149,667 research outputs found
Improving patient health literacy in imaging departments
Health Literacy is a key issue in the healthcare and its operational definition developed for the National Library of Medicine mention that is the “the degree to which individuals have the capacity to obtain, process, and understand basic health information and services needed to make appropriate health decisions” 1. Health literacy skills are needed for dialogue and discussion, reading health information, making decisions about participating in research activities, using medical tools for personal or familial health care, and even for voting on health or environmental...info:eu-repo/semantics/publishedVersio
Distributional Formal Semantics
Natural language semantics has recently sought to combine the complementary
strengths of formal and distributional approaches to meaning. More
specifically, proposals have been put forward to augment formal semantic
machinery with distributional meaning representations, thereby introducing the
notion of semantic similarity into formal semantics, or to define
distributional systems that aim to incorporate formal notions such as
entailment and compositionality. However, given the fundamentally different
'representational currency' underlying formal and distributional approaches -
models of the world versus linguistic co-occurrence - their unification has
proven extremely difficult. Here, we define a Distributional Formal Semantics
that integrates distributionality into a formal semantic system on the level of
formal models. This approach offers probabilistic, distributed meaning
representations that are also inherently compositional, and that naturally
capture fundamental semantic notions such as quantification and entailment.
Furthermore, we show how the probabilistic nature of these representations
allows for probabilistic inference, and how the information-theoretic notion of
"information" (measured in terms of Entropy and Surprisal) naturally follows
from it. Finally, we illustrate how meaning representations can be derived
incrementally from linguistic input using a recurrent neural network model, and
how the resultant incremental semantic construction procedure intuitively
captures key semantic phenomena, including negation, presupposition, and
anaphoricity.Comment: To appear in: Information and Computation (WoLLIC 2019 Special Issue
Quantum entanglement analysis based on abstract interpretation
Entanglement is a non local property of quantum states which has no classical
counterpart and plays a decisive role in quantum information theory. Several
protocols, like the teleportation, are based on quantum entangled states.
Moreover, any quantum algorithm which does not create entanglement can be
efficiently simulated on a classical computer. The exact role of the
entanglement is nevertheless not well understood. Since an exact analysis of
entanglement evolution induces an exponential slowdown, we consider
approximative analysis based on the framework of abstract interpretation. In
this paper, a concrete quantum semantics based on superoperators is associated
with a simple quantum programming language. The representation of entanglement,
i.e. the design of the abstract domain is a key issue. A representation of
entanglement as a partition of the memory is chosen. An abstract semantics is
introduced, and the soundness of the approximation is proven.Comment: 13 page
Extracting semantics for information extraction
Text documents are one of the means to store information.These documents can be found on personal desktop computers, intranets and in the Web. Thus the valuable knowledge is embedded in an unstructured form. Having an automated system that can extract information from the texts is very
desirable.However, the major challenging issue in developing such an automated system is a natural language is not free from ambiguity and uncertainty problems.Thus semantic extraction remains a challenging task to researchers in this
area.In this paper, a new framework to extract semantics for information extraction is proposed, where possibility theory, fuzzy sets, and knowledge about the subject and preceding sentence have been used as the key in resolving the ambiguity and uncertainty problems
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