pinecone/core-2020-05-10-deduplication huggingface dataset:
Comparative analysis of relevance feedback methods based on two user studies.

Rigorous analysis of user interest in web documents is essential for the development of recommender systems. This paper investigates the relationship between the implicit parameters and user explicit rating during their search and reading tasks. The objective of this paper is therefore three-fold: firstly, the paper identifies the implicit parameters which are statistically correlated with the user explicit rating through user study 1. These parameters are used to develop a predictive model which can be used to represent users? perceived relevance of documents. Secondly, it investigates the reliability and validity of the predictive model by comparing it with eye gaze during a reading task through user study 2. Our findings suggest that there is no significant difference between the predictive model based on implicit indicators and eye gaze within the context examined. Thirdly, we measured the consistency of user explicit rating in both studies and found significant consistency in user explicit rating of document relevance and interest level which further validates the predictive model. We envisage that the results presented in this paper can help to develop recommender and personalised systems for recommending documents to users based on their previous interaction with the system
Measuring the Higgs-bottom coupling in weak boson fusion

We study Higgs production through weak boson fusion with subsequent decay to
bottom quarks. By combining jet substructure techniques and matrix element
methods in different limits we motivate this channel as a probe of the
bottom-Yukawa interactions in the boosted regime. In particular we ameliorate
the "no-go" results of cut-and-count analyses in this channel. After applying a
data-driven reconstruction approach we find that the Higgs-bottom coupling can
be limited to $0.82 < y_b/y_b^{\text{SM}} <1.14$ with $600~\mathrm{fb}^{-1}$.Comment: 7 page
$S$-Functions, Spectral Functions of Hyperbolic Geometry, and Vertex
  Operators with Applications to Structure for Weyl and Orthogonal Group
  Invariants

In this paper we analyze the quantum homological invariants (the Poincar\'e
polynomials of the $\mathfrak{sl}_N$ link homology). In the case when the
dimensions of homologies of appropriate topological spaces are precisely known,
the procedure of the calculation of the Kovanov-Rozansky type homology, based
on the Euler-Poincar\'e formula can be appreciably simplified. We express the
formal character of the irreducible tensor representation of the classical
groups in terms of the symmetric and spectral functions of hyperbolic geometry.
On the basis of Labastida-Mari\~{n}o-Ooguri-Vafa conjecture, we derive a
representation of the Chern-Simons partition function in the form of an
infinite product in terms of the Ruelle spectral functions (the cases of a
knot, unknot, and links have been considered). We also derive an
infinite-product formula for the orthogonal Chern-Simons partition functions
and analyze the singularities and the symmetry properties of the
infinite-product structures.Comment: 33 pages. arXiv admin note: text overlap with arXiv:1006.4266,
  arXiv:1012.2636, arXiv:1310.2981, arXiv:1207.5569, arXiv:0910.0083 by other
  author
Identification of high transverse momentum top quarks in $pp$ collisions
  at $\sqrt{s}$ = 8 TeV with the ATLAS detector

This paper presents studies of the performance of several jet-substructure
techniques, which are used to identify hadronically decaying top quarks with
high transverse momentum contained in large-radius jets. The efficiency of
identifying top quarks is measured using a sample of top-quark pairs and the
rate of wrongly identifying jets from other quarks or gluons as top quarks is
measured using multijet events collected with the ATLAS experiment in 20.3
fb$^{-1}$ of 8 TeV proton-proton collisions at the Large Hadron Collider.
Predictions from Monte Carlo simulations are found to provide an accurate
description of the performance. The techniques are compared in terms of signal
efficiency and background rejection using simulations, covering a larger range
in jet transverse momenta than accessible in the dataset. Additionally, a novel
technique is developed that is optimized to reconstruct top quarks in events
with many jets.Comment: 60 pages plus author list + cover page (78 pages total), 24 figures,
  5 tables, submitted to JHEP, All figures including auxiliary figures are
  available at
  http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/PERF-2015-04
Two loop correction to interference in $gg \to ZZ$

