K. Rusek

A Modular Metadata Extraction System for Born-Digital Articles

We present a comprehensive system for extracting metadata from scholarly articles. In our approach the entire document is inspected, including headers and footers of all the pages as well as bibliographic references. The system is based on a modular workflow which allows for evaluation, unit testing and replacement of individual components. The workflow is optimized towards processing of born-digital documents, but may accept scanned document images as well. The machine-learning approaches we have chosen for solving individual tasks increase the ability to adapt to new document layouts and formats. The evaluation tests we have performed showed good results of the individual implementations and the entire metadata extraction process.

GROTOAP: ground truth for open access publications

The field of digital document content analysis includes many important tasks, for example page segmentation or zone classification. It is impossible to build effective solutions for such problems and evaluate their performance without a reliable test set, that contains both input documents and expected results of segmentation and classification. In this paper we present GROTOAP --- a test set useful for training and performance evaluation of page segmentation and zone classification tasks. The test set contains input articles in a digital form and corresponding ground truth files. All input documents included in the test set have been selected from DOAJ database, which indexes articles published under CC-BY license. The whole test set is available under the same license.

XXXIII Mazurian Lakes Conference on Physics: Frontiers in Nuclear Physics, Piaski, Poland, 6-13 September 2015

The 34th Mazurian Lakes Conference on Physics was held in Piaski, Poland from 6–13 September 2015. The title adopted lately for the Mazurian meetings, “Frontiers in Nuclear Physics,” allowed for a broader scope of the conference, which was dedicated mostly to nuclear structure and astrophysics, nuclear reactions, physics of super heavy nuclei, as well as to different aspects of nuclear science applications. The Mazurian meetings date back to 1968 and are now organized every two years by the University of Warsaw, the National Centre for Nuclear Research, and the ProPhysica Foundation. The 2015 Mazurian Lakes Conference was chaired by Krzysztof Rusek (HIL Warsaw) and Krzysztof Rykaczewski (vice-chair, ORNL Oak Ridge). The conference opened with a talk given by Professor W. Kutschera of the University of Vienna presenting his explorations of the world aided by the accelerator mass spectrometry technique. The presentation of theoretical frontiers in low-energy nuclear physics was followed by the recent highlights as well as planned developments and upgrades of large-scale facilities providing access to international collaborations. The exciting results from RIKEN (Japan) and ISOLDE-CERN (Switzerland/France) were reviewed, together with the status of new projects and constructions at GANIL (France), ISOLDE, ELI-NP (Romania), ECOS-LINCE (Spain), and FAIR (Germany). The presentation of studies at underground laboratories was the starting point for the nuclear astrophysics sessions. Theory of core-collapse supernovae, compact binary mergers, neutron stars, and the sensitivity of r-process path to nuclear physics input were discussed. New experimental results on very neutronrich nuclei relevant to r-process analysis and obtained using decay spectroscopy methods at RIKEN, ORNL, ANL, ISOLDE, TRIUMF, GSI, and Jyväskylä were followed by theoretical modeling. In particular, new studies of beta-delayed neutron emission process were presented. Fission process and studies of fission products were among the main subjects of the 2015 meeting. The presentations included decay-heat determination for nuclear fuel cycle analysis and nuclear safeguards. These measurements as well as biology studies using nuclear NMR, also presented at the Mazurian meeting, belong to important contributions of nuclear physics to the societal applications. Nuclear reaction studies with radioactive beams contributing to our understanding of nuclear shell structure were the leading topic of several talks. “In-beam” studies with postaccelerated radioactive ions included several Coulomb excitation measurements, from magic Z = 20 Ca nuclei, through deformed region around mass 100, to isotopes above the magic Z = 82 Pb. The legacy of Tomek Czosnyka of HIL, the author of GOSIA code used to help interpreting XXXIII Mazurian Lakes Conference on Physics: Frontiers in Nuclear Physics, Piaski, Poland, 6–13 September 2015

Nuclear deformation of 20Ne from 20Ne(105 MeV)+208Pb scattering

We have measured differential cross section for quasielastic scattering of {sup 20}Ne+{sup 208}Pb at a lab energy of 105 MeV. The data are analyzed by a rotational-model coupled-channels calculation including the 0{sup +} ground state, 2{sup +} and 4{sup +} states of {sup 20}Ne.