cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Scalable marginalization of correlated latent variables with applications to learning particle interaction kernels
Creators: name: Gu, Mengyang
name: Liu, Xubo
name: Fang, Xinyi
name: Tang, Sui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: Marginalization of latent variables or nuisance parameters is a fundamental aspect of Bayesian inference and uncertainty quantification. In this work, we focus on scalable marginalization of latent variables in modeling correlated data, such as spatio-temporal or functional observations. We first introduce Gaussian processes (GPs) for modeling correlated data and highlight the computational challenge, where the computational complexity increases cubically fast along with the number of observations. We then review the connection between the state space model and GPs with Mat{é}rn covariance for temporal inputs. The Kalman filter and Rauch-Tung-Striebel smoother were introduced as a scalable marginalization technique for computing the likelihood and making predictions of GPs without approximation. We then introduce recent efforts on extending the scalable marginalization idea to the linear model of coregionalization for multivariate correlated output and spatio-temporal observations. In the final part of this work, we introduce a novel marginalization technique to estimate interaction kernels and forecast particle trajectories. The achievement lies in the sparse representation of covariance function, then applying conjugate gradient for solving the computational challenges and improving predictive accuracy. The computational advances achieved in this work outline a wide range of applications in molecular dynamic simulation, cellular migration, and agent-based models.
description: Typos in Appendix 6.1 are corrected
The status of the Electronic Thesis and Dissertations (ETDs) outputs amongst the institutional repositories in South African universities: Part 1 .
Creators: name: Malapela, Thembani
name: Chisita, Collence
name: Hadebe, Zanele C
Publisher: name: Cadernos BAD
Year: 2020

description: Electronic Thesis and Dissertations (ETD) have been around for more than a decade now and were initiated as a means of collecting, sharing, disseminating, and archiving research outputs from academic institutions. Even before ETDs, institutions of higher learning have been collecting and archiving this type of scholarly outputs manually. While most thesis remain unpublished, this knowledge produced is almost constant as it is (in most universities) a requirement when research students graduate. In sub-Saharan Africa, it has been established that there is low research output when compared to the rest of the world. Yet, there are many universities in Africa who produce post-graduate students who submit ETDs and these are not visible or most never turn into research papers. As in the rest of this world, African universities have established institutional repositories in academic libraries to help preserve the institution’s intellectual property and to increase the institution’s visibility (global rankings) and prestige. It is uncommon to have either a dedicated ETD collection in an institutional repository or a stand-alone ETD repository. This purpose of this study was to establish the research output and visibility of scholarly research produced by the higher education institutions in South Africa and specifically focus on the ETDs. This study has both qualitative and employs pre-dominantly the desk-study and intensive literature review. The study discovered that all 23 South African universities have ETD collections and three have dedicated ETD repositories. The rate of deposit does not match the graduation levels and the visibility of these ETD require an institutional priority. The paper concludes by proposing an in-depth survey to understand the emerging issues from this present study. This is the first part of the 2 part study, the second part interviews the ETD managers or repository managers to closely verify the issues raised or discovered in the first part.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
Adversarial Attacks on Machine Learning Systems for High-Frequency Trading
Creators: name: Goldblum, Micah
name: Schwarzschild, Avi
name: Patel, Ankit B.
name: Goldstein, Tom
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Algorithmic trading systems are often completely automated, and deep learning is increasingly receiving attention in this domain. Nonetheless, little is known about the robustness properties of these models. We study valuation models for algorithmic trading from the perspective of adversarial machine learning. We introduce new attacks specific to this domain with size constraints that minimize attack costs. We further discuss how these attacks can be used as an analysis tool to study and evaluate the robustness properties of financial models. Finally, we investigate the feasibility of realistic adversarial attacks in which an adversarial trader fools automated trading systems into making inaccurate predictions.
description: ACM International Conference on AI in Finance (ICAIF) 2021
Multifractal analysis of homological growth rates for hyperbolic surfaces
Creators: name: Jaerisch, Johannes
name: Takahasi, Hiroki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We perform a multifractal analysis of homological growth rates of oriented geodesics on hyperbolic surfaces. Our main result provides a formula for the Hausdorff dimension of level sets of prescribed growth rates in terms of a generalized Poincaré exponent of the Fuchsian group. We employ symbolic dynamics developed by Bowen and Series, ergodic theory and thermodynamic formalism to prove the analyticity of the dimension spectrum.
description: 32 pages, 4 figures. former title: Multifractal analysis and large deviations of homological growth rates for hyperbolic surfaces
Mapping of ETDs in ProQuest Dissertations and Theses (PQDT) Global database (2014-2018)
Creators: name: Lamba, Manika
name: Madhusudhan, Margam
Publisher: name: Cadernos BAD
Year: 2020

