scholarly journals The Rich Domain of Ambiguity Explored

2018 ◽  
Vol 64 (7) ◽  
pp. 3227-3240 ◽  
Author(s):  
Zhihua Li ◽  
Julia Müller ◽  
Peter P. Wakker ◽  
Tong V. Wang
Keyword(s):  
2019 ◽  
Vol 4 (4) ◽  
pp. 323-335 ◽  
Author(s):  
Peihao Tong ◽  
Qifan Zhang ◽  
Junjie Yao

Abstract With the growing availability of different knowledge graphs in a variety of domains, question answering over knowledge graph (KG-QA) becomes a prevalent information retrieval approach. Current KG-QA methods usually resort to semantic parsing, search or neural matching models. However, they cannot well tackle increasingly long input questions and complex information needs. In this work, we propose a new KG-QA approach, leveraging the rich domain context in the knowledge graph. We incorporate the new approach with question and answer domain context descriptions. Specifically, for questions, we enrich them with users’ subsequent input questions within a session and expand the input question representation. For the candidate answers, we equip them with surrounding context structures, i.e., meta-paths within the targeting knowledge graph. On top of these, we design a cross-attention mechanism to improve the question and answer matching performance. An experimental study on real datasets verifies these improvements. The new approach is especially beneficial for specific knowledge graphs with complex questions.


2021 ◽  
Author(s):  
Boroh Andre William ◽  
Sore-Gamo Koutou Yvan ◽  
Ayiwouo Ngounouno Mohamed ◽  
Gbambié Mbowou Isaac Bertrand ◽  
Ngounouno Ismaïla

Abstract This paper is devoted to determine whether the addition of geological information can improve the resource estimate of mineral resources. The geochemical data used come from 116 drill holes in the Nkout East iron deposit in southern Cameroon. These geochemical data are modeled on Surpac and Isatis softwares to represent the 3D geochemical distribution of iron in the deposit. Statistical analysis and then a variographic study is performed to study the spatial variability of iron. Estimation domains were defined based on the results of geological and geochemical analyses. Four domains were determined. These domains are in particular, the saprolitic domain; the poor domain or fresh rocks such as amphibolites, granites and gneisses; the rich domain or oxidized rocks (BIF) and the metasediment domain. Block modeling of the deposit is performed to estimate the resource. The grade of each block was estimated by using ordinary kriging and composites from each domain. This study also consisted of comparing two types of estimate, notably the domain estimate and the global estimate. The cross-validation made it possible to authenticate the obtained models. From this comparison, the domain estimation brings more precision the global estimate precisely on the error analysis while if we take into account the point clouds of the predicted and estimated values, the estimation by geochemical modelling provides the best results.


2021 ◽  
Vol 57 (1) ◽  
pp. 1-17
Author(s):  
A.W. Boroh ◽  
K.Y. Sore-Gamo ◽  
Ngounouno Ayiwouo ◽  
Mbowou Gbambie ◽  
I. Ngounouno

This paper is devoted to determining whether the addition of geological information can improve the resource estimate of mineral resources. The geochemical data used come from 116 drill holes in the Nkout East iron deposit in southern Cameroon. These geochemical data are modeled on Surpac and Isatis softwares to represent the 3D geochemical distribution of iron in the deposit. Statistical analysis and then a variographic study is performed to study the spatial variability of iron. Estimation domains were defined based on the results of geological and geochemical analyses. Four domains were determined. These domains are the saprolitic domain in particular; the poor domain or fresh rocks such as amphibolites, granites, and gneisses; the rich domain or oxidized rocks (BIF) and the metasediment domain. Block modeling of the deposit is performed to estimate the resource. The grade of each block was estimated by using ordinary kriging and composites from each domain. This study also consisted of comparing two types of estimate, notably the domain estimate and the global estimate. The cross-validation made it possible to authenticate the obtained models. From this comparison, the domain estimation brings more precision the global estimate precisely on the error analysis while if we take into account the point clouds of the predicted and estimated values, the estimation by geochemical modeling provides the best results.


