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Alternativ Hollywoodestetik : En studie över fyra filmers förhållande till Classical Hollywood CinemaGruffman, Mathias January 2007 (has links)
<p>This essay studies stylistic differences as well as homage’s between four films produced in two different contexts, New Hollywood and alternative aesthetics today in America. This is done in order to answer the question how alternative Hollywood works against or with Classical Hollywood Cinema in cases like style and narrative. The Work is done by a theory of neoformalism and the definition made by them of Classical Hollywood Cinema. The essay finds small changes, although kind of important witch are mainly shown in editing and causal motivation. It’s found that, in these films Classical Hollywood Cinema still contributes with a huge part.</p>
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Board composition and firm performance : a quantitative study on Chinese listed companiesWu, Wei January 2009 (has links)
No description available.
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Contrast properties of entropic criteria for blind source separation : a unifying framework based on information-theoretic inequalitiesVrins, Frédéric D. 02 March 2007 (has links)
In the recent years, Independent Component Analysis (ICA) has become a fundamental tool in adaptive signal and data processing, especially in the field of Blind Source Separation (BSS). Even though there exist some methods for which an algebraic solution to the ICA problem may be found, other iterative methods are very popular. Among them is the class of information-theoretic approaches, laying on entropies. The associated objective functions are maximized based on optimization schemes, and on gradient-ascent techniques in particular. Two major issues in this field are the following: 1) Does the global maximum point of these entropic objectives correspond to a satisfactory solution of BSS ?
and 2) as gradient techniques are used, optimization algorithms look in fact for local maximum points, so what about the meaning of these local optima from the BSS problem point of view?
Even though there are some partial answers to these questions in the literature, most of them are based on simulation and conjectures; formal developments are often lacking. This thesis aims at filling this lack and providing intuitive justifications, too. We focus the analysis on Rényi's entropy-based contrast functions. Our results show that, generally speaking, Rényi's entropy is not a suitable contrast function for BSS, even though we recover the well-known results saying that Shannon's entropy-based objectives are contrast functions. We also show that the range-based contrast functions can be built under some conditions on the sources.
The BSS problem is stated in the first chapter, and viewed under the information (theory) angle. The two next chapters address specifically the above questions. Finally, the last chapter deals with range-based ICA, the only ``entropy-based contrast' which, based on the enclosed results,
is also a <i>discriminant</i> contrast function, in the sense that it is theoretically free of spurious local optima. Geometrical interpretations and surprising examples are given. The interest of this approach is confirmed by testing the algorithm on the MLSP 2006 data analysis competition benchmark; the proposed method outperforms the previously obtained results on large-scale and noisy mixture samples obtained through ill-conditioned mixing matrices.
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A Novel Hybrid Dimensionality Reduction Method using Support Vector Machines and Independent Component AnalysisMoon, Sangwoo 01 August 2010 (has links)
Due to the increasing demand for high dimensional data analysis from various applications such as electrocardiogram signal analysis and gene expression analysis for cancer detection, dimensionality reduction becomes a viable process to extracts essential information from data such that the high-dimensional data can be represented in a more condensed form with much lower dimensionality to both improve classification accuracy and reduce computational complexity. Conventional dimensionality reduction methods can be categorized into stand-alone and hybrid approaches. The stand-alone method utilizes a single criterion from either supervised or unsupervised perspective. On the other hand, the hybrid method integrates both criteria. Compared with a variety of stand-alone dimensionality reduction methods, the hybrid approach is promising as it takes advantage of both the supervised criterion for better classification accuracy and the unsupervised criterion for better data representation, simultaneously. However, several issues always exist that challenge the efficiency of the hybrid approach, including (1) the difficulty in finding a subspace that seamlessly integrates both criteria in a single hybrid framework, (2) the robustness of the performance regarding noisy data, and (3) nonlinear data representation capability.
This dissertation presents a new hybrid dimensionality reduction method to seek projection through optimization of both structural risk (supervised criterion) from Support Vector Machine (SVM) and data independence (unsupervised criterion) from Independent Component Analysis (ICA). The projection from SVM directly contributes to classification performance improvement in a supervised perspective whereas maximum independence among features by ICA construct projection indirectly achieving classification accuracy improvement due to better intrinsic data representation in an unsupervised perspective. For linear dimensionality reduction model, I introduce orthogonality to interrelate both projections from SVM and ICA while redundancy removal process eliminates a part of the projection vectors from SVM, leading to more effective dimensionality reduction. The orthogonality-based linear hybrid dimensionality reduction method is extended to uncorrelatedness-based algorithm with nonlinear data representation capability. In the proposed approach, SVM and ICA are integrated into a single framework by the uncorrelated subspace based on kernel implementation.
