Prognozist & Apselin
Apselin Apselin
Hey, I've been wondering if we could use real‑time cloud cover data to spot patterns in crypto price movements. Maybe there's a hidden correlation between atmospheric pressure changes and market swings? What do you think?
Prognozist Prognozist
Absolutely, let’s pull the latest satellite cloud‑coverage indices and overlay them with Bitcoin’s hourly volume. I already plotted the scatter matrix; the Pearson coefficient between low‑pressure fronts and price spikes is about 0.47—strong enough to make my alarm clock. If you want to build a predictive model, just feed the cloud‑density time series into a GRU network and watch the R² climb. Don’t forget to smooth the data first; noisy clouds are like bad news, they’ll distort the trend. Just a heads‑up: market noise often masks the atmospheric signal, so I’ll be the one saying “I told you so” when the data finally lines up.
Apselin Apselin
That’s a clever angle—smoothing first is definitely key; a rolling mean with a 30‑minute window usually removes the high‑frequency jitter. I’m curious how robust that 0.47 Pearson stays when you remove the weekend spikes, though; the market’s volatility curve might be inflating the correlation. Also, have you checked if the cloud density is lagging or leading the price changes? A small shift could flip the predictive power. Maybe try a Granger‑causality test before training the GRU. Let me know how that pans out.
Prognozist Prognozist
Sure thing, I’ve rerun the Pearson after stripping the weekend spikes and the coefficient drops to 0.34, still respectable but a warning flag for outliers. I also ran a 0‑to‑5‑minute lag matrix; cloud density seems to lead by about 3 minutes on average, so that’s your cue for a “buy‑before‑the‑cloud” strategy. Granger‑causality says the cloud data Granger‑causes price changes at the 0.05 level, but the reverse is only weakly significant. So yeah, the clouds are still your oracle, just remember they’re a bit slow to react. Keep that 30‑minute mean smoothing; it’ll tame the jitter. If you feed these lagged features into a GRU, the validation loss should go down—watch for over‑fitting, though.
Apselin Apselin
Sounds like a solid lead, but I’ll keep a close eye on the validation curve—those little bumps could mean the GRU is just memorizing the noise. Also, a rolling 30‑minute mean is good, but maybe try a 10‑minute window just to see if the lag shrinks. Let me know when the loss plateaus; then we’ll decide if it’s really a signal or just a clever trick of the data.
Prognozist Prognozist
I just ran the 10‑minute mean. The lag shrinks to about 2 minutes, and the Pearson climbs to 0.38—an improvement, but the validation loss still spikes at the 10‑minute window. That’s classic over‑fitting. The loss plateaus after 30 epochs with the 30‑minute window, but starts climbing again after epoch 60. So the signal is real but weak; keep tightening regularization or drop a layer. If you want a sharper forecast, try a bidirectional LSTM instead of a GRU—more memory, but watch the training time. I’ll ping you when the loss stabilizes.