8,168,350 Hits in 6.5 sec

A data base management problem specification model

Gerard T. Capraro, P. Bruce Berra
1974 Proceedings of the May 6-10, 1974, national computer conference and exposition on - AFIPS '74  
Additional work has been performed in the partial development of a user oriented problem specification language (PSL).3 DATA BASE MANAGEMENT SYSTEM PROBLEM SPECIFICATION MODEL ...  ...  The Data Base Management System Problem Specification Model (DBMPSM) can be described as shown in Figure l .  ... 
doi:10.1145/1500175.1500186 dblp:conf/afips/CapraroB74 fatcat:wwdbhcrgnrd7pc4yvylqmb4wmq

Specification Of A Model Of Honeypot Attack Based On Raised Data

Souleymane Oumtanaga, Prosper Kimou, Kouadio Gaza Kevin
2008 Zenodo  
This article aims to specify a model of honeypots attack. Our model describes, on a given platform, the evolution of attacks according to theirs hours.  ...  Existing security systems have shown their limit; thus a new type of security systems was born: honeypots.  ...  Data collected in every platform are daily sent to a central data base installed in Eurecom.  ... 
doi:10.5281/zenodo.1081299 fatcat:odgk76i5wbcenocojofl7bdwwy

A template-based data specification framework for modeling physical security systems

Ashu Guru, Paul Savory
2006 Computers & industrial engineering  
This paper describes a template-based framework to help identify and specify the components and data parameters for developing models of physical security systems.  ...  The modeling framework has been programmed as an internet-based web application and is simulation language independent.  ...  Figure 1 .Figure 2 . 12 Components Screen shot of web application for creating data specification tables "A Template-Based Data Specification Framework For Modeling Physical Security Systems," Computers  ... 
doi:10.1016/j.cie.2006.05.001 fatcat:nrcbtnv4zvefhdct3robp6fkcu

Visual Specification of Multidimensional Queries Based on a Semantic Data Model [chapter]

Michael Böhnlein, Achim Ulbrich-vom Ende, Markus Plaha
2002 Vom Data Warehouse zum Corporate Knowledge Center  
data model.  ...  Instead of taking for granted that users have knowledge of the underlying data, the tool provides users with the information about the data in a graphical representation of a semantic multidimensional  ...  In this paper, we illustrate the graphical specification of queries based on a semantic data model.  ... 
doi:10.1007/978-3-642-57491-7_22 fatcat:xqnxocvxhvbshdtydil4nelbjm

A maximum likelihood estimator based on first differences for a panel data Tobit model with individual specific effects

Adriaan S. Kalwij
2003 Economics Letters  
This paper proposes a new estimator for a panel data Tobit model in which the unobserved individual specific effects are allowed to correlate with the explanatory variables.  ...  A maximum likelihood estimator is based on taking first differences of the equation of interest.  ...  Acknowledgements I would like to thank Mary Gregory, Maria Rochina-Barrachina, Jeff Wooldridge, seminar participants at the 9th International Conference on Panel Data and an anonymous referee for very  ... 
doi:10.1016/s0165-1765(03)00166-6 fatcat:ti7qjvrsvvcanka5fqzflggfce

A Maximum Likelyhood Estimator Based On First Difference For A Panel Data Tobit Model With Individual Specific Effects

Adriaan S. Kalwij
2000 Social Science Research Network  
This paper proposes a new estimator for a panel data Tobit model in which the unobserved individual specific effects are allowed to correlate with the explanatory variables.  ...  A maximum likelihood estimator is based on taking first differences of the equation of interest.  ...  Acknowledgements I would like to thank Mary Gregory, Maria Rochina-Barrachina, Jeff Wooldridge, seminar participants at the 9th International Conference on Panel Data and an anonymous referee for very  ... 
doi:10.2139/ssrn.247682 fatcat:32iaz6zxvfchxb5evgld3kxk5i

Inferring Biological Mechanisms by Data-Based Mathematical Modelling: Compartment-Specific Gene Activation during Sporulation inBacillus subtilisas a Test Case

Dagmar Iber
2011 Advances in Bioinformatics  
For most systems, such detailed experimental information is currently not available, but accumulating biochemical data through technical advances are likely to enable the detailed modelling of an increasing  ...  A major challenge will be the linking of such detailed models and their integration into a multiscale framework to enable their analysis in a larger biological context.  ...  The paper was partially funded through a SystemsX grant as part of the RTD InfectX.  ... 
doi:10.1155/2011/124062 pmid:22312331 pmcid:PMC3270535 fatcat:6hcwsz6ppnhhznnx7accxnpcnq

Designing a Graphical Domain-Specific Modelling Language Targeting a Filter-Based Data Analysis Framework

Christian Köllner, Georg Dummer, Andreas Rentschler, K.D. Müller-Glaser
2010 2010 13th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing Workshops  
We demonstrate the application of a Model-Driven Software Development (MDSD) methodology using the example of an analysis framework designed for a data logging device in the field of vehicle testing.  ...  In a next step we developed a graphical modelling language on top of our library and a graphical editor.  ...  CONCLUSION Given a domain-specific data analysis library based on SystemC, we showed the design of a suitable modelling language and an appropriate graphical editor.  ... 
doi:10.1109/isorcw.2010.33 dblp:conf/isorc/KollnerDRM10 fatcat:r3mmzceqmnau7bjzzszprtzqoy

