Filters








401,501 Hits in 5.5 sec

Numerical Aspects in the Data Model of Conceptual Information Systems [chapter]

Gerd Stumme, Karl Erich Wolff
1999 Lecture Notes in Computer Science  
While most data analysis and decision support tools use numerical aspects of the data, Conceptual Information Systems focus on their conceptual structure.  ...  In this paper we discuss how the data model of Conceptual Information Systems can be extended by numerical aspects.  ...  Introduction The data model of Conceptual Information Systems relies on the insight that concepts are basic units of human thinking, and should hence be activated in data analysis and decision support.  ... 
doi:10.1007/978-3-540-49121-7_10 fatcat:f4ufk36hznblna7jwfmm36jnfe

Use of Numerical Groundwater Modeling to Evaluate Uncertainty in Conceptual Models of Recharge and Hydrostratigraphy

K. Pohlmann, M. Ye, G. Pohlll, J. Chapman
2007 2007 IEEE International Symposium on Technology and Society  
Numerical groundwater models are based on conceptualizations of hydrogeologic systems that are by necessity developed from limited information and therefore are simplifications of real conditions.  ...  system can be conceptualized in different ways, and (2) uncertainty in groundwater recharge in the region as evidenced by the existence of several independent approaches for estimating this aspect of  ...  Numerical groundwater models are based on conceptualizations of hydrogeologic systems that are by necessity developed from limited information and therefore are simplifications of real conditions.  ... 
doi:10.1109/istas.2007.4362229 dblp:conf/istas/PohlmannYPC07 fatcat:7eji4ctsvrdr3fd3uy2p4ekp3i

Information system development with the enhancement of CASE tools functionality

Igor Novakovic, Velimir Deletic, Milan Deletic
2010 Facta universitatis - series Electronics and Energetics  
It describes the technique for information flows analysis, which can be used in conceptual modelling and further development of the system.  ...  This paper presents how funcionality of certain CASE tools can be extended in order to facilitate requirements engineering.  ...  Conclusion Information flows can be used not only for modeling the static aspects of the system, but also for deriving information concerning the dynamic aspects of the system.  ... 
doi:10.2298/fuee1001055n fatcat:spzo7xvn6nehnmqr757uuxc4eq

Systematic Brain Data Analysis: A Review

Hamid Faisal, Shruti Kolte, Vikrant Chole
2015 International Journal of Computer Applications  
This paper reviews the existing research and methodologies developed so far, in the area of Brain Informatics, Web Intelligence, Learning Schemes, Analytical methods and relevant aspects of these along  ...  More data and analytical methods need to be added in the existing BI approaches. Also, there is high need to embed these into a mature computing environment.  ...  BACKGROUND 2.1 The Data Brain Model The Data-Brain [1] [2] [20] is a domain-driven conceptual model for brain data, which represents multi-aspect relationships among numerous human brain data sources  ... 
doi:10.5120/19309-0761 fatcat:t5exqqxernctpmk2deok33opde

Constructing a New-Style Conceptual Model of Brain Data for Systematic Brain Informatics

Ning Zhong, Jianhui Chen
2012 IEEE Transactions on Knowledge and Data Engineering  
among multiple human brain data sources, with respect to all major aspects and capabilities of human information processing systems (HIPS).  ...  Such a Data-Brain modeling approach represents a radically new way for domain-driven conceptual modeling of brain data, which models a whole process of systematically investigating human information processing  ...  Thus, for constructing the data cycle system, BI needs a domain-driven conceptual model of brain data, i.e., the Data-Brain, which models the whole lifecycle of brain data in the BI "data, information,  ... 
doi:10.1109/tkde.2011.139 fatcat:jioi777xpvhtxjv5t3lzibsjoa

Using Formal Measures to Improve Maturity Model Assessment for Conceptual Interoperability [chapter]

Gabriel S. S. Leal, Wided Guédria, Hervé Panetto, Erik Proper, Mario Lezoche
2017 Lecture Notes in Computer Science  
Acknowledgements This work has been conducted in the context of the PLATINE project (PLAnning Transformation Interoperability in Networked Enterprises), financed by the national fund of research of the  ...  Grand Duchy of Luxembourg (FNR), under the grant C14/IS/8329172.  ...  The second, is conceptual interoperability aspect dealing with knowledge and information sharing among systems.  ... 
doi:10.1007/978-3-319-55961-2_5 fatcat:pkf2avo2ejgsdhyaod6gy6q65e

Pragmatic Validation of Numerical Models Used for the Assessment of Radioactive Waste Repositories: A Perspective

Stefan Finsterle, Bill Lanyon
2022 Energies  
We focus on the practical aspects of validating hydrogeological models that are used to understand the evolution of the repository system.  ...  The safety case for a radioactive waste repository relies heavily on results obtained by numerical models that assess the long-term performance of the engineered and natural barrier systems.  ...  The authors thank the participants of Task 10 (Validation Approaches for Groundwater Flow and Transport Modelling with Discrete Features), specifically the White Paper Group (P. Davy, W.S.  ... 
doi:10.3390/en15103585 fatcat:jpfvieflmfhabh7p5ewkyabxza

Conceptual Models in Hydrogeology, Methodology and Results [chapter]

