force (USAAF), the history of MIS-X, escape and evasion planning during the Second World War, diplomatic history, and social history. In addition, they offer a very compelling story of the relationships that flourished between aircrews and European civilians during the war.
description: British Journal for Military History, Vol 6 No 3 (2020)
Who Speaks for France? Vichy, Free France and the Battle over French Legitimacy: 1940-1942
Creators: name: Chin, Rachel
Publisher: name: British Journal for Military History
Year: 2020

description: In June 1940 the French metropolitan government signed an armistice with Hitler’s Germany, which effectively removed France from the conflict. At the same time, the little known French General Charles de Gaulle was in London establishing himself at the head of the Free French resistance movement. This set the stage for arguments over who represented the French nation and its interests. This article explores how the Vichy government and the Free French movement constructed their respective claims to legitimacy using legal, moral and historical arguments. And it considers how these claims were fought through armed clashes over French colonial territory.
description: British Journal for Military History, Vol 6 No 3 (2020)
Review of 1974/02/02 Concert at Royal Northern College of Music, Manchester. Music Digest: The Music of Edgard Varèse. Saar Radio Symphony Orchestra conducted by Hans Zender, Stephen Roberts (bass)
Creators: name: Smalley, Denis
Publisher: name: Contact: A Journal for Contemporary Music (1971-1990)
Year: 2019

description: Contact: A Journal for Contemporary Music (1971-1990), No 8 (1974): Contact: A Journal for Contemporary Music
Local survival of spread of infection among biased random walks
Creators: name: Baldasso, Rangel
name: Stauffer, Alexandre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K37, 60K35, 82C22

description: We study infection spread among biased random walks on $\mathbb{Z}^{d}$. The random walks move independently and an infected particle is placed at the origin at time zero. Infection spreads instantaneously when particles share the same site and there is no recovery. If the initial density of particles is small enough, the infected cloud travels in the direction of the bias of the random walks, implying that the infection does not survive locally. When the density is large, the infection spreads to the whole $\mathbb{Z}^{d}$. The proofs rely on two different techniques. For the small density case, we use a description of the infected cloud through genealogical paths, while the large density case relies on a renormalization scheme.
description: 31 pages, 4 figures. Manuscript matching published version
Advertising in the IoT Era: Vision and Challenges
Creators: name: Aksu, Hidayet
name: Babun, Leonardo
name: Conti, Mauro
name: Tolomei, Gabriele
name: Uluagac, A. Selcuk
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences
subject: H.3

description: The Internet of Things (IoT) extends the idea of interconnecting computers to a plethora of different devices, collectively referred to as smart devices. These are physical items - i.e., "things" - such as wearable devices, home appliances, and vehicles, enriched with computational and networking capabilities. Due to the huge set of devices involved - and therefore, its pervasiveness - IoT is a great platform to leverage for building new applications and services or extending existing ones. In this regard, expanding online advertising into the IoT realm is an under-investigated yet promising research direction, especially considering that traditional Internet advertising market is already worth hundreds of billions of dollars. In this paper, we first propose the architecture of an IoT advertising platform inspired by the well-known business ecosystem, which the traditional Internet advertising is based on. Additionally, we discuss the key challenges to implement such a platform with a special focus on issues related to architecture, advertisement content delivery, security, and privacy of the users.
description: Accepted for publication at IEEE Communications Magazine
Giant Quasiparticle Bandgap Modulation in Graphene Nanoribbons Supported on Weakly Interacting Surfaces
Creators: name: Jiang, Xueping
name: Kharche, Neerav
name: Kohl, Paul
name: Boykin, Timothy B.
name: Klimeck, Gerhard
name: Luisier, Mathieu
name: Ajayan, Pulickel M.
name: Nayak, Saroj K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In general, there are two major factors affecting bandgaps in nanostructures: (i) the enhanced electron-electron interactions due to confinement and (ii) the modified self-energy of electrons due to the dielectric screening. While recent theoretical studies on graphene nanoribbons (GNRs) report on the first effect, the effect of dielectric screening from the surrounding materials such as substrates has not been thoroughly investigated. Using large-scale electronic structure calculations based on the GW approach, we show that when GNRs are deposited on substrates, bandgaps get strongly suppressed (by as much as 1 eV) even though the GNR-substrate interaction is weak.
