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October 18, 2025How Queueing Theory Explains Conference Paper Submissions
Imagine a busy restaurant with limited tables. Many hungry customers arrive, but only some get seated immediately. Those turned away might come back later, joining new customers and creating even longer lines. Academic conferences face a similar challenge with paper submissions. When conferences reject a large percentage of papers, many authors simply resubmit their work in the next cycle. This creates a growing pool of unaccepted papers that reviewers must evaluate repeatedly alongside new submissions.
The mathematics of queueing theory reveals a surprising pattern. When acceptance rates increase slightly, the pool of unaccepted papers shrinks dramatically. A percentage of this smaller pool then becomes roughly the same number of accepted papers as when acceptance rates were lower. This does not mean conferences should accept low-quality work. The absolute number of accepted papers changes very little because the unaccepted paper pool grows so significantly under low acceptance conditions.
- Lower acceptance rates force reviewers to evaluate many more papers to reach similar acceptance numbers
- The unaccepted paper pool grows exponentially when rejection rates are high
- Slightly higher acceptance rates can reduce the resubmission burden without compromising quality
- Many papers rejected from top conferences might be suitable for lower-tier venues
- Physical conference constraints often dictate acceptance numbers more than quality considerations
The Real-World Impact on Conference Organization
Conference organizers face practical constraints that shape acceptance rates. Venue selection happens before the call for papers, determining how many presentations can physically fit into the schedule. A typical conference day divides into 30-minute presentation slots, leaving room for meals, posters, and networking. The number of possible presentations establishes the maximum acceptance number before any papers arrive. Acceptance rate then becomes a simple calculation of accepted papers divided by total submissions rather than a quality target.
Conference organizers do not start by saying let us have a 25 percent acceptance rate. The acceptance rate is dictated largely by the organizing done before the call for papers
The academic community continues to explore solutions to this systemic challenge. Federated conferences could distribute the review burden across multiple events. Virtual presentation options might reduce physical space constraints. Alternative review mechanisms beyond simple acceptance or rejection could help match papers to appropriate venues. However, author motivation remains a key factor, as researchers naturally aim for the highest visibility platforms for their work. The mathematics of queueing theory provides valuable insights, but human factors and academic incentives will ultimately shape the future of conference publishing.