description: The information explosion in the form of ETDs poses the challenge of management and extraction of appropriate knowledge for decision making by information practitioners. This study presents a solution to the problem by applying topic mining and prediction modeling to 441 full-text ETDs extracted from the PQDT Global database during 2014-2018 in the field of library science using the RapidMiner platform. This study was divided into three phases. In the first phase, metadata analysis of the ETDs retrieved from the database was performed to identify the association of various entities such as universities, departments, types of degrees, and geographical areas with the ETDs. In the second phase, 8 core topics namelychildren literature; academic library; information retrieval; archival science; user study; digital library; library leadership; and digital communication were determined using latent dirichlet allocation (LDA) and each ETD was then annotated with the modeled topic. Lastly, a prediction model using the Support Vector Machine (SVM) was created to classify the untagged ETDs going to be submitted in the database under the 8 modeled topics ( a to h ).
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
Central limit theorem over non-linear functionals of empirical measures with applications to the mean-field fluctuation of interacting particle systems
Creators: name: Jourdain, Benjamin
name: Tse, Alvin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H30, 60H35, 65C30, 65C35, 35R06

description: In this work, a generalised version of the central limit theorem is proposed for nonlinear functionals of the empirical measure of i.i.d. random variables, provided that the functional satisfies some regularity assumptions for the associated linear functional derivative. This generalisation can be applied to Monte-Carlo methods, even when there is a nonlinear dependence on the measure component. We use this result to deal with the contribution of the initialisation in the convergence of the fluctuations between the empirical measure of interacting diffusion and their mean-field limiting measure (as the number of particles goes to infinity), when the dependence on measure is nonlinear. A complementary contribution related to the time evolution is treated using the master equation, a parabolic PDE involving L-derivatives with respect to the measure component, which is a stronger notion of derivative that is nonetheless related to the linear functional derivative.
Tripartite Cooperation in Assigning ETDs with DOIs - A Practical Experience of National Taiwan Normal University Library
Creators: name: Yu, Chiu-Yun
name: Ke, Hao-Ren
Publisher: name: Cadernos BAD
Year: 2020

description: National Taiwan Normal University (NTNU) Library was trying to engage two different vendors to cooperate and set up the Digital Object Identifier (DOI) to improve international visibilities of students’ ETDs. This Practical Experience aims to share a valuable lesson through tripartite cooperation, and firmly believe other institutions can benefit from our experience to save time and effort spent on the launch of such cooperation.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
Tesis digitales en Perú: retos y oportunidades
Creators: name: Huaroto, Libio
name: Saravia, Miguel
Publisher: name: Cadernos BAD
Year: 2020

description: Los programas de tesis digitales en Perú se iniciaron el 2002, Cybertesis fue la primera plataforma adoptada, actualmente DSpace es el software de uso oficial. En Junio de 2013 se publicó la Ley 30035 que obliga a las entidades públicas implementar un repositorio digital de acceso abierto, así mismo, crea el Portal “ALICIA”. En Setiembre de 2016 entró en funcionamiento el Portal “RENATI”, plataforma que difunde las tesis de entidades peruanas de educación superior. Actualmente ALICIA tiene 194 repositorios y 271,000 publicaciones en acceso abierto. Por su parte RENATI tiene 170 repositorios de tesis y 218,397 documentos de acceso abierto y restringido. Las políticas institucionales y normativas de gobierno han promovido un crecimiento acelerado de los repositorios, en especial de las tesis, de igual forma, han generado nuevos servicios en la mejora de la calidad de las tesis.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
PhD training on Open Science in French universities
Creators: name: Schöpfel, Joachim
name: Prost, Hélène
name: Jacquemin, Bernard
name: Kergosien, Eric
Publisher: name: Cadernos BAD
Year: 2020

description: The development of open science requires a cultural change in academic institutions, including the acquisition of new knowledge and skills in fields like open access publishing, research data sharing and citizen science. The paper presents results from a survey on PhD training programs related to open science in ten highly ranked and research-intensive French universities. Based on the discussion of the empirical survey results (content, format, discipline, etc.), the paper establishes a list of some recommendations that may be helpful for the assessment of existing programs and for the development and implementation of new programs.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
UBC Club and Constituency Survey : Alma Mater Society (AMS) Support
Creators: name: Benna, Holly
name: Cowan, Anna
name: Custeau, Alexandra
name: Smith, Monica
name: Stancer, Dani
Publisher: name: The University of British Columbia
Year: 2020