Dif-MAML: Decentralized Multi-Agent Meta-Learning
Creators: name: Kayaalp, Mert
name: Vlaski, Stefan
name: Sayed, Ali H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: The objective of meta-learning is to exploit the knowledge obtained from observed tasks to improve adaptation to unseen tasks. As such, meta-learners are able to generalize better when they are trained with a larger number of observed tasks and with a larger amount of data per task. Given the amount of resources that are needed, it is generally difficult to expect the tasks, their respective data, and the necessary computational capacity to be available at a single central location. It is more natural to encounter situations where these resources are spread across several agents connected by some graph topology. The formalism of meta-learning is actually well-suited to this decentralized setting, where the learner would be able to benefit from information and computational power spread across the agents. Motivated by this observation, in this work, we propose a cooperative fully-decentralized multi-agent meta-learning algorithm, referred to as Diffusion-based MAML or Dif-MAML. Decentralized optimization algorithms are superior to centralized implementations in terms of scalability, avoidance of communication bottlenecks, and privacy guarantees. The work provides a detailed theoretical analysis to show that the proposed strategy allows a collection of agents to attain agreement at a linear rate and to converge to a stationary point of the aggregate MAML objective even in non-convex environments. Simulation results illustrate the theoretical findings and the superior performance relative to the traditional non-cooperative setting.
You Must Have Clicked on this Ad by Mistake! Data-Driven Identification of Accidental Clicks on Mobile Ads with Applications to Advertiser Cost Discounting and Click-Through Rate Prediction
Creators: name: Tolomei, Gabriele
name: Lalmas, Mounia
name: Farahat, Ayman
name: Haines, Andrew
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applications (stat.AP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: G.3; H.3.3

description: In the cost per click (CPC) pricing model, an advertiser pays an ad network only when a user clicks on an ad; in turn, the ad network gives a share of that revenue to the publisher where the ad was impressed. Still, advertisers may be unsatisfied with ad networks charging them for "valueless" clicks, or so-called accidental clicks. [...] Charging advertisers for such clicks is detrimental in the long term as the advertiser may decide to run their campaigns on other ad networks. In addition, machine-learned click models trained to predict which ad will bring the highest revenue may overestimate an ad click-through rate, and as a consequence negatively impacting revenue for both the ad network and the publisher. In this work, we propose a data-driven method to detect accidental clicks from the perspective of the ad network. We collect observations of time spent by users on a large set of ad landing pages - i.e., dwell time. We notice that the majority of per-ad distributions of dwell time fit to a mixture of distributions, where each component may correspond to a particular type of clicks, the first one being accidental. We then estimate dwell time thresholds of accidental clicks from that component. Using our method to identify accidental clicks, we then propose a technique that smoothly discounts the advertiser's cost of accidental clicks at billing time. Experiments conducted on a large dataset of ads served on Yahoo mobile apps confirm that our thresholds are stable over time, and revenue loss in the short term is marginal. We also compare the performance of an existing machine-learned click model trained on all ad clicks with that of the same model trained only on non-accidental clicks. There, we observe an increase in both ad click-through rate (+3.9%) and revenue (+0.2%) on ads served by the Yahoo Gemini network when using the latter. [...]
title: Parlamentarischer Anstand; [1848]
title: Zu äugeln mit den Schönen ist Volks-Vertreter's Pflicht Denn mein Gesetz des Anstands hat keinen Datum nicht
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Vorlageform der Veröffentlichungsangabe: Verlag von J. B. Simon in Frankfurt a/M.
