Abstract Classically, Jensen’s Inequality asserts that if $X$ is a compact convex set, and $f:K\to {\mathbb {R}}$ function, then for any probability measure $\mu $ on $K$, $f(\text {bar}(\mu ))\le \int f\; \text {d}\mu $, where $\text )$ the barycenter of $. Recently, Davidson Kennedy proved noncommutative (“nc”) version inequality applies to nc functions, which take matrix values, with measure...

Software maintenance activities can be organizationally combined with or separated from software development. Proponents have argued advantages for each mode, but factual evidence on the respective results and conditions has been missing. This paper reports evidence gathered from sites organized in the two ways and contrasts their characteristics. Significant differences appear that give a bett...

The preservative methylchloroisothiazolinone/methylisothiazolinone (MCI/MI) is a well-known sensitiser and present in the Swedish baseline series since the 1980s. The proportions of MCI/MI are 3:1. MI alone has been used as a preservative since less than 10 years. This study was conducted on behalf of the Swedish Contact Dermatitis Research Group to evaluate inclusion of MI in the Swedish basel...

The breadth and depth of heap properties that can be inferred by the union of today’s shape analyses is quite astounding. Yet, achieving scalability while supporting a wide range of complex data structures in a generic way remains a long-standing challenge. In this paper, we propose a way to side-step this issue by defining a generic abstract domain combinator for combining memory abstractions ...

This article establishes the performance of stochastic blockmodels in addressing the co-clustering problem of partitioning a binary array into subsets, assuming only that the data are generated by a nonparametric process satisfying the condition of separate exchangeability. We provide oracle inequalities with rate of convergence OP (n ) corresponding to profile likelihood maximization and mean-...

Separate selling of two independent goods is shown to yield at least 62% of the optimal revenue, and at least 73% when the goods satisfy the Myerson regularity condition. This improves the 50% result of Hart and Nisan (2017, originally circulated in 2012).