1,820 technical terms and definitions
database replication consistency, database replication, replication consistency
Database Replication Consistency Introduction & Motivation Database Replication Consistency addresses a central problem in cloud process control…
database sharding strategy, database sharding, sharding strategy
Database Sharding Strategy Introduction & Motivation Database Sharding Strategy addresses a central problem in cloud process control and shard-key-distribution-balance prediction…
Relational Databases, Transactions, Concurrency, and B+ Trees A database management system turns shared persistent storage into a dependable abstraction. Applications issue…
data modeling, relational tables, SQL, primary key, index, transaction, ACID
A database is the organized, persistent storage sitting behind the HTTP response from the previous topic, and this very article is a real row inside one. Data modeling is…
lakehouse, mlflow
Databricks is the unified data intelligence platform founded by the creators of Apache Spark that combines data engineering, data warehousing, and machine learning — pioneering…
architecture, deep, learning, processing
Dataflow is an execution model in which a computation is expressed as a graph of operations, and each operation runs as soon as its input data is available, rather than in a fixed…
computing, paradigm, architecture, execution
Dataflow Computing Paradigm is an execution model where computation is driven by data availability rather than program counter sequencing, enabling massive parallelism through…
dataflow accelerator architecture design, dataflow accelerator architecture, accelerator architecture design, dataflow accelerator, accelerator architecture, architecture design
Dataflow Accelerator Architecture Design Introduction & Motivation Dataflow Accelerator Architecture Design addresses a central problem in ml-hardware process control…
dataflow analysis in compilers, dataflow analysis compilers, dataflow analysis, analysis compilers
Dataflow Analysis in Compilers Introduction & Motivation Dataflow Analysis in Compilers addresses a central problem in compiler-optimization process control and analysis-precision…
dataflow programming, dataflow graph, stream processing, dataflow execution
Dataflow architecture definition and engineering boundary. executes an operation when its required data tokens are available rather than advancing primarily through a single…
spatial computing hardware, coarse grain reconfigurable, cgra dataflow, dataflow processor design
Dataflow Architecture Computing is the processor design paradigm where instructions execute as soon as their input operands are available (data-driven execution) rather than…
dataflow computing and architectures, dataflow computing architectures, dataflow computing, computing architectures
Dataflow Computing and Architectures Introduction & Motivation Dataflow Computing and Architectures addresses a central problem in dataflow-computing process control…
wave computing, spatial architecture computing, coarse grain reconfigurable array cgra, stream dataflow architecture
Dataflow Processor Architecture: Spatial Computing via Coarse-Grained Reconfigurable Arrays — compute elements directly mapped to hardware nodes with data-driven execution model…
corpus, training data
Training Data for LLMs Pretraining Datasets Large language models are pretrained on massive text corpora—often trillions of tokens from diverse sources. Common Pretraining Sources…
data quality
Dataset Bias refers to systematic errors or skews in training data that cause models to learn unintended, misleading patterns — the model captures the bias in the data rather than…
Dataset Cartography and Data Maps for Training Dynamics Introduction & Motivation Dataset Cartography and Data Maps for Training Dynamics addresses a central problem…
distributed training
Dataset sharding is the partitioning of training data into non-overlapping subsets assigned across distributed workers - it ensures balanced workload distribution, minimizes…
mlops
Dataset versioning is the practice of creating immutable, traceable dataset snapshots for every training and evaluation run - it ensures model results can be reproduced even when…
huggingface, loading
Hugging Face Datasets is a lightweight Python library for efficiently loading, processing, and sharing datasets for machine learning — using Apache Arrow as its in-memory backend…
dataset, documentation
Datasheets for Datasets is the standardized documentation framework for machine learning training datasets that captures motivation, composition, collection process…
packaging
Date code is the encoded manufacturing-time identifier printed or marked on packages to indicate production period for traceability - it supports quality control, inventory…
Date-Time Parsing and Normalization Introduction & Motivation Date-Time Parsing and Normalization addresses a central problem in {subject} assurance and {target} management: how…
evaluation
Date Understanding is the NLP task and benchmark category that evaluates a model's ability to reason about temporal expressions, calendar arithmetic, event ordering, and duration…
d2d variation, daily drift
Day-to-Day Variation (D2D) in semiconductor manufacturing refers to process parameter fluctuations between production days caused by environmental, equipment, or operational…
dbn, recommendation systems
DBN is dynamic Bayesian network click model that captures sequential examination and satisfaction behavior - It extends simpler click models with richer latent user-state…
dbr mirror layer thickness drift prediction, dbr mirror layer, mirror layer thickness, layer thickness drift, thickness drift prediction, dbr mirror, mirror layer
DBR Mirror Layer Thickness Drift Prediction with Machine Learning Introduction & Motivation DBR Mirror Layer Thickness Drift Prediction with Machine Learning addresses a central…
dbr mirror stack uniformity prediction machine learning, dbr mirror, stack uniformity prediction, dbr vcsel, dbr mirror stack uniformity prediction, dbr mirror stack
