No two LDA Topic Models are the same. What’s a topic modeler supposed to do? — After spending hours tuning an LDA Model, nothing will spoil a topic modeler’s day like realizing just how different one run of their model is from the next. The LDA algorithm is stochastic and models generated with the same parameters over the same data will produce different results. This is…

Despite the large number of blog posts and articles written about LDA Topic Model implementations, precious few delve into the most important and enigmatic decision that has to be made by the developer: choosing the number of topics to model. …

A More Than 3-Minute Topic Modeling Article — Topic modeling is the automated discovery of semantically meaningful topics within a body of text. Topic models produce categories, expressed as lists of words, that can be used to divide a body of text into useful groupings. The most common algorithm currently used for topic modeling is Latent Dirichlet Allocation…

In 1801, after an election punctuated by bitter partisan disputes, accusations of treason and sedition, and the imprisonment of political dissidents, Thomas Jefferson became the nation’s third President. Twenty years later, reflecting on the bitter presidential race that elevated him into office, he called the election “the revolution of 1800……

Between Two Worlds Eight years after George Washington’s Inauguration, the nation’s second president, John Adams, eschewed the first President’s choice of a large carriage pulled by six white horses, preferring his own “simple but elegant enough” conveyance pulled by two “young but clever” horses. The following day, in a letter…

George Washington at the Frontier of Presidential Power Every four years, sometimes more often in the case of untimely death or assassination, the President of the United States, after being sworn into office on the twentieth of January in the year after the election, gives an inaugural address. The speech is not Constitutionally mandated, it is a custom…