2011 ◽  
Vol 101 (2) ◽  
pp. 695-723 ◽  
Author(s):  
Mohammed Abdellaoui ◽  
Aurélien Baillon ◽  
Laetitia Placido ◽  
Peter P Wakker

We often deal with uncertain events for which no probabilities are known. Several normative models have been proposed. Descriptive studies have usually been qualitative, or they estimated ambiguity aversion through one single number. This paper introduces the source method, a tractable method for quantitatively analyzing uncertainty empirically. The theoretical key is the distinction between different sources of uncertainty, within which subjective (choice-based) probabilities can still be defined. Source functions convert those subjective probabilities into willingness to bet. We apply our method in an experiment, where we do not commit to particular ambiguity attitudes but let the data speak. (JEL D81)


Author(s):  
Shalini Attri ◽  
◽  
Yogesh Chander ◽  

The wide variety of the components of signs stems from verbal communication to visual gestures, ciphers, images, music, and Morse code. Barthes’ Semiotic Theory restructured the theory of analyzing signs and allowed for a new understanding and interpretation of signs through seeing diverse cultures and societies. Saussure’s definition of the sign as a combination of signifier and signified led Barthes to further elucidate sign as connotative (cultural) and denotative (literal) processes. Semiotics can be applied to all aspects of life, as meaning is produced not in isolation but in totality, establishing multiple connotations and denotations. In the article “The World of Wrestling” published in Mythologies (1957), Barthes focused on images portrayed by the wrestler resulting in understanding of the wrestler’s image and the image of spectator. In Morse code, gestures can make any sport a spectacle of suffering, defeat and justice, representation of morality, symbols, anger, smile, passion etc., from which derive denotative and connotative meanings. Similarly, Thomas Sebeok identifies sign as one of six factors in communication, and which makes up the rich domain of semiotic research. These are message, source, destination, channel, code, and context. The present paper will focus on a dialogic relation between semiotics and sports, thus making it a text that reproduces meaning and represents certain groups. It focuses on various aspects of semiotics and their relation to sports. The paper also contemplates the versions and meanings of signs in sports that establish sport as an act of representation.


2018 ◽  
Vol 6 (3) ◽  
pp. 470
Author(s):  
Jane Teasdale ◽  
Nathalie Anderson ◽  
Andrew S Teasdale

The increasing focus on person-centeredness within current healthcare models is increasingly relevant to the growing demographic of socially vulnerable older adults living with complex care needs. According to the UK’s Social Care Institute for Excellence (SCIE), social isolation is “an imposed isolation from normal social networks caused by loss of mobility or deteriorating health”. Those in receipt of homecare in the community cite the importance of having home care meet their social and emotional needs, yet the consensus and the literature strongly supports the notion that public healthcare is barely able to provide basic personal supports let alone the increasingly important domain that encompasses, inter alia, the social and emotional needs of the older adult. In truth, whether one is addressing the physical or the psychosocial, the conceptual model of personhood remains the same. It is the actionable elements of the model that differ. Since the dimensions of the non-clinical psychosocial frame extend, inter alia, to the  social, emotional, creative, existential, cultural, active and physical and community engaged, we believe that engagement with this domain, for the socially vulnerable older adult, warrants a far deeper architecture than both current funding and the narrow task focus of community care is able to provide. This paper defines person-centered care at the furthest point along the chain of care. This is the point occupied by homecare supports in the community. It references a working model of person-centeredness focused on the rich domain of the non-clinical psychosocial. Its two primary dimensions of focus are those of the mind and the “place”, or an ecological/community integrated model of higher order needs. It has three distinct levels of interaction: one designed to create an alternate lens of communication that lies outside of the domain of physical and mental impairment that helps build knowledge of and communication with personhood; an organised process for developing interests and activities with a focus on creative space, new experience, control, autonomy and intrinsic capacity and, finally, a working blueprint for wider community interaction and integration.


2016 ◽  
Vol 62 (7) ◽  
pp. 1954-1969 ◽  
Author(s):  
Olivier Armantier ◽  
Nicolas Treich
Keyword(s):  

PsycCRITIQUES ◽  
2006 ◽  
Vol 51 (49) ◽  
Author(s):  
Patricia M. Berliner
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document