description: The research question we aim to answer through this survey is “To what extent do clubs and constituencies feel they are provided with adequate support from the AMS?” Our project is seeking to measure the extent clubs and constituencies represented by the AMS feel supported and heard by them, and by surveying elected representatives, we will be able to conclude if the AMS is doing enough to effectively support student groups. Using the data collected through this survey, the AMS will be able to adjust their policies in order to provide more satisfactory support to UBC clubs and constituencies. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Additional file 1 of Integrative microRNAome analysis of skeletal muscle of Colossoma macropomum (tambaqui), Piaractus mesopotamicus (pacu), and the hybrid tambacu, based on next-generation sequencing data
Creators: name: Fantinatti, Bruno E. A.
name: Perez, Erika S.
name: Zanella, Bruna T. T.
name: Jéssica S. Valente
name: Tassiana G. De Paula
name: Mareco, Edson A.
name: Robson F. Carvalho
name: Piazza, Silvano
name: Denti, Michela A.
name: Dal-Pai-Silva, Maeli
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Read number information. Read number throughout filtering process. Data showing the decrease number of reads according to filtering steps performed.
Delays, connection topology, and synchronization of coupled chaotic maps
Creators: name: Atay, Fatihcan M.
name: Jost, Jürgen
name: Wende, Andreas
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We consider networks of coupled maps where the connections between units involve time delays. We show that, similar to the undelayed case, the synchronization of the network depends on the connection topology, characterized by the spectrum of the graph Laplacian. Consequently, scale-free and random networks are capable of synchronizing despite the delayed flow of information, whereas regular networks with nearest-neighbor connections and their small-world variants generally exhibit poor synchronization. On the other hand, connection delays can actually be conducive to synchronization, so that it is possible for the delayed system to synchronize where the undelayed system does not. Furthermore, the delays determine the synchronized dynamics, leading to the emergence of a wide range of new collective behavior which the individual units are incapable of producing in isolation.
description: 5 pages, 5 postscript figures. V2: minor textual amendments
Additional file 1 of The health-related determinants of eating pattern of high school athletes in Goiás, Brazil
Creators: name: Noll, Matias
name: Rodrigues, Ana Paula Santos
name: Silveira, Erika Aparecida
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1 Table S1. Description of outcomes and determinants, and measures classification used in this study.
Entropy of black holes with arbitrary shapes in loop quantum gravity
Creators: name: Song, Shupeng
name: Li, Haida
name: Ma, Yongge
name: Zhang, Cong
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The quasi-local notion of an isolated horizon is employed to study the entropy of black holes without any particular symmetry in loop quantum gravity. The idea of characterizing the shape of a horizon by a sequence of local areas is successfully applied in the scheme to calculate the entropy by the $SO(1,1)$ BF boundary theory matching loop quantum gravity in the bulk. The generating function for calculating the microscopical degrees of freedom of a given isolated horizon is obtained. Numerical computations of small black holes indicate a new entropy formula containing the quantum correction related to the partition of the horizon. Further evidence shows that, for a given horizon area, the entropy decreases as a black hole deviates from the spherically symmetric one, and the entropy formula is also well suitable for big black holes.
description: 9 pages, 2 figures, 2 tables
Lithium in LMC carbon stars
Creators: name: Hatzidimitriou, D.
name: Morgan, D. H.
name: Cannon, R. D.
name: Croke, B. F. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Nineteen carbon stars that show lithium enrichment in their atmospheres have been discovered among a sample of 674 carbon stars in the Large Magellanic Cloud. Six of the Li-rich carbon stars are of J-type, i.e. with strong 13C isotopic features. No super-Li-rich carbon stars were found. The incidence of lithium enrichment among carbon stars in the LMC is much rarer than in the Galaxy, and about five times more frequent among J-type than among N-type carbon stars. The bolometric magnitudes of the Li-rich carbon stars range between -3.3 and -5.7. Existing models of Li-enrichment via the hot bottom burning process fail to account for all of the observed properties of the Li-enriched stars studied here.
description: 10 pages, 8 figures, Latex; in press, MNRAS
Maximum Mean Discrepancy on Exponential Windows for Online Change Detection
Creators: name: Kalinke, Florian
name: Heyden, Marco
name: Gntuni, Georg
name: Fouché, Edouard
name: Böhm, Klemens
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.6; H.1.1