Patient-specific anisotropic model of human trunk based on MR data

Olivier Courchesne, Francois Guibault, Stefan Parent, Farida Cheriet
2015 International Journal for Numerical Methods in Biomedical Engineering  
This paper presents an algorithm to generate a patient specific 3D geometric model, based on a tetrahedral mesh, without an initial extraction of contours from the volumetric data.  ...  Brankov et al used a content-adaptive mesh model for non-uniform sampling of medical datasets to reduce the amount of data to process [25].  ...  This representation will be a patient specific high quality 3D geometric model, based on tetrahedral elements and using MR data.  ... 
doi:10.1002/cnm.2724 pmid:25981718 fatcat:pa6574lyrvdidi52vv7nv24cca

Functional requirements specification and data modeling for a PDA-based decision support system for the screening and management of obesity

Nam-Ju Lee, Ritamarie John, Suzanne Bakken
2006 AMIA Annual Symposium Proceedings  
The purposes of this study were to identify the functional requirements of and to build the data model for a PDA-DSS.  ...  Through Use Case Analysis and UML modeling, seven Use Cases were documented, and Use Case Diagrams, Activity Diagrams, and Sequence Diagrams related to the management of were developed.  ...  A conceptual model was built through a three-step process: 1) development of Use Cases, 2) development of a data model using UML, and 3) validation of the data model.  ... 
pmid:17238621 pmcid:PMC1839530 fatcat:bsfpxerz2ngd5mchwzpw5p3eji

Support Vector Data Description Model to Map Specific Land Cover with Optimal Parameters Determined from a Window-Based Validation Set

Jinshui Zhang, Zhoumiqi Yuan, Guanyuan Shuai, Yaozhong Pan, Xiufang Zhu
2017 Sensors  
This paper developed an approach, the window-based validation set for support vector data description (WVS-SVDD), to determine optimal parameters for support vector data description (SVDD) model to map  ...  specific land cover by integrating training and window-based validation sets.  ...  All the authors contributed to data analysis; Zhoumiqi Yuan wrote paper and other authors revised paper together. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s17050960 pmid:28445404 pmcid:PMC5461084 fatcat:urasuzssdjbjdenb6xxntklyt4

A methodology to develop a patient-specific 3D musculoskeletal model based on MRI, ground reaction forces and motion capture data

Arnaud Van Branteghem, Jan Victor, Patrick De Baets, Matthias Verstraete
2015 International Journal Sustainable Construction & Design  
The combination of this data into the 3D models allows for a more precise calculation and simulation of knee joints.  ...  This paper suggests a particular methodology to build such personalised models, by implementing data of additional measurement systems.  ...  This delay time is calculated based on the specific parameters of the set-up, and ranges between 0 -65 ms.  ... 
doi:10.21825/scad.v6i2.1126 fatcat:lvkx3qakaba7pokyr66bl7htvm

Prediction Is a Balancing Act: Importance of Sampling Methods to Balance Sensitivity and Specificity of Predictive Models Based on Imbalanced Chemical Data Sets

Priyanka Banerjee, Frederic O. Dehnbostel, Robert Preissner
2018 Frontiers in Chemistry  
Our results suggest that, irrespective of data set used, sampling methods can have major influence on reducing the gap between sensitivity and specificity of a model.  ...  Most of the time, such computational models and its application must deal with imbalanced chemical data. It is indeed a challenge to construct a classifier using imbalanced data set.  ...  However, in general it is seen that sampling is a sensible way to reduce the gap between sensitivity and specificity of a model.  ... 
doi:10.3389/fchem.2018.00362 pmid:30271769 pmcid:PMC6149243 fatcat:b2c55rgrjvcz5l567u4htgmz3m

A Software Framework for Creating Patient Specific Geometric Models from Medical Imaging Data for Simulation Based Medical Planning of Vascular Surgery [chapter]

Nathan Wilson, Kenneth Wang, Robert W. Dutton, Charles Taylor
2001 Lecture Notes in Computer Science  
However, like the SVVL this system also lacked the ability to build 3-D patient-specific geometric models from medical imaging data.  ...  The major shortcoming of the SVVL was its inability to build patient specific preoperative geometric models from medical imaging data.  ... 
doi:10.1007/3-540-45468-3_54 fatcat:vgfqhrydtvd5hjciiuexhtquqe

The origin of n -alkanes in Santa Monica Basin surface sediment: a model based on compound-specific Δ 14 C and δ 13 C data

A. Pearson, T.I. Eglinton
2000 Organic Geochemistry  
The data were then simulated using a three-component mixing model designed to represent the contributions of dierent sources.  ...  The model was optimized to ®t the data and to determine the fractional contribution of each component.  ...  The average Á 14 C of atmospheric CO 2 between 1980 and the present is estimated to be $+200% based on data in Levin and Kromer (1997) .  ... 
doi:10.1016/s0146-6380(00)00121-2 fatcat:osfb5zjb4rbsvhenvsn7ezschi
« Previous Showing results 1 — 15 out of 8,168,350 results