35 citations · 140 across the 15 of their papers we have counts for
15 papers
Flickering candle flames and their collective behavior
Attila Gergely, Bulcsú Sándor, Csaba Paizs +2
Oscillation and collective behavior of diffusion flames is a fascinating phenomena. Considering candle bundles with different sizes in variable oxygen concentration, the flickering…
Charting closed-loop collective cultural decisions: From book best sellers and music downloads to Twitter hashtags and Reddit comments
Lukas Schneider, Johannes Scholten, Bulcsu Sandor +1
Charts are used to measure relative success for a large variety of cultural items. Traditional music charts have been shown to follow self-organizing principles with regard to the…
When the goal is to generate a series of activities: A self-organized simulated robot arm
Tim Koglin, Bulcsú Sándor, Claudius Gros
Behavior is characterized by sequences of goal-oriented conducts, such as food uptake, socializing and resting. Classically, one would define for each task a corresponding satisfac…
Embodied robots driven by self-organized environmental feedback
Frederike Kubandt, Michael Nowak, Tim Koglin +2
Which kind of complex behavior may arise from self-organizing principles? We investigate this question for the case of snake-like robots composed of passively coupled segments, wit…
Kick control: using the attracting states arising within the sensorimotor loop of self-organized robots as motor primitives
Bulcsú Sándor, Michael Nowak, Tim Koglin +2
Self-organized robots may develop attracting states within the sensorimotor loop, that is within the phase space of neural activity, body, and environmental variables. Fixpoints, l…
Complex activity patterns generated by short-term synaptic plasticity
Bulcsú Sándor, Claudius Gros
Short-term synaptic plasticity (STSP) affects the efficiency of synaptic transmission for persistent presynaptic activities. We consider attractor neural networks, for which the at…
Time-scale effects on the gain-loss asymmetry in stock indices
Bulcsú Sándor, Ingve Simonsen, Bálint Zsolt Nagy +1
The gain-loss asymmetry, observed in the inverse statistics of stock indices is present for logarithmic return levels that are over , and it is the result of the non-Pearson t…
Closed-loop robots driven by short-term synaptic plasticity: Emergent explorative vs. limit-cycle locomotion
Laura Martin, Bulcsú Sándor, Claudius Gros
We examine the hypothesis, that short-term synaptic plasticity (STSP) may generate self-organized motor patterns. We simulated sphere-shaped autonomous robots, within the LPZRobots…
How to test for partially predictable chaos
Hendrik Wernecke, Bulcsú Sándor, Claudius Gros
For a chaotic system pairs of initially close-by trajectories become eventually fully uncorrelated on the attracting set. This process of decorrelation may split into an initial ex…
The sensorimotor loop as a dynamical system: How regular motion primitives may emerge from self-organized limit cycles
Bulcsú Sándor, Tim Jahn, Laura Martin +1
We investigate the sensorimotor loop of simple robots simulated within the LPZRobots environment from the point of view of dynamical systems theory. For a robot with a cylindrical…
A versatile class of prototype dynamical systems for complex bifurcation cascades of limit cycles
Bulcsú Sándor, Claudius Gros
We introduce a versatile class of prototype dynamical systems for the study of complex bifurcation cascades of limit cycles, including bifurcations breaking spontaneously a symmetr…
A spring-block analogy for the dynamics of stock indexes
Bulcsu Sandor, Zoltan Neda
A spring-block chain placed on a running conveyor belt is considered for modeling stylized facts observed in the dynamics of stock indexes. Individual stocks are modeled by the blo…
Chaos on the conveyor belt
Bulcsú Sándor, Ferenc Járai-Szabó, Tamás Tél +1
The dynamics of a spring-block train placed on a moving conveyor belt is investigated both by simple experiments and computer simulations. The first block is connected by spring to…
Rms-flux relation in the optical fast variability data of BL Lacertae object S5 0716+714
Gabriela-Raluca Mocanu, Bulcsu Sandor
The possibility that BL Lac S5 0716+714 exhibits a linear root mean square (rms)-flux relation in its IntraDay Variability (IDV) is analysed. The results may be used as an argument…
Spring-block model for a single-lane highway traffic
Ferenc Jarai-Szabo, Bulcsu Sandor, Zoltan Neda
A simple one-dimensional spring-block chain with asymmetric interactions is considered to model an idealized single-lane highway traffic. The main elements of the system are blocks…