description: Detecting changes is of fundamental importance when analyzing data streams and has many applications, e.g., in predictive maintenance, fraud detection, or medicine. A principled approach to detect changes is to compare the distributions of observations within the stream to each other via hypothesis testing. Maximum mean discrepancy (MMD), a (semi-)metric on the space of probability distributions, provides powerful non-parametric two-sample tests on kernel-enriched domains. In particular, MMD is able to detect any disparity between distributions under mild conditions. However, classical MMD estimators suffer from a quadratic runtime complexity, which renders their direct use for change detection in data streams impractical. In this article, we propose a new change detection algorithm, called Maximum Mean Discrepancy on Exponential Windows (MMDEW), that combines the benefits of MMD with an efficient computation based on exponential windows. We prove that MMDEW enjoys polylogarithmic runtime and logarithmic memory complexity and show empirically that it outperforms the state of the art on benchmark data streams.
description: Published in TMLR 02/25
Accesses to ETDs in Languages Other Than Portuguese @PUC-Rio: a Different View
Creators: name: Pavani, Ana M B
Publisher: name: Cadernos BAD
Year: 2020

description: Portuguese is among the 10 world languages with the most native speakers; it is the third Western language in the ranking. At the same time, it is neither the lingua franca of science and technology, nor of the Internet. In Brazil, in the last decade, many institutions started allowing ETDs to be published in languages other than Portuguese; English is the most used. This work addresses characteristics of the ETD collection of a university in Brazil in terms of the languages of the works. An overview of the numbers/percentages of ETDs in Portuguese and other languages is presented in the time frame 2008-2018. Some aspects of the accesses are discusssed too, but they are from 2016 on since before this year the numbers of ETDs in English were very low. The numbers of ETDs in foreign languages – numbers of institutions and of works – in other Brazilian institutions that contribute to the Brazilian national consortium are presented and discussed too.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
Interpolating Action for Strings and Membranes - a Study of Symmetries in the Constrained Hamiltonian Approach
Creators: name: Banerjee, Rabin
name: Mukherjee, Pradip
name: Saha, Anirban
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A master action for bosonic strings and membranes, interpolating between the Nambu--Goto and Polyakov formalisms, is discussed. The role of the gauge symmetries vis-à-vis reparametrization symmetries of the various actions is analyzed by a constrained Hamiltonian approach. This analysis reveals the difference between strings and higher branes, which is essentially tied to a degree of freedom count. The cosmological term for membranes follows naturally in this scheme. The conncetion of our aproach with the Arnowitt--Deser--Misner representation in general relativity is illuminated.
description: LaTex, 23 pages; discussion on ADM representation included and new references added
Search for Narrow t-tbar Resonances in ppbar Collisions at \root{s} = 1.8 TeV
Creators: name: Abazov, V. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for narrow resonances that decay into t-tbar pairs has been performed using 130 pb^{-1} of data in the lepton+jets channel collected in p-pbar collisions at \sqrt{s} = 1.8 TeV. There is no significant deviation observed from the standard model, and upper limits at the 95 % confidence level on the product of the production cross section and branching fraction to t-tbar are presented for narrow resonances as a function of the resonance mass M_X. These limits are used to exclude the existence of a leptophobic topcolor particle with mass M_X < 560 GeV/c^2 and width Γ_X = 0.012 M_X.
description: 7 pages, 2 figures, 2 tables
Astrapia rothschildi Foerster 1906
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Paradisaeidae
Astrapia
Astrapia rothschildi

