Version 2.6.1 of Longevitas

Date: Feb 28, 2011

Longevitas Ltd is pleased to announce the production release of v2.6.1 of its risk-modelling software

The 2.6.1 update adds powerful productivity and security features, including:

  • Traditional analysis (A/E) reporting
  • Extensions to expert system to warn against over-fitting in optimisations
  • Ability to fix all parameters for an existing model
  • Fix/Re-run facility can now regenerate as well as reuse existing input data
  • Improvements to revaluation facility, including ability to download both original and revalued amounts
  • Addition of derivatives for Normal model
  • Two-factor authentication incorporating SMS passcode and fixed IP options
  • Validation and test facility for SMS numbers
  • Notifications at individual, organisation and server wide level
  • User Laws. This release introduces user-defined functional forms for the risk to complement the existing built-in laws. User laws are supplied as mathematical expressions to be interpreted by the calculation core, and both survival and qx-type forms for user models are supported.
  • User-defined validation.  Existing default validation can now be supplemented with user-defined rules. These will allow bespoke data-screening rule-sets to be created for various purposes.
  • Forward Selection.  This optimiser mode complements the existing options: law selection, backwards elimination and optimised grouping.  With forward selection the optimiser will consider additional risk factors and second-order interactions for inclusion in the model.
  • Parameter Explorer.  Changes to provide an estimate crosshair and explanatory text to express parameters for models based on standard tables.
  • An increase to the maximum number of modelling iterations for complex models that require an extreme numbers of iterations to converge.
  • An annual update to the Mosaic Longevitas 2010 profiler data.  This is a version of the UK postcode Mosaic profiler which has been enhanced for actuarial work.

Longevitas is used by insurers, investment banks, reinsurers and consulting actuaries to analyse demographic risks. Applications to-date include mortality, longevity, critical illness and persistency.

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