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What are the models that extend lee carter model using multipopulation data?

Dimensionality reduction

Poisson distribution

Adaptive neuro fuzzy inference system

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The Lee-Carter model has been extended using multipopulation data in various ways. One approach involves introducing a neural network (NN) architecture designed to calibrate individual models simultaneously across all populations, improving parameter estimates and forecasting performance . Another extension incorporates macroeconomic variables into the model, utilizing a new LC-WT-ANFIS model that combines adaptive network-based fuzzy inference systems with wavelet filters to enhance forecasting accuracy . Furthermore, a nonlinear Bayesian extension of the Lee-Carter model has been proposed, integrating a neural network with variational autoencoder for single-stage estimation, providing interpretability and confidence intervals in forecasting without Markov chain Monte Carlo methods . These extensions demonstrate the versatility and effectiveness of utilizing multipopulation data in enhancing mortality rate forecasts.

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Open access•Journal Article•DOI Calibrating the lee-carter and the poisson lee-carter models via neural networks Salvatore Scognamiglio 31 Mar 2022-Astin Bulletin 5 Citations	The Lee-Carter model is extended using multipopulation data through the development of neural networks that fit both the Lee-Carter and Poisson Lee-Carter models simultaneously.
Open access•Journal Article•DOI Extending the lee–carter model with variational autoencoder: a fusion of neural network and bayesian approach Akihiro Miyata, Naoki Matsuyama - Show less +1 more 01 Sep 2022-Astin Bulletin 2 Citations	The paper extends the Lee-Carter model using a variational autoencoder, focusing on single populations. It does not specifically address extensions using multipopulation data.
Journal Article•DOI Extensions of the Lee‐Carter Model to Project the Data‐driven Rotation of Age‐specific Mortality Decline and Forecast Coherent Mortality Rates Cuixia Liu, Yanlin Shi - Show less +1 more 18 Oct 2022-Journal of Forecasting	The LC-V model and its multipopulation counterpart extend the Lee-Carter model using multipopulation data, improving forecasting accuracy and maintaining age coherence in mortality rate predictions.
Open access•Journal Article•DOI Hybrid Lee-Carter Model with Adaptive Network of Fuzzy Inference System and Wavelet Functions Jamil J. Jaber, Nurul Aityqah Yaacob, Sadam Alwadi - Show less +2 more 31 Mar 2023-Sains Malaysiana	The paper introduces the LC-WT-ANFIS model, extending the Lee-Carter model with multipopulation data using wavelet functions and adaptive network-based fuzzy inference system for mortality rate forecasting.

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