Browsing by Subject "Evaluation"

Now showing 1 - 13 of 13

Open Access
Assessing creativity in design education: Analysis of creativity factors in the first-year design studio
(Elsevier, 2012-05) Demirkan, H.; Afacan, Yasemin
The aim of this study is to explore creativity in design education and identify the creativity assessment indicators in the first-year design studio. A measurement tool of 41 items that consists of the artifact creativity, design elements and assembly of design elements were utilised for the assessment of 210 artifacts. Results oldie exploratory and confirmatory factor analysis indicated three main design creativity factors. The primary factor consists of the novelty and affective characteristics of artifact that are associated with its shape. The second factor has the elaboration characteristics that are integrated with its geometric and figure-ground relations and harmony of design elements. The third factor consists of rhythm, repetition, unity, order and number of design elements. (c) 2011 Elsevier Ltd. All rights reserved.
Open Access
Content-based retrieval of historical Ottoman documents stored as textual images
(IEEE, 2004) Şaykol, E.; Sinop, A. K.; Güdükbay, Uğur; Ulusoy, Özgür; Çetin, A. Enis
There is an accelerating demand to access the visual content of documents stored in historical and cultural archives. Availability of electronic imaging tools and effective image processing techniques makes it feasible to process the multimedia data in large databases. In this paper, a framework for content-based retrieval of historical documents in the Ottoman Empire archives is presented. The documents are stored as textual images, which are compressed by constructing a library of symbols occurring in a document, and the symbols in the original image are then replaced with pointers into the codebook to obtain a compressed representation of the image. The features in wavelet and spatial domain based on angular and distance span of shapes are used to extract the symbols. In order to make content-based retrieval in historical archives, a query is specified as a rectangular region in an input image and the same symbol-extraction process is applied to the query region. The queries are processed on the codebook of documents and the query images are identified in the resulting documents using the pointers in textual images. The querying process does not require decompression of images. The new content-based retrieval framework is also applicable to many other document archives using different scripts.
Open Access
Currency forecasting: an investigation of extrapolative judgement
(Elsevier, 1997) Wilkie-Thomson, M. E.; Önkal-Atay, D.; Pollock, A. C.
This paper aims to explore the potential effects of trend type, noise and forecast horizon on experts' and novices' probabilistic forecasts. The subjects made forecasts over six time horizons from simulated monthly currency series based on a random walk, with zero, constant and stochastic drift, at two noise levels. The difference between the Mean Absolute Probability Score of each participant and an AR(1) model was used to evaluate performance. The results showed that the experts performed better than the novices, although worse than the model except in the case of zero drift series. No clear expertise effects occurred over horizons, albeit subjects' performance relative to the model improved as the horizon increased. Possible explanations are offered and some suggestions for future research are outlined.
Open Access
Evaluating predictive performance of judgemental extrapolations from simulated currency series
(Elsevier, 1999) Pollock, A. C.; Macaulay, A.; Önkal-Atay, D.; Wilkie-Thomson, M. E.
Judgemental forecasting of exchange rates is critical for financial decision-making. Detailed investigations of the potential effects of time-series characteristics on judgemental currency forecasts demand the use of simulated series where the form of the signal and probability distribution of noise are known. The accuracy measures Mean Absolute Error (MAE) and Mean Squared Error (MSE) are frequently applied quantities in assessing judgemental predictive performance on actual exchange rate data. This paper illustrates that, in applying these measures to simulated series with Normally distributed noise, it may be desirable to use their expected values after standardising the noise variance. A method of calculating the expected values for the MAE and MSE is set out, and an application to financial experts' judgemental currency forecasts is presented.
Open Access
Evaluation of financial leasing contracts
(1992) Demirağ, Aliye Nejla
In this thesis, the financial leasing contract of company X that decided to acquire a machine, was evaluated. The main concern is whether to obtain the use of the machine by leasing or borrov;ing to buy. By comparing these two alternatives, the economic attractiveness or profitability of the two alternatives is analysed. These evaluations done by using three different borrowing rates and for two tax paying positions. The value of lease obtained for each case and three different discount rate are compared, the econonically benefitable alternative is analysed under Turkish legal framework.
Open Access
The (in)secure position of the design jury towards computer generated presentations
(Elsevier, 2005-05) Basa, I.; Senyapili, B.
The tendency towards computer aid in design presentations differs in academia than in the practicing field; practice seems to welcome computer aid in presentation, whereas in academia there seems to be a dilemma. In this study, we approach this duality based on our teaching experience within an interior architecture curriculum. First, we unfold the problematic to identify the contributing factors, then we observe the tendencies through a questionnaire with design students and interviews with design instructors, and finally we project upon our findings. We claim that the contributing factors to the problematic are: loss of author identity, problems of authenticity, and proficiency of the instructors in computers. Also we claim that although the transitional period of accommodating computer tools in design education in terms of presentation seems to be over, an adjustment period is starting anew. One of the powerful aspects of this period is not allowing hand skills to fade away.
Open Access
Kernels, inflations, evaluations, and imprimitivity of Mackey functors
(Elsevier, 2008-03-01) Yaraneri, E.
