1,238 research outputs found
INRIASAC: Simple Hypernym Extraction Methods
Given a set of terms from a given domain, how can we structure them into a
taxonomy without manual intervention? This is the task 17 of SemEval 2015. Here
we present our simple taxonomy structuring techniques which, despite their
simplicity, ranked first in this 2015 benchmark. We use large quantities of
text (English Wikipedia) and simple heuristics such as term overlap and
document and sentence co-occurrence to produce hypernym lists. We describe
these techniques and pre-sent an initial evaluation of results.Comment: SemEval 2015, Jun 2015, Denver, United State
Influence of Electrode Structuring Techniques on the Performance of All-Solid-State Batteries
All-solid-state batteries (ASSBs) offer a promising route to safer batteries
with superior energy density compared to conventional Li-ion batteries (LIBs).
However, the design of the composite cathode and optimization of the underlying
microstructure is one of the aspects requiring intensive research. Achieving
both high energy and power density remains challenging due to limitations in
ionic conductivity and active material loading. Using structure-resolved
simulations, we investigate the potential of perforated and layered electrode
designs to enhance ASSB performance. Design strategies showing significant
performance increase in LIBs are evaluated regarding their application to
ASSBs. Composite cathodes with solid electrolyte channels in the structure do
not significantly increase cell performance compared to unstructured
electrodes. However, the design with a two-layer cathode proves promising. The
layered structure effectively balances improved ionic transport due to
increased solid electrolyte fraction at the separator side and substantial
active material loading through increased active material fraction at the
current collector side of the cathode. Our research highlights key challenges
in ASSB development and provides a clear direction for future studies in the
field.Comment: 46 pages, 15 figure
On Engineering Support for Business Process Modelling and Redesign
Currently, there is an enormous (research) interest in business process redesign (BPR). Several management-oriented approaches have been proposed showing how to make BPR work. However, detailed descriptions of empirical experience are few. Consistent engineering methodologies to aid and guide a BPR-practitioner are currently emerging. Often, these methodologies are claimed to be developed for business process modelling, but stem directly from information system design cultures. We consider an engineering methodology for BPR to consist of modelling concepts, their representation, computerized tools and methods, and pragmatic skills and guidelines for off-line modelling, communicating, analyzing, (re)designing\ud
business processes. The modelling concepts form the architectural basis of such an engineering methodology. Therefore, the choice, understanding and precise definition of these concepts determine the productivity and effectiveness of modelling tasks within a BPR project. The\ud
current paper contributes to engineering support for BPR. We work out general issues that play a role in the development of engineering support for BPR. Furthermore, we introduce an architectural framework for business process modelling and redesign. This framework consists of a coherent set of modelling concepts and techniques on how to use them. The framework enables the modelling of both the structural and dynamic characteristics of business processes. We illustrate its applicability by modelling a case from service industry. Moreover, the architectural framework supports abstraction and refinement techniques. The use of these techniques for a BPR trajectory are discussed
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