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H. Takagi · SciRah

Researcher profile · Semantic Scholar

H. Takagi

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H. Takagi — researcher profile on SciRah

h-index: 28
Works: 190
Citations: 5,779

Most-cited papers

M/G/1 queue with multiple working vacations
De-An Wu, H. Takagi
2006Performance evaluation (Print)264 citations Open access
Semantic Scholar
Analysis and Application of Polling Models
H. Takagi
2000Performance evaluation (Print)139 citations
Semantic Scholar
An efficient heuristic for routing and wavelength assignment in optical WDM networks
Yongbing Zhang, Koji Taira, H. Takagi, S. Das
20022002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333)37 citations
Semantic Scholar
Movement-Based Location Management for General Cell Residence Times in Wireless Networks
R. Rodríguez-Dagnino, H. Takagi
2007IEEE Transactions on Vehicular Technology36 citations
Semantic Scholar
Spectrum Requirement Planning in Wireless Communications
H. Takagi, B. Walke
200834 citations
Semantic Scholar
Optimal Multicast Routing Using Genetic Algorithm for WDM Optical Networks
Johannes Hamonangan Siregar, Yongbing Zhang, H. Takagi
2005IEICE transactions on communications31 citations Open access
Semantic Scholar
Performance and QoS of Next Generation Networking
K. Goto, T. Hasegawa, H. Takagi, Yutaka Takahashi
200128 citations
Semantic Scholar
Counting handovers in a cellular mobile communication network: equilibrium renewal process approach
R. Rodríguez-Dagnino, H. Takagi
2003Performance evaluation (Print)27 citations Open access
Semantic Scholar
Queueing network model for obstetric patient flow in a hospital
H. Takagi, Yutaro Kanai, Kazuo Misue
2016Health Care Management Science23 citations
Semantic Scholar
Application of renewal theory to call handover counting and dynamic location management in cellular mobile networks
R. Rodríguez-Dagnino, H. Takagi
2010European Journal of Operational Research22 citations
Semantic Scholar
Evaluation of Website Usability Using Markov Chains and Latent Semantic Analysis
Muneo Kitajima, Noriyuki Kariya, H. Takagi, Yong-Bing Zhang
2005IEICE transactions on communications20 citations
Semantic Scholar
Performance analysis of the IEEE 1394 serial bus
Takashi Norimatsu, H. Takagi, H.Richard Gail
2002Performance evaluation (Print)16 citations Open access
Semantic Scholar
SECOND MOMENTS OF THE WAITING TIME IN SYMMETRIC POLLING SYSTEMS
S. Kudoh, H. Takagi, O. Hashida
200016 citations Open access
Semantic Scholar
Optimal wavelength converter placement in optical networks by genetic algorithm
Johannes Hamonangan Siregar, H. Takagi, Yongbing Zhang
201112 citations
Semantic Scholar
Dynamic mobility management for cellular networks: a delayed renewal process approach
R. Rodríguez-Dagnino, Jorge J. Ruiz-Cedillo, H. Takagi
200112 citations
Semantic Scholar
Multiserver queue with semi-Markovian batch arrivals
H. Takagi, De-An Wu
2004Computer Communications11 citations
Semantic Scholar
Call Loss and Forced Termination Probabilities in Cellular Radio Communications Networks with Non-Uniform Traffic Conditions
H. Takagi, Ken-ichi Sakamaki, Tohru Miyashiro
199911 citations
Semantic Scholar
Explicit Probability Density Function for the Length of a Busy Period in an M/M/1/K Queue
H. Takagi, Ahmed M. K. Tarabia
200910 citations
Semantic Scholar
Waiting time analysis of M[X]/G/1 queues with/without vacations under ramdom order of service discipline
Norikazu Kawasaki, H. Takagi, Yutaka Takahashi, Sung-Jo Hong +1 more
200010 citations Open access
Semantic Scholar
Queuing Network Model and Visualization for the Patient Flow in the Obstetric Unit of the University of Tsukuba Hospital
H. Takagi, Kazuo Misue, Yutaro Kanai
2014Annual SRII Global Conference9 citations
Semantic Scholar
Transient solution of a non-empty chemical queueing system
A. Tarabia, H. Takagi, A. El-Baz
2009Math. Methods Oper. Res.9 citations
Semantic Scholar
From computer science to service science: Queues with human customers and servers
H. Takagi
2014Comput. Networks8 citations Open access
Semantic Scholar
DISTRIBUTION OF THE NUMBER OF HANDOVERS IN A CELLULAR MOBILE COMMUNICATION NETWORK : DELAYED RENEWAL PROCESS APPROACH
R. Rodríguez-Dagnino, H. Takagi
20058 citations Open access
Semantic Scholar
Unified and refined analysis of the response time and waiting time in the M/M/ m FCFS preemptive-resume priority queue
H. Takagi
20177 citations Open access
Semantic Scholar
Waiting time in the M/M/$$ m $$m LCFS nonpreemptive priority queue with impatient customers
