1,583 research outputs found
How the Kano model contributes to Kansei engineering in services
Recent studies show that products and services hold great appeal if they are attractively designed to elicit emotional feelings from customers. Kansei engineering (KE) has good potential to provide a competitive advantage to those able to read and translate customer affect and emotion in actual product and services. This study introduces an integrative framework of the Kano model and KE, applied to services. The Kano model was used and inserted into KE to exhibit the relationship between service attribute performance and customer emotional response. Essentially, the Kano model categorises service attribute quality into three major groups (must-be [M], one-dimensional [O] and attractive [A]). The findings of a case study that involved 100 tourists who stayed in luxury 4- and 5-star hotels are presented. As a practical matter, this research provides insight on which service attributes deserve more attention with regard to their significant impact on customer emotional needs.
Statement of Relevance: Apart from cognitive evaluation, emotions and hedonism play a big role in service encounters. Through a focus on delighting qualities of service attributes, this research enables service providers and managers to establish the extent to which they prioritise their improvement efforts and to always satisfy their customer emotions beyond expectation.
Keywords:
Kansei engineering, emotional feelings, Kano model, service
Baryonium, tetra-quark state and glue-ball in large N_c QCD
From the large-N_c QCD point of view, baryonia, tetra-quark states, hybrids,
and glueballs are studied. The existence of these states is argued for. They
are constructed from baryons. In N_f=1 large N_c QCD, a baryonium is always
identical to a glueball with N_c valence gluons. The ground state 0^{-+}
glueball has a mass about 2450 MeV. f_0(1710) is identified as the lowest
0^{++} glueball. The lowest four-quark nonet should be f_0(1370), a_0(1450),
K^*_0(1430) and f_0(1500). Combining with the heavy quark effective theory,
spectra of heavy baryonia and heavy tetra-quark states are predicted. 1/N_c
corrections are discussed.Comment: 16 pages, 3 figure
Rare B decays and Tevatron top-pair asymmetry
The recent Tevatron result on the top quark forward-backward asymmetry, which
deviates from its standard model prediction by 3.4, has prompted many
authors to build new models to account for this anomaly. Among the various
proposals, we find that those mechanisms which produce via - or
-channel can have a strong correlation to the rare B decays. We demonstrate
this link by studying a model with a new charged gauge boson, . In terms of
the current measurements on decays, we conclude that the branching
ratio for is affected most by the new effects.
Furthermore, using the world average branching ratio for the exclusive B decays
at level, we discuss the allowed values for the new parameters.
Finally, we point out that the influence of the new physics effects on the
direct CP asymmetry in B decays is insignificant.Comment: 15 page, 6 figures, typos corrected and references added, final
version to appear journa
High-Energy Symmetry of Bosonic Open String Theory in the Light-like Linear Dilaton Background
High-energy limits of fixed-angle tree-level stringy scattering amplitudes in
the light-like linear dilaton background are calculated. Treating the time
component of the gradient of light-like dilaton field (V_0) as a moduli
parameter, we show that: (1) there exists a new fixed-point (V_0/E \to \infty)
in the moduli space of the bosonic open string theory, where a new high-energy
symmetry among scattering amplitudes can be identified, (2) this new symmetry
can be interpreted as a deformation of the flat-space high-energy symmetry, as
proposed by D. Gross. Hence, our results give a concrete illustration about the
relation between high-energy stringy symmetry and the background independent
formulation of string theory.Comment: 42pages, 3figures, 5tables, typos corrected, commments and reference
added
Increased Rate of CD4+ T-Cell Decline and Faster Time to Antiretroviral Therapy in HIV-1 Subtype CRF01_AE Infected Seroconverters in Singapore
It remains controversial as to whether HIV-1 subtypes influence disease progression. Singapore offers a unique opportunity to address this issue due to the presence of co-circulating subtypes. We compared subtype CRF01_AE and non-CRF01_AE infected patients, with regards to estimated annual rate of CD4+ T-cell loss and time from estimated data of seroconversion (EDS) to antiretroviral therapy (ART).We recruited ART-naive patients with known dates of seroconversion between October 2002 and December 2007 at the Singapore Communicable Disease Centre, the national reference treatment centre. Multilevel mixed-effects models were used to analyse the rate of CD4+ T-cell decline. Time from EDS to ART was analyzed with the Kaplan-Meier survival method and compared with Cox proportional hazards models. viral load.Infecting subtype significantly impacted the rate of CD4+ T-cell loss and time to treatment in this cohort. Studies to understand the biological basis for this difference could further our understanding of HIV pathogenesis
Distorted magnetic orders and electronic structures of tetragonal FeSe from first-principles
We use the state-of-the-arts density-functional-theory method to study
various magnetic orders and their effects on the electronic structures of the
FeSe. Our calculated results show that, for the spins of the single Fe layer,
the striped antiferromagnetic orders with distortion are more favorable in
total energy than the checkerboard antiferromagnetic orders with tetragonal
symmetry, which is consistent with known experimental data, and the inter-layer
magnetic interaction is very weak. We investigate the electronic structures and
magnetic property of the distorted phases. We also present our calculated spin
coupling constants and discuss the reduction of the Fe magnetic moment by
quantum many-body effects. These results are useful to understand the
structural, magnetic, and electronic properties of FeSe, and may have some
helpful implications to other FeAs-based materials
Deep Weighted Averaging Classifiers
Recent advances in deep learning have achieved impressive gains in
classification accuracy on a variety of types of data, including images and
text. Despite these gains, however, concerns have been raised about the
calibration, robustness, and interpretability of these models. In this paper we
propose a simple way to modify any conventional deep architecture to
automatically provide more transparent explanations for classification
decisions, as well as an intuitive notion of the credibility of each
prediction. Specifically, we draw on ideas from nonparametric kernel
regression, and propose to predict labels based on a weighted sum of training
instances, where the weights are determined by distance in a learned
instance-embedding space. Working within the framework of conformal methods, we
propose a new measure of nonconformity suggested by our model, and
experimentally validate the accompanying theoretical expectations,
demonstrating improved transparency, controlled error rates, and robustness to
out-of-domain data, without compromising on accuracy or calibration.Comment: 13 pages, 8 figures, 5 tables, added DOI and updated to meet ACM
formatting requirements, In Proceedings of FAT* (2019
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