description: Astrapia rothschildi Foerster
Astrapia rothschildi Foerster (in Foerster and Rothschild), 1906: 2 (Mountains of German New Guinea).
Now Astrapia rothschildi Foerster, 1906. See Hartert, 1919: 129; Mayr, 1962d: 193; Gilliard, 1969: 161–163; Coates, 1990: 456–457; Cracraft, 1992: 23; Frith and Beehler, 1998: 273–276; and Frith and Frith, 2009b: 468–469.
LECTOTYPE: AMNH 678080, adult male, collected in the Rawlinson Mountains, 800– 1000 m, 06.32S, 147.17E (Frith and Beehler, 1998: 570), Huon Peninsula, Morobe Province, Papua New Guinea (formerly German New Guinea), in December 1905, by Carl Wahnes. From the Rothschild Collection.
COMMENTS: In the original description, Foerster described male and female but did not designate a type. Hartert (1919: 129) listed the male, collected in the Rawlinson Mountains in December 1905 by Wahnes as the type, thereby designating it the lectotype. Only one other specimen collected before the 1906 publication of the name came to AMNH, paralectotype AMNH 678081, female, collected in the Rawlinson Mountains in December 1905 by Wahnes.
description: Published as part of Lecroy, Mary, 2014, Type Specimens Of Birds In The American Museum Of Natural History Part 12. Passeriformes: Ploceidae, Sturnidae, Buphagidae, Oriolidae, Dicruridae, Callaeidae, Grallinidae, Corcoracidae, Artamidae, Cracticidae, Ptilonorhynchidae, Cnemophilidae, Paradisaeidae, And Corvidae, pp. 1-165 in Bulletin of the American Museum of Natural History 2014 (393) on page 103, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
High-precision quantum algorithms for partial differential equations
Creators: name: Childs, Andrew M.
name: Liu, Jin-Peng
name: Ostrander, Aaron
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Quantum computers can produce a quantum encoding of the solution of a system of differential equations exponentially faster than a classical algorithm can produce an explicit description. However, while high-precision quantum algorithms for linear ordinary differential equations are well established, the best previous quantum algorithms for linear partial differential equations (PDEs) have complexity $\mathrm{poly}(1/ε)$, where $ε$ is the error tolerance. By developing quantum algorithms based on adaptive-order finite difference methods and spectral methods, we improve the complexity of quantum algorithms for linear PDEs to be $\mathrm{poly}(d, \log(1/ε))$, where $d$ is the spatial dimension. Our algorithms apply high-precision quantum linear system algorithms to systems whose condition numbers and approximation errors we bound. We develop a finite difference algorithm for the Poisson equation and a spectral algorithm for more general second-order elliptic equations.
description: 40 pages. Corrected the dependence on the dimension of the finite difference method
SALAD: Source-free Active Label-Agnostic Domain Adaptation for Classification, Segmentation and Detection
Creators: name: Kothandaraman, Divya
name: Shekhar, Sumit
name: Sancheti, Abhilasha
name: Ghuhan, Manoj
name: Shukla, Tripti
name: Manocha, Dinesh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We present a novel method, SALAD, for the challenging vision task of adapting a pre-trained "source" domain network to a "target" domain, with a small budget for annotation in the "target" domain and a shift in the label space. Further, the task assumes that the source data is not available for adaptation, due to privacy concerns or otherwise. We postulate that such systems need to jointly optimize the dual task of (i) selecting fixed number of samples from the target domain for annotation and (ii) transfer of knowledge from the pre-trained network to the target domain. To do this, SALAD consists of a novel Guided Attention Transfer Network (GATN) and an active learning function, HAL. The GATN enables feature distillation from pre-trained network to the target network, complemented with the target samples mined by HAL using transfer-ability and uncertainty criteria. SALAD has three key benefits: (i) it is task-agnostic, and can be applied across various visual tasks such as classification, segmentation and detection; (ii) it can handle shifts in output label space from the pre-trained source network to the target domain; (iii) it does not require access to source data for adaptation. We conduct extensive experiments across 3 visual tasks, viz. digits classification (MNIST, SVHN, VISDA), synthetic (GTA5) to real (CityScapes) image segmentation, and document layout detection (PubLayNet to DSSE). We show that our source-free approach, SALAD, results in an improvement of 0.5%-31.3%(across datasets and tasks) over prior adaptation methods that assume access to large amounts of annotated source data for adaptation.
Relations for quadratic Hodge integrals via stable maps
Creators: name: Politopoulos, Georgios
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Following Faber-Pandharipande, we use the virtual localization formula for the moduli space of stable maps to $ \mathbb{P}^1 $ to compute relations between Hodge integrals. We prove that certain generating series of these integrals are polynomials.
description: 6 pages. Comments very welcome!
Additional file 8 of Timing of complementary feeding is associated with gut microbiota diversity and composition and short chain fatty acid concentrations over the first year of life
Creators: name: Differding, Moira K.
name: Benjamin-Neelon, Sara E.
name: Hoyo, Cathrine
name: Østbye, Truls
name: Mueller, Noel T.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 8: Table S4. Unadjusted and multivariable-adjusted linear models examining the association of early introduction of complementary foods with the concentration of fecal short-chain fatty acids (in μmol/g) at 3 months of age and 12 months of age, with adjustment for additional covariates.
Digital Archive on Agricultural Theses and Journals (DAATJ) of Bangladesh: An overview
Creators: name: Bhuiyan, Mohammad Shakaought Hossain
Publisher: name: Cadernos BAD
Year: 2020