H. Takagi
2014Annals of Operations Research7 citations Open access
Semantic Scholar
Wireless handover distributions in mixed platforms with multimedia services
R. Rodríguez-Dagnino, Gonzalo Hernandez-Lozano, H. Takagi
2001SPIE Optics East7 citations
Semantic Scholar
Wireless cellular networks with Pareto-distributed call holding times
R. Rodríguez-Dagnino, H. Takagi
2001SPIE ITCom7 citations
Semantic Scholar
ANALYSIS OF THE RESPONSE AND WAITING TIMES IN THE M/M/$m$ LCFS PREEMPTIVE-RESUME PRIORITY QUEUE
H. Takagi
20166 citations Open access
Semantic Scholar
Fluid approximation analysis of a call center model with time-varying arrivals and after-call work
Y. Kawai, H. Takagi
20156 citations Open access
Semantic Scholar
WAITING TIME IN THE M/M/$ m $/$ ( m + c ) $ QUEUE WITH IMPATIENT CUSTOMERS
H. Takagi
20146 citations Open access
Semantic Scholar
Research and Education of SSME in Japanese Universities
H. Takagi
20086 citations
Semantic Scholar
Fast routing and wavelength assignment heuristics for large-Scale WDM optical networks
Johannes Hamonangan Siregar, H. Takagi, Yongbing Zhang
20036 citations
Semantic Scholar
Multiserver queue with semi-Markovian batch arrivals with application to the MPEG frame sequence
H. Takagi, De-An Wu
2002SPIE ITCom6 citations
Semantic Scholar
A QUEUEING MODEL WITH INPUT OF MPEG FRAME SEQUENCE AND INTERFERING TRAFFIC
S. Yagyu, H. Takagi
20026 citations Open access
Semantic Scholar
ANALYSIS OF A QUEUEING MODEL FOR A CALL CENTER WITH IMPATIENT CUSTOMERS AND AFTER-CALL WORK
H. Takagi, Y. Taguchi
20145 citations Open access
Semantic Scholar
Counting the number of renewals during a random interval in a discrete-time delayed renewal process
H. Takagi, R. Rodríguez-Dagnino
2007Operations Research Letters5 citations
Semantic Scholar
System Capacity Calculation for Packet-Switched Traffic in the Next Generation Wireless Systems -- Batch Arrival M/G/1 Nonpreemptive Priority Queueing Model for Transmission over a Radio Channel
H. Takagi, H. Yoshino, N. Matoba, Azuma Mitsuhiro +1 more
20055 citations
Semantic Scholar
Detailed Analysis of the Response Time and Waiting Time in the M/M/m FCFS Preemptive-Resume Priority Queue
H. Takagi
2015International Conference on Queueing Theory and Network Applications4 citations
Semantic Scholar
Visualizing the Overview of Temporal Patterns of Patients ’ Activities
Kazuo Misue, Yutaro Kanai, H. Takagi
20134 citations
Semantic Scholar
Call loss probabilities in CDMA cellular mobile communication networks
Minoru Ohmikawa, H. Takagi
20014 citations Open access
Semantic Scholar
WAITING TIME ANALYSIS FOR MX/G/1 PRIORITY QUEUES WITH/WITHOUT VACATIONS UNDER RANDOM ORDER OF SERVICE DISCIPLINE
Norikazu Kawasaki, H. Takagi, Yutaka Takahashi, Sung-Jo Hong +1 more
20004 citations Open access
Semantic Scholar
Progress in the Healthcare Service Innovation Project at the Tsukuba University Hospital
H. Takagi, H. Kurata, Yukihiko Okada, Maiko Shigeno +3 more
2012Annual SRII Global Conference3 citations
Semantic Scholar
University-Initiated Services Innovation
H. Takagi
2007The 9th IEEE International Conference on E-Commerce Technology and The 4th IEEE International Conference on Enterprise Computing, E-Commerce and E-Services (CEC-EEE 2007)3 citations
Semantic Scholar
Mobile-phone Mail Communication and Characteristics of Friendship Development in High School Students
R. Akasaka, H. Takagi
20053 citations Open access
Semantic Scholar
Mobility management for general distributed location areas
R. Rodríguez-Dagnino, Jorge J. Ruiz-Cedillo, H. Takagi
2005SPIE Optics East3 citations
Semantic Scholar
Efficient Lightpath Routing in Wavelength-Routed Optical Networks
Koji Taira, Yongbing Zhang, H. Takagi, S. Das
2002International Conference on Information Networking3 citations
Semantic Scholar
Markov chain analysis for the neonatal inpatient flow in a hospital
Yutaro Kanai, H. Takagi
2020Health Care Management Science2 citations
Semantic Scholar
Times until service completion and abandonment in an M/M/ \begin{document}$ m$\end{document} preemptive-resume LCFS queue with impatient customers
H. Takagi
20172 citations Open access
Semantic Scholar
Times to Service Completion and Abandonment in the M/M/m Preemptive LCFS Queue with Impatient Customers
H. Takagi
2016International Conference on Queueing Theory and Network Applications2 citations
Semantic Scholar
Modeling of handover counting and location management for wireless mobile networks
R. Rodríguez-Dagnino, H. Takagi
2007SPIE Optics East2 citations
Semantic Scholar

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