Browsing by Author "Cheng, Chun-Hung"

Now showing 1 - 4 of 4
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    The Application of Single-Pass Heuristics for U-Lines
    (Elsevier, 2009) Balakrishnan, Jaydeep; Cheng, Chun-Hung; Ho, Kin-Chuen; Yang, Kum Khiong
    U-lines have been adopted in many manufacturing settings as part of JIT implementation. In this paper, we examine the applicability of existing straight-line heuristics for obtaining a balance on a U-line. We modify 13 single-pass heuristics and study the effectiveness of various heuristics under different problem conditions. An extensive computational study is carried out to help identify the best heuristics. In addition, we compare recent U-line procedures with a single-pass heuristic using some literature problems. Based on a single-pass heuristic, we compare the configurations of a straight- and U-line.
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    Product Recommendation Algorithms in the Age of Omnichannel Retailing - An Intuitive Clustering Approach
    (Elsevier, 2018-01) Balakrishnan, Jaydeep; Cheng, Chun-Hung; Wong, Kam-Fai; Woo, Kwanho
    In today’s omnichannel retailing world, product recommendations have become important in retailer strategy. Using big data to recommend complementary products can help improve customer service and thereby increase profitability. A common implementation for studying buying behaviour of customers uses a 0–1 matrix linking the customers to the products they have purchased in the past. However, this raw matrix does not automatically reveal buying patterns. Further processing of this matrix is necessary to find valuable information. In this work, we adopt an intuitive co-clustering algorithm for locating useful patterns in the matrix. The advantage of duplication of products in the clustering process will be shown. A further advantage of the algorithm from a managerial perspective is that it is intuitive rather than a black box type and thus may increase the chances of it being actually adopted.
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    A Quantitative Model for Understanding Multiple Vendor IT Outsourcing
    (Inderscience Publishers, 2010) Balakrishnan, Jaydeep; Sounderpandian, Jayavel; Cheng, Chun-Hung; Wong, Wai-Chi
    In this research, we analyse information technology (IT) outsourcing decisions involving multiple vendors and apply modelling techniques to systematically evaluate such outsourcing decisions. We take costs of in-house production, outsourcing, and coordination into consideration simultaneously. Further we also consider the performance of vendors. To make our work more adaptable, we make different assumptions on the interaction of different jobs. For a case considering the interaction of a pair of jobs at a time, a linear model is formulated. An example problem is solved using a practical spreadsheet based optimiser and the managerial use of this model in decision support is emphasised. For a case considering multiple-way interactions among jobs, we formulate a non-linear model. We discuss how to reformulate and solve an equivalent linearised model. An example problem is also presented for illustrative purposes.
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    Recent advances in dynamic facility layout research
    (INFOR: Information Systems and Operational Research, 2017-09-08) Zhu, Tianyuan; Balakrishnan, Jaydeep; Cheng, Chun-Hung
    It has been nearly two decades since the last major review of the literature in dynamic facility layout. In these intervening years, many advances have been made in modelling as well as in the solution methods. In this study, models and solutions that address the dynamic facility layout problem (DFLP) are examined and categorized. Our review finds that the recent DFLP models consider more complex design features and constraints. Further, only a few DFLP studies have adopted exact methods, while most of the effective algorithms used are heuristics, metaheuristics and hybrid approaches. Future research directions are also identified.