We present results for the production of a pair of on-shell Z bosons via
gluon fusion. This process occurs both through the production and decay of the
Higgs boson, and through continuum production where the Z boson couples to a
loop of massless quarks or to a massive quark. We calculate the interference of
the two processes and its contribution to the cross section up to and including
order O(alpha_s^3). The two-loop contributions to the amplitude are all known
analytically, except for the continuum production through loops of top quarks
of mass m. The latter contribution is important for the invariant mass of the
two Z bosons, (as measured by the mass of their leptonic decay products, m_4l),
in a regime where m_4l > 2m because of the contributions of longitudinal
bosons. We examine all the contributions to the virtual amplitude involving top
quarks, as expansions about the heavy top quark limit. Comparison with the
analytic results, where known, allows us to assess the validity of the heavy
quark expansion, and it extensions. We give results for the NLO corrections to
this interference, including both real and virtual radiation.Comment: Ancillary files containing the results of the LME for gg->H and
  gg->ZZ, as Form and Mathematica readable code, are included in the
  submission. v2: minor changes to reflect version accepted for publicatio
Combination or Differentiation? Two theories of processing order in classification

ArticleCopyright © 2015 Elsevier Inc. All rights reserved.Does cognition begin with an undifferentiated stimulus whole, which can be divided into distinct attributes if time and cognitive resources allow (Differentiation Theory)? Or does it begin with the attributes, which are combined if time and cognitive resources allow (Combination Theory)? Across psychology, use of the terms analytic and non-analytic imply that Differentiation Theory is correct—if cognition begins with the attributes, then synthesis, rather than analysis, is the more appropriate chemical analogy. We re-examined four classic studies of the effects of time pressure, incidental training, and concurrent load on classification and category learning (Kemler Nelson, 1984; Smith & Kemler Nelson, 1984; Smith & Shapiro, 1989; Ward, 1983). These studies are typically interpreted as supporting Differentiation Theory over Combination Theory, while more recent work in classification (Milton et al., 2008, et seq.) supports the opposite conclusion. Across seven experiments, replication and re-analysis of the four classic studies revealed that they do not support Differentiation Theory over Combination Theory—two experiments support Combination Theory over Differentiation Theory, and the remainder are compatible with both accounts. We conclude that Combination Theory provides a parsimonious account of both classic and more recent work in this area. The presented data do not require Differentiation Theory, nor a Combination–Differentiation hybrid account
Mapping recent information behavior research: an analysis of co-authorship and co-citation networks

There has been an increase in research published on information behavior in recent years, and this has been accompanied by an increase in its diversity and interaction with other fields, particularly information retrieval. The aims of this study are to determine which researchers have contributed to producing the current body of knowledge on this subject, and to describe its intellectual basis. A bibliometric and network analysis was applied to authorship and co-authorship as well as citation and co-citation. According to these analyses, there is a small number of authors who can be considered to be the most productive and who publish regularly, and a large number of transient ones. Other findings reveal a marked predominance of theoretical works, some examples of qualitative methodology that originate in other areas of social science, and a high incidence of research focused on the user interaction with information retrieval systems and the information behavior of doctors
Betti numbers associated to the facet ideal of a matroid

Accepted manuscript version. The final publication is available at Springer via <a href=http://doi.org/10.1007/s00574-014-0071-9>http://doi.org/10.1007/s00574-014-0071-9</a>.To a matroid M with n edges, we associate the so-called facet ideal F(M)⊂k[x1,…,xn] , generated by monomials corresponding to bases of M. We show that when M is a graph, the Betti numbers related to an ℕ0-graded minimal free resolution of F(M) are determined by the Betti numbers related to the blocks of M. Similarly, we show that the higher weight hierarchy of M is determined by the weight hierarchies of the blocks, as well. Drawing on these results, we show that when M is the cycle matroid of a cactus graph, the Betti numbers determine the higher weight hierarchy — and vice versa. Finally, we demonstrate by way of counterexamples that this fails to hold for outerplanar graphs in general
Search for top-squark pairs decaying into Higgs or Z bosons in pp collisions at √s = 8 TeV

