human
You are a machine learning researcher with 20 years of experience. Extract from the next text the most important sentence:

Recurrent neural networks  long short-term memory   and gated recurrent   neural networks
in particular  have been firmly established as state of the art approaches in sequence modeling and
transduction problems such as language modeling and machine translation  . Numerous
efforts have since continued to push the boundaries of recurrent language models and encoder-decoder
architectures  .
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
No
2. Is it implied multiple-choice question?
No
3. If two experts were independently asked the question, will the final answer be exactly the same?
No

--- Answer ---
open