The future returns of each securities cannot be correctly reflected by the securities data in the past, therefore the statistical techniques and the experts' judgement and experience are combined together to estimate the security returns in the future. In this paper, the returns of each...

<title>Abstract</title>This paper investigates a transportation scheduling problem in large-scale construction projects under a fuzzy random environment. The problem is formulated as a fuzzy, random multi-objective bilevel optimization model where the construction company decides the transportation quantities...

A devastating Ms8.0 earthquake struck Wenchuan on May 12, 2008, a historical county in Sichuan Province, southwest China, which affected more than half of China. This article makes a comparative study on the pre-earthquake prevention and post-earthquake reconstruction of 14 world-famous...

Earthquakes have become more frequent in the past few decades causing significant impact to regional economic development. Small- and medium-sized enterprises (SMEs), as a key component of modern business, often suffer more severely because of their vulnerability. This article proposes a common...

Earthquake emergency response and rescue (ERR) is a global challenge, but especially in developing countries. As a large earthquake-prone developing country, China’s experiences and lessons in ERR can provide a useful reference for other developing countries. In this article, China’s ERR...

This paper is concerned with a vehicle routing problem with soft time windows (VRPSTW) in a fuzzy random environment. Two objectives are considered: (1) minimize the total travel cost and (2) maximize the average satisfaction level of all customers. After setting up the model for the VRPSTW in a...

In this paper, a multi-objective decision-making model with birandom parameters is proposed. A birandom simulation technique is developed to tackle general birandom objective functions and birandom constraints. Combined with a birandom simulation technique, a genetic algorithm is designed for...