Saturday, February 15, 2020

The importance of XML Labelling Schemes in Managing XML data Case Study

The importance of XML Labelling Schemes in Managing XML data - Case Study Example 2008: 5). XML labelling schemes refer to tools which are basically used to assign unique codes to the nodes in the tree such that the constant time is taken in the determination of the relationship between two nodes from the codes. The basic binary encoding and the enhanced binary encoding can be used for labelling the XML tree. A label consists of labelling schemes which can be compared with the structural join performance of other labelling schemes (Min, Lee, & Chung 2009: 505). A good labelling scheme is, therefore, determined by how well it determines the relationship between XML elements and how it quickly it offers access to the desired data. Counting odd division values of a label is used to determine the level of the optimized prefix compression scheme; where the prefix-based labelling scheme lends itself of a name directory with (potentially) all element names occurring in the XML document (Haustein & HÃ ¤rder 2007: 515).Labelling schemes in existence can be categorised as either in terval labelling or prefix labelling(Sexton 2009:160). For interval labelling scheme, a pair of numbers are assigned to label each node in the tree, with the first number being the pre-order number and the second one the post-order number (Wu, Lee & Hsu 2004:68).This labelling scheme supports XML query processing of the XML efficiently but has the shortcoming of processing the dynamic updates of the tree structure (Bouganim, Ngoc, & Pucheral 2004: 87). Therefore, insertion or deletion of new nodes requires relabeling of the existing nodes (Ma & LI 2010: 107). In prefix labelling on the other hand, a path from the root is used to label each element and therefore the label of the parent node is the prefix for all the descendants (Kaplan, Milo, & Shabo 2002: 958). Society for Industrial and Applied Mathematics).This labelling scheme is advantageous in that it is dynamic and therefore

Sunday, February 2, 2020

Discussion 2 Week 11 Best Practices Assignment Example | Topics and Well Written Essays - 250 words

Discussion 2 Week 11 Best Practices - Assignment Example nagerial economics provided the theoretical frameworks for understanding the concept of demand and supply; as well as illuminating practitioners on differences in market structures (McGuigan, Moyer and Harris). From the experience in Katrina’s Candies, it was revealed that there are pricing strategies that should be applied depending on the market structure that the organization is in: either in an oligopoly or monopolist structure. Likewise, forecasting tools are analytical techniques which provide insights to the organization’s decision makers in terms of evaluating options according to anticipated results. The value of forecasting lies in the accuracy of identifying factors which could significantly affect the plans of the firm. As such, it is best practice to apply it and it helps in making responsible decisions based on projected goals. Finally, globalization takes into account increasing pressures for more competitors. As such, there is a need to undertake market research to discern the most-likely reaction and response of competitors should external factors affect the industry. The recession that affected the global market required application of transformed strategies to adapt and adjust to changes in demand and supply. As such, the reactions of competitors are useful inputs to work