Identifying properties of UML state machine diagrams that affect data and control dependence

2011 ◽  
Author(s):  
HyeonJeong Kim ◽  
Vidroha Debroy ◽  
DooHwan Bae
Keyword(s):  
State Machine ◽  
Control Dependence ◽  
And Control

scholarly journals USE: An integrative suite for temporally-precise psychophysical experiments in virtual environments for human, nonhuman, and artificially intelligent agents

2018 ◽  
Author(s):  
Marcus. R. Watson ◽  
Voloh Benjamin ◽  
Thomas Christopher ◽  
Hasan Asif ◽  
Womelsdorf Thilo
Keyword(s):  
Video Game ◽  
Data Streams ◽  
Intelligent Agents ◽  
Time Synchronization ◽  
Behavioral Neuroscience ◽  
State Machine ◽  
List Type ◽  
Game Engine ◽  
Game Engines ◽  
And Control

1Abstract1.1BackgroundThere is a growing interest in complex, active, and immersive behavioral neuroscience tasks. However, the development and control of such tasks present unique challenges.1.2New MethodThe Unified Suite for Experiments (USE) is an integrated set of hardware and software tools for the design and control of behavioral neuroscience experiments. The software, developed using the Unity video game engine, supports both active tasks in immersive 3D environments and static 2D tasks used in more traditional visual experiments. The custom USE SyncBox hardware, based around an Arduino Mega2560 board, integrates and synchronizes multiple data streams from different pieces of experimental hardware. The suite addresses three key issues with developing cognitive neuroscience experiments in Unity: tight experimental control, accurate sub-ms timing, and accurate gaze target identification.1.3ResultsUSE is a flexible framework to realize experiments, enabling (i) nested control over complex tasks, (ii) flexible use of 3D or 2D scenes and objects, (iii) touchscreen-, button-, joystick- and gaze-based interaction, and (v) complete offline reconstruction of experiments for post-processing and temporal alignment of data streams.1.4Comparison with Existing MethodsMost existing experiment-creation tools are not designed to support the development of video-game-like tasks. Those that do use older or less popular video game engines as their base, and are not as feature-rich or enable as precise control over timing as USE.1.5ConclusionsUSE provides an integrated, open source framework for a wide variety of active behavioral neuroscience experiments using human and nonhuman participants, and artificially-intelligent agents.2GlossaryActive task: Experimental tasks which involve some combination of realistic, usually moving, stimuli, continuous opportunities for action, ecologically valid tasks, complex behaviours, etc. Here, they are contrasted with static tasks (see below)Arduino: A multi-purpose generic micro-processor, here used to control inter-device communication and time synchronization.Raycast: A game-engine method that sends a vector between two points in a virtual three-dimensional environment, and returns the first object in that environment it hits. Often used to determine if a character in a game can see or shoot another character.State Machine (also Finite State Machine): A way of conceptualizing and implementing control in software, such that at any one moment the software is in one, and only one, state. In hierarchical state machines, as used in the present software suite, these can be organized into different levels, such that each level can only be in one state, but a state can pass control to a lower level.Static task: Experimental tasks like those traditionally used in the cognitive neurosciences. Simple, usually stationary, stimuli, limited opportunities for action, simple behaviours, etc. Here, they are contrasted with active tasks (see above).Unity: One of the most popular video game engines. Freely available.Video game engine: A software development kit designed to handle many of the common issues involved in creating video games, such as interfacing with controllers, simulating physical collisions and lighting, etc.

Command Communication: The Politics of Editorial Formulation in the People's Daily

1994 ◽  
Vol 137 ◽  
pp. 194-211 ◽  
Author(s):  
Guoguang Wu
Keyword(s):  
Mass Media ◽  
News Media ◽  
State Machine ◽  
Communist System ◽  
People’S Daily ◽  
People's Daily ◽  
And Control ◽  
Crucial Part ◽  
Party State

Most studies of communication in China or in other Communist states focus on the functions of mass media: as propaganda, organization, mobilization and control. They examine the transmission of messages from state to society and see the news media under the Communist system as a crucial part of the party-state machine. These studies usually emphasize two features. First, mass media and the party-state are seen as identical in essence, as implied in the concept of “propaganda state.” Secondly, they focus on how this “propaganda state” restructures people's opinions and transforms society.

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