Amos Korman
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View article: The 2025 motile active matter roadmap
The 2025 motile active matter roadmap Open
Activity and autonomous motion are fundamental aspects of many living and engineering systems. Here, the scale of biological agents covers a wide range, from nanomotors, cytoskeleton, and cells, to insects, fish, birds, and people. Inspire…
View article: Comparing cooperative geometric puzzle solving in ants versus humans
Comparing cooperative geometric puzzle solving in ants versus humans Open
Biological ensembles use collective intelligence to tackle challenges together, but suboptimal coordination can undermine the effectiveness of group cognition. Testing whether collective cognition exceeds that of the individual is often im…
View article: The Query Complexity of Searching Trees with Permanently Noisy Advice
The Query Complexity of Searching Trees with Permanently Noisy Advice Open
We consider a search problem on trees aiming to find a treasure that an adversary places at one of the nodes. The algorithm can query nodes and extract directional information from them. That is, each node holds a pointer, termed advice , …
View article: The 2024 Motile Active Matter Roadmap
The 2024 Motile Active Matter Roadmap Open
Activity and autonomous motion are fundamental aspects of many living and engineering systems. Here, the scale of biological agents covers a wide range, from nanomotors, cytoskeleton, and cells, to insects, fish, birds, and people. Inspire…
View article: Fast and Robust Information Spreading in the Noisy PULL Model
Fast and Robust Information Spreading in the Noisy PULL Model Open
Understanding how information can efficiently spread in distributed systems under noisy communications is a fundamental question in both biological research and artificial system design. When agents are able to control whom they interact w…
View article: Abundant resources can trigger reduced consumption: Unveiling the paradox of excessive scrounging
Abundant resources can trigger reduced consumption: Unveiling the paradox of excessive scrounging Open
In ecological contexts, it is conventionally expected that increased food availability would boost consumption, particularly when animals prioritize maximizing their food intake. This paper challenges this conventional wisdom by conducting…
View article: Early adapting to trends: self-stabilizing information spread using passive communication
Early adapting to trends: self-stabilizing information spread using passive communication Open
How to efficiently and reliably spread information in a system is one of the most fundamental problems in distributed computing. Recently, inspired by biological scenarios, several works focused on identifying the minimal communication res…
View article: On the Role of Memory in Robust Opinion Dynamics
On the Role of Memory in Robust Opinion Dynamics Open
We investigate opinion dynamics in a fully-connected system, consisting of n agents, where one of the opinions, called correct, represents a piece of information to disseminate. One source agent initially holds the correct opinion and rema…
View article: Enhanced Food Availability can Deteriorate Fitness through Excessive Scrounging
Enhanced Food Availability can Deteriorate Fitness through Excessive Scrounging Open
In group foraging situations, the conventional expectation is that increased food availability would enhance consumption, especially when animals prioritize maximizing their food intake. This paper challenges this conventional wisdom by co…
View article: On the Role of Memory in Robust Opinion Dynamics
On the Role of Memory in Robust Opinion Dynamics Open
We investigate opinion dynamics in a fully-connected system, consisting of $n$ identical and anonymous agents, where one of the opinions (which is called correct) represents a piece of information to disseminate. In more detail, one source…
View article: Distributed Alignment Processes With Samples of Group Average
Distributed Alignment Processes With Samples of Group Average Open
Reaching agreement despite noise in communication is a fundamental problem in multi-agent systems. Here we study this problem under an idealized model, where it is assumed that agents can sense the general tendency in the system. More spec…
View article: Early Adapting to Trends: Self-Stabilizing Information Spread using Passive Communication
Early Adapting to Trends: Self-Stabilizing Information Spread using Passive Communication Open
How to efficiently and reliably spread information in a system is one of the most fundamental problems in distributed computing. Recently, inspired by biological scenarios, several works focused on identifying the minimal communication res…
View article: Sequential Decision-Making in Ants and Implications to the Evidence Accumulation Decision Model
Sequential Decision-Making in Ants and Implications to the Evidence Accumulation Decision Model Open
Cooperative transport of large food loads by Paratrechina longicornis ants demands repeated decision-making. Inspired by the Evidence Accumulation (EA) model classically used to describe decision-making in the brain, we conducted a binary …
View article: Navigating in Trees with Permanently Noisy Advice
Navigating in Trees with Permanently Noisy Advice Open
We consider a search problem on trees in which an agent starts at the root of a tree and aims to locate an adversarially placed treasure, by moving along the edges, while relying on local, partial information. Specifically, each node in th…
View article: Intermittent inverse-square Lévy walks are optimal for finding targets of all sizes
Intermittent inverse-square Lévy walks are optimal for finding targets of all sizes Open
Lévy walk patterns, commonly used by animals, are proved to be an optimal strategy for finding targets of unknown size.
