Updating Probabilistic Knowledge Using Imprecise and Uncertain Evidence

Author(s):  
Hexin Lv ◽  
Ning Qiu ◽  
Yongchuan Tang
IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 146876-146886
Author(s):  
Claudio Bettini ◽  
Gabriele Civitarese ◽  
Davide Giancane ◽  
Riccardo Presotto

Author(s):  
B Sathiya ◽  
T.V. Geetha

The prime textual sources used for ontology learning are a domain corpus and dynamic large text from web pages. The first source is limited and possibly outdated, while the second is uncertain. To overcome these shortcomings, a novel ontology learning methodology is proposed to utilize the different sources of text such as a corpus, web pages and the massive probabilistic knowledge base, Probase, for an effective automated construction of ontology. Specifically, to discover taxonomical relations among the concept of the ontology, a new web page based two-level semantic query formation methodology using the lexical syntactic patterns (LSP) and a novel scoring measure: Fitness built on Probase are proposed. Also, a syntactic and statistical measure called COS (Co-occurrence Strength) scoring, and Domain and Range-NTRD (Non-Taxonomical Relation Discovery) algorithms are proposed to accurately identify non-taxonomical relations(NTR) among concepts, using evidence from the corpus and web pages.


Author(s):  
James Franklin

The history of the evaluation of uncertain evidence before the quantification of probability in 1654 is a mass of examples relevant to current debates. They deal with matters that in general are as unquantified now as ever – the degree to which evidence supports theory, the strength and justification of inductive inferences, the weight of testimony, the combination of pieces of uncertain evidence, the price of risk, the philosophical nature of chance, and the problem of acting in case of doubt. Concepts similar to modern “proof beyond reasonable doubt” were developed especially in the legal theory of evidence. Moral theology discussed “probabilism”, the doctrine that one could follow a probable opinion in ethics even if the opposite was more probable. Philosophers understood the difficult problem of induction. Legal discussion of “aleatory contracts” such as insurance and games of chance developed the framework in which the quantification of probability eventually took place.


Author(s):  
Hannah Chase ◽  
Sotiris Mastoridis ◽  
Nicholas Maynard

Gastro-oesophageal reflux disease (GORD) is a common condition in developed countries with an increasing incidence in the UK, currently estimated at 5 per 1000 person-years. Risk factors for GORD include Helicobacter pylori infection, obesity, alcohol consumption, smoking and genetic predisposition.  Surgical management is performed in chronic, severe cases of GORD, refractory to medical management. There are a variety of interventional surgical techniques available and the patient in this case had placement of an AngelChik Device (AD) 30 years ago. This is now a historic device due to associated complications and this patient had it removed with revisional treatment of the patient’s GORD with Nissen Fundoplication. The patient experienced multiple post-surgical complications, namely biliary leak from the central port, pulmonary embolism and pneumonia. Following description of the case, this report will discuss the increasing incidence of late complications of AD and propose a proactive approach to these patients going forwards. It will also discuss the current uncertain evidence of a new surgical intervention called magnetic sphincter augmentation (MSA) of the lower oesophagus that has similar principles to the mechanism of an AD. From this it will emphasise that more stringent and worldwide collaboration is required when bringing a new medical device into clinical care.


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