DBR Mirror Stack Uniformity Prediction with Machine Learning Introduction & Motivation DBR Mirror Stack Uniformity Prediction with Machine Learning addresses a central problem…
dbscan, manufacturing operations
DBSCAN is a density-based clustering algorithm that groups dense regions while labeling sparse points as noise - It is a core method in modern semiconductor predictive analytics…
dbscan clustering anomaly, dbscan clustering, clustering anomaly
DBSCAN Clustering Anomaly Introduction & Motivation DBSCAN Clustering Anomaly addresses a central problem in timeseries process control and density-based-clustering-method…
dbscan density based clustering arbitrary shapes, dbscan density clustering arbitrary shapes, dbscan density, clustering arbitrary shapes, dbscan gps gpu passed, dbscan density-based
DBSCAN: Density-Based Clustering & Arbitrary Shapes Introduction & Motivation DBSCAN groups points based on density—clusters are dense regions separated by sparse regions. No need…
dbscan density based clustering spatial analysis, dbscan density clustering spatial analysis, dbscan density, clustering spatial analysis, 2d dbscan knn nn passed, dbscan density-based
DBSCAN: Density-Based Clustering & Spatial Analysis Introduction & Motivation DBSCAN: density-based spatial clustering. No fixed K; finds clusters of arbitrary shape. Noise points…
transform, analytics
dbt (Data Build Tool) is the SQL-first transformation framework that brings software engineering best practices — version control, testing, documentation, and modular design…
data center hardware, data center, center hardware
Data Center Hardware Introduction & Motivation Data Center Hardware addresses a central problem in data-center process control and pue prediction: how to Predict pue from dc-hw…
dc, advanced test & probe
DC Parametric is direct-current electrical measurements used to verify static device behavior against limits - It validates leakage, threshold, drive, and other core electrical…
direct current sputtering, dc magnetron sputtering, dc sputter deposition, dc sputtering power, dc sputtering voltage, dc sputtering current, dc sputtering arcing, pulsed dc sputtering, reactive dc sputtering, dc plasma impedance, arc suppression
DC sputtering is the electrical operating regime in which a negative direct-current supply sustains a glow discharge at a conductive cathode target, converting a controlled…
testing
Design-for-test architectures, automatic test pattern generation, and structural fault modeling constitute the digital verification and manufacturing test disciplines engineered…
ddim, denoising diffusion implicit models, generative models
DDIM (Denoising Diffusion Implicit Models) is an accelerated sampling method for diffusion models that defines a family of non-Markovian diffusion processes sharing the same…
ddim, generative models
DDIM sampling is the non-Markov diffusion sampling method that enables deterministic or partially stochastic generation with fewer steps - it reuses DDPM-trained models while…
ddmesa 1956 step 1 choose collector resistivity and crystal orientation, starting silicon wafer resistivity selection
Select and Prepare the Starting Silicon Wafer: Choosing the Crystal That Will Carry a Field It Doesn't Yet Have 1. Why Silicon's Resistivity Has to Be Chosen Before Anything Else…
ddmesa 1956 step 2 wafer surface cleaning and polishing, wafer surface clean and polish
Surface Clean and Polish the Wafer: Removing Everything a Diffusion Furnace Would Otherwise Copy Into the Crystal 1. Why a Furnace Cannot Be Trusted to Ignore a Dirty Surface…
ddmesa 1956 step 3 boron predeposition for graded base, boron base predeposition
Base Predeposition: Laying Down the Boron That Will Become a Graded Base, Not Yet a Flat One 1. Why Predeposition Is Deliberately Separated From Drive-In This step introduces…
ddmesa 1956 step 4 drive in diffusion builds drift field, base drive in graded profile
Base Drive-In: Stretching a Fixed Dose Into the Gradient That Becomes a Built-In Field 1. Why Drive-In Is the Step That Actually Creates the Drift Field This step takes the fixed…
ddmesa 1956 step 5 measure the graded base doping gradient, verify base drift field profile
Verify the Base Drift-Field Profile: Measuring a Gradient Before Trusting It With an Emitter 1. Why a Field You Cannot Measure Is a Field You Cannot Rely On Before any emitter…
ddmesa 1956 step 6 second diffusion opposite polarity dopant, emitter predeposition phosphorus
Emitter Predeposition: A Second Dopant, Opposite Polarity, Placed Inside a Field That Is Already Waiting For It 1. Why the Emitter Must Be Shallower and More Heavily Doped Than…
ddmesa 1956 step 7 fix emitter junction depth and gradient, emitter drive in shallow junction
Emitter Drive-In: Fixing the Junction Depth Without Letting It Catch Up to the Base 1. Why This Drive-In Has the Opposite Goal From the Base's This step anneals the phosphorus…
ddmesa 1956 step 8 photoresist mask before mesa etch, mask active device area
Mask the Active Device Area: Deciding What the Next Step Is Allowed to Destroy 1. Why a Mask Has to Exist Before an Etch Can Be Trusted This step applies a protective dot — wax…
ddmesa 1956 step 9 etch through base and emitter junctions, mesa etch junction isolation
Mesa Etch: Cutting Through Two Junctions to Leave Each Device Standing Alone 1. Why the Etch Has to Go Deeper Than Either Junction, Not Just Between Them This step exposes…
ddmesa 1956 step 10 inspect exposed mesa sidewall edge, post etch sidewall inspection
Post-Etch Clean and Sidewall Inspection: Looking Directly at the Edge the Next Several Steps Must Work Around 1. Why the Etchant Itself Becomes a Contaminant the Moment It…
ddmesa 1956 step 11 protective coating over exposed junction, sidewall passivation leakage
Sidewall Passivation: Covering the One Place Where Both Junctions Touch Open Air 1. Why an Exposed Junction Edge Leaks More Than a Buried One Ever Would The mesa etch and…
ddmesa 1956 step 12 metal contact on graded base region, base ohmic contact metallization
Base Ohmic Contact Metallization: Attaching a Wire to a Region That Is Not Flat Electrically 1. Why a Contact to a Graded Region Needs More Care Than a Contact to a Uniform One…