Synthesis of Bi-based superconductor by microwave-assisted hydrothermal method
Creators: name: Lima, R. G.
name: Rodrigues, V. D.
name: Carvalho, C. L.
name: Teixeira, S. R.
name: Souza, A. E.
name: Zadorosny, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we studied the synthesis of BSCCO-2212 superconducting phase associating a quite similar method developed by Pechini (PM) with the microwave-assisted hydrothermal method, MAH. To study the influence of MAH on the properties of BSCCO system, we synthesized two samples by such method. For one sample we used carbonates (CMAH) and for the other one we used nitrates (NMAH) as chemical reagents. We also produced a reference sample (REF) just using carbonates by PM to compare their morphological and superconducting properties. The structural properties of the samples were analyzed by scanning electron microscopy and X-ray diffraction. It can be noted that the Bi-2212 phase is predominant in all samples; MAH samples present larger grains than the REF one. However, we can observe that the magnetic behaviour of NMAH is closer to that presented by REF.
description: 4 pages, 5 figures, work presented in EUCAS 2013
Sign choices in the AGM for genus two theta constants
Creators: name: Kieffer, Jean
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Existing algorithms to compute genus 2 theta constants in quasi-linear time use Borchardt sequences, an analogue of the arithmetic-geometric mean for four complex numbers. In this paper, we show that these Borchardt sequences are given by good choices of square roots only, as in the genus 1 case. This removes the sign indeterminacies in the algorithm without relying on numerical integration.
Reverse engineering of CAD models via clustering and approximate implicitization
Creators: name: Raffo, Andrea
name: Barrowclough, Oliver J. D.
name: Muntingh, Georg
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: Graphics (cs.GR)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 65D17, 68U07, 62H30

description: In applications like computer aided design, geometric models are often represented numerically as polynomial splines or NURBS, even when they originate from primitive geometry. For purposes such as redesign and isogeometric analysis, it is of interest to extract information about the underlying geometry through reverse engineering. In this work we develop a novel method to determine these primitive shapes by combining clustering analysis with approximate implicitization. The proposed method is automatic and can recover algebraic hypersurfaces of any degree in any dimension. In exact arithmetic, the algorithm returns exact results. All the required parameters, such as the implicit degree of the patches and the number of clusters of the model, are inferred using numerical approaches in order to obtain an algorithm that requires as little manual input as possible. The effectiveness, efficiency and robustness of the method are shown both in a theoretical analysis and in numerical examples implemented in Python.
Analysis of the proton longitudinal structure function from the gluon distribution function
Creators: name: Boroun, G. R.
name: Rezaei, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We make a critical, next-to-leading order, study of the relationship between the longitudinal structure function FL and the gluon distribution proposed in Cooper- Sarkar et al. (Z. Phys. C 39:281, 1988; Acta Phys. Pol. B 34:2911 2003), which is frequently used to extract the gluon distribution from the proton longitudinal structure function at small x. The gluon density is obtained by expanding at particular choices of the point of expansion and compared with the hard Pomeron behavior for the gluon density. Comparisons with H1 data are made and predictions for the proposed best approach are also provided.
description: 5 pages, 5 figures
Schwarzschild Quantum Fluctuations from Regge-Wheeler Scattering
Creators: name: Graham, Noah
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply a multichannel variable phase method to scattering from Regge-Wheeler potentials. Using a reduced version of the WKB subtraction developed by Candelas and Howard, this approach allows for efficient numerical calculations of scattering data for imaginary wave number, making it possible to compute quantum expectation values in a Schwarzschild curved spacetime background through Wick rotation to the imaginary frequency axis. These scattering theory techniques are also potentially applicable to a variety of other problems involving wave propagation in curved spacetime.
description: 12 pages, 4 .eps figures; v2: fixed typos, added example calculation; v3: fixed typo (correct sign in Eq. A7); v4: fixed typo (missing factor in Eq. 28), added clarification of techniques for numerical calculation
A fiber-integrated single photon source emitting at telecom wavelengths
Creators: name: Lee, Chang-Min
name: Buyukkaya, Mustafa Atabey
name: Aghaeimeibodi, Shahriar
name: Richardson, Christopher J. K.
name: Waks, Edo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Fiber-coupled single photon sources are essential components of photonics-based quantum information processors. Most fiber-coupled single photon sources require careful alignment between fibers and quantum emitters. In this work, we present an alignment-free fiber-integrated single photon source based on an InAs/InP quantum dot emitting at telecom wavelengths. We designed a nanobeam containing the quantum dots attached to a fiber taper. The adiabatic tapered coupler of the nanobeam enables efficient light coupling to the fiber taper. Using a tungsten probe in a focused ion beam system, we transferred the nanobeam to the fiber taper. The observed fiber-coupled single photon emission occurs with a brightness of 1.5% and purity of 86%. This device provides a building block for fiber-optic quantum circuits that have various applications, such as quantum communication and distributed quantum computing.
