Month : December 2016

AI/ML

Markov random fields for recommender systems IV: Recommending a set

Newsemia
Let us start with the standard setting in collaborative filtering: We are given an incomplete rating matrix and one usual task is to fill those...
AI/ML

Mixed-type data analysis IV: Representing multivariate ordinal data

Newsemia
Multivariate ordinal data is popular when human judgement is involved. For example, in collaborative filtering, we rate multiple items, each of which with a number...
AI/ML

Markov random fields: Structure learning I

Newsemia
Structure learning in Markov random fields is an important topic since without the correct structures, we can potentially estimate a wrong or unreliable model. Often...
AI/ML

Markov random fields: Parameter learning I

Newsemia
In this post, I will review some practical learning methods which are applicable for large-scale Markov random fields (MRFs), e.g., with millions of parameters. This...
AI/ML

Caring deeply: Intervened long short-term memory for medical records

Newsemia
In the US, healthcare expenditure accounts for approximately 18% GDP, almost twice as much that in Australia. And the percentage keeps growing. One possible explanation...
AI/ML

Caring deeper: motif detection from medical records using convolutional nets

Newsemia
In the previous post, I have introduced DeepCare, a LSTM-based model for (potentially very long) medical records with irregular timing and treatments.Here I introduce another...
AI/ML

Model stability: Learn it many more times, but on different datasets

Newsemia
How often do you actually publish your data-derived models? Chances are you almost never do, if you are machine learning type. Only quite recently, when...
Dentistry

5 Myths about Tooth Sensitivity, Debunked

Newsemia
Desserts, something we look forward to after every meal. Think ice-creams, pastries, pudding, chocolate and cookies, can you ever say no to them? But sometimes...
Surgery/Cosmetic

Millennials more likely to flaunt plastic surgery operations

Newsemia
A group of surgeons in the U.S. observed that Generation Y members, or millennials, are likely to post on social media regarding cosmetic surgery. In...

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