DSpace コレクション: 2018-12-012018-12-01http://hdl.handle.net/10928/11062024-03-28T13:32:57Z2024-03-28T13:32:57Zモバイルエージエントシステム AgentSphereのためのマイグレーションおよびセキュリティに関するコアシステムの強化ディダ, ベサリ甲斐, 宗徳http://hdl.handle.net/10928/11312022-03-21T17:00:26Z2018-11-30T15:00:00Zタイトル: モバイルエージエントシステム AgentSphereのためのマイグレーションおよびセキュリティに関するコアシステムの強化
著者: ディダ, ベサリ; 甲斐, 宗徳
抄録: We at the software laboratory at Seikei University are developing a platform that enables parallel and distributed processing in an autonomous manner. This platform is called AgentSphere and one of its main traits is a strong code migration which henceforth shall be referred to as "Strong Migration". Through this migration, autonomous code which is referred to as "Agent" migrate between the platform while retaining its previous run state. In this paper, we talk about two main improvements to this system. First, the current serialization was using unoptimized java serialization which was slow and had overhead. We solve this problem by implementing a customizable serializer which serializes in Json format and is much faster than the default one. Second, we close off security gaps created by the unorthodox usage of our Strong Migration which accepts unknown classes and deserializes them inside the runtime.2018-11-30T15:00:00ZTree-reweighted近似によるIsing逆問題の解佐野, 崇http://hdl.handle.net/10928/11322022-03-21T17:00:26Z2018-11-30T15:00:00Zタイトル: Tree-reweighted近似によるIsing逆問題の解
著者: 佐野, 崇
抄録: To develop an efficient and accurate method for learning in the Ising model, we apply the tree-reweighted approximation to compute the partition function. Using the tree-reweighted approximation, we can optimize the rigorous lower bound of the exact objective function. By solving the moment-matching and self-consistency conditions analytically, we can derive the interaction matrix as a function of the given data statistics. With this solution, we can obtain the optimal interaction matrix without iterative computation. To evaluate the accuracy of the proposed inverse formula, we compared our results to those obtained by existing inverse formulae obtained by other approximations. In an experiment to reconstruct the interaction matrix, we found that the proposed formula returns the best estimates in strongly-attractive regions for various graph structures.2018-11-30T15:00:00Zタスクグラフの階層的マクロタスク化とそのタスクスケジューリング手法の提案長谷川, 幹甲斐, 宗徳http://hdl.handle.net/10928/11332022-03-21T17:00:26Z2018-11-30T15:00:00Zタイトル: タスクグラフの階層的マクロタスク化とそのタスクスケジューリング手法の提案
著者: 長谷川, 幹; 甲斐, 宗徳
抄録: One of the key methods for the optimized parallel processing of any program is task scheduling. This intends to minimize the execution time of the entire program by determining an optimal schedule for allocating all tasks, which are processing units comprising the program, onto available processor elements into pieces. Due to complexity of calculation and being a large-scale problem, the optimization problem is extremely challenging to solve with the current algorithms in a practical amount of time. Authors have studied the method of partially optimizing task graph as a technique of task scheduling for large-scale problems. This paper reports on scheduling method that supports hierarchical macro for task groups.2018-11-30T15:00:00Z炭素繊維強化プラスチックの電解酸化法における電解液の検討大島, 一真松田, 伸也保阪, 真喜里川, 重夫http://hdl.handle.net/10928/11342022-03-21T17:00:26Z2018-11-30T15:00:00Zタイトル: 炭素繊維強化プラスチックの電解酸化法における電解液の検討
著者: 大島, 一真; 松田, 伸也; 保阪, 真喜; 里川, 重夫
抄録: In order to recover carbon fiber from CFRP (Carbon Fiber Reinforced Plastics), the effect of electrolyte solution in the electrochemical oxidation treatment of the unidirectional CFRP was investigated. A two-electrode cell using a CFRP monolayer as an anode was used for the treatment. As a result, the weight loss of the CFRP depended on the treatment time, although the carbon fiber was damaged in case of over 15 h treatment. From the damage mechanism estimation based on the observation of the CFRP after the treatment, it was suggested that the generation of localized high electric field caused the damage of carbon fiber recovered from the CFRP. From the investigation of the electrolyte solution and the its pH, a clear correlation between the weight loss and the electrolyte solution was not obtained.2018-11-30T15:00:00Z