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Model Compression and Transfer Learning Based on Analysis of Pre-trained Parameters
Get PDFIn deep learning, huge models with a large number of parameters tend to perform better. However, the huge models need large amount of memory and a lot of time to train. Although model compression techniques have been studied to solve this problem, no method has been proposed to analyze the parameters and inherit their characteristics to my knowledge. Therefore, we propose another model compression method to extract representative parameters and integrate others into them. We note that trained parameters are unevenly distributed and form clusters in the parameter space. We apply K-means clustering to extract parameters which are representative in each cluster. In addition, to reduce the change in output after model compression, we adjust the weights to the later layers using the property that ReLU activation function is piecewise linear. Our proposed method makes it possible to compress models while maintaining their performance. Some experiments show that our method is effective in same input data on simple classification tasks. Furthermore, our method is effective in some model structures against changes in the distribution of input data in transfer learning
Simultaneous 9-phase control of multi-phase multi-coil motors for Reduction of d-axis current
Get PDFIn recent years, motors have been used in many fields, such as automobiles and ships. Motors are required higher output torque and efficiency.This paper proposes simultaneous 9-phase control method for multi-coil motors using digital direct drive technology, in which all phases are controlled together in a non-multiplexed multiphase method, in order to increase the maximum torque and reduce the d-axis current to achieve higher efficiency. The proposed method is verified by simulation using MATLAB / simulink
EVACUATION SUPPORT SYSTEM TO CONTROL THE EMOTIONAL LEVEL OF A CROWD : Verification using various conditions with individual differences
Get PDFGenerally speaking, when we face disasters, we will take the same actions as the surrounding environment. This psychological phenomenon is called " Majority synching bias" and is the main reason for delayed escape. In our previous work, we proposed a system that uses robots to express emotional behaviors to control the emotional level of people. In this study, we use various synchronization models including individual differences to simulate and prove the effectiveness of the proposed control system
Classification of EEG by a multi-layer reservoir neural network based on asynchronous cellular automaton neurons
Get PDFIn this paper, a multi-layer reservoir neural network is designed using an asynchronous cellular automaton neuron model. Furthermore, a learning method of the network based on the simulated annealing is proposed. It is shown that the network with reservoir layers can classify a set of several EEG. In addition, the classification performance of networks with various configurations were compared, and it is shown the best performing network is a two-layer reservoir neural network
HARDWARE IMPLEMENTSTION AND THEORETICAL ANALYSIS OF TUMOR IMMUNE MODEL BY MEANS OF HARDWARE-EFFICIENT ERGODIC CELLULAR AUTOMATON
Get PDFTwo types of ergodic cellular automaton models of tumor immune are presented in this paper. These two cellular automaton models can reproduce the bifurcation structure of mathematical tumor immune model properly. It was found that the proposed models can be implemented more hardware-efficient than the mathematical model. Additionally, it was also revealed that theoretical analysis can derive the values of bifurcation diagram produced in the steady state of the tumor immune model
DEVELOPMENT OF CESIUM ATOM SUPPLY SYSTEM IN LIQUID NITROGEN FOR PRESSURE-DEPENDENT MEASUREMENT OF HYPERFINE STRUCTURE SPLITTING OF ATOMS IN SUPERFLUID HELIUM
Get PDFIt is known that hyperfine structure energy splitting of atoms in superfluid helium (He II) is slightly different from that in vacuum. We have been developing a variable pressure vessel for laser RF/MW double resonance spectroscopy of Rb and Cs atoms in He II in order to measure the hyperfine structure splitting energy at different pressures and to clarify the effect of pressure on the interaction of atoms with He II.This study aims to develop a Cs atoms supply system in a variable pressure vessel for measurement of hyperfine structure splitting of cesium atoms in He II at various pressures ; however, as a pilot experiment, liquid nitrogen was used instead of He II in this study. First, the operation of laser-induced fluorescence (LIF) detection system using a photon counting method with a photomultiplier tube (PMT) was verified in a gas cell filled with Cs atoms. In an experiment using the ablation method to supply cesium atoms into a pressure-variable vessel filled with liquid nitrogen, emission from cesium atoms was confirmed. This result suggests that Cs atoms were supplied in a variable pressure vessel filled with liquid nitrogen
Experiences of Famous Places in Modern Tokyo : An Analysis of Illustrated Famous Places and Guidebooks
