Abbreviation	Definition	Notes	Topic
DMP	Digital Matte Painting		Compositing
AOV	Arbitrary Output Variable	Synonymous with 'Render Passes'	CompositingHoudini
SOP	Surface Operator		Houdini
SHOP	Shader Operator		Houdini
CHOP	Channel Operator		Houdini
COP	Compositing Operator		Houdini
DOP	Dynamics Operator		Houdini
POP	Particles Operator		Houdini
ROP	Rendering Operator		Houdini
VOP	VEX Operator		Houdini
EDA	Exploratory Data Analysis		ML
NLP	Natural Language Processing		ML
TF	Term Frequency		ML
IDF	Inverse Document Frequency		ML
NN	Neural Network		ML
RELU	Rectified Linear Unit	Activation function	ML
MSE	Mean Squared Error	Loss function metric	ML
MAE	Mean Absolute Error	Loss function metric	ML
RMSE	Root Mean Squared Error	Loss function metric	ML
kwargs	Key Word Argument	Used in Python operations	Python
NOP	No Operation	Used in Python by way of pass; statement that does nothing but is still executed	Python
RDD	Resilient Distributed Dataset	Spark data structure	ML
HDFS	Hadoop Distributed File System		ML
DAG	Directed Acyclic Graph	Task manager for use with RDDs	ML
EC2	Elastic Compute Cloud	Resizable compute capacity in AWS	ML
AMI	Amazon Machine Image	Used by Amazon Web Services, such as EC2	ML
SGD	Stochastic Gradient Descent	Optimization strategy used in defining batch sizes for machine learing.	ML
IID	Independent & Identically Distributed	Statistics term	ML
VQA	Visual Question Answering	Semantic task to answer NL questions based on an image.	ML
LSTM	Long Short Term Memory	RNN cell architecture for memory management	ML
RNN	Recurrent Neural Network		ML
CNN	Convolutional Neural Network		ML
ELU	Exponential Linear Unit	Activation function	ML
CBOW	Continuous Bag of Words	Method in NLP for learning representations of words.	ML
HOM	Houdini Object Model	Houdini's API for querying information and controlling Houdini operations with Python	Houdini
NCE	Noise Contrastive Estimation	Nonlinear logistic regression to discriminate between observed data and artificially generated noise.	ML
WSGI	Web Server Gateway Interface	The Python Flask framework is an example of this.	Python
PCA	Principal Component Analysis		ML
LIVRPS	Local, Inherits, Variant Sets, References, Payload, Specializes	Strength ordering for opinions and namespace composition in USD	USDHoudini
USD	Universal Scene Description		USDHoudini
OCIO	Open Color IO	Color management solution	Compositing
CLI	Command Line Interface		Python
CRD	Custom Resource Definition	Namespaced object utilized in Kubernetes.	ML
BYOD	Bring Your Own Device	Used with regards to AR/VR/MR devices and environment deployments.	MR
MIL	Multiple Instance Learning	Tracking API for use with OpenCV.	ML
ROI	Region of Interest	Used to focus attention on a specific area of an image in computer vision.	ML
MDM	Mobile Device Management		MR
EMM	Enterprise Mobility Management		MR
DP	Director of Photography		Film
DOP	Disconnected On Purpose	Commenting clarification in visual scripting to log disconnected streams.	UE
UMG	Unreal Motion Graphics	UMG UI Designer is a visual UI authoring tool.	UE
DDC	Derived Data Cache	Asset storage protocol for UE and target platforms.	UE