Results 21 to 30 of about 746,689 (293)

The Effects of Sequence and Delay on Crowd Work [PDF]

open access: yesProceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems, 2015
A common approach in crowdsourcing is to break large tasks into small microtasks so that they can be parallelized across many crowd workers and so that redundant work can be more easily compared for quality control. In practice, this can result in the microtasks being presented out of their natural order and often introduces delays between individual ...
Walter S. Lasecki   +3 more
openaire   +1 more source

Coordinating Advanced Crowd Work: Extending Citizen Science

open access: yesCitizen Science: Theory and Practice, 2019
This paper presents a case study of an online citizen science project that attempted to involve volunteers in tasks with multiple dependencies including analyzing bulk data as well as interpreting data and writing a paper for publication. Tasks with more
Kevin Crowston   +2 more
doaj   +1 more source

Advances in Convolution Neural Networks Based Crowd Counting and Density Estimation

open access: yesBig Data and Cognitive Computing, 2021
Automatically estimating the number of people in unconstrained scenes is a crucial yet challenging task in different real-world applications, including video surveillance, public safety, urban planning, and traffic monitoring.
Rafik Gouiaa   +2 more
doaj   +1 more source

Non-local first-order modelling of crowd dynamics: a multidimensional framework with applications [PDF]

open access: yes, 2010
In this work a physical modelling framework is presented, describing the intelligent, non-local, and anisotropic behaviour of pedestrians. Its phenomenological basics and constitutive elements are detailed, and a qualitative analysis is provided.
Andrea Tosin   +37 more
core   +1 more source

The Crowd Work Accessibility Problem

open access: yesProceedings of the 14th International Web for All Conference, 2017
Crowd work is an increasingly prevalent and important kind of work. Because of its flexible nature, crowd work may offer benefits for people with disabilities. Unfortunately, people with disabilities currently lack access to much of this work because the tasks that are posted are often inaccessible.
Saiganesh Swaminathan   +2 more
openaire   +3 more sources

The walking behaviour of pedestrian social groups and its impact on crowd dynamics. [PDF]

open access: yesPLoS ONE, 2010
Human crowd motion is mainly driven by self-organized processes based on local interactions among pedestrians. While most studies of crowd behaviour consider only interactions among isolated individuals, it turns out that up to 70% of people in a crowd ...
Mehdi Moussaïd   +4 more
doaj   +1 more source

Detection of Salient Crowd Motion Based on Repulsive Force Network and Direction Entropy

open access: yesEntropy, 2019
This paper proposes a method for salient crowd motion detection based on direction entropy and a repulsive force network. This work focuses on how to effectively detect salient regions in crowd movement through calculating the crowd vector field and ...
Xuguang Zhang   +5 more
doaj   +1 more source

Application of improved transformer based on weakly supervised in crowd localization and crowd counting

open access: yesScientific Reports, 2023
To the problem of the complex pre-processing and post-processing to obtain head-position existing in the current crowd localization method using pseudo boundary box and pre-designed positioning map, this work proposes an end-to-end crowd localization ...
Hui Gao   +3 more
doaj   +1 more source

Crowdsourcing approaches for knowledge organization systems: Crowd collaboration or crowd work? [PDF]

open access: yesProceedings of the Association for Information Science and Technology, 2016
ABSTRACT Development of Internet technologies has empowered ordinary users to create, contribute, share and connect with other members of the community. As users learn to exploit the potential of networked communications, they participate in a process, which facilitates a shift from individual to collective contributions and ...
Maayan Zhitomirsky-Geffet   +5 more
openaire   +2 more sources

Automated Decision Technique for the Crowd Estimation Method Using Thermal Videos

open access: yesApplied Computational Intelligence and Soft Computing, 2022
Counting and detecting the pedestrians is an important and critical aspect for several applications such as estimation of crowd density, organization of events, individual’s flow control, and surveillance systems to prevent the difficulties and ...
Nermin K. Negied   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy