There are a lot of Topic Models. 18/02/23 # of TM is 24
- ATM(author topic model)
- BTM(biterm topic model)
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CTM(correlated topic model) 
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CTM(corespond topic model) 
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cDTM(continuous time dynamic topic model) 
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CGTM(correlated Gaussian topic model) 
- DTM(dynamic topic model)
- DMR(Dirichlet-multinomial regression)
- hLDA(hierarchical LDA)
- HDP
- ITM(interactive topic model) *Interactive Topic Modeling (ACL'11)
- LGSA(latent grounded semantic analysis)
- MDTM(multiscale dynamic topic model)
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PAM(Pachinko allocation model) 
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PLSV(probablistic latent semantic visualization) 
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PYTM(Pitman-Yor topic model) 
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PCTM(pairwise coupled topic model) 
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PLTM(polylingual topic models)/JTM(joint topic models) 
- RTM(Relational Topic Model)
- sLDA(supervised LDA)
- Twitter-LDA
- TTM(topic tracking model)
- TOT(topic over time)