- Opportunistic and Delay-Tolerant Networks
- Mobile Ad Hoc Networks
- Environmental DNA in Biodiversity Studies
- Multimedia Communication and Technology
- Identification and Quantification in Food
- Vehicular Ad Hoc Networks (VANETs)
- Peer-to-Peer Network Technologies
- Caching and Content Delivery
- Complex Network Analysis Techniques
- Microbial Community Ecology and Physiology
- scientometrics and bibliometrics research
- Bioinformatics and Genomic Networks
- Image and Video Quality Assessment
- Evolutionary Algorithms and Applications
- Human Mobility and Location-Based Analysis
- Robotic Path Planning Algorithms
- Metaheuristic Optimization Algorithms Research
- Indoor and Outdoor Localization Technologies
- Intellectual Property and Patents
- Innovation and Knowledge Management
- Silicon and Solar Cell Technologies
- Web visibility and informetrics
- Transportation and Mobility Innovations
- Advancements in Photolithography Techniques
- Thin-Film Transistor Technologies
Takara (Japan)
2023-2024
Kyoto Seika University
2020-2024
Ryukoku University
2010-2022
Panasonic (Japan)
2021
In-Q-Tel
2018-2020
Aichi Gakuin University
2019-2020
Nara Institute of Science and Technology
2007-2019
Hiroshima City University
2008-2019
Tokyo City University
2018
Ritsumeikan University
2013-2014
Abstract The field of environmental DNA (eDNA) analysis has rapidly developed over the past decade and technique become widely used for detecting aquatic macroorganisms in a variety habitats. However, measurement protocols have been individually different eDNA studies this may lead to confusion others who wish incorporate their research. It is important therefore synthesize current status of—and future challenges to—the methodology analysis. We here synthesized from total 438 published were...
Abstract In this article, we performed a comparative study to investigate the performance of methods for detecting emerging research fronts. Three types citation network, co‐citation, bibliographic coupling, and direct citation, were tested in three domains, gallium nitride (GaN), complex network (CNW), carbon nanotube (CNT). constructed each domain, papers those domains divided into clusters detect front. We evaluated type front by using following measures cluster: visibility, measured...
Abstract In this article, we build models to predict the existence of citations among papers by formulating link prediction for 5 large‐scale datasets citation networks. The supervised machine‐learning model is applied with 11 features. As a result, our learner performs very well, F1 values between 0.74 and 0.82. Three features in particular, link‐based Jaccard coefficient difference betweenness centrality , cosine similarity term frequency–inverse document frequency vectors, largely affect...
Abstract An understanding of the reproductive biology aquatic organisms is crucial for efficient conservation and management species and/or populations. Nevertheless, conventional spawning surveys such as visual‐ capture‐based monitoring generally require laborious, time‐consuming work are subject to biases observer bias, well miscounts due false spawning. In addition, direct capture often damages eggs or individuals. Thus, an noninvasive approach events on would be a valuable tool...
Abstract In this article, we investigated the factors determining capability of academic articles to be cited in future using a topological analysis citation networks. The basic idea is that will have many citations were “similar” position topologically past. To validate hypothesis, correlation between times and three measures centrality: clustering centrality, closeness betweenness centrality. We also analyzed effect aging as well self‐correlation cited. Case studies performed two following...
Abstract Recent advances in environmental DNA (eDNA) analysis using high‐throughput sequencing (HTS) enable evaluation of intraspecific genetic diversity a population. As the provides invaluable information for wildlife conservation and management, there is an increasing demand to apply eDNA population genetics phylogeography by quantitative diversity. However, evaluations not straightforward because number sequence reads obtained HTS may be index quantity eDNA. In this study, quantitatively...
In this paper, we propose a method which efficiently collects, retains and propagates traffic information using inter- vehicle communication with "message ferrying" technique used in vehicular ad hoc network (VANET). the proposed method, use buses as message ferries travel along regular routes. order to improve propagation efficiency low- density areas, collect much possible from cars their proximity, periodically disseminate collected neighboring cars. We have implemented system on...
