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A SYSTEM DYNAMICS MODEL TO STUDY THE IMPORTANCE OF INFRASTRUCTURE FACILITIES ON QUALITY OF PRIMARY EDUCATION SYSTEM IN DEVELOPING COUNTRIES
Pedamallu, Chandra Sekhar; Ozdamar, Linet; Weber, Gerhard Wilhelm; Kropat, Erik (2010-02-04)
The system dynamics approach is a holistic way of solving problems in real-time scenarios. This is a powerful methodology and computer simulation modeling technique for framing, analyzing, and discussing complex issues and...
Iterative methods for tomography problems: implementation to a cross-well tomography problem
Karadeniz, M. F.; Weber, Gerhard Wilhelm (2017-08-23)
The velocity distribution between two boreholes is reconstructed by cross-well tomography, which is commonly used in geology. In this paper, iterative methods, Kaczmarz's algorithm, algebraic reconstruction technique (ART)...
Multi-objective Aggregate Production Planning Model Considering Overtime and Outsourcing Options Under Fuzzy Seasonal Demand
Tirkolaee, Erfan Babaee; Goli, Alireza; Weber, Gerhard Wilhelm (2019-01-01)
This paper investigates a novel fuzzy multi-objective multi-period Aggregate Production Planning (APP) problem under seasonal demand. As two of the main real-world assumptions, the options of workforce overtime and outsour...
ROBUST CONIC GENERALIZED PARTIAL LINEAR MODELS USING RCMARS METHOD - A ROBUSTIFICATION OF CGPLM
Ozmen, Ayse; Weber, Gerhard Wilhelm (2012-08-08)
GPLM is a combination of two different regression models each of which is used to apply on different parts of the data set. It is also adequate to high dimensional, non-normal and nonlinear data sets having the flexibility...
Electricity Price Modelling for Turkey
Yildirim, Miray Hanim; Ozmen, Ayse; TÜRKER BAYRAK, ÖZLEM; Weber, Gerhard Wilhelm (2011-09-02)
This paper presents customized models to predict next-day's electricity price in short-term periods for Turkey's electricity market. Turkey's electricity market is evolving from a centralized approach to a competitive mark...
Chebyshev Spectral Collocation Method for Natural Convection Flow of a Micropolar Nanofluid in the Presence of a Magnetic Field
Türk, Önder (2016-01-01)
The two-dimensional, laminar, unsteady natural convection flow of a micropolar nanofluid (Al2O3-water) in a square enclosure under the influence of a magnetic field, is solved numerically using the Chebyshev spectral collo...
Incremental Reasoning on Strongly Distributed Multi-Agent Systems
Ravve, Elena V.; Volkovich, Zeev; Weber, Gerhard Wilhelm (2015-09-24)
We introduce the notion of strongly distributed multi-agent systems and present a uniform approach to incremental problem solving on them. The approach is based on the systematic use of two logical reduction techniques: Fe...
ON FOUNDATIONS OF PARAMETER ESTIMATION FOR GENERALIZED PARTIAL LINEAR MODELS WITH B-SPLINES AND CONTINUOUS OPTIMIZATION
TAYLAN, PAKİZE; Weber, Gerhard Wilhelm; Liu, Lian (2010-02-04)
Generalized linear models are widely-used statistical techniques. As an extension, generalized partial linear models utilize semiparametric methods and augment the usual parametric terms by a single nonparametric component...
Continuous optimization approaches for clustering via minimum sum of squares
Akteke-Ozturk, Basak; Weber, Gerhard Wilhelm; Kropat, Erik (2008-05-23)
In this paper, we survey the usage of semidefinite programming (SDP), and nonsmooth optimization approaches for solving the minimum sum of squares problem which is of fundamental importance in clustering. We point out that...
Suzaku Analysis of A1800
Aktekin, E.; GÖK, FATMA; Hudaverdi, M.; Sezer, Ali Devin; ERCAN, ENİSE NİHAL (2009-09-24)
In this work, we present results of the analysis of data the Abell 1800 cluster of galaxies obtained from X-ray observations by the Suzaku satellite. A1800 is a nearby (z=0.0755) cluster, located at RA=13h49m41s, DEC=+28d0...