Currently there is a common problem of real-time data inconsistency between source transactional systems and data warehouse. ECA, a well-known algorithm, is quite effective in addressing the view maintenance anomaly by making use of compensation queries. However, ECA does not maintain information about the data warehouse, and has to send compensating queries to the source system resulting in pe...

Materialized view selection is one of the most crucial techniques to design data warehouse in an optimal manner. Selecting views to materialize for the purpose of supporting the decision making efficiently is one of the most significant decisions in designing Data Warehouse. Selecting a set of derived views to materialize which minimizes the sum of total query response time and maintenance of t...

The increasing demands for interactive response time from the users makes query performance one of the central problems of Data warehouse systems today. Performance is an important quality aspect of Data warehouse systems. Predicting the performance of Data warehouse systems during early design stages of their development is significant. Software Performance Engineering(SPE) promotes the idea t...

Generally, research that dealt with the selection problems for optimization techniques or structures in relational data ware houses supports these problems by considering only a single criterion of optimization. The optimization criteria may be the response time of query execution, the number of inputs/outputs between the main memory and the disk, the space allocated to store the index or mater...

This study is an extension of the Joint Replenishment Problem (JRP) that takes into accounts the warehouse-space restrictions in a distribution center. The focus of this study is to determine the lot sizes of each product under power-of-two policy to minimize the total costs per unit time and to generate a feasible replenishment schedule of multiple products without exceeding the available war...

Figure 1. Warehouse specification tool used to describe the Automated Case Picking module. Challenges Warehouses play an important role in modern supply chains. These facilities receive goods from various suppliers, provide temporary storage for these goods, and distribute them to customers according to the received orders. The flow of goods in a warehouse is controlled by a warehouse managemen...

With the continuous development of E-commerce, warehouse logistics is also facing emerging challenges, including more batches orders and shorter order processing cycles. When need to be processed simultaneously, some existing task scheduling methods may not able give a suitable plan, which delays reduces efficiency warehouse. Therefore, intelligent system that uses autonomous robots for automat...

This study aims at optimally coordinating inventory among all the partners in a supply chain system with a central warehouse and multiple local retailers so as to minimize the average total costs. After reviewing the literature, we found no study proposes an efficient solution approach that guarantees to secure an optimal solution for the one-warehouse multi-retailer lot-sizing problem. A major...

We model the problem of storing items in some warehouse (modeled as an undirected graph) where a server has to visit items over time, with the goal of minimizing the total distance traversed by the server. Special cases of this problem include the management of a real industrial stacker crane warehouse G], automatic robot run warehouses Ho], disk track optimization to minimize access time GS, P...