A search for supersymmetry through the direct pair production of top squarks, with Higgs (H) or Z bosons in the decay chain, is performed using a data sample of proton-proton collisions at root s = 8 TeVcollected in 2012 with the CMS detector at the LHC. The sample corresponds to an integrated luminosity of 19.5 fb(-1). The search is performed using a selection of events containing leptons and bottom-quark jets. No evidence for a significant excess of events over the standard model background prediction is observed. The results are interpreted in the context of simplified supersymmetric models with pair production of a heavier top-squark mass eigenstate (t) over tilde (2) decaying to a lighter top-squark mass eigenstate (t) over tilde (1) via either (t) over tilde (2) -> H (t) over tilde (1) or (t) over tilde (2) -> Z (t) over tilde (1), followed in both cases by (t) over tilde (1) -> t (chi) over tilde (0)(1), where (chi) over tilde (0)(1) is an undetected, stable, lightest supersymmetric particle. The interpretation is performed in the region where the mass difference between the (t) over tilde (1) and (chi) over tilde (0)(1) states is approximately equal to the top-quark mass (m((t) over tilde )1) - m((chi) over tilde 10) similar or equal to m(t)) which is not probed by searches for direct (t) over tilde (1) squark pair production. The analysis excludes top squarks with masses m((t) over tilde2) < 575 GeVand m(<(t)over tilde>1) < 400 GeVat a 95% confidence leve
Measurement of the production of neighbouring jets in lead-lead collisions at root sNN=2.76 TeV with the ATLAS detector

Çetin, Serkant Ali (Dogus Author)This Letter presents measurements of correlated production of nearby jets in Pb+Pb collisions at √sNN=2.76 TeV using the ATLAS detector at the Large Hadron Collider. The measurement was performed using 0.14 nb-1 of data recorded in 2011. The production of correlated jet pairs was quantified using the rate, RδR, of "neighbouring" jets that accompany "test" jets within a given range of angular distance, δR, in the pseudorapidity-azimuthal angle plane. The jets were measured in the ATLAS calorimeter and were reconstructed using the anti-kt algorithm with radius parameters d=0.2, 0.3, and 0.4. RδR was measured in different Pb+Pb collision centrality bins, characterized by the total transverse energy measured in the forward calorimeters. A centrality dependence of RδR is observed for all three jet radii with RδR found to be lower in central collisions than in peripheral collisions. The ratios formed by the RδR values in different centrality bins and the values in the 40-80% centrality bin are presented
The Effect of an Intervention to Improve Newly Qualified Teachers' Interpersonal Style, Students Motivation and Psychological Need Satisfaction in Sport-Based Physical Education

International audienceRecent developments in self-determination theory research in the educational setting (e.g., Reeve, Deci, & Ryan, 2004), suggest that teachers' interpersonal style should be considered as consisting of three dimensions: autonomy-support, structure and interpersonal involvement. Based on this theoretical proposition, the purpose of the present study was to test the effects of a training program for three physical education newly qualified teachers on the aforementioned teachers' overt behaviors and students' psychological needs satisfaction, self-determined motivation and engagement in sport-based physical education. After a baseline period of four lessons, the teachers attended an informational session on adaptive student motivation and how to support it. The training program also included individualized guidance during the last four lessons of the cycle. Results revealed that from pre- to post-intervention: (1) teachers managed to improve their teaching style in terms of all three dimensions, and (2) students were receptive to these changes, as shown by increases in their reported need satisfaction, self-determined motivation and engagement in the class
The influence of left ventricular ejection fraction on the effectiveness of cardiac resynchronization therapy: MADIT-CRT (Multicenter Automatic Defibrillator Implantation Trial With Cardiac Resynchronization Therapy).