Experimental results show that the proposed approaches give higher classification performance with better robustness in relatively lower dimensions than conventional methods for high-dimensional datasets.
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Across-frequency processing in convolutive blind source separationjoern@anemueller.de 30 July 2001 (has links) (PDF)
No description available.
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Development of a branch and price approach involving vertex cloning to solve the maximum weighted independent set problemSachdeva, Sandeep 12 April 2006 (has links)
We propose a novel branch-and-price (B&P) approach to solve the maximum weighted independent set problem (MWISP). Our approach uses clones of vertices to create edge-disjoint partitions from vertex-disjoint partitions. We solve the MWISP on sub-problems based on these edge-disjoint partitions using a B&P framework, which coordinates sub-problem solutions by involving an equivalence relationship between a vertex and each of its clones. We present test results for standard instances and randomly generated graphs for comparison. We show analytically and computationally that our approach gives tight bounds and it solves both dense and sparse graphs quite quickly.
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Styrideal och konflikt : Om friskoleetablering i tre norrländska kommunerNyhlén, Jon January 2011 (has links)
During the last decades, the public sector in Western democracies has undergone drastic changes. These changes have meant privatization and a more diverse service provision. Because of privatization, activities that were previously reserved for the public sector can now be conducted by the private sector. This has led to the traditional hierarchical model to be challenged by a new governing style throughmarket mechanisms, which was introduced during the 1980s. Both the hierarchical model and market model have since been supplemented by the network model that was introduced in the 1990s. The new organization has meant that steering is currently done in a complex environment with varying outcomes. In the foreground of the theoretical concepts that captures the development describedearlier is governance. The starting point of the governance perspective is that the traditional bureaucracy model for governing is challenged by new forms of organization and steering. In the early 1990s, it became possible, due to a change in legislation, to startindependent schools with public funding. This legislation change has had a major impact on the Swedish school system in terms of organization and steering issues. The purpose of this thesis is to investigate how the ideals of hierarchy, market andnetworking appear in the municipal steering of the local school system, and how these ideals affect the development and the intensity of the conflicts in the surveyed municipalities. The focus of the empirical study is three municipalities from the northern parts of Sweden, which are equal in terms of population, number of school pupils, the number of independent schools and with the samepolitical majority. The overall result of the thesis is that different governing ideals affect the levels of conflict in different ways. The municipality governed by marked ideals exhibit thehighest degree of conflict and the municipality governed by the network ideal exhibit lower levels of conflict. The municipality governed by the hierarchical ideal in the middle of the conflict scale.
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Sales and Marketing Strategy in the IT Industry - Collaborating with Independent Software VendorsAntvik, Niklas, Bihammar, Patrik January 2005 (has links)
The IT industry is characterised by rapid changes and an increased level of consolidation and competition. Hardware and software developers are moving away from proprietary technologies to open-standards based technology. This makes it more difficult for large hardware vendors, such as Hewlett Packard (HP) and IBM, to lock their customers and partners to proprietary solutions. Therefore, in order to keep and increase its market share, HP needs to improve its collaboration with partners. The partners, especially local and regional independent software vendors (ISV), are important due to their applications focused on solving business problems, their ability to provide industry relevance to HP’s products and their ability to influence what kind of hardware and software platforms the end-customers will choose. We have identified key market characteristics, the ISVs’ key needs and challenges, as well as what they consider crucial in order for them to recommend a certain vendor’s hardware platform. Companies in the IT industry face several unique challenges; one is that there often exist conflicting interests between the different industry members, e.g. competitors collaborating with each other. This puts extra pressure on clarifying the rules of engagement between the collaborating parties. The ISVs are generally agnostic to which hardware platform the customers buy as long as their applications run on the specific platform, therefore the ISVs’ vendor preference is often based on more intangible relationship factors. Factors that affect and decide the ISVs’ preference are e.g. their existing vendor relationships, ease of doing business, clear point of contact and clear rules of engagement. Furthermore, many of the ISVs are interested in having joint- business planning and go-to-market strategies with HP. In order to leverage hardware, we recommend that HP tries to tie the ISVs to them and form closer relationships with the ISV community. (HP must however carefully evaluate the value of the individual ISVs and what they can offer.) The recommendations consist mainly of how to select the relevant ISVs and, after the selection, how the ISVs should be categorised and managed by utilising HP’s partner portal for developers. This would enable HP to engage more efficiently with key partners, which in turn would lead to increased leverage of HP hardware.