Adaptive network approach for emergence of societal bubbles
Creators: name: Maia, Hugo P.
name: Ferreira, Silvio C.
name: Martins, Marcelo L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: Far beyond its relevance for commercial and political marketings, opinion formation and decision making processes are central for representative democracy, government functioning, and state organization. In the present report, a stochastic agent-based model is investigated. The model assumes that bounded confidence and homophily mechanisms drive both opinion dynamics and social network evolution through either rewiring or breakage of social contacts. In addition to the classical transition from global consensus to opinion polarization, our main findings are (i) a cascade of fragmentation of the social network into echo chambers (modules) holding distinct opinions and rupture of the bridges interconnecting these modules as the tolerance for opinion differences increases. There are multiple surviving opinions associated to these modules within which consensus is formed; and (ii) the adaptive social network exhibits a hysteresis-like behavior characterized by irreversible changes in its topology as the opinion tolerance cycles from radicalization towards consensus and backward to radicalization.
description: 9 pages, 7 figures
Guidance for research organisations on how to implement responsible and fair approaches for research assessment consultation feedback
Creators: name: Carr, David
name: Towers, Sonya
Publisher: name: Wellcome Trust
Year: 2020
Subjects: Science Policy

description: We published a draft version of this guidance for consultation in early 2020 and received more than 50 responses from research organisations and the broader research community. This final version has been revised to take account of the hugely valuable feedback we received.
A General Framework for the Semantics of Type Theory
Creators: name: Uemura, Taichi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Category Theory (math.CT)
subject: Logic in Computer Science (cs.LO)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: F.4.1; F.3.2
subject: 03B38 (Primary) 18C10 (Secondary)

description: We propose an abstract notion of a type theory to unify the semantics of various type theories including Martin-Löf type theory, two-level type theory and cubical type theory. We establish basic results in the semantics of type theory: every type theory has a bi-initial model; every model of a type theory has its internal language; the category of theories over a type theory is bi-equivalent to a full sub-2-category of the 2-category of models of the type theory.
Automotion of Domain Walls for Spintronic Interconnects
Creators: name: Nikonov, Dmitri E.
name: Manipatruni, Sasikanth
name: Young, Ian A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We simulate automotion, the spontaneous transport of a magnetic domain wall under the influence of demagnetization and magnetic anisotropy, in nanoscale spintronic interconnects. In contrast to spin transfer driven magnetic domain wall motion, the proposed interconnects operate with only a transient current pulse and provide favorable scaling down to the 20nm scale. Cases of both in-plane and perpendicular magnetization are considered. Analytical dependence of the velocity of domain walls on the angle of magnetization are compared with full micromagnetic simulations. Deceleration, disappearance, and reflection of domain walls are demonstrated. Dependences of the magnetization angle on the current pulse parameters are studied. The energy and delay analysis suggests that automotion is an attractive option for spintronic logic interconnects.
description: 9 figures, 25 pages
Independent Process Approximations for Random Combinatorial Structures
Creators: name: Arratia, Richard
name: Tavare, Simon
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Many random combinatorial objects have a component structure whose joint distribution is equal to that of a process of mutually independent random variables, conditioned on the value of a weighted sum of the variables. It is interesting to compare the combinatorial structure directly to the independent discrete process, without renormalizing. The quality of approximation can often be conveniently quantified in terms of total variation distance, for functionals which observe part, but not all, of the combinatorial and independent processes. Among the examples are combinatorial assemblies (e.g. permutations, random mapping functions, and partitions of a set), multisets (e.g. polynomials over a finite field, mapping patterns and partitions of an integer), and selections (e.g. partitions of an integer into distinct parts, and square-free polynomials over finite fields). We consider issues common to all the above examples, including equalities and upper bounds for total variation distances, existence of limiting processes, heuristics for good approximations, the relation to standard generating functions, moment formulas and recursions for computing densities, refinement to the process which counts the number of parts of each possible type, the effect of further conditioning on events of moderate probability, large deviation theory and nonuniform measures on combinatorial objects, and the possibility of getting useful results by overpowering the conditioning.
