Authors getting incorrect alternate names after merge

In looking at the Charles Dickens record, we see the following bad name forms, many of which could be detected and eliminated automatically:

Non-author contributors conflated:

"Flo Gibson (Narrator)", "illustrated by Arthur Rackham Charles Dickens", "Introduction-John Carey", "Mike; Spencer, John (editors) (Charles Dickens; Lord Halifax; Edgar Allan Poe; Bram Stoker; O. Henry; William Mudford; Frederick Marryat; Matthew Lewis; William Makepeace Thackeray; W. W. Jacobs; Saki) Jarvis"

Bad capitalization, spelling, etc:

"Dickens", "DICKENS", "Dickens, Charles", "Charles", "CHARLES DICKENS", "CHARLES. DICKENS", "Charles dickens", "Dickens Charles.", "C DICKENS", "Charled Dickens", "Dickens Charles", "harles Dickens",

Dates or transliterations embedded:

"Dickens, Charles, 1812-1870.", "DICKENS, CHARLES, 1812-1870", "Charles Dickens Charles Dickens", "Charles 1812-1870 Dickens", "Dickens, Charles,$d1812-1870", "Dickens,Charles ディケンズ,チャールズ (1812-1870)",