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Board composition and firm performance : a quantitative study on Chinese listed companiesWu, Wei January 2009 (has links)
No description available.
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Nya direktiv för små aktiebolag? : - ett ägarperspektivLax, Catarina, Eklund, Anneli January 2006 (has links)
Av Sveriges idag 300 000 aktiebolag är 80-85 procent mikrobolag med färre än 10 anställda och mindre än 3 miljoner i omsättning. Mikrobolagen har därför stor be-tydelse för svenskt näringsliv och samhällets utveckling. Förutsättningarna för dessa bolags tillväxt och utveckling bör av denna anledning främjas, vilket kräver att regelverken är anpassade till deras villkor. Revisionsplikten för små aktiebolag är en av de regelförenklingar som diskuteras, där nyttan och kostnaden för revision står i fokus. Syftet med uppsatsen är att beskriva hur ägarna till mikrobolag upplever revisionsplikten, hur de väljer att agera vid ett avskaffande, samt analysera bakomliggande orsaker. I denna uppsats används en kvantitativ metod då antal förekomster av visst agerande vill undersökas. Den empiriska studien är gjord i form av en webbenkät skickad till 200 mikrobolag i Jönköpings län. Resultaten visar att ägarna till mikrobolag upplever att de har störst nytta av revision jämfört med övriga intressenter, dock anses även stat och kommun ha stor nytta av revision. Vidare framkom att de vanligaste argumenten för revision är att den ses som ett kvitto eller kvalitetsstämpel. 74 procent av ägarna uppger att de skulle fortsätta revideras om revisionsplikten avskaffades, detta då nyttan upplevs vara större än kostnaden. Dock anser 68 procent att revision bör vara efterfrågebaserad istället för tvingande. Mikrobolagen upplever revisorns roll som övervägande granskande. Emellertid spelar även rådgivning en stor roll, då hela 89 procent av respondenterna anser att reglerna för mikrobolag är alltför komplexa och hjälp behövs från kompetent rådgivare. Sannolikheten att mikrobolagen skulle vända sig till en redovisningsbyrå istället för revisionsbyrå om plikten avskaffas är enligt 44 procent stor eller mycket stor. 13 procent skulle inte alls kunna tänka sig ett byte. Slutsatsen är att mikrobolagen upplever revision som positivt och att de skulle fortsätta revideras om plikten avskaffades, dock vill de flesta att revisionen ska vara frivillig och efterfrågebaserad, vilket för en del mikrobolag skulle innebära ett byte från att ha anlitat en revisionsbyrå för revisions- och rådgivningstjänster till att istället vända sig till en redovisningsbyrå. / Sweden has today 300 000 limited companies of which 80-85 percent are considered as micro companies with less than 10 employees and a yearly turnover not larger than 3 million SEK. The micro companies are therefore of great importance for Swedish business life and development of Swedish society. The requirements for these companies’ growth and development should therefore be supported, which require that regulations are adapted to their conditions. Statutory audit for small private limited companies is one of the simplifications of regulations that is discussed, where the benefits and costs of audit are in focus. The purpose of this thesis is to describe how owners of micro companies perceive statutory audit, to examine how they chose to act if it is abolished, and to analyze underlying causes. In this thesis a quantitative method was used since the numbers of occur-rences of certain actions were examined. The empirical study was constructed as a web based questionnaire sent to 200 micro companies in Jönköping County. The results show that owners of micro companies perceive greatest benefits from audit compared to other interested parties, however, the government and municipality also are considered as benefiting from audit. Further, the most common arguments pro audit are that audit is considered as a receipt or a quality guarantee. 74 percent of the owners state that they would continue to demand audit even if the statutory audit was abolished, since the benefits are perceived as greater than the costs. However, 68 percent believe that audit should be based on demand instead of being compulsory. The micro compa-nies experience the role of the auditor as mainly reviewing. Though, the role as adviser is also of great importance when as much as 89 percent of the respon-dents believe that small companies’ regulations are too complex and that help from a qualified advisor is needed. The probability that micro companies would turn to a firm of accountancy instead of a firm of audit if the obligation was abolished is according to 44 percent large or very large. 13 percent would not consider a change at all. The conclusion is that micro companies perceive audit as a positive service, and that they still would be reviewed if the obligation was abolished. Though, most of the companies want audit to be voluntary and based on demand, which to some micro companies would imply a change from consulting a firm of audit for accounting and consulting services, and instead turn to a firm of accountancy.
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