This study presents a new simple approach for combining empirical with raw (i.e., not bias corrected) coupled model ensemble forecasts in order to make more skillful interval forecasts of ENSO. A Bayesian normal model has been used to combine empirical and raw coupled model December SST Niño-3.4 index forecasts started at the end of the preceding July (5-month lead time). The empirical forecast...

One approach for smt solvers to improve efficiency is to delegate reasoning to abstract domains. Solvers using abstract domains do not support interpolation and cannot be used for interpolation-based verification. We extend Abstract Conflict Driven Clause Learning (acdcl) solvers with proof generation and interpolation. Our results lead to the first interpolation procedure for floating-point lo...

Diagnosis Marco Comini a, Giorgio Levi a, Maria Chiara Meo b and Giuliana Vitiello c aDipartimento di Informatica, Università di Pisa, Corso Italia 40, 56125 Pisa, Italy. bDipartimento di Matematica Pura ed Applicata, Università di L’Aquila, via Vetoio, località Coppito, 67010 L’Aquila, Italy. cDipartimento di Informatica ed Applicazioni, Università di Salerno, Baronissi (Salerno), Italy. Abstr...

As envisioned and implemented so far, the enlargement process is long-term and has neither milestones nor deadlines for completion. It is an open process that in principle does not reject beforehand the membership of any European country (as stipulated in Article 10 of the Washington Treaty). Since early 1994, NATO has committed itself to a gradual and transparent process of enlargement, althou...

Introduction of formal model-based practices into the development process of a product in a company implicates changes in the verification and validation activities. A testing process that focuses only on code is not comprehensive in a framework where the building blocks of development are models, and industry is currently heading toward more effective strategies to cope with this new reality. ...

We appreciate Dr Colvin’s thoughtful review and agree “that current anchoring devices suffer from unpredictable lead retention, possible lead fracture and discomfort due to being bulky.” As noted, our study was intended to analyze leads following maximal tension applied to suture loop anchors. The leads were subsequently examined under gross microscopy and tested for impedance changes. This was...

Iconic interfaces are now the de facto interface for most computer systems. Despite the popularity of iconic interfaces and the widespread belief that iconic interfaces are easier to comprehend than non-iconic interfaces, we have not come across any published study that has examined the effect of domain knowledge on end users’ interpretation of icons. An understanding of the relationship betwee...

We present a new approach to the analysis and verification of simple properties of character navigation. We model navigation strategies for virtual characters by cellular automata, and use standard abstract interpretation techniques for abstracting and verifying navigation properties.

In this paper, we develop and present a contingency model of leadership and psychological empowerment that specifies the circumstances and situations under which follower self-leadership should be encouraged. The model suggests that certain key contingency factors, including follower development, situational urgency and task structure, dictate which of several leadership approaches, including d...

This work proposes a complete framework for human activity discovery, modeling, and recognition using videos. The framework uses trajectory information as input and goes up to video interpretation. The work reduces the gap between low-level vision information and semantic interpretation, by building an intermediate layer composed of Primitive Events. The proposed representation for primitive ev...