They've been verified to be fairly accurate: https://dl.acm.org/doi/10.1145/2989081.2989088 https://dl.acm.org/doi/10.1145/2989081.2989088 https://dl.acm.org/

They've been verified to be fairly accurate: https://dl.acm.org/doi/10.1145/2989081.2989088 https://dl.acm.org/doi/10.1145/2989081.2989088 https://dl.acm.org/doi/10.1145/3177754 https://dl.acm.org/doi/10.1145/3177754