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Information provided by direct observation
The term ground truth appeared in remote sensing literature as early as 1972, when NASA described it as essential "data about ... materials on the earth's
Ground_truth
2006 American film
The Ground Truth (also known as The Ground Truth: After the Killing Ends) is a 2006 documentary film about veterans of the Iraq War. It was directed and
The_Ground_Truth
Object detection system
cell, if it contains a ground truth bounding box, then only the predicted bounding boxes with the highest IoU with the ground truth bounding boxes is used
You_Only_Look_Once
Procedure for recovering a blurred image
the estimated ground truths while using the RL algorithm, where the hat symbol is used to distinguish ground truth from estimator of the ground truth
Richardson–Lucy_deconvolution
Computer technology related to computer vision and image processing
detected the traffic sign (a true positive) at 0.5 threshold if it has drawn a bounding box whose IoU with the ground truth is above 0.5. Otherwise, the bounding
Object_detection
Economic model of personal preferences
ground-truth vector of utilities; each agent draws a utility for each alternative, based on a probability distribution whose mean value is the ground-truth
Random_utility_model
State of prolonged public dispute or debate
belief of the community's unhindered access to ground truth. Such confidence in the group to find the ground truth is explicable through the success of
Controversy
Algorithm for training neural networks
step, thus forcing the RNN to stay close to the ground-truth sequence. The term "teacher forcing" can be motivated by comparing the RNN to a human student
Teacher_forcing
Metric used to assess image quality
diffusion model. The FID compares the distribution of generated images with the distribution of a set of real images (a "ground truth" set). Rather than
Fréchet_inception_distance
Conformity to reality
Truth is conformity to reality or fact. It contrasts with falsity or misrepresentation that fails to align with the world. Truth is typically treated as
Truth
Ground Truth Elements (PAGE) is an XML standard for encoding digitised documents. Comparable to Analyzed Layout and Text Object (ALTO), it allows the
Page Analysis and Ground Truth Elements
Page_Analysis_and_Ground_Truth_Elements
Grouping a set of objects by similarity
the number of pairs of points that are clustered together in the predicted partition and in the ground truth partition, F P {\displaystyle FP} is the
Cluster_analysis
Set of learning techniques in machine learning
includes input-label pairs where the input is given to the model, and it must produce the ground truth label as the output. This can be leveraged to generate
Representation_learning
{\hat {b}}_{j}} denote the ground truth and predicted bounding boxes, respectively, c i {\displaystyle c_{i}} is the ground truth category, and p ^ j (
Detection_Transformer
Supervised machine learning techniques
which the predicted value is compared to the ground truth, and this is used to adjust the model parameters. Due to the complexity of the model and the interrelations
Structured_prediction
American politician (born 1957)
book, The Ground Truth: The Untold Story of America Under Attack On 9/11, was released days before the eighth anniversary of the 9/11 attacks. In "The Ground
John_Farmer_Jr.
Collective perception of a group of people
each participant access to the ground truth ordering but with varying degrees of stochastic noise, leading to variance in the final ordering given by different
Wisdom_of_the_crowd
Tornado research experiment
lead time, while the internal tornado near-surface sampling provided essential ground truth data for structural engineering analysis of the interaction of
TWISTEX
Clustering evaluation metric
where the assessment of the clustering quality is based solely on the dataset and the clustering results, and not on external, ground-truth labels.
Calinski–Harabasz_index
Pattern of motion in a visual scene due to relative motion of the observer
ground truth sequences. Middlebury Optical flow evaluation and ground truth sequences. mrf-registration.net - Optical flow estimation through MRF The
Optical_flow
2017 nonfiction book by Douglas Preston
archaeological sites under the rainforest cover, Preston accompanied a joint Honduran-American expedition to do ground truthing of the lidar results. They were
The Lost City of the Monkey God
The_Lost_City_of_the_Monkey_God
Topics referred to by the same term
marine accident Ground (disambiguation) Ground truth Grind (disambiguation) This disambiguation page lists articles associated with the title Grounding
Grounding
British wildlife artists
response to the natural world from first-hand experience, from ‘ground-truth’. In this way the bush has become our studio." Collaborative art is an art form
Olly_and_Suzi
3D visualization of nerve tracts via diffusion MRI
the ground truth bundles, but it still contains a substantial amount of invalid results. Tractography is performed using data from diffusion MRI. The
Tractography
Centre analysing earthquake seismic data
often in conjunction with on-site studies ("ground truth"). These events have seen selected to better "see" the Earth's structure, and to provide references
International Seismological Centre
International_Seismological_Centre
American activist and filmmaker
has close ties to the Chinese government. Stripped and Teased: Tales from Las Vegas Women (1999) (Producer) The Ground Truth: After the Killing Ends (2006)
Jodie_Evans
Overview of episodes
