class OnlineLogDet: def (self, d, reg=1e-6): self.d = d self.reg = reg # ridge regularization self.n = 0 # total samples self.mean = np.zeros(d) self.M2 = np.zeros((d, d)) # sum of outer products (centered)
Second-round interviews are often considered the most rigorous stage of the hiring process, featuring higher intensity, deeper scrutiny, and increased stakes from panels. Candidates should prepare for probing questions on weaknesses, utilize the STAR method for behavioural scenarios, and articulate clear reasons for wanting the specific role. For more information, see the advice from Michael Page