description: 71 pages, and nearly identical to the 1994 Advances in Mathematics article
Orchestrating Service Migration for Low Power MEC-Enabled IoT Devices
Creators: name: Okwuibe, Jude
name: Haavisto, Juuso
name: Harjula, Erkki
name: Ahmad, Ijaz
name: Ylianttila, Mika
Publisher: name: arXiv
Year: 2019
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Multi-Access Edge Computing (MEC) is a key enabling technology for Fifth Generation (5G) mobile networks. MEC facilitates distributed cloud computing capabilities and information technology service environment for applications and services at the edges of mobile networks. This architectural modification serves to reduce congestion, latency, and improve the performance of such edge colocated applications and devices. In this paper, we demonstrate how reactive service migration can be orchestrated for low-power MEC-enabled Internet of Things (IoT) devices. Here, we use open-source Kubernetes as container orchestration system. Our demo is based on traditional client-server system from user equipment (UE) over Long Term Evolution (LTE) to the MEC server. As the use case scenario, we post-process live video received over web real-time communication (WebRTC). Next, we integrate orchestration by Kubernetes with S1 handovers, demonstrating MEC-based software defined network (SDN). Now, edge applications may reactively follow the UE within the radio access network (RAN), expediting low-latency. The collected data is used to analyze the benefits of the low-power MEC-enabled IoT device scheme, in which end-to-end (E2E) latency and power requirements of the UE are improved. We further discuss the challenges of implementing such schemes and future research directions therein.
Characteristics and Large Bulk Density of the C-type Main-Belt Triple Asteroid (93) Minerva
Creators: name: Marchis, F.
name: Vachier, F.
name: Ďurech, J.
name: Enriquez, J. E.
name: Harris, A. W.
name: Dalba, P. A.
name: Berthier, J.
name: Emery, J. P.
name: Bouy, H.
name: Melbourne, J.
name: Stockton, A.
name: Fassnacht, C. D.
name: Dupuy, T. J.
name: Strajnic, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: From a set of adaptive optics (AO) observations collected with the W.M. Keck telescope between August and September 2009, we derived the orbital parameters of the most recently discovered satellites of the large C-type asteroid (93) Minerva. The satellites of Minerva, which are approximately 3 and 4 km in diameter, orbit very close to the primary $\sim$5 & $\sim$8 $\times$ Rp and $\sim$1% & $\sim$2% $\times$ RHill) in a circular manner, sharing common characteristics with most of the triple asteroid systems in the main-belt. Combining these AO observations with lightcurve data collected since 1980 and two stellar occultations in 2010 & 2011, we removed the ambiguity of the pole solution of Minerva's primary and showed that it has an almost regular shape with an equivalent diameter Deq = 154 $\pm$ 6 km in agreement with IRAS observations. The surprisingly high bulk density of 1.75 $\pm$ 0.30 g/cm$\^3$ for this C-type asteroid, suggests that this taxonomic class is composed of asteroids with different compositions, For instance, Minerva could be made of the same material as dry CR, CO, and CV meteorites. We discuss possible scenarios on the origin of the system and conclude that future observations may shine light on the nature and composition of this fifth known triple main-belt asteroid.
description: 35 pages, 9 figures, 5 tables
Global scheme of sweeping cluster algorithm to sample among topological sectors
Creators: name: Yan, Zheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Local constraint is closely related to the gauge field, so constrained models are usually effective low energy descriptions and important in condensed matter physics. On the other hand, local restriction hinders the application of numerical algorithms. In addition to the computational difficulties of the constraints, the various topological sectors which cannot be connected through local operators are also one of the key computational difficulties. Taking quantum dimer model as an example in this paper, we construct a global scheme based on sweeping cluster Monte Carlo method, which can sample among different topological sectors. In principle, this method can be generalized to other models.
description: 9 pages, 11 figures