The Dumping Ground is a British children's drama series that focuses on the lives and experiences of young people and their care workers in care, broadcast
List of The Dumping Ground episodes
List_of_The_Dumping_Ground_episodes
Computer graphics shading and rendering technique
techniques such as horizon-based ambient occlusion including HBAO and ground-truth ambient occlusion (GTAO) as a faster approximation of true ambient occlusion
Ambient_occlusion
Diagnostic test or benchmark
standard". The term ground truth refers to the underlying absolute state of information; the gold standard strives to represent the ground truth as closely as
Gold_standard_(test)
(2005) Why We Fight (2005) Baghdad ER (2006) The Corporal's Boots (2006) The Ground Truth (2006) Iraq for Sale: The War Profiteers (2006) Iraq in Fragments
List of Iraq War documentaries
List_of_Iraq_War_documentaries
Image algorithm
of a set of real images ("ground truth"). Let there be two spaces, the space of images Ω X {\displaystyle \Omega _{X}} and the space of labels Ω Y {\displaystyle
Inception_score
9/11 hijacked passenger flight
11". The Washington Post. Archived from the original on February 13, 2015. Retrieved February 13, 2015. Farmer, John (2009). The Ground Truth: The Untold
United_Airlines_Flight_93
German-American entrepreneur (born 1967)
Google Glass (2012), a wearable computing platform; Project Ground Truth, which contributed to the development and refinement of Google Maps data systems;
Sebastian_Thrun
Automated recognition of patterns and regularities in data
{\mathcal {X}}} . In practice, neither the distribution of X {\displaystyle {\mathcal {X}}} nor the ground truth function g : X → Y {\displaystyle g:{\mathcal
Pattern_recognition
British television series
Lockerbie: A Search for Truth is a British television drama in five-parts directed by Otto Bathurst and Jim Loach, based on the 2021 book The Lockerbie Bombing:
Lockerbie:_A_Search_for_Truth
Machine learning technique
y} is the ground truth, and F ( x ) {\displaystyle F(x)} is the predicted data. This error function is used to make incremental adjustments to the model's
Predictive_learning
Organisation that records, conserves and restores orchards
Action Fund. The project undertakes ground truth surveys to determine the reliability and accuracy of national records, age and condition of the orchards
Wiltshire Traditional Orchards Project
Wiltshire_Traditional_Orchards_Project
2002–2004 U.S. commission to investigate the September 11 attacks
Post-Dispatch. Archived from the original on December 17, 2016. Retrieved September 12, 2009. Farmer, John (2009). The Ground Truth: The Untold Story of America
9/11_Commission
Former Royal Marines officer
promoted to full colonel, the youngest since the Second World War. Lee's chapter in the 2024 Bloomsbury book, Ground Truth, describes the difference in approach
Oliver Lee (Royal Marines officer)
Oliver_Lee_(Royal_Marines_officer)
Logic concept
of truth, a truth predicate is a fundamental concept based on the sentences of a formal language as interpreted logically. That is, it formalizes the concept
Truth_predicate
Language model benchmark
questions in the benchmark, which revealed that it contained a very significant amount of ground-truth errors. For example, 57% of questions in the "Virology"
MMLU
Ukrainian digital newspaper
articles with a paywall. The GroundTruth Project described the New Voice of Ukraine as a reliable source of information on the Russian invasion of Ukraine
The_New_Voice_of_Ukraine
Film festival in Massachusetts, US
notable films as The Last Kiss, A Guide to Recognizing Your Saints, Renaissance, Deliver Us From Evil, Jesus Camp, The Ground Truth, The US vs. John Lennon
Boston_Film_Festival
Angular measurements, typically for latitude and longitude
used. The [dLL] format can be used within publications to specify points or features of interest and within remote sensing to identify ground truth locations
Decimal_degrees
Measure of similarity between two data clusterings
output with a reference clustering, such as known class labels or a ground-truth partition. Given a set of n {\displaystyle n} elements S = { o 1 , …
Rand_index
Signal-processing paradigm that trades precision for volume of measurements
measurements, these inequalities confine the solution to a small polyhedral region around the ground truth, making formerly essential constraints unnecessary
Sample_abundance
Generating high-resolution video frames from given low-resolution ones
The resolution of ground-truth frames is 1920×1080. The tested scale factor is 4. 17 models were tested. 5 video codecs were used to compress ground-truth
Video_super-resolution
American actress (born 1956)
(2012) Vivian Brentson The Secret Circle (2012) Kate Meade Ground Truth (2006) Karen Dolan The Cutting Edge 2: Going for the Gold (2006) – Kate Mosley-Dorsey
Stepfanie_Kramer
Algorithm for extracting wisdom from the crowd
the alternatives to recover the ground-truth ranking with complete certainty, as discussed in the Nature article. However, the algorithm can be extended
Surprisingly_popular
Theory of truth in the philosophy of language
theory of truth is a theory of truth in the philosophy of language which holds that truth is a property of sentences. The semantic conception of truth, which
Semantic_theory_of_truth
Once-antagonistic term for the study of mental perception and thought processes
the ground truth). To attain a scientific understanding of consciousness, we cognitive neuroscientists "just" have to determine the other half of the
Mentalism_(psychology)