View article: Stochastic Alignment Processes
Stochastic Alignment Processes Open
The tendency to align to others is inherent to social behavior, including in animal groups, and flocking in particular. Here we introduce the Stochastic Alignment Problem, aiming to study basic algorithmic aspects that govern alignment pro…
View article: Exploitation of Multiple Replenishing Resources with Uncertainty
Exploitation of Multiple Replenishing Resources with Uncertainty Open
We consider an optimization problem in which a (single) bat aims to exploit the nectar in a set of $n$ cacti with the objective of maximizing the expected total amount of nectar it drinks. Each cactus $i \in [n]$ is characterized by a para…
View article: Ant collective cognition allows for efficient navigation through disordered environments
Ant collective cognition allows for efficient navigation through disordered environments Open
The cognitive abilities of biological organisms only make sense in the context of their environment. Here, we study longhorn crazy ant collective navigation skills within the context of a semi-natural, randomized environment. Mapping this …
View article: Author response: Ant collective cognition allows for efficient navigation through disordered environments
Author response: Ant collective cognition allows for efficient navigation through disordered environments Open
Article Figures and data Abstract Introduction Results Discussion Materials and methods Appendix 1 Appendix 2 Appendix 3 Data availability References Decision letter Author response Article and author information Metrics Abstract The cogni…
View article: The Search Efficiency of Intermittent Lévy walks Optimally Scales with Target Size.
The Search Efficiency of Intermittent Lévy walks Optimally Scales with Target Size. Open
Levy walks are random walks processes whose step length follows a long-tailed power law distribution. Due to their abundance as movement patterns of biological organisms, significant theoretical efforts have been devoted to identify the fo…
View article: Tight Bounds for the Cover Times of Random Walks with Heterogeneous Step Lengths
Tight Bounds for the Cover Times of Random Walks with Heterogeneous Step Lengths Open
Search patterns of randomly oriented steps of different lengths have been observed on all scales of the biological world, ranging from the microscopic to the ecological, including in protein motors, bacteria, T-cells, honeybees, marine pre…
View article: Tight Bounds for the Cover Times of Random Walks with Heterogeneous Step\n Lengths
Tight Bounds for the Cover Times of Random Walks with Heterogeneous Step\n Lengths Open
Search patterns of randomly oriented steps of different lengths have been\nobserved on all scales of the biological world, ranging from the microscopic to\nthe ecological, including in protein motors, bacteria, T-cells, honeybees,\nmarine …
View article: Multi-Round Cooperative Search Games with Multiple Players
Multi-Round Cooperative Search Games with Multiple Players Open
Assume that a treasure is placed in one of M boxes according to a known distribution and that k searchers are searching for it in parallel during T rounds. We study the question of how to incentivize selfish players so that group performan…
View article: Multi-Round Cooperative Search Games with Multiple Players
Multi-Round Cooperative Search Games with Multiple Players Open
Assume that a treasure is placed in one of $M$ boxes according to a known distribution and that $k$ searchers are searching for it in parallel during $T$ rounds. We study the question of how to incentivize selfish players so that the succe…
View article: Cooperative Search Games: Symmetric Equilibria, Robustness, and Price of Anarchy.
Cooperative Search Games: Symmetric Equilibria, Robustness, and Price of Anarchy. Open
Assume that a treasure is placed in one of $M$ boxes according to a known distribution and that $k$ searchers are searching for it in parallel during $T$ rounds. We study the question of how to incentivize selfish players so that the succe…