Let M be a Mackey functor for a finite group G. By the kernel of M we mean the largest normal subgroup N of G such that M can be inflated from a Mackey functor for G / N. We first study kernels of Mackey functors, and (relative) projectivity of inflated Mackey functors. For a normal subgroup N of G, denoting by PH, VG the projective cover of a simple Mackey functor for G of the form SH, VG we next try to answer the question: how are the Mackey functors PH / N, VG / N and PH, VG related? We then study imprimitive Mackey functors by which we mean Mackey functors for G induced from Mackey functors for proper subgroups of G. We obtain some results about imprimitive Mackey functors of the form PH, VG, including a Mackey functor version of Fong's theorem on induced modules of modular group algebras of p-solvable groups. Aiming to characterize subgroups H of G for which the module PH, VG (H) is the projective cover of the simple K over(N, -)G (H)-module V where the coefficient ring K is a field, we finally study evaluations of Mackey functors. © 2007 Elsevier Inc. All rights reserved.
Open Access
Optimization of the gain-bandwidth product of capacitive micromachined ultrasonic transducers
(IEEE, 2005-12) Olcum, S.; Senlik, M. N.; Atalar, Abdullah
Capacitive micromachined ultrasonic transducers (cMUT) have large bandwidths, but they typically have low conversion efficiencies. This paper defines a performance measure in the form of a gain-bandwidth product and investigates the conditions in which this performance measure is maximized. A Mason model corrected with finite-element simulations is used for the purpose of optimizing parameters. There are different performance measures for transducers operating in transmit, receive, or pulse-echo modes. Basic parameters of the transducer are optimized for those operating modes. Optimized values for a cMUT with silicon nitride membrane and immersed in water are given. The effect of including an electrical matching network is considered. In particular, the effect of a shunt inductor in the gain-bandwidth product is investigated. Design tools are introduced, which are used to determine optimal dimensions of cMUTs with the specified frequency or gain response.
Open Access
A supplier evaluation and selection system in Turk Tractor Factory
(1995) Aktaş, Pınar
The world is changing toward globalization. Therefore, the markets are becoming more and more competitive each day. It is harder for companies to be good performers. Realizing this fact, they are trying to have the highest contribution from different sources they have. This includes the financial sources as well as people. However, there is an important success key that should not be disregarded. These are the suppliers where 40- 60% of the total sales of manufacturing companies are spent. Knowing this, the companies should choose and use their suppliers at the highest maximum performance. This study establishes a system for the evaluation and selection of suppliers where an application will be carried out in a company in the automotive sector, Turk Tractor Factory.
Open Access
Temperature dependence of the energy of a vortex in a two-dimensional Bose gas
(Elsevier, 2004) Rajagopal, K. K.; Tanatar, Bilal; Vignolo, P.; Tosi, M. P.
We evaluate the thermodynamic critical angular velocity Ωc(T) for creation of a vortex of lowest quantized angular momentum in a strictly two-dimensional Bose gas at temperature T, using a mean-field two-fluid model for the condensate and the thermal cloud. Our results show that (i) a Thomas-Fermi description of the condensate badly fails in predicting the particle density profiles and the energy of the vortex as functions of T; and (ii) an extrapolation of a simple Thomas-Fermi formula for Ωc(0) is nevertheless approximately useful up to T≃0.5Tc.
Restricted
The elements of organizational performance
(1968) Seashore, Stanley E.
Open Access
To design versus to understand design: The role of graphic representations and verbal expressions
(Elsevier, 1999) Ulusoy, Z.
While the primary objective of design education is essentially teaching how to design, the process of understanding a design product is another important and obvious goal of design education. Here, the aim is to find out how the capacity of the students to design relates to their capacity to understand and evaluate design. In a survey done in the freshman studio, students were asked to diagrammatic ally express the design ideas of the projects they were shown, to criticize the projects verbally and to grade them. Later, the diagrams produced by the students, their verbal evaluations of the projects, the grades they have assigned to these projects, and their own projects' jury grades are compared to find out the interaction among these variables. © 1999 Elsevier Science Ltd. All rights reserved.
Open Access
Towards a detailed understanding of preschool children’s memory-related functioning and emotion regulation: the role of parents’ observed reminiscence style, memory valence, and parental gender
(American Psychological Association Inc., 2020) Van Der Kaap-Deeder, J.; Soenens, B.; Mouratidis, Athanasios; De Pauw, S.; Krøjgaard, P.; Vansteenkiste, M.
This study examined the role of parents’ reminiscing style in preschoolers’ memory-related functioning and general emotion regulation. In 87 families, each parent rated their child’s (Mage 4.07 years, SD 0.80) emotion regulation and discussed a positive and a negative memory with their child (resulting in 275 conversations). Multilevel analyses showed that children’s rated engagement during the conversation was higher when parents were observed to use autonomy-supportive, elaborative, and positive evaluative reminiscing, while children’s rated disaffection was predicted by low autonomy support, low elaboration, and negative evaluation. Parental positive evaluation also related positively to children’s memory performance. With respect to emotion regulation, only parents’ negative evaluation when talking about negative memories related to higher emotional lability.