Vector quantization

During the past ten years Vector Quantization (VQ) has developed from a theoretical possibility promised by Shannon's source coding theorems into a powerful and competitive technique for speech and image coding and compression at medium to low bit rates. In this survey, the basic ideas behind the design of vector quantizers are sketched and some comments made on the state-of-the-art and current research efforts

On Using Blockchains for Safety-Critical Systems

Innovation in the world of today is mainly driven by software. Companies need to continuously rejuvenate their product portfolios with new features to stay ahead of their competitors. For example, recent trends explore the application of blockchains to domains other than finance. This paper analyzes the state-of-the-art for safety-critical systems as found in modern vehicles like self-driving cars, smart energy systems, and home automation focusing on specific challenges where key ideas behind blockchains might be applicable. Next, potential benefits unlocked by applying such ideas are presented and discussed for the respective usage scenario. Finally, a research agenda is outlined to summarize remaining challenges for successfully applying blockchains to safety-critical cyber-physical systems

Mi Familia

The relation between specific art practices and the ethical and mystical ideas behind my work constitutes the core of what I’m doing. Using analogies between nature and culture, pagan and contemporary tradition\u27s practices and symbols, primitive and modern art-making practices as a way to reflect on humankind\u27s relationship with nature

Three real-space discretization techniques in electronic structure calculations

A characteristic feature of the state-of-the-art of real-space methods in electronic structure calculations is the diversity of the techniques used in the discretization of the relevant partial differential equations. In this context, the main approaches include finite-difference methods, various types of finite-elements and wavelets. This paper reports on the results of several code development projects that approach problems related to the electronic structure using these three different discretization methods. We review the ideas behind these methods, give examples of their applications, and discuss their similarities and differences.Comment: 39 pages, 10 figures, accepted to a special issue of "physica status solidi (b) - basic solid state physics" devoted to the CECAM workshop "State of the art developments and perspectives of real-space electronic structure techniques in condensed matter and molecular physics". v2: Minor stylistic and typographical changes, partly inspired by referee comment

MASTER PAINTER WHO COMBINED THE TRADITION OF MINIATURE ART WITH THE MAJESTIC PAINTING OF UZBEKISTAN.

The article describes the life, creative and mentoring activity of the People's Artist of Uzbekistan Chingiz Ahmarov, and the magnificent decorative works that he left behind for the development of the visual art of Uzbekistan, as well as the ideas that are continued in the works of his students

Small Worlds

In this tutorial we present some basic ideas behind the notion of Small World. We review the state-of-the-art in the field, and put emphasis on some recent developments, in connection with analyzing the structure of the Web.-

Classifying videogames as art and why it matters now

This dissertation analyses the idea that videogames can be considered art in order to argue that wide ranging benefits could be seen if the institution recognised them as such. I have explored the idea that the institution is the key to progress the notion of videogames as art and both art museums and universities alike must be behind the progression of what is considered the artistic canon in order to create new opportunities in the field of making art. I have reviewed popular arguments for and against the inclusion of videogames in the institutional artistic canon and then considered videogames in the light of several theorist's ideas of what art is. Primarily I have looked at the ideas behind cluster theory and the theory of mass art as a way of justifying videogames as art. I have followed this with case studies of This War of Mine (2014) and the developer Sam Barlow who has produced many videogames including Aisle (1999), Silent Hill: Shattered Memories (2009), and Her Story (2015). Lastly I have considered what might be the long-term benefits of classifying videogames as art within the institution, primarily the enfranchisement of young women artists. I do this by reviewing the new National Curriculum in computer programming and considering how, in the light of Virginia Woolf's A Room of One's Own, this new education area will empower young women to be able to create art despite pressures that still persist with regards to the "proper" role of a woman in our society. It is my suggestion that all you need to create a work of videogame art is a basic computer, a standard UK education, and a room of your own - but only if the art institution recognises videogames as a legitimate form of art

Advances in Quantum Teleportation

Quantum teleportation is one of the most important protocols in quantum information. By exploiting the physical resource of entanglement, quantum teleportation serves as a key primitive in a variety of quantum information tasks and represents an important building block for quantum technologies, with a pivotal role in the continuing progress of quantum communication, quantum computing and quantum networks. Here we review the basic theoretical ideas behind quantum teleportation and its variant protocols. We focus on the main experiments, together with the technical advantages and disadvantages associated with the use of the various technologies, from photonic qubits and optical modes to atomic ensembles, trapped atoms, and solid-state systems. Analysing the current state-of-the-art, we finish by discussing open issues, challenges and potential future implementations.Comment: Nature Photonics Review. Comments are welcome. This is a slightly-expanded arXiv version (14 pages, 5 figure, 1 table