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In this paper, we investigate the stability of patterns embedded as the associative memory distributed on the complex-valued Hopfield neural network, in which the neuron states are encoded by the phase values on a unit circle of complex plane. As learning schemes for embedding patterns onto the network, projection rule and iterative learning rule are formally expanded to the complex-valued case. The...
People often want to know the names of the objects that they can explain but don't know the names. It is, however, difficult to find such object names using conventional Web search engines. So, we propose a new method for finding the object name from the descriptions given by a user. This method consists of two phases, the extraction phase and the validation phase. In the extraction phase, candidate...
In this paper, an automatic planning system is developed. By our proposed technique, the vehicle routing planning is optimized using the evolutionary computation. A mutation which sa-tisfies all constraints is designed. Simulation results using real world data show the effectiveness of our developed system. Furthermore, in order to improve in the computational speed by paralleliza-tion, using GPGPU...
Failure of chemical plants is very dangerous. Although such failure is solvable with extension of a sensor, and an increase of the operator, a huge amount of funds are required for these initiatives, and it cannot be realized easily. A model has been built by neural networks, and a diagnosis method using that model was proposed. In this paper, we propose the alternative diagnosis method using fuzzified...
In this paper, we propose a method of converting a given sequence of search queries about a certain topic into a sequence of search queries about a given different topic. We define the concept of a search skeleton for topic conversion. A search skeleton represents relationships between keywords in a query. A given sequence of search queries is converted into a sequence of search skeletons, which are...
Query-recommendation systems based on inputted queries have become widespread. These services are effective if users cannot input relevant queries. However, the conventional systems do not take into consideration the relevance between recommended queries. This paper proposes a method of obtaining related queries and clustering them by using the history of query frequencies in query logs. We define...
It is difficult to watch TV contents in an active manner such that the user can interactively select TV contents, because TV is originally a broadcast information media. It is also difficult for users to judge whether the information of TV contents is valid because conventional TV contents are not directly linked with related or evidence information. One of the methods to cope with these problems...
Recently, it is getting more frequent to search not Web contents but local contents, e.g., by Google Desktop Search. Google succeeded in the Web search because of its PageRank algorithm for the ranking of the search results. PageRank estimates the quality of Web pages based on their popularity, which in turn is estimated by the number and the quality of pages referring to them through hyperlinks....
The structural and electrical properties of the mixed monolayers and Langmuir-Blodgett (LB) films of BEDOTTF-C 10 TCNQ/arachidic acid were examined. The domain structure of the monolayer at the air-water interface was investigated by Brewster angle microscope. The results were in good agreement with the monolayer dc conductivity behaviour. The conductivity of the LB films on the solid...
We prepared Bi 2 Sr 2 CaCu 2 O y single crystals by a self-flux method using a crucible with a cap. From the results, we found that the optimum temperature and period for melting the starting materials were 1000°C and 5 h, respectively. Plate-like Bi 2 Sr 2 CaCu 2 O y single crystals with the size of 6 2 mm 2 were obtained...
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