This paper proposes the first peer-to-peer network and lookup algorithm that for any 0 < ε has worst case stretch bounded by 1+ ε. The construction uses an expected logarithmic number of links. It is suitable for a very realistic class of metrics in which the only restriction on density is a growth-bound. It is completely decentralized and readily deployable in dynamic networks.

☆ We are grateful to Kaushik Basu, Patrick Bolton, Rocc Debraj Ray for useful discussions. We also thank two an pants at the May 2009 “Microfoundations of Developme the WIDER conference on Land Inequality and Conflict their comments and feedback. We thank the Internation nancial support under grant RA-2009-11-025. ⁎ Corresponding author. Tel.: +1 617 353 4392. E-mail address: [email protected] (D. ...

Simultaneous measurements with the TwoColor emission and Laser-Induced-Incandescence techniques on a diffusion laminar LPG bunsen flame were performed. The acquired images were filtered, perspective corrected and processed via an on purpose made procedure in order to reduce the measuring error. For quantitative measurements of the soot volume fraction and temperature a tungsten lamp calibration...

New Zealand has a legal 3D cadastre, and has done since the inception of its cadastral survey and tenure systems around 150 years ago. However, the digital representation of the cadastre is 2D with 3D situations handled via static plan, section and elevation images and supporting textual information. Work is currently underway to develop a 3D digital cadastre that will enable the 3D spatial ext...

Adaptation of existing Information Extraction (IE) systems to new languages and domains is the focus of much current research, but progress is often hindered by the lack of available resources to enable developers to get a new system up and running fast. It has previously been shown that a good set of gazetteer lists can have a vital role here, but creation of lists for a new language or domain...

This paper describes an approach to adapt an existing multilingual Open-Domain Question Answering (ODQA) system for factoid questions to a Restricted Domain, the Geographical Domain. The adaptation of this ODQA system involved the modification of some components of our system such as: Question Processing, Passage Retrieval and Answer Extraction. The new system uses external resources like GNS G...

A dual-parameter optical sensor has been realized by UV-writing a long-period and a Bragg grating structure in D-fiber. The hybrid configuration permits the detection of the temperature from the latter and measuring the external refractive index from the former responses, respectively. The employment of the D-fiber allows as effective modification and enhancement of the device sensitivity by cl...

Only 17.5 % of all Indian homes use LPG as their primary cooking fuel, with 90 % of rural households dependent on some form of biomass. To improve the quality of life of such a large number of people, it is imperative that clean and renewable alternatives are provided for cooking. This paper presents one such. An ethanol stove running on 50 % ethanol-water mixture has been developed at Nimbkar ...

Values of some characteristic parameters of confined explosions for LPG (Liquefied Petroleum Gas)-air quiescent mixtures are examined in correlation with the initial pressure of fuel-air mixture and fuel/air ratio. The explosion pressures, the explosion times and the maximum rates of pressure rise were obtained from experiments made at ambient initial temperature in two closed vessels with cent...

The relationship between individual cognition and cultural phenomena at the society level can be transformed by cultural transmission (Kirby, Dowman, & Griffiths, 2007). Top-down models of this process have typically assumed that individuals only adopt a single linguistic trait. Recent extensions include ‘bilingual’ agents, able to adopt multiple linguistic traits (Burkett & Griffiths, 2010). H...