Gain or GAIN may refer to:
== Science and technology == Gain (electronics), an electronics and signal processing term Antenna gain Gain (laser), the amplification involved in laser emission Gain (projection screens) Information gain in decision trees, in mathematics and computer science GAIN domain, a protein domain Learning rate, a tuning parameter in stochastic approximation methods, also known as gain
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).