Date: Apr 22, 2013 | Type: Paper | Attachment: Download File ›
Pillar: Core Technologies & Methods
Hub: Technologies and Platforms
Authors: A. Rau-Chaplin, B. Varghese, Z. Yao
Fields: MapReduce model, secondary uncertainty, risk modelling, aggregate risk analysis
Summary: The design and implementation of an extensible framework for performing exploratory analysis of complex property portfolios of catastrophe insurance treaties on the Map-Reduce model is presented in this paper. The framework implements Aggregate Risk Analysis, a Monte Carlo simulation technique, which is at the heart of the analytical pipeline of the modern quantitative insurance/reinsurance pipeline.
Date: Oct 01, 2012 | Type: Paper |
Ext. Link: Click Here ›
Pillar: Core Technologies & Methods
Hub: Technologies and Platforms
Authors: Eric Mason, Andrew Rau-Chaplin, Kunal Shridhar, Blesson Varghese2 and Naman Varshne
Fields: post-event earthquake analysis; catastrophe modelling; loss estimation; loss visualization
Summary: Catastrophe models capable of rapid data ingestion, loss estimation and visualization are required for postevent analysis of catastrophic events such as earthquakes. This paper describes the design and development of the Automated Post-Event Earthquake Loss Estimation and Visualization (APE-ELEV) system for real-time estimation and visualization of losses incurred due to earthquakes. A model for estimating expected losses due to earthquakes in near realtime is described and implemented. Since immediately postevent data is often available from multiple disparate sources, a geo-browser is described that helps users to visualize and integrate hazard, exposure and loss data.
Date: Oct 01, 2012 | Type: Paper |
Conf: International Conference for High Performance Computing, Networking, Storage, and Analysis | Ext. Link: Click Here ›
Pillar: Core Technologies & Methods
Hub: Technologies and Platforms
Authors: A. K. Bahl, O. Baltzer, A. Rau-Chaplin and B. Varghese
Fields:
Summary: At the heart of the analytical pipeline of a modern quantitative insurance/reinsurance company is a stochastic simulation technique for portfolio risk analysis and pricing process referred to as Aggregate Analysis. This paper explores parallel methods for aggregate risk analysis risk analysis.
Date: Sep 28, 2012 | Type: Article |
Journal: Journal of Multivariate Analysis - Special Issue on Copula Modeling and Dependence | Ext. Link: Click Here ›
Pillar: Core Technologies & Methods
Authors: Marius Hofert, Martin Mächler, Alexander J. McNeil
Fields:
Summary: This paper gives theoretical insight about how to compute complicated densities in high dimensions (required for estimation)
Date: Sep 01, 2012 | Type: Paper |
Conf: International Workshop on Cloud Technologies for High Performance Computing | Ext. Link: Click Here ›
Pillar: Core Technologies & Methods
Hub: Technologies and Platforms
Authors: Ishan Patel, Andrew Rau-Chaplin and Blesson Varghese
Fields: Cloud computing; Amazon Cloud Services; Parallel Analytics; R and Snow
Summary: Analytical workloads abound in application domains ranging from computational finance and risk analytics to engineering and manufacturing settings. In this paper the authors describe a Platform for Parallel R-based Analytics on the Cloud (P2RAC. The goal of this platform is to allow an Analyst to take a simulation or optimization job (both the code and associated data) that runs on their personal workstations and with minimum effort have them run on large-scale parallel cloud infrastructure. If this can be facilitated gracefully, an Analyst with strong quantitative but perhaps more limited development skills can harness the computational power of the cloud to solve larger analytically problems in less time. P2RAC is currently designed for executing parallel R scripts on the Amazon Elastic Computing Cloud infrastructure. Preliminary results obtained from an experiment confirm the feasibility of the platform.
Date: Jun 22, 2012 | Type: Article |
Conf: Nokia Data Challenge Workshop, Pervasive 2012, 20 - 22 Jun 2012, Newcastle, UK | Ext. Link: Click Here ›
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby, Roger Beecham, Jo Wood
Fields:
Summary: In this paper, the authors designed and applied novel interactive visualisation to investigate how social networks - derived from smartphone logs - are embedded in time and space.
Date: May 01, 2010 | Type: Paper |
Ext. Link: Click Here ›
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, Jason Dykes
and Jo Wood.
Fields: GIS & Geovisualisation
Summary: Presents a new technique for the visual exploration of origins (O) and destinations (D) arranged in geographic space.