Purpose This paper seeks to propose a method of discovering uncommercialized research fronts by comparing scientific papers and patents. A comparative study was performed measure the semantic similarity between academic patents in order discover that do not correspond any Design/methodology/approach The authors compared structures citation networks publications with those analysis measured sets natural language processing. After documents (papers/patents) each layer were categorized...
To address the large amount of energy wasted by blockchains, we propose a decentralized consensus protocol for blockchains in which computation can be used to search good approximate solutions any optimization problem. Our allows finding problems submitted nodes (called clients). works similar way proof-of-work, and it makes evaluate number solution candidates add new block chain. A client provides program that implements algorithm finds evaluating candidates. The node best is rewarded...
Phylogeography is an integrative field of science linking micro- and macro-evolutionary processes, contributing to the inference vicariance, dispersal, speciation, other population-level processes. Phylogeographic surveys usually require considerable effort time obtain numerous samples from many geographical sites covering distribution range target species; this associated high cost limits their application. Recently, environmental DNA (eDNA) analysis has been useful not only for detecting...
We propose a personal navigation system (called PNS) which navigates tourist through multiple destinations efficiently. In our PNS, can specify with desired arrival/stay time and preference degree. The calculates the route including part of satisfying tourist's requirements him/her. For above search problem, we have developed an efficient algorithm using genetic algorithm. designed implemented PNS as client-server so that portable device users use Internet. Experiments general map data PDAs...
In this paper, we propose a method for cars to autonomously and cooperatively collect traffic jam statistics estimate arrival time destination each car using inter-vehicle communication. the method, target geographical region is divided into areas, measures pass through area. Traffic information collected by exchanging between order improve accuracy of estimation, introduce several mechanisms avoid same data be repeatedly counted. Since wireless bandwidth usable limited, proposed includes...
Abstract Information about species distribution is crucial to ecological studies. Environmental DNA (eDNA) analysis has recently been used estimate the of aquatic organisms. Several analytical methods including metabarcoding and species-specific PCR are being for eDNA analysis. However, when only a few targeted, not cost-effective because wasted consumption read due amplification non-target DNA. On other hand, requires tests be repeated multiple times resulting in consuming more templates,...
Article Free Access Share on Media-based navigation for hypermedia systems Authors: Kyoji Hirata C&C Research Laboratories, NEC Corporation, 4-1-1, Miyazaki, Miyamae-ku, Kawasaki, Kanagawa, Japan JapanView Profile , Yoshinori Hara Naoki Shibata Information Technology Fusako Hirabayashi Authors Info & Claims HYPERTEXT '93: Proceedings of the fifth ACM conference HypertextDecember 1993Pages 159–173https://doi.org/10.1145/168750.168818Published:01 December 1993Publication History...
When a large-scale disaster strikes, the communications infrastructure is usually unavailable. However, accurate and timely information of area important because first responders rely on this to assess situation in affected provide an effective immediate assistance. In paper, data collection method from interest (AoI) within zone proposed that uses mobile phones people serve as sensing nodes. order for maximum AoI coverage be achieved while minimizing delay, we propose disruption tolerant...
One of the important issues in wireless sensor network (WSN) is to k-cover target sensing field and extend its lifetime. We propose a method maximize WSN lifetime by moving mobile nodes appropriate positions for consisting both static which periodically collect environmental information. Our problem NP-hard. So, we genetic algorithm (GA) based scheme find near optimal solution practical time. In order speed up calculation, devised check sufficient condition k-coverage field. For that sink...
In this paper, we propose a task scheduling algorithm for multicore processor system which reduces the recovery time in case of single fail-stop failure processor. Many recently developed processors have multiple cores on die, so that one computing node results many processors. processor, all tasks been executed failed to be recovered at once. The proposed is based an existing check pointing technique, and assume state saved when nodes send next node. If series computations depends former...