Queueing theory & stochastic processes
Busy periods, vacation queues, service systems and stochastic models.
Research
Research by Igor Kleiner
Research across probability, stochastic processes, queueing theory, algorithms and data analysis — from theoretical models to applied problems in computer vision and blood screening.
6peer-reviewed journal articles
100+citations
4Google Scholar h-index
Research areas
What I work on
My research connects mathematical modeling, algorithms and data-driven applications.
Algorithms & search games
Exact strategies, search costs, matching models and combinatorial decision problems.
Probability & applied statistics
Distributional approximations, uncertainty and probabilistic modeling.
Data-driven applications
Applications ranging from computer vision and property testing to blood-screening systems.
Current research · 2026
New work
Research accelerated in August–September 2026: one active arXiv preprint and seven additional manuscripts already submitted to journals.
An Exact Solution of the Two-Ball Multi-Look Search Game with Three Boxes and Heterogeneous Costs
An exact solution of a heterogeneous multi-look search-cost game with adaptive search strategies.
Open on arXiv →Seven additional manuscripts
The active submission pipeline spans enumerative combinatorics, integer compositions, queueing theory, random structures and discrete probability.
- Return-Growth Sequences: Euler Enumeration and Pattern Avoidance
- Balanced Even Parts in Integer Compositions: A Bijection to Nonnegative Walks
- Initial Runs in Integer Compositions: Lambert Series and Generalized Divisor Sums
- Completion-Shock Queues: Departure-Induced Invalidation and Endogenous Service Correlation
- Lit Cells in Integer Compositions: An Exact Identity and Sharp Asymptotics
- The Fragile Coupon Collector: Random Deadlines, Critical Fragility, and Optimal Sampling
- Discrete-Time M/M/1-Type Queues with Vacations and Disasters
Status: submitted / in editorial process. These manuscripts are listed separately from published papers and public preprints.
Next projects
In parallel, work continues on level sequences, random compositions, reconstruction problems and other probabilistic-combinatorial models. Public links will be added as preprints or accepted versions become available.
Published research
Peer-reviewed journal articles
Six journal articles. Journal metadata is based on the University of Haifa research portal and publisher records.
2023
A decomposition property for an MX/G/1 queue with vacations
Indagationes Mathematicae 34(5), 973–989
2023
Busy Periods for Queues Alternating Between Two Modes
Methodology and Computing in Applied Probability 25(2), Article 60
2018
FCFS Parallel Service Systems and Matching Models
Performance Evaluation 127–128, 253–272
2017
Recycled Incomplete Identification Procedures for Blood Screening
European Journal of Operational Research 259(1), 330–343
2016
A Numerical Study of Small Parameter Behavior of Some Families of Distributions
Communications in Statistics – Simulation and Computation 45(10), 3534–3547
2011
Applying Property Testing to an Image Partitioning Problem
IEEE Transactions on Pattern Analysis and Machine Intelligence 33(2), 256–265
Academic profiles
Research profiles and indexes
Citation counts vary between databases, so the website uses a stable rounded threshold of 100+ citations.
Google ScholarCitations and bibliometric metricsUniversity of Haifa CRISOfficial institutional publication recordarXivPreprints and open research versionsResearchGatePublications, reads and academic networkDBLPCurated computer-science bibliographyResearch in Israeli CollegesExternal Israeli researcher profile connecting HIT, Data Science, AI in Education, statistics, algorithms and the book.ORCIDPersistent researcher identifier linking academic records across platforms.