Date: May 01, 2010 | Type: Paper |
Ext. Link: Click Here ›
Pillar: Core Technologies & Methods
Hub: Science & Innovation
Authors: Marius Hofert
Fields: Statistics & Modelling
Summary: Efficient sampling algorithms for both Archimedean and nested Archimedean copulas are presented
Date: Mar 18, 2010 | Type: Paper |
Ext. Link: Click Here ›
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, Jason Dykes
and Jo Wood.
Fields: GIS & Geovisualisation
Summary: A presentation of rectangular hierarchical cartograms for mapping socio-economic data and a demonstration of cartograms by mapping the Office for National Statistics Output Area Classification (OAC) by unit postcode (1.52 million in Great Britain) through the postcode hierarchy, using these to explore spatial variation.
Date: Jan 01, 2010 | Type: Paper |
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, Jason Dykes
and Jo Wood.
Fields: GIS & Geovisualisation
Summary: This design paper presents new guidance for creating map legends in a dynamic environment. It suggests is a set of guidelines for legend design in a visualization context and a series of illustrative themes through which they may be expressed.
Date: Jan 01, 2010 | Type: Paper | Attachment: Download File ›
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, Jason Dykes
and Jo Wood. Robert Radburn, Roger Beecham.
Fields: GIS & Geovisualisation
Summary: At Leicestershire County Council, spatial treemaps are used to analyse labour markets and commuting behaviour. This novel visualization technique, presented at InfoVis 2008, has resulted in a number of insights and discoveries.
Date: Jan 01, 2010 | Type: Paper | Attachment: Download File ›
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, Jason Dykes
and Jo Wood.
Fields: GIS & Geovisualisation
Summary: The demonstration of a new approach to collaborative visual analysis, in which descriptions of graphics are shared online. HiVE – a high-level descriptive language – captures the way in which graphics are built and configured.
Date: Apr 01, 2009 | Type: Article |
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, David Stephenson
, Jason Dykes
and Jo Wood. Rachel Lowe and Tim Jupp
Fields: Climate Change
Summary: Seasonal climate forecasts are used by climate scientists, government departments, utility agencies, health agencies and in agriculture. Uncertainties in environmental data and in numerical prediction models make such forecasts inherently probabilistic. Good decisions require that this uncertainty in predictions be communicated to users. Some established methods have limitations, prompting this collaborative work between data visualizers and climate scientists facilitated by the Willis Research Network.
Date: Jan 01, 2009 | Type: Paper |
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, Jason Dykes
and Jo Wood. Naz Khalili-Shavarini and David Mountain
Fields: GIS & Geovisualisation
Summary: A team of five worked on this challenge to identify a possible criminal structure within the Flitter social network. This summary of the work emphasises one of those applications detailing the geographic analysis and uncertainty handling of the network data.
Date: Jan 01, 2009 | Type: Article |
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, Jason Dykes
and Jo Wood. Andrew Crooks
Fields: GIS & Geovisualisation
Summary: The price of property and how it varies spatially within cities through time can be linked to the economic and social processes of urban systems. Treemaps (Shneiderman, 1992) are used for visually exploring 1.8 million property sales in London between 2000 and 2007 – and focus on how the layout and ordering of elements in the treemap can reveal different information.
Date: Jan 01, 2009 | Type: Paper |
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
, Jason Dykes
and Jo Wood. Robert Radburn
Fields: GIS & Geovisualisation
Summary: This paper presents a novel alternative representation of origin-destination topology that makes it more amenable to the visualization of structure and spatial organisation of trajectories.
Date: Nov 03, 2008 | Type: Paper |
Pillar: Core Technologies & Methods
Hub: Science & Innovation
Authors: Charles Scawthorn
and Mohammad Javanbarg. J. Kiyono, Kyoto University Y. Ono, Kyoto University
Fields: Seismic
Summary: The authors of this paper propose a method for computing terminal-pair reliability of infrastructure networks based on Binary Decision Diagram (BDD)
Date: Aug 11, 2008 | Type: Article |
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
Fields: GIS & Geovisualisation
Summary: The WRN's Dr Aidan Slingsby talks Google, Geovisualisation and GIS to reinsurance magazine, The Review
Date: Aug 01, 2008 | Type: Article |
Pillar: Core Technologies & Methods
Hub: Mapping and Geospatial Science
Authors: Aidan Slingsby
Fields: GIS & Geovisualisation
Summary: Fast, flexible and one of the most revolutionary internet applications ever released,Google Earth's aerial view offers astonishing potential benefits to re/insurers, says Aidan Slingsby.
Date: Jul 08, 2008 | Type: Presentation | Attachment: Download File ›
Pillar: Core Technologies & Methods
Hub: Technologies and Platforms
Authors: Keith Porter
Fields: Cat Models
Summary: Some observations and lessons about catastrophe models & science