OBJECTIVES: The goal of this study was to evaluate the influence of left ventricular (LV) lead position on the risk of ventricular tachyarrhythmia in patients undergoing cardiac resynchronization therapy (CRT). BACKGROUND: Left ventricular ejection fraction (LVEF) is a surrogate marker of heart failure (HF) status and associated risk. Data on the effectiveness of cardiac resynchronization therapy with defibrillator (CRT-D) in patients with mild HF and better LVEF are limited. METHODS: In the MADIT-CRT (Multicenter Automatic Defibrillator Implantation Trial With Cardiac Resynchronization Therapy) study, the echocardiography core laboratory assessed baseline LVEF independent of the enrolling centers and identified a range of LVEFs, including those >30% (i.e., beyond the eligibility criteria). Echocardiographic response with CRT, defined as percent change in left ventricular end-diastolic volume (LVEDV), was analyzed in 3 prespecified LVEF groups: >30%, 26% to 30%, and </=25%. The primary endpoint was HF or death. Secondary endpoint included all-cause mortality. RESULTS: LVEF was evaluated in 1,809 study patients. There were 696 (38%) patients with LVEF >30% (in the range of 30.1% to 45.3%); 914 patients (50.5%) with LVEF 26% to 30%; and 199 patients with LVEF </=25% (11%). The mean reduction in LVEDV with CRT-D therapy at the 1-year follow-up was directly related to increasing LVEF (LVEF >30%: 22.3%; LVEF 26% to 30%: 20.1%; and LVEF </=25%: 18.7% reduction, respectively [p = 0.001]). CRT-D treatment similarly reduced the risk of HF/death in patients with LVEF >30% (hazard ratio [HR]: = 0.56 [95% confidence interval (CI): 0.39 to 0.82], p = 0.003), LVEF 26% to 30% (HR: 0.67: [95% CI: 0.50 to 0.90], p = 0.007), and LVEF </=25% (HR: 0.57 [95% CI: 0.35 to 0.95], p = 0.03; all p values for LVEF-by-treatment interactions >0.1). CONCLUSIONS: In MADIT-CRT, the clinical benefit of CRT was evident regardless of baseline LVEF, including those with LVEF >30%, whereas the echocardiographic response was increased with increasing LVEF, indicating that CRT might benefit patients with better LVEF. (Multicenter Automatic Defibrillator Implantation With Cardiac Resynchronization Therapy [MADIT-CRT]; NCT00180271)
Approximate min-max theorems for Steiner rooted-orientations of graphs and hypergraphs

Given an undirected hypergraph and a subset of vertices S subset of V with a specified root vertex r epsilon S, the STEINER ROOTFD-ORIENTATION problem is to find an orientation of all the hyperedges so that in the resulting directed hypergraph the "connectivity" from the root r to the vertices in S is maximized. This is motivated by a multicasting problem in undirected networks as well as a generalization of some classical problems in graph theory. The main results of this paper are the following approximate min-max relations: Given an undirected hypergraph H, if S is 2k-hyperedge-connected in H, then H has a Steiner rooted k-hyperarc-connected orientation. Given an undirected graph G, if S is 2k-element-connected in G, then G has a Steiner rooted k-element-connected orientation. Both results are tight in terms of the connectivity bounds. These also give polynomial time constant factor approximation algorithms for both problems. The proofs are based on submodular techniques, and a graph decomposition technique used in the STEINER TREE PACKING problem. Some complementary hardness results are presented at the end. (c) 2008 Elsevier Inc. All rights reserved
Increasing companies' absorptive capacity through participation in collaborative research centres