Get PDF本研究では，江戸東京の代表的な名所図会および案内本に記載された名所とその分布傾向を比較し，各史料の違いを明確にしたうえで，近代東京における人々の名所体験を論じることを目的とした。その際，東京における行政区画，山の手と下町という地形的特徴，近代交通網の整備・発展という観点から，名所体験と東京の地域性との関係について分析・考察した。その結果，近代東京における人々の名所体験は，明治・大正・昭和を経て，より高密度に，より広範囲に展開し，名所風景の近代化という側面だけでなく，名所体験として多様化したことを論じることができた。This study aimed to compare the famous places mentioned in the representative Meisho Zue （illustrated books about famous places）and guidebooks of Tokyo as well as their distribution trends, clarify the differences between historical sources, and discuss people’s experiences of famous places in modern Tokyo.This study analyzed and discussed the relationship between people’s experiences of famous places in Tokyo and the regional characteristics of Tokyo from three perspectives: （1） Tokyo’s administrative divisions, （2） topographical characteristics of the Yamanote （Tokyo’s upper areas） and Shitamachi （Tokyo’s downtown areas）, and （3） the development and improvement of the modern transportation network.The results show that people’s experiences of famous places in modern Tokyo developed more deeply through the Meiji, Taisho, and Showa periods. Moreover, they diversified not only in terms of the modernization of the sceneries of famous places but also as experiences of famous places
Determinants of reverse migrant intentions for hometowns of metropolitan residents
Get PDF研究の概要(和文)：本稿の目的は、大都市居住者に対象に、彼らの出身地へのUターン意向の規定要因を明らかにすることである。地方創生や東京一極集中の是正のために、地方出身者のUターン移動やその意向を解明することが、学術的にも政策的にも求められている。東京特別区と全政令指定都市の居住者に対するアンケート調査の個票データを用いて、現在居住地と出身地が異なる人のUターン意向の有無を被説明変数とした多変量解析を実施した。分析の結果、Uターン意向がある人の割合は36％で、少なからぬ人が将来出身地に帰りたいという意向を持っていることが明らかになった。若い人ほど、その意向は強い。また、出身地および現在居住地への愛着度、現住地の居住環境の悪さ、結婚生活や親友・仲間を重視する価値観等は、個人のUターン意向を規定していた―中でも、出身地への愛着度がUターン意向に与える効果が強かった。分析結果から、次の3点が示唆された。第一に、地方自治体等のUターン政策のメインターゲットは、若年層である。第二に、出身地への愛着度の強い効果をふまえれば、地方自治体等が行う郷土愛を育む取り組みは、Uターン者を増やすために有効であるとみられる。第三に、対象者に出身地における生活や友人等とのつながりを訴求することは、Uターン政策におけるポイントである。研究の概要(英文)：The purpose of this study is to explore the determinants of reverse migrant intentions to their hometowns for residents of large cities. To decrease the population concentration in Tokyo and revitalize the region, it is required, both academically and in terms of policy, to elucidate the reverse migrant intention and its determinants for local residents. Multivariate analyses were conducted in this study, using the individual data of the questionnaire survey for residents of the Tokyo Special Wards and all ordinance-designated cities of Japan, regarding the reverse migrant intentions of individuals whose current place of residence and place of origin were different. The analysis revealed that 36% of the respondents had a reverse migrant intention, implying that not a few people had an intention to return to their hometown in the future. The younger the respondents, the stronger the intention. In addition, the degree of attachment both to the place of origin and current place of residence, poor living environment of the current place of residence, and values emphasizing marriage and best friends, stipulated an individual\u27s reverse migrant intention. Among these, the effects of the attachment on reverse migrant intention was strong. The analysis of the results suggests the following three points. First, the main target of reverse migrant policies of local governments should be the younger generation. Second, given the strong effect of attachment to the place of origin, the efforts of the local governments to foster love for the place of origin may be effective in increasing the number of people returning. Third, appealing to the target person about their life in their hometown and their connection with friends might be key points in the reverse migration policy
Analysis of the current situation for regional revitalization in Tokushima City : Focusing on the trends of residents of condominiums with fixed-term leasehold rights
Get PDF研究の概要(和文)：首都圏など都市部への「一極集中」が問題視されて久しい。四国地方、徳島県の県庁所在地である徳島市も年々、人口が減少して、まちの中心部にあるアーケード街にも空きテナントが目立ち、人流もまばらである。地域活性化については多様な手法による報告がみられるが、本研究では、地域活性化を論じるにあたり「人」に着目する。大半の地方都市では人口・人流データは都市部と比較すると少ないことは自明である。よって、戸建て志向が強い地方都市において、新たな選択肢といえる「定期借地権付き分譲マンション」（定借マンション）の住民動向に着目した。人口減少が加速する徳島市であるが、当該マンションについては調査対象とした物件のなかに「空き」はなく、売買のみならず、相続や遺贈による継承もみられた。これは、定借マンションが地方都市における住居や資産としてのニーズを捕捉しており、住民志向に適った定借マンションが適切に配備されることにより、定住人口を維持していくことが可能であることの示唆である。地域活性化の起点が人であることからすると、定借マンションの増加によって地域活性化に寄与すると考えられた。研究の概要(英文)：It has been a long time since it was pointed out that the concentration was concentrated in urban areas such as the metropolitan area. The population of Tokushima City, which is the prefectural capital of Tokushima Prefecture, is decreasing year by year, and vacant tenants are conspicuous in the arcade area in the center of the city, and the flow of people is sparse. There are reports on regional revitalization by various methods, but in this study, focusing on people when discussing regional revitalization. It is selfevident that in most local cities, population and population data are less than in urban areas. Therefore, focused on the trend of residents of condominiums with fixed-term leasehold rights (fixed-rent condominiums), which can be said to be a new option in local cities with a strong tendency toward detached houses. In Tokushima City, where the population is declining, there are no vacant properties in the condominiums surveyed, and not only buying and selling but also inheritance was seen. This is because fixed-rent condominiums capture the needs of housing and assets in local cities, and it is possible to maintain the permanent population by appropriately deploying fixed-rent condominiums that are suitable for residents