description: The purpose of this paper is to investigate the current status, potential benefits and challenges of digital archiving of agricultural theses and journals in Bangladesh with a focus on the lesson learnt from a World Bank financed project titled as ‘Digital Archive on Agricultural Theses and Journals of Bangladesh’. That project worked on the three Bangladeshi Agricultural Universities for five years with an aim to convert all the printed Master of Science (MS) and Doctoral theses to digital format. Following a qualitative methodology, this study was conducted through an intensive review of project documents as well as consultation with educators and students. Results of the study reveals the prospect and challenges of establishing ETD repositories for agricultural universities in Bangladesh. The analysis indicate the value of project experiences for introducing a model of ETD repositories. With a policy implication, the findings reveals that academicians, researchers, librarians, students, policy makers, extension providers and farmers would get immense benefit from such archive. Observing the success, it is recommended to adopt similar model for other agricultural universities in Bangladesh. The findings may be are of values for establishing ETDs in other developing countries for disseminating knowledge
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
Summaries of Group Discussion
Creators: name: Chadha, G.K.
name: Suryanarayana, M.H.
name: Singh, Gurdev
name: Chadha, G.K.
name: Suryanarayana, M.H.
name: Singh, Gurdev
Publisher: name: Unknown
Year: 1995
Subjects: Agricultural and Food Policy
Agricultural Finance
International Relations/Trade

description: Agricultural Production Relations in the Context of the New Agricultural Technology; Prices, Marketing including Agro-Processing, and International Trade; Agricultural Finance in the Context of Technology-led Development of Agriculture
Is Galaxy Distribution Non-extensive and Non-Gaussian?
Creators: name: Nakamichi, Akika
name: Morikawa, Masahiro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Self gravitating systems (SGS) in the Universe are generally thought to be non-extensive, and often show long-tails in various distribution functions. In principle, these non-Boltzmann properties are naturally expected from the peculiar property of gravity, long-range and unshielded. Therefore the ordinary Boltzmann statistical mechanics would not be applicable for these self gravitating systems (SGS) in its naive form. In order to step further, we quantitatively investigate the above two properties, non-extensivity and long-tails, by explicitly introducing various models of statistical mechanics. We use the data of CfA II South redshift survey and apply the count-in-cell method. We study four statistical mechanics, (1) Boltzmann, (2) Fractal, (3) Rényi, and (4) Tsallis, and use Akaike information criteria (AIC) for the fair comparison.
description: 19 pages, 9 figures
Using metadata record graphs to understand controlled vocabulary and keyword usage for subject representation in the UNT theses and dissertations collection
Creators: name: Phillips, Mark E.
name: Tarver, Hannah
name: Zavalina, Oksana L.
Publisher: name: Cadernos BAD
Year: 2020
Subjects: Metadata Record Graphs
metadata
metadata quality
metadata analysis
Meta

description: An important function of metadata for electronic theses and dissertations (ETDs) is supporting the discovery of related documents through linking of data values in the fields of metadata records. While benefits of the ETD format allow for full-text searching, metadata is still an important and necessary component of the global ETD infrastructure because it is often not possible to share the full documents in aggregations such as the Global ETD Search for the Networked Digital Library of Theses and Dissertations. The metadata field that has the most potential to assist users in discovery is the subject field used to represent what a resource is about. Over the years there has been much discussion of the value of author-generated keywords versus adding subject terms from controlled vocabularies by information professionals as documents are submitted to the University repository. This research seeks to explore this problem with the help of network analysis method not used for such analyzes before by building and analyzing metadata record graphs for the University of North Texas theses and dissertations. This paper reports on the characteristics of keyword-based and controlled-vocabulary-based metadata record networks and discussions insights that can be gained from this approach to metadata quality analysis. This research seeks to explore this problem with the help of network analysis method not used for such analyzes before by building and analyzing metadata record graphs for the University of North Texas theses and dissertations. This paper reports on the characteristics of keyword-based and controlled-vocabulary-based metadata record networks and discussions insights that can be gained from this approach to metadata quality analysis. This research seeks to explore this problem with the help of network analysis method not used for such analyzes before by building and analyzing metadata record graphs for the University of North Texas theses and dissertations. This paper reports on the characteristics of keyword-based and controlled-vocabulary-based metadata record networks and discussions insights that can be gained from this approach to metadata quality analysis.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
Transition to the classical regime in quantum mechanics on a lattice and implications of discontinuous space
Creators: name: Kabernik, Oleg
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well known that, due to the uncertainty principle, the Planck constant sets a resolution boundary in phase space and the resulting trade-off in resolution between incompatible measurements has been thoroughly investigated. It is also known that, in the classical regime, sufficiently coarse measurements of position and momentum can simultaneously be determined. However, the picture of how the uncertainty principle gradually disappears as we transition from the quantum to the classical regime is not so vivid. In the present work we clarify this picture by studying the associated probabilities that quantify the effects of the uncertainty principle in the framework of finite-dimensional quantum mechanics on a lattice. We also study how these probabilities are perturbed by the granularity of the lattice and show that they can signal the discontinuity of the underlying space.
description: 4 figures, 7 pages main text + appendices
A Multi-Faceted Multi-Stakeholder Approach for Increased Visibility of ETDs in Zambia
Creators: name: Phiri, Lighton
Publisher: name: Cadernos BAD
Year: 2020

