I am writing an abstract for a paper, where I say the following:
"In contrast to previous work, our method does not rely on ...."
Then, about three sentences later, I would like to use a similar construct
"In contrast to previous work, where problem X is usually approached this way ...."
These constructs are useful to quickly highlight the contributions of your work in the abstract, but I would prefer avoiding the repetition of the exact same words, since the two sentences are close enough to each other in the text.
Can anybody think of a compact way of rephrasing either of these two sentences (without changing the structure of the text much) ?