1. A system comprising: a memory storing computer-executable instructions; and a computer processor in communication with the memory, the computer processor programmed by the computer-executable instructions to at least: receive, from a monitored source, current input data regarding an operating parameter at a current time, wherein the operating parameter relates to performance of a computing system; analyze prior input data regarding the operating parameter to determine an expected change in the operating parameter, wherein the prior input data reflects a value of the operating parameter at each of a plurality of prior times; determine, based at least in part on the values of the operating parameter at each of the plurality of prior times, a particular time at which the expected change in the operating parameter is expected to occur; determine that the current time corresponds to the particular time; analyze the current input data and at least a portion of the prior input data to determine a current change in the operating parameter; determine, based at least in part on the values of the operating parameter at each of the plurality of prior times, a permitted relationship to the expected change; determine that the current change does not satisfy the permitted relationship with the expected change; in response to determining that the current change does not satisfy the permitted relationship, generate an anomaly notification; and cause display of a graphical interface presenting the anomaly notification, wherein the graphical interface is configured to obtain an indication that the anomaly notification is erroneous.