Regression in random design and Bayesian warped wavelets estimators

In this paper we deal with the regression problem in a random design setting. We investigate asymptotic optimality under minimax point of view of various Bayesian rules based on warped wavelets and show that they nearly attain optimal minimax rates of convergence over the Besov smoothness class considered. Warped wavelets have been introduced recently, they offer very good computable and easy-to-implement properties while being well adapted to the statistical problem at hand. We particularly put emphasis on Bayesian rules leaning on small and large variance Gaussian priors and discuss their simulation performances comparing them with a hard thresholding procedure

CHANGING ROAD TRAFFIC NOISE IN HANOI OF PREVIOUS 10 YEARS

Joint Research on Environmental Science and Technology for the Eart

Using design to foster startup growth - a multiple case study

Nowadays, the impact of design in supporting business growth and technology development is by far self-evident. Research from both academic and industry leaders has pointed to the same conclusion: to succeed and outperform your competitors, companies need to use design. However, when it comes to using design in startups, there is a certain degree of resistance. Compared to wealthy, resourceful corporations, startup teams might have a slightly different view on the use of design, especially in the beginning of their venture. Design, with its highly intangible values and impacts, appears difficult to sell to many startup founders as an important ingredient for their business strategy. For this thesis 7 company founders and design leaders from six different companies were interviewed. All participating companies are recognized as highly design-oriented and are based in Helsinki region. The interviews focus on the participants’ observation and evaluation on the impact of design in their organisation, including their approach on applying design in business strategy and operational activities. The results offer new perspective on the role and values of design in startup teams, and a detailed analysis on startups’ current design practice. The roles of design in startups were identified in five key aspects: product development, business strategy, branding, culture, and operation. Design appears to play an important role in different stages of product development, ensuring that the process is user-centered and design solution efficiently covers user needs. Designers are involved in different activities of business strategy development to support the founding and management team clarity the core questions. Design has also proven to be the key element in shaping brand image. For some companies, having design presence in the company has a strong impact on their company culture and can greatly enhance their operational productivity. Companies approach on using design were studied in three main themes: use of design resources, how companies measure design impact, and common challenges that startup teams often face when investing design, as well as designers’ challenges. Based on the analysis from each theme, a list of key practices was proposed, in order to help business founders and founding teams to better prepare and utilise the advantages of design. The role of design is constantly and increasingly recognised in different aspects of business development. For startups team, the need for using design has becoming as clear as ever. This study attempts to narrow the bridge between business entrepreneurs and design professionals in order to generate productive and efficient use of design in startup setting