- Under a Creative Commons license CC BY-NC-ND 3.0Norway has developed ambitious goals to become one of the leading environment friendly energy nations. The establishment of Centres for Environment-friendly Energy Research (CEER) scheme is one of the main measures for addressing these goals. The CEER scheme seeks to develop expertise and promote innovation through focus on long-term research in selected areas of environment-friendly energy, in close collaboration between prominent research communities and users like industry and public administrative bodies. The main objective of this paper is to explore and present the potential benefits companies may gain from participation in collaborative research centres like CEER, as well as possible barriers for participation. The framing in this paper is on the development of the absorptive capacity for the industry partners through active participation in the concrete research activities. Based on the empirical material for this paper, collected from one of the eight technological CEERs, we conclude that there are benefits to be gained from companies involving themselves in large-scale research centres. Their potential absorptive capacity is increased by exposure of knowledge and hopefully new positive experience with collaboration over time. However, both this effect, and a potential increase in realized absorptive capacity is very dependent on the active involvement of the company and choosing the right persons to represent the company towards the research centre. By contacting the researchers on a regular, keeping up to date, taking initiative and proposing research projects, combined with some patience, participating industry partners should be well positioned to reap the benefits from their funding
Avoiding Snow and Ice Formation on Exterior Solar Cell Surfaces - A Review of Research Pathways and Opportunities

Today energy-efficient and energy-harvesting buildings experience an ever-increasing interest and demand. Building integrated photovoltaics (BIPV) may in this respect represent a powerful and versatile tool for reaching the goal of zero energy and zero emission buildings. The BIPV systems replace the outer building envelope skin, thus serving simultanously as both a climate screen and a power source generating electricity. However, snow and ice formation on the exterior solar cell surfaces reduce their performance and may also lead to faster deterioration. Hence, if one could find a way to develop solar cells which were able to avoid snow and ice formation on their surfaces, one would have moved a large step ahead. This work presents a review exploring miscellaneous pathways for avoiding snow and ice formation on solar cell surfaces including superhydrophobic and icephobic surfaces.© 2016  The Authors. Published  by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license  ( http://creativecommons.org/licenses/by-nc-nd/4.0/
Iron-platinum-arsenide superconductors Ca10(PtnAs8)(Fe2-xPtxAs2)5

An overview of the crystal structures and physical properties of the recently
discovered iron-platinum-arsenide superconductors, Ca10(PtnAs8)(Fe2-xPtxAs2)5
(n = 3 and 4), which have a superconducting transition temperature up to 38 K,
is provided. The crystal structure consists of superconducting Fe2As2 layers
alternating with platinum-arsenic layers, PtnAs8. The upper critical field Hc2,
hydrostatic pressure dependence of superconducting transition temperature Tc,
and normal-state magnetic susceptibility are reported.Comment: 7 pages, 6 figure
Microcanonical Jet-fragmentation in proton-proton collisions at LHC
  Energy

In this paper, we show that the distribution of the longitudinal momentum
fraction of charged hadrons $dN/dz$ inside jets stemming from proton-proton
collisions at $\sqrt{s}$ = 7 TeV center of mass energy can be described by a
statistical jet-fragmentation model. This model combines microcanonical
statistics and super-statistics induced by multiplicity fluctuations. The
resulting scale dependence of the parameters of the model turns out to be
similar to what was observed in electron-positron annihilations in Urmossy,
Barnaf\"oldi, and Bir\'o.Comment: 7 pages, 8 figure
Causal Holographic Information

We propose a measure of holographic information based on a causal wedge
construction. The motivation behind this comes from an attempt to understand
how boundary field theories can holographically reconstruct spacetime. We argue
that given the knowledge of the reduced density matrix in a spatial region of
the boundary, one should be able to reconstruct at least the corresponding bulk
causal wedge. In attempt to quantify the `amount of information' contained in a
given spatial region in field theory, we consider a particular bulk surface
(specifically a co-dimension two surface in the bulk spacetime which is an
extremal surface on the boundary of the bulk causal wedge), and propose that
the area of this surface, measured in Planck units, naturally quantifies the
information content. We therefore call this area the causal holographic
information. We also contrast our ideas with earlier studies of holographic
entanglement entropy. In particular, we establish that the causal holographic
information, whilst not being a von Neumann entropy, curiously enough agrees
with the entanglement entropy in all cases where one has a microscopic
understanding of entanglement entropy.Comment: 34 pages, 6 figures. v2: minor clarifications adde