期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Matching consumers and stage-stations on community group buying platforms:An approach with hierarchy algorithms
1
作者 Liyuan Lin 《中国科学技术大学学报》 CSCD 北大核心 2024年第11期55-65,54,67,共13页
Motivated by the business model called“community group buying”(CGB),which has emerged in China and some countries in Southeast Asia,such as Singapore and Indonesia,we develop algorithms that could help CGB platforms... Motivated by the business model called“community group buying”(CGB),which has emerged in China and some countries in Southeast Asia,such as Singapore and Indonesia,we develop algorithms that could help CGB platforms match consumers with stage-stations(the picking up center under the CGB mode).By altering the fundamental design of the existing hierarchy algorithms,improvements are achieved.It is proven that our method has a faster running speed and greater space efficiency.Our algorithms avoid traversal and compress the time complexities of matching a consumer with a stage-station and updating the storage information to O(logM)and O(MlogG),where M is the number of stage-stations and G is that of the platform’s stock-keeping units.Simulation comparisons of our algorithms with the current methods of CGB platforms show that our approaches can effectively reduce delivery costs.An interesting observation of the simula-tions is worthy of note:Increasing G may incur higher costs since it makes inventories more dispersed and delivery prob-lems more complicated. 展开更多
关键词 spatial matching dynamic arrival platform business community group buying hierarchy algorithm
在线阅读 下载PDF
关于住宅建筑面积密度问题的探讨
2
作者 黄富厢 《城市规划》 1980年第4期5-12,共8页
本文根据大城市现阶段住宅建设需要,着重探讨多层高密度和多、高层相结合的高密度两种范畴内的有关问题。 一、多层高密度 我国大城市住宅建设,以五层行列式布置为主。影响密度的因素涉及层数N、长度L、端距l、进深B、间距D(纬度φ及高... 本文根据大城市现阶段住宅建设需要,着重探讨多层高密度和多、高层相结合的高密度两种范畴内的有关问题。 一、多层高密度 我国大城市住宅建设,以五层行列式布置为主。影响密度的因素涉及层数N、长度L、端距l、进深B、间距D(纬度φ及高度角h)、层高hi、窗台高W、檐部附加高度Δ等因素并可用下式表之(图a、b): 展开更多
关键词 面积密度 住宅建筑 住宅 问题的探讨 点式 大进深 多高 高密度 院落住宅 经济层
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部