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Web log mining is the most important method in Web data mining, and data preprocessing is the primary work. In order to find more value access mode and reduce the data size from the Web, find the data of users and even between users, this paper puts forward a method of Web log data preprocessing based on user characteristic of interests, and then put forward some concepts such as user interest, user...
We develop a single manufacturer single retailer two-echelon supply chain model which has dual distribution channels. The problem of pricing between different channels is considered when the manufacturer is fairness concerned. Three different situations are considered: the centralized supply chain model, the decentralized supply chain model and the decentralized supply chain model with fairness concerned...
People in the past thought there must be a replacement to the healthcare system of that time that almost never provides practitioners timely and efficient access to a patient's complete health history. An electronic health record (EHR) is an evolving concept defined as a systematic collection of electronic health information about individual patients or populations.Emerging electronic health record...
The R&D spillover effects of three industries 1997–2002 in China was analyzed with Erik Dietzenbacher method. The results showed that the R&D spillover of three industries mainly passed from the tertiary industry to three industries. Strengthening the contributor effect of the tertiary industry among three industries is the main direction of the government policy. The policy of increasing...
In this paper, a new method to solve the hybrid genetic algorithm based on dynamic coding by bargain model in inserting order is proposed. A new coding method for the inserting order is presented also. Corresponding crossover and mutation operators are given. These operators can easily keep the feasibility of solution. They can also satisfy the stochastic demand of genetic algorithm. Finally, an example...
Polybutadiene-graft-polystyrene (PB-g-PS) latex with a core-shell weight ratio of 50/50 was used to modify cement mortar. In the constant water-cement ratio of 0.5, and curing 24h at 20 °C, RH90% air followed using two curing methods (6d immersed in 20°C water followed by 21d at 20°C, RH 65%air or 27d at 20°Cwater). At the different polymer-cement weight ratios (P/C), polymer-modified mortars (PMMs)...
A spectrometer is used to measure numerical aperture (NA) of photonic crystal fibers (PCFs), and the high-precision result is obtained. We get the NA at any wavelength in 500∼900nm range, which is determined by light source and spectrometer. The measured results and theoretical calculation value match very well.
In this paper, we present two approaches to define fuzzy sublattice. Firstly, by the use of the relations between fuzzy points and fuzzy subsets, definition of (szligmacr,alphamacr) fuzzy sublattice is given. We have shown that the acceptable non-trival concepts obtained in this manner are the (isin,isin)-fuzzy sublattice, (isin,isinnuq)-fuzzy sublattice and (isinmacr,isinmacrnuqmacr)-fuzzy sublattice...
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