description: The University of Zambia has had a functional Institutional Repository (IR) since 2012. However, while Electronic Theses and Dissertations (ETD) are routinely deposited into the IR, the ingestion is not timely, with significantly large time gaps existing between ETD submission dates and ETD IR ingestion dates. We propose a multi-faceted approach that is aimed at providing a potentially viable solution to the problems through the use of effective workflows and automatic classification of IR objects. Preliminary results demonstrate the potential of the proposed approach is feasible. It is anticipated that the proposed approach will facilitate the implementation of a National ETD portal for storing up-to-date and consistent metadata records from Higher Education Institutions across Zambia.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
The divergence of Mock Fourier series for spectral measures
Creators: name: Pan, Wu-Yi
name: Ai, Wen-Hui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 28A80, 42A20, 42B05

description: In this paper, we study divergence properties of Fourier series on Cantor-type fractal measure, also called Mock Fourier series. We give a sufficient condition under which the Mock Fourier series for doubling spectral measure is divergent on non-zero set. In particularly, there exists an example of the quarter Cantor measure whose Mock Fourier sums is not almost everywhere convergent.
The magnetic field along the jets of NGC 4258 as deduced from high frequency radio observations
Creators: name: Krause, M.
name: L"ohr, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 2.4" resolution, high sensitivity radio continuum observations of the nearby spiral galaxy NGC 4258 in total intensity and linear polarization obtained with the Very Large Array at 3.6 cm (8.44 GHz). The radio emission along the northern jet and the center of the galaxy is polarized and allows investigation of the magnetic field. Assuming energy-equipartition between the magnetic field and the relativistic particles and distinguishing between (1) a relativistic electron-proton jet and (2) a relativistic electron-positron jet, we obtain average magnetic field strengths of about (1) 310\muG and (2) 90\muG. The rotation measure is determined to range from -400 to -800 rad/m^2 in the northern jet. Correcting the observed E-vectors of polarized intensity for Faraday rotation, the magnetic field along the jet turns out to be orientated mainly along the jet axis. An observed tilt with respect to the jet axis may indicate also a toroidal magnetic field component or a slightly helical magnetic field around the northern jet.
description: 9 pages with 9 figures. Accepted for publication in A&A
Estimating Uncertainty Intervals from Collaborating Networks
Creators: name: Zhou, Tianhui
name: Li, Yitong
name: Wu, Yuan
name: Carlson, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Effective decision making requires understanding the uncertainty inherent in a prediction. In regression, this uncertainty can be estimated by a variety of methods; however, many of these methods are laborious to tune, generate overconfident uncertainty intervals, or lack sharpness (give imprecise intervals). We address these challenges by proposing a novel method to capture predictive distributions in regression by defining two neural networks with two distinct loss functions. Specifically, one network approximates the cumulative distribution function, and the second network approximates its inverse. We refer to this method as Collaborating Networks (CN). Theoretical analysis demonstrates that a fixed point of the optimization is at the idealized solution, and that the method is asymptotically consistent to the ground truth distribution. Empirically, learning is straightforward and robust. We benchmark CN against several common approaches on two synthetic and six real-world datasets, including forecasting A1c values in diabetic patients from electronic health records, where uncertainty is critical. In the synthetic data, the proposed approach essentially matches ground truth. In the real-world datasets, CN improves results on many performance metrics, including log-likelihood estimates, mean absolute errors, coverage estimates, and prediction interval widths.
description: This paper has been accepted for publication by the Journal of Machine learning Research(JMLR)
Additional file 1 of A critical discourse analysis of adolescent fertility in Zambia: a postcolonial perspective
Creators: name: Munakampe, Margarate N.
name: Michelo, Charles
name: Zulu, Joseph M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 1. Discussion guide for adolescents.
Digital Initiatives at Dhaka University Library
Creators: name: Murshed, S. M. Masum
Publisher: name: Cadernos BAD
Year: 2020