Teresita Betancur, Carlos Alberto Palacio T., John Fernando Escobar M.
2012 Hydrogeology - A Global Perspective  
Many aspects of the conceptual model are not possible to represent in numerical model, because the hydrogeological systems are very complex (Wagener, et al. 2007) .  ...  Introduction The foundation of model analysis is the conceptual model. A conceptual model in hydrogeology is a representation of the hydrogeological units and the flow system of groundwater.  ... 
doi:10.5772/28155 fatcat:x5tfty2o4jeedkpxmgozg6t6va

Towards a comprehensive assessment of model structural adequacy

Hoshin V. Gupta, Martyn P. Clark, Jasper A. Vrugt, Gab Abramowitz, Ming Ye
2012 Water Resources Research  
1] The past decade has seen significant progress in characterizing uncertainty in environmental systems models, through statistical treatment of incomplete knowledge regarding parameters, model structure  ...  In this paper, we (a) propose a consistent and systematic "unifying conceptual framework" consisting of five formal steps for comprehensive assessment of MSA; (b) discuss the need for a pluralistic definition  ...  This approach may focus on techniques that quantify the information content of data as a means to characterize which aspects of system behavior are evident in observational data.  ... 
doi:10.1029/2011wr011044 fatcat:apr66frzmbee3otm6yxo5iaql4

Review of the uncertainty analysis of groundwater numerical simulation

JiChun Wu, XianKui Zeng
2013 Chinese Science Bulletin  
According to the process of system simulation, the uncertainty sources of groundwater numerical simulation can be divided into model parameters, conceptual model and observation data uncertainties.  ...  Finally, several prospects on the deveolpment of groundwater modeling uncetainty analysis are proposed. groundwater modeling, uncertainty analysis, model parameter, conceptual model, observation data Citation  ...  When information criteria is used for selecting models, each conceptual model will obtain a K-L value which represents the loss of information as the real groundwater system is represented by this model  ... 
doi:10.1007/s11434-013-5950-8 fatcat:rnfa2rocdfcntc7vq5gbg7sh4a

Sharing retrieved information using Linked Credibility Reviews

Ronald Denaux, José Manuél Gómez-Pérez
2021 European Conference on Information Retrieval  
These special requirements for such IR systems suggest the need for good abstractions to represent relevant aspects like the credibility of retrieved information and the confidence of automated systems  ...  ) discuss the role this conceptualisation can play in information retrieval systems for reducing online misinformation.  ...  Conceptual Model A Credibility Review (CR) is an extension of the generic Review data model defined in Schema.org.  ... 
dblp:conf/ecir/DenauxG21 fatcat:54kghln4ijf6tnu4jgzkyo2qpe

Developing Web Geographic Information System with the NDT Methodology [chapter]

J. Ponce, A.H. Torres, M.J. Escalona, M. Mejias, F.J. Dominguez-Mayo
2012 Application of Geographic Information Systems  
The OOHDM (Oriented-Object Hypermedia Design Method) (Rossi, 1996) models are presented in the Figure 1 in order to reference the classic models. OOHDM is one of the most studied approaches.  ...  Developing Web Geographic Information System with the NDT Methodology 351  ...  project of the Junta de Andalucia, Spain (TIC-5789).  ... 
doi:10.5772/47971 fatcat:vzhcga27crfrzfxx43zvek4kfu

An Elephant in the Dark: Creating Semantic Representations of Perceived Data with Conceptual Spaces

Hadi Banaee, Erik Schaffernicht, Amy Loutfi
2018 International Workshop on Artificial Intelligence and Cognition  
First, the elements of a conceptual space are derived based on a set of numerical observations in order to semantically represent the concepts of a given data set.  ...  The theory of conceptual spaces is considered as a semantic representation to conceptualise the perceived numerical information and to infer linguistic descriptions.  ...  This task is especially crucial if the information given to the system is in the form of numeric or non-symbolic measurements (e.g., sensor data).  ... 
dblp:conf/aic/BanaeeSL18 fatcat:npb6o7qtjncr3f6n6eu5cwfjkm

Data Modelling and Conceptual Modelling: a comparative analysis of functionality and roles

T.William Olle
1993 Australasian Journal of Information Systems  
Based on the distinctions made, the paper suggests a way in which a data modelling facility and a conceptual schema modelling facility can be positioned in an information systems life cycle.  ...  This paper reviews the functionality associated "data modelling" and "conceptual modelling".  ...  "System design" is the stage in which the externally visible aspects of the information system are prescribed, quite independently of how the system is to be constructed and which construction tools are  ... 
doi:10.3127/ajis.v1i1.431 fatcat:yjje7iedfzfzrjrtrx2z7unwyq

A Data Warehouse Architecture for Meteo Swiss: An Experience Report

Christian Häberli, Dimitris Tombros
2001 Design and Management of Data Warehouses  
The paper describes the meteorological and climatology data process, the data warehouse architecture developed to support this process while integrating legacy systems and some of the modelling issues  ...  In this experience report we consider some issues in the development of a data warehouse for meteorological and climatology data at MeteoSwiss.  ...  The conceptual model covers all aspects of the data without considering the technical database realization.  ... 
dblp:conf/dmdw/HaberliT01 fatcat:wpqjym2xvbhapjkz7kngmldgiq
« Previous Showing results 1 — 15 out of 401,501 results