Compare with original entry title:

• remove latex and compare a-z0-9
• remove stuff and use a edit distance threshold
• distinguish between missing words at the end (inaccurate data) and different words at the start or in between
• Does not remove braces like, e.g., Enhancing {BPMN} 2.0~{S}upport for Service Interaction Patterns
• LaTeX command may fail the algorithm, e.g., SCE\textsuperscript{MT}: A Multi-tenant Service Composition Engine
• Only logging failure to status bar is strange for user clicking on the button
• Techreps and thesis are sometimes wrongly assigned as a different paper with the same name exists
• Lookup doi not identical status in bar! Override current value?

Use a large Bibtex file with valid DOIs (e.g. Simon's) to compare the diff and accuracy of the algorithms.

• Reject DOIs that do not suffice the check algorithm
• Implement a bulk action for getting all DOIs for several entries