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Application of Optimal Approach in Load Forecasting and Unit Commitment ProblemsLiao, Gwo-Ching 25 October 2005 (has links)
An Integrated Chaos Search Genetic Algorithm (CGA) /Fuzzy System (FS), Tabu Search (TS) and Neural Fuzzy Network (NFN) method for load forecasting is presented in this paper. A Fuzzy Hyper-Rectangular Composite Neural Networks (FHRCNNs) was used for the initial load forecasting. Then we used CGAFS and TS to find the optimal solution of the parameters of the FHRCNNs, instead of Back-Propagation (BP). First the CGAFS generates a set of feasible solution parameters and then puts the solution into the TS. The CGAFS has good global optimal search capabilities, but poor local optimal search capabilities. The TS method on the other hand has good local optimal search capabilities. We combined both methods to try and obtain both advantages, and in doing so eliminate the drawback of the traditional ANN training by BP. This thesis presents a hybrid Chaos Search Immune Algorithm (IA)/Genetic Algorithm (GA) and Fuzzy System (FS) method (CIGAFS) for solving short-term thermal generating unit commitment problems (UC). The UC problem involves determining the start-up and shutdown schedules for generating units to meet the forecasted demand at the minimum cost. The commitment schedule must satisfy other constraints such as the generating limits per unit, reserve and individual units. We combined IA and GA, then added chaos search and fuzzy system approach in it. Then we used the hybrid system to solve UC. Numerical simulations were carried out using four cases; ten, twenty and thirty thermal units power systems over a 24-hour period.
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Working memory load and Stroop interference effect : a thesis submitted in partial fulfilment of the requirements for the degree of Masters of Science in Psychology /Gao, Quan Ying. January 2006 (has links)
Thesis (M. Sc.)--University of Canterbury, 2006. / Typescript (photocopy). Includes bibliographical references (leaves 20-22). Also available via the World Wide Web.
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Is working memory load a critical factor in distractor processing? : a thesis submitted in partial fulfilment of the requirements for the degree of Masters of Science in Psychology /Davis, Marion. January 2007 (has links)
Thesis (M. Sc.)--University of Canterbury, 2007. / Typescript (photocopy). Includes bibliographical references (leaves 35-40). Also available via the World Wide Web.
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Working memory and divided attention : the effects of frontal and temporary lobe lesions on short-term memoryCowey, Carolyn May January 1997 (has links)
No description available.
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The nature of memory for shape.January 2011 (has links)
Li, Shiqi. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (p. 21-22). / Abstracts in English and Chinese. / Abstract --- p.i / Abstract in Chinese --- p.ii / Acknowledgements --- p.iii / Tables of Contents --- p.iv / List of Figures --- p.v / Chapter Chapter 1: --- Introduction --- p.1 / The Nature of Shape: Spatial or Featural --- p.1 / Object Short-Term Memory vs. Spatial Short-Term Memory --- p.4 / The Present Study --- p.5 / Chapter Chapter 2: --- General Method --- p.9 / Participants --- p.9 / Stimuli --- p.9 / Procedure --- p.10 / Chapter Chapter 3: --- Experiment 1 Colors vs. Dot Patterns --- p.14 / Results and Discussion --- p.14 / Chapter Chapter 4: --- Experiments 2 & 3 Ellipses vs. Dot Patterns/Colors --- p.16 / Results and Discussion --- p.16 / Chapter Chapter 5: --- General Discussion --- p.18 / "Treatment of ""Shape"" in Previous Studies" --- p.18 / Structural Description in Object Recognition --- p.19 / References --- p.21
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A study of short-term remembering in the possum: Using a Delayed-Matching-To-Sample Procedure.Hardaker, Bethany Jane January 2006 (has links)
In Experiment one 7 Brushtail possums were trained, using food, to perform a Delayed-Matching-To-Sample procedure using still and flickering light stimuli, over a 0, 1 and 2 second delay. A criterion of 80 percent correct for 5 consecutive days was set for the requirement to probe test. Probe session delays were 0, 0.5, 1, 2, 4, and 8 seconds. Performance was analysed using the measure of discrimination log d. Log d = 1 at the possums training delay and dropped back to log d = 0 at the longer inexperienced delays. The possums performance at this task was only adequate, so in case the stimuli were causing discrimination difficulties they were changed for the following experiment to horizontal and vertical light stimuli. Experiment two used the horizontal and vertical light stimuli to further test DMTS in possums. The possum's responding stayed at 50 percent correct, or chance, so the task was changed to a Simultaneous-Choice procedure. However, this did not have any effect on improving their results with responding accuracy remaining at 50 percent correct. Experiment three involved a conditional discrimination procedure, which was implemented to find out whether the possums could in fact discriminate between a horizontal and vertical light. All the possums in this experiment reached 80 percent correct overall and at responding to either a horizontal or vertical light. These results are enough to conclude that it was not the stimuli used in the previous two experiments which that had been causing the difficulties but the task itself. It is not known exactly why the possums were so unsuccessful in performing a DMTS or MTS task. More research into DMTS in possums in greatly needed and would offer a better understanding of the results of this study.
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Cultural differences on the children's memory scaleCash, Deborah Dyer 15 May 2009 (has links)
Memory is an essential component for learning. Deficits in verbal short-term
memory (STM) and working memory (WM) are thought to hinder language learning,
reading acquisition, and academic achievement. The Children’s Memory Scale (CMS) is
an assessment instrument used to identify memory and learning deficits and strengths in
children ages five through 16. This study investigated the impact of culture and parent
educational level (PEL) on student performance on the Children’s Memory Scale using
the CMS standardization data. The major question addressed was: Will CMS subtest
performance differ significantly between ethnic groups or as a function of PEL?
The results of this study support a relationship between STM and WM
performance and culture. Culture as defined by ethnicity minimally impacted student
subtest performance on the CMS when PEL was taken into account. In contrast, PEL
was significantly associated with student subtest performance within each ethnic group.
Student subtest performance improved with each increase in PEL regardless of ethnicity.
CMS subtest performance of Hispanic and African American students was most affected by PEL; however, no difference occurred in subtest performance by ethnicity or as a
function of PEL for African American and Hispanic students on the Family Pictures
subtest which examines visual and auditory memory processes through recall of
everyday life tasks in meaningful context. Although statistical significance was found
between CMS subtest performance and cultural factors, the effect sizes were mainly in
the small range and variance was not specific to any one subtest. Larger effect sizes were
found on verbal subtests which in previous studies have been found to be most impacted
by quality of schooling and lower PELs. Mean score differences did not exceed one
standard deviation with the exception of one subtest. The results of this study provide a
better understanding of the effect of culture and PEL on memory and learning.
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The dopamine imbalance hypothesis a potential neurobiological model for working memory impairment in schizotypy /Smith, Nathan Tye. January 2007 (has links)
Thesis (M.S.)--State University of New York at Binghamton, Department of Psychology, 2007. / Includes bibliographical references (leaves 38-49).
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Semantic working memory : evidence for a separate system that maintains meaning /Shivade, Geeta. January 2001 (has links)
Thesis (Ph. D.)--University of Oregon, 2001. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 116-127). Also available for download via the World Wide Web; free to University of Oregon users.
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Short-term missions a gateway to church renewal /Scherer, Kevin. January 2002 (has links)
Thesis (M. Div.)--St. Vladimir's Orthodox Theological Seminary, 2002. / Abstract. Includes bibliographical references (leaves 69-72).
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