摘要:
A computer system and method uses one or more virtual wish lists of one or more shoppers over a computer network. One process extracts information from online address books or other personal databases, and creates lists of recipients for whom a shopper wants to purchase products. A second process obtains virtual wish lists of recipients by observing their visits to online stores, and other online behavior. Recipients are asked for permission to make this data available to other shoppers, online stores, and other Web sites. Recipients can modify their virtual wish lists, and selectively approve of their use by other shoppers, etc. A third process creates shopping lists for the recipients, and generates lists of recommended products for shoppers to buy for intended recipients.
摘要:
A method is provided for identifying a cost-minimizing bid set in a reverse combinatorial auction subject to various business rules for all-or-nothing bundled bids. The method includes introducing a decision variable for each bid, introducing a counting variable to indicate whether bids from a supplier are chosen in an optimal bid set, modeling demand constraints for each item using the bid variables, modeling minimum and maximum numbers of suppliers based on the counting variables, introducing dummy variables to ensure existence of feasible solutions, for a given cost formulating an objective of choosing bids that arrive early based on an additional timestamped objective with the given cost level as a constraint, and introducing price modifications to handle the formulated objective of choosing bids that arrive early.
摘要:
A fast computer implemented method generates near-optimal solutions to the multi-objective inventory matching problem by solving for multiple objectives simultaneously and generating multiple non-dominating solutions. The method implements a multi-assignment backjumping algorithm that consists of three steps. The first step is a rappeling step in which a feasible solution is created by applying Iterative Bipartite Matching and maximum flow algorithm. Near-optimal feasible solutions are stored in a non dominated set. The second step is to use a multi-key sort to identify undesirable matches in a given feasible solution. The third step is backlifting the solution by removing undesirable matches from the feasible solution and places those undesirable matches on a no good set of matches. If the feasible solution is non-dominated, a copy is stored in a non-dominated set. The feasible solution is finally provided as input to the repelling step.
摘要:
An efficient computer implemented method is used to design slabs for production from an order book. This method minimizes the number of slabs designed to fulfill an order book. This method is based on a heuristic algorithm which is a variant of the greedy approach for the set covering method. The variations are novel in three ways. First, designing slabs using the flexibility in the order size; second, using weight for choosing large slabs; and third, controlling the exponential nature of enumeration of the set of all subsets by constructing only the largest slab at each step.
摘要:
A system and method for configuring sell bids. The system and method use rules and inference engines in order to configure sell bids in view of Request for Quotes (RFQs). The system and method include a data aggregator that integrates data from two or more enterprise data sources into an aggregated enterprise database and a knowledge base database. A bid configurator constructs one or more sell bid candidates for one or more target RFQs by using at least one inference engine and the extracted facts and rules from the knowledge database.
摘要:
An oil suction propeller structure for a hermetically sealed compressor includes a rotor, a crank shaft pressure-inserted in the rotor, an oil guide piece pressure-inserted in a lower portion of the crank shaft, a lower wing fixedly inserted in the oil guide piece and soaked in an oil, an upper wing having a width thereof wider than that of the lower wing, and an intermediate portion extending from the lower wing and gradually broadening in width toward the upper wing. The oil suction propeller structure improves oil supply capacity, and minimizes a whirling sound and a dropping noise which may occur during the rotation of the oil guide piece and the oil suction propeller thereof, for thereby enhancing reliability of the hermetically sealed compressor.
摘要:
A scheduling method suitable for use in a primary steel production area operating in either direct rolling or direct hot charge rolling modes, collectively referred to as synchronized rolling. The steel production area comprising a continuous caster, for input of slabs to a hot strip mill. An order load for some finite period (e.g. one week) is received as input to the method. The method generates a caster schedule and a hot strip mill schedule which fills the order load with the objective of operating the continuous caster and the hot strip mill with minimal interruption. The generated schedule works within the constraints imposed by both the continuous caster and the hot strip mill. The schedule generation process also considers key operating constraints of individual facilities as well as those on which the facility has dependencies. The schedule also addresses objectives such as maximizing throughput, maximizing on-time delivery, and minimizing operating costs.
摘要:
A method for generating solutions for sequencing problems of a type that can develop in artificial intelligence or operation research. The method includes the steps of finding multiple sets of subsequences of near optimal quality for a given finite number of n items wherein each item has a set of attributes and wherein there exists a set of constraints and objectives defined on the n items; and satisfying the constraints simultaneously such that the number of subsequences is a minimum.