description: University of Dhaka is the largest and the oldest public university in Bangladesh. The university has more than forty-two thousand students and over two thousand academic staff. The university library1 is the heart of the academic activities on campus serving a big number of students, teachers and researchers. The university library holds about 0.6 million copies of books and about 30 thousand of rare manuscripts, microfilms, microfiche and other records of historical importance. It is the largest library in the country. The library maintains an institutional repository and online archives of digitized contents for the university community and others. The goal of such initiatives is to increase the visibility, use and impact of the university's research publications by offering them to use through the university's own digital archival system. The repository consists of full-text materials produced in the university such as theses, internship reports, journal articles, conference proceedings and research materials produced by all the departments, Institutes, research centers and units of the university. DSpace is used for this repository services. Since June 2012, the repository has been archiving research articles and most importantly all these research publications are of open access allowing university community to have free access to them. Its unique feature is that academic and researchers can also archive their research and other publications in this repository platform. Since this is an open access platform for the university community who can easily get information and relevant research articles from this platform, it is particularly popular among new and young scholars. Additionally, the university library preserves its own digitized newspapers, manuscripts and rare materials in a recently created archival system. This is the first of its kind initiative which has an outstanding impact on access and use of digitized resources in Bangladesh. This poster provides an overview of Dhaka University Library’s institutional repository and archival services currently available. It will also highlight future plans and programs for better library management and services besides increasing access to archival contents for the university community.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
A Fourier representation of kernel Stein discrepancy with application to Goodness-of-Fit tests for measures on infinite dimensional Hilbert spaces
Creators: name: Wynne, George
name: Kasprzak, Mikołaj
name: Duncan, Andrew B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Kernel Stein discrepancy (KSD) is a widely used kernel-based measure of discrepancy between probability measures. It is often employed in the scenario where a user has a collection of samples from a candidate probability measure and wishes to compare them against a specified target probability measure. KSD has been employed in a range of settings including goodness-of-fit testing, parametric inference, MCMC output assessment and generative modelling. However, so far the method has been restricted to finite-dimensional data. We provide the first analysis of KSD in the generality of data lying in a separable Hilbert space, for example functional data. The main result is a novel Fourier representation of KSD obtained by combining the theory of measure equations with kernel methods. This allows us to prove that KSD can separate measures and thus is valid to use in practice. Additionally, our results improve the interpretability of KSD by decoupling the effect of the kernel and Stein operator. We demonstrate the efficacy of the proposed methodology by performing goodness-of-fit tests for various Gaussian and non-Gaussian functional models in a number of synthetic data experiments.
description: To appear in Bernoulli
Global visibility and exposure to drive the quality of doctoral education
Creators: name: Moskaleva, Olga
name: Kettler, Meinhard
Publisher: name: Cadernos BAD
Year: 2020

description: Universities worldwide are expanding how they showcase electronic theses and dissertations and their authors. One way this is accomplished is video recordings of “3 Minute Thesis” competitions. Saint Petersburg State University goes one step further and documents the full defense of their dissertations on video and makes the recording openly available on the official university site together with full texts and opponents reviews. This is one part of their strategy to provide more transparency with the goal of enhancing the overall quality of dissertations. The second part of this strategy is the Library of Saint Petersburg State University working with ProQuest to disseminate dissertations to a global audience through ProQuest Dissertations and Theses (PQDT) database.
description: Cadernos BAD, N.º 1 (2019): ETD 2019: Fruits of Knowledge
Coordinate-free Circumnavigation of a Moving Target via a PD-like Controller
Creators: name: Dong, Fei
name: You, Keyou
name: Xie, Lihua
name: Hu, Qinglei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper proposes a coordinate-free controller for a nonholonomic vehicle to circumnavigate a fully-actuated moving target by using range-only measurements. If the range rate is available, our Proportional Derivative (PD)-like controller has a simple structure as the standard PD controller, except the design of an additive constant bias and a saturation function in the error feedback. We show that if the target is stationary, the vehicle asymptotically encloses the target with a predefined radius at an exponential convergence rate, i.e., an exact circumnavigation pattern can be completed. For a moving target, the circumnavigation error converges to a small region whose size is shown proportional to the maneuverability of the target, e.g., the maximum linear speed and acceleration. Moreover, we design a second-order sliding mode (SOSM) filter to estimate the range rate and show that the SOSM filter can recover the range rate in a finite time. Finally, the effectiveness and advantages of our controller are validated via both numerical simulations and real experiments.
description: 13 pages,17 figures