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AI? What was the training data? Would seem a bit thin on the ground.
by kayo_20211030 4y ago
AI? What was the training data? Would seem a bit thin on the ground.
- neodymiumphish 4y agoCouldn't you train it to find things that don't correlate to anything from a given dataset that also pattern to non-random/unnatural signal?
- convolvatron 4y agoI assume autocorrelation was the first thing they tried - don't really need an AI
- junon 4y agoYes but then their click scores go down for not having buzzwords.
- michaelcampbell 4y agoI wonder if the distributed SETI stuff does this.
- pr337h4m 4y ago"To be sure, because they don’t have real signals from an extraterrestrial civilization, the researchers had to rely on simulated signals to train their models. The researchers note that this could lead to the AI system learning artifacts that aren’t there. Still, Cherry Ng, one of the paper’s co-authors, points out the team has a good idea of what to look for. “A classic example of human-generated technology from space that we have detected is the Voyager,” said Ng, who studies fast radio bursts and pulsars, and is currently affiliated with the French National Centre for Scientific Research, known as CNRS. “Peter’s machine learning algorithm is able to generate these signals that the aliens may or may not have sent,” she said."
- kayo_20211030 4y agoSounds like a case of assuming ones priors. Of course, should we wish to find human space travelers whose SatNav(tm) has broken, I'm sure it will prove invaluable.
- varjag 4y agoA singleton set beats an empty one.
- ActionHank 4y agoThey just asked ChatGPT to look /s
- password11 4y ago> AI? What was the training data? Would seem a bit thin on the ground. It's in the article. To train the AI system, Ma inserted simulated signals into actual data, allowing the autoencoder to learn what to look for. Then the researchers fed the AI more than 150 terabytes of data from 480 observing hours at the Green Bank Telescope. The AI identified 20,515 signals of interest, which the researchers had to inspect manually. Of those, eight had the characteristics of technosignatures and couldn’t be attributed to radio interference. The researchers then returned to the telescope to look at systems from which all eight signals originated but couldn’t re-detect them.