| 摘要 |
<p>The invention concerns the field of techniques for locating anomalies detected in a network and, more particularly, locating an anomaly detected in a tree structure comprising a plurality of non-observed nodes Z1, Z2, ... Zp connected to an observed node Y from which a signal y has originated, corresponding to a sum of sub-signals z1, zi, zp originating from the non-observed nodes. The invention involves expressing the signal as a sum of functions of explanatory variables, each function determining an expected behaviour of a corresponding component of the signal, and expressing each sub-signal as a sum of functions simulated on the same explanatory variables, each simulated function determining an expected behaviour of a non-observed sub-component of the signal, in order to locate any anomaly that may have occurred at the non-observed nodes, from the non-observed sub-component of the signal.</p> |
