Version 2.6.2 of Longevitas
Publication Date:
Longevitas Ltd is pleased to announce the production release of v2.6.2 of its Longevitas risk-modelling software.
This release adds powerful productivity and ease-of-use features, including:
2.6.2 update release
- The 2011 update of the Mosaic Longevitas profiler.
- LatestUsableDate optional code field to make it easier to model across datasets with differing extract dates. This is of particular application when clients are building models spanning datasets from different sources. Clients who gather data from quote activity in the bulk-annuity or longevity-swap markets should find this particularly helpful.
- Inclusion of a new Longevitas Technical Guide explaining internals and theoretical underpinning for the Longevitas system and models.
- Deviance statistic calculation and a new DIC optimisation target.
- Equivalent-annuity calculations for a given portfolio.
- Equivalent-annuity calculations for a model-generated rates, including a downloadable Excel® spreadsheet.
- Mass calculation of annuity factors and life expectancies, including a downloadable Excel® spreadsheet capable of mass calculation of single- and joint-life annuities.
- A new optimiser scope setting allowing optimal (optimise-n) optimisations to begin from any number of levels, and allowing the application of user defined optimisation constraints to optimal (optimise-n) models.
- User-defined assignment rules to allow bespoke code creation based on post-deduplication records, for example to create a bespoke pension-size tiering.
- Operation completion and password hint notifications now available by SMS in addition to — or instead of — e-mail.
- Additional extended authentication settings including multiple fixed IP addresses and net masks.
2.6.1 update release
- 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
2.6 base release
- 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.
Previous news
Version 2.1 of the Projections Toolkit
29 August 2011
Longevitas Ltd is pleased to announce the production release of v2.1 of the Projections Toolkit. This version contains powerful productivity and security features including:
