Spelling correction on technical documents

We describe a novel approach to spelling correction applied on technical documents, a task that requires a number of especific properties such as efficiency, safety and maintenance. In opposite to previous works, we explore the region close to the point at which the recognition halts, gathering all relevant information for the repair process in order to avoid the phenomenom of errors in cascade. Our approach seems to reach the same quality provided by the most performance classic techniques, but with a significant reduction on both time and space costs.