Abstract: Methods and systems are described herein for identifying one or more variables as key drivers of shift in a value of interest. In some aspects, a root cause analysis system may implement a subroutine to use feature contributions to identify the contributions of each variable in a baseline dataset and an updated dataset, where a value of interest has shifted between the baseline and updated datasets. By taking the difference in feature contributions between the datasets, the system may identify those variables with the largest shift in contribution as principal drivers of change for a value of interest. In some aspects, a root cause analysis system may implement a subroutine to generate partial dependence plots (PDPs) for each feature. By comparing different PDPs for each feature, the system may identify the features with significantly different feature-target relationships and find the key segments responsible for performance change.

Abstract: Methods and systems are described herein for identifying one or more variables as key drivers of shift in a value of interest. In some aspects, a root cause analysis system may implement a subroutine to use feature contributions to identify the contributions of each variable in a baseline dataset and an updated dataset, where a value of interest has shifted between the baseline and updated datasets. By taking the difference in feature contributions between the datasets, the system may identify those variables with the largest shift in contribution as principal drivers of change for a value of interest. In some aspects, a root cause analysis system may implement a subroutine to generate partial dependence plots (PDPs) for each feature. By comparing different PDPs for each feature, the system may identify the features with significantly different feature-target relationships and find the key segments responsible for performance change.

Abstract: A child's walker includes pivotally connected first and second frame members which rotate with respect to one another to define an open position and a closed position. A third frame member has a tray on the front portion thereof and a rear portion which freely pivots on the first frame member. Height adjusting means are secured to the legs of the first frame member, these means supporting the legs of the second frame member when the walker is in the open position. The walker folds to the closed position for carrying and storage.