Influence to artist appearing frequency

Alice In Chains are the artist that most appears in my radio stations, regardless of what I try and although I've integrated almost all songs by my three favourite artists into my collection. My favourite artists appear rather rarely.

Is there anything I can do to directly influence the frequency of my favourite artists' appearances?

There must be. As I've seen other users having listened to one artist - even one track - three, six, ten times following. And the time between the scrobblings was way too short for them to click further and further until the wanted song come again by accident.

Any help would be relieving!