a tandem agv configuration connects all cells of a manufacturing area by means of non-overlapping, sin-gle-vehicle closed loops. each loop has at least one additional p/d station, provided as an interface between adjacent loops. this study describes the development of three tabu search algorithms for the design of tandem agv systems. the first algorithm was developed based on the basic definiti...

A topical collection on “Advances in Search and Rescue at Sea” has appeared in recent issues of Ocean Dynamics following the latest in a series of workshops on “Technologies for Search and Rescue and other Emergency Marine Operations” (2004, 2006, 2008 and 2011), hosted by IFREMER in Brest, France. Here we give a brief overview of the history of search and rescue at sea before we summarize the ...

This paper proposes a history-based structured learning approach that jointly extracts entities and relations in a sentence. We introduce a novel simple and flexible table representation of entities and relations. We investigate several feature settings, search orders, and learning methods with inexact search on the table. The experimental results demonstrate that a joint learning approach sign...

EEectiveheuristic algorithmsfor combinatorialproblemsare based on integrating local neighborhood search with history-sensitive schemes, where the information collected during the previous search phase is used to direct the future eeort. In particular, some algorithms (like Strict Tabu Search and Reactive Tabu Search) need to detect whether a connguration has already been encountered during the ...

The wide adoption of smartphones eliminates the time and location barriers for people’s daily information access, but also limits users’ information exploration activities due to the small mobile screen size. Thus, cross-device web search, where people initialize information needs on one device but complete them on another device, is frequently observed in modern search engines, especially for ...

background: to seek pleasure is man’s innate nature. in his search for gratification, man has discovered a world of substances that intoxicated him. those who fell within its trap, their life changed, their families aggrieved and they shrank from company. the addiction remained alone in the end. to many death was a relief. methods: a community based cross-sectional study was conducted in the ca...

background: knowing the rate of overlapping in results obtained from information retrieval tools is important to prevent waste of time. medical and health-related information has an outstanding place among the variety of information available on the internet. hence, this research aimed to study the rate of overlap among medical search results derived from mesh (medical subject headings) in gene...

Firms typically use query-based search to help consumers find information/products on their websites. We consider the problem of optimally ranking a set of results shown in response to a query. We propose a personalized ranking mechanism based on a user’s search and click history. Our machine learning framework consists of three modules – (a) Feature generation, (b) NDCG-based LambdaMART algori...