Statement that is true regardless of the truth or falsity of its constituent propositions
Logical truth is one of the most fundamental concepts in logic. Broadly speaking, a logical truth is a statement which is true regardless of the truth or falsity
Logical_truth
Weather warning indicating imminent danger of tornadoes
spotters or the public, but also law enforcement or local emergency management. When radar is unavailable or insufficient, such ground truth is crucial
Tornado_warning
Process of recording the movement of objects or people
the "ground truth" baseline in research and development. Results derived from other sensors and algorithms can then be compared to the ground truth data
Motion_capture
American weather information service
acquired WeatherBug from Earth Networks. In June 2017, xAd rebranded as GroundTruth to reflect a change in company focus from advertising to media and data
WeatherBug
Open-source software
data, and then apply these models to their datasets. The results are compared against the ground truth and can be refined. This process is also applied to
Webknossos
Journalist and author
and author who helped found The GroundTruth Project and serves as its editor-in-chief. He has held various positions at the Boston Globe including European
Charles_Sennott
Sect of Black Hebrews
The Commandment Keepers Ethiopian Hebrew Congregation of the Living God Pillar & Ground of Truth, Inc. are a group of Black Hebrews, who believe that people
Commandment_Keepers
Approach in data analysis
Detection with ground truth. KMASH Data Repository at Research Data Australia having more than 12,000 anomaly detection datasets with ground truth. Change detection
Anomaly_detection
Advocacy group
Families for Peace Vietnam Veterans Against the War The Ground Truth Coffee Strong, a GI coffeehouse Under the Hood Café, a GI coffeehouse Diplomats and
About Face: Veterans Against the War
About_Face:_Veterans_Against_the_War
Geoglyphs in the Nazca Desert, Peru
the Nazca Lines in Peru. The field survey took place between September 2022 and February 2023 and was conducted on foot for ground truthing under the
Nazca_lines
Online pharmacy in Texas
2024. Official website Mark Cuban: A Master Disrupter for American Healthcare. Interview with Eric Topol Ground Truth podcast, 37 min, December 2024
Cost_Plus_Drugs
OCR software
(ground truth). The new models created in this way can be shared with others and can therefore be easily reused. eScriptorium is built on top of the free
EScriptorium
Reinforcement learning method
model's (intelligent agent's) parameters based on the difference between its output results and the ground truth. These models stand out as they depend on environmental
Error-driven_learning
Value indicating the relation of a proposition to truth
logic and mathematics, a truth value, sometimes called a logical value, is a value indicating the relation of a proposition to truth, which in classical logic
Truth_value
including Phenomenology, Science, and Geography: Space and the Human Sciences, Ground Truth: The Social Implications of Geographical Information Systems
John_Pickles
Black Hebrew Israelite leader
where he established the Church of God in 1915. Tenets of his group, known as the Church of the Living God, the Pillar Ground of Truth for All Nations, were
Frank_Cherry
Analysis of firearms and bullets for presentation as legal evidence
Kotsoglou included: a paradox in which examiners' results agreed with ground truth but would be considered "error" via Dror and Scurich's proposals. Biederman
Forensic_firearm_examination
American journalist and writer
well". The Ground Truth Project. Retrieved 28 March 2022. New book explores the Bidens' rise to power and influence, retrieved 2022-04-05 "The Biden family's
Ben_Schreckinger
reporting, which in turn provides ground truth to public servants engaged in the protection of life and property. The network is a combination of locally
Spotter_Network
Initial known conditions used for comparison with later data
Check on the accuracy of measurement devices Ground truth – Information provided by direct observation Patient zero – First documented patient in the population
Baseline_(science)
American alt-tech social media platform
Truth Social is an American alt-tech social media platform owned by Trump Media & Technology Group (TMTG), an American company majority-owned by US president
Truth_Social
Measures of observational error
a set of ground truth relevant results selected by humans. Recall is defined as the fraction of documents correctly retrieved compared to the relevant
Accuracy_and_precision
Quality measure in hierarchical clustering
can be expected to approximate the ground truth underlying the given similarity measure. In Dasgupta's formulation, the input to a clustering problem consists
Dasgupta's_objective
Measuring device
at the same 25mm sampling interval as highway profilers. Dipstick was used to obtain data that were used as ground truth in FHWA evaluations of the repeatability
Dipstick
US Army deserter and activist
The Private Rebellion of Staff Sergeant Mejía which recounts his journey of conscience in Iraq. Mejía is interviewed in "The Ground Truth: After the Killing
Camilo_Mejía
American meteorologist (1931–2025)
link for resilient communications and ground truth information, including the influential Hurricane Watch Net. The first major tropical cyclone they operated
Neil_Frank
American newspaper publisher
Retrieved May 23, 2025. "Maribel Perez Wadsworth, Author at The GroundTruth Project". The GroundTruth Project. Retrieved May 23, 2025. "Maribel Perez Wadsworth
Maribel_Pérez_Wadsworth
