Surviving survival analysis

Surviving the Interim: Insights Into Interim Survival Analysis

Pre-specified interim analyses may be performed to evaluate whether a clinical trial can be halted prematurely for overwhelming efficacy and/or futility. This approach is somewhat more complex when the primary endpoint is a survival analysis. This paper provides an overview of performing the initial calculations and actual interim analyses using SAS ® PROC SEQDESIGN and PROC SEQTEST, EAST ® sof...

Surviving torture.

Surviving the Gales of Creative Destruction: Determinants of Product Survival in the Desktop Laser Printer Industry

In this paper, we examine the product life cycle in the desktop laser printer industry, from its inception in 1984 through 1996. During this time, the industry experienced a significant degree of innovation, as well as an enormous amount of product introduction and subsequent exit. The relative roles of market structure, innovation, and firm effects are explored in more detail using a multidime...

The Team Surviving Orienteers problem: routing teams of robots in uncertain environments with survival constraints

We study the following multi-robot coordination problem: given a graph, where each edge is weighted by the probability of surviving while traversing it, find a set of paths for K robots that maximizes the expected number of nodes collectively visited, subject to constraints on the probabilities that each robot survives to its destination. We call this the Team Surviving Orienteers (TSO) problem...

Survival Analysis

Survival analysis is a collection of statistical methods that are used to describe, explain, or predict the occurrence and timing of events. The name survival analysis stems from the fact that these methods were originally developed by biostatisticians to analyze the occurrence of deaths. However, these same methods are perfectly appropriate for a vast array of social phenomena including births...