Same-day delivery of online orders is becoming an indispensable service for large retailers. We explore an environment in which in-store customers supplement company drivers and can take on the task of delivering online orders on their way home. Because online orders as well as in-store customers willing to make deliveries arrive throughout the day, it is a highly dynamic and stochastic environ...

Research on neighborhood food access has focused on documenting disparities in the food environment and on assessing the links between the environment and consumption. Relatively few studies have combined in-store food availability measures with geographic mapping of stores. We review research that has used these multi-dimensional measures of access to explore the links between the neighborhood...

recently, internet is widely used in our daily life, caused online customer growing rapidly, then the amount of online store rising quickly. therefore, it is an important issue for online stores to stand out from the crowd, even boost sales and profit. many enterprises had invested resource on online store, but great amount of stores were closedown. the major reason is operator spend many effor...

Information integration is a difficult research problem. In an ambient environment, where devices can connect and disconnect arbitrarily, the problem only increases, because data sources may become available at any time, but can also disappear. In such an environment, information integration needs to be unattended, because information integration opportunities arise on ad-hoc basis. We propose ...

This paper describes an experiment in the use of a persistent object store to support the construction and execution of a software development environment. This development environment presents the user with language specific editors which provide access to incremental parsers. The editors and parsers are automatically generated from a formal language specification based on attribute grammars. ...

This paper addresses the problem of verifying and correcting programs when they are moved from a sequential consistency execution environment to a relaxed memory context. Specifically, it considers the PSO (Partial Store Order) memory model, which corresponds to the use of a store buffer for each shared variable and each process. We also will consider, as an intermediate step, the TSO (Total St...