True biological networks are known to be sparsely connected, so we would expect sparse network matrices A. The prior should force as many entries of A close to zero as possible, at the expense of allowing for fairly large values of a few components.
When the Y ∈ RM × 1 is K-sparse signal, the Y do not need to be sparsely represented, so the dictionary base is an identity matrix.
The app is highly rated by iTunes users, but it is also sparsely rated, so prospective buyers should read the description closely.
Some of these comedy festivals can be fairly sparsely attended, so economies like that could be the difference between profit and loss in the final reckoning.
Parts of Scotland are remote and sparsely populated, so some areas have to factor in geography and the weather.
"The Karoo is sparsely populated so it's easy to gain the impression that nothing happens there; in fact it is a bustling community," he told the BBC.
Although the quakes were felt as far away as the East Coast, the area around the quake was sparsely populated, so devastation was limited.
Both areas were sparsely populated, so there was little demand for a fixed river crossing at that point.
However, much of BC is sparsely populated, so it was more important to consider changes in the populations classified as high and lower vulnerability as the thresholds changed.
