You will be shown an excerpt from a computer science scientific research paper, followed by a question about the paper. Please answer the question. Do not include any text in your response other than the answer.

Context: "In image recognition….than encoding original vectors."

Question: In what ways has the use of residual representations and shortcut connections improved the accuracy of deep neural networks in image recognition tasks?
The residual representation presents a powerful shallow representation for image retrieval tasks. The improvement in accuracy due to residual representation and shortcut connections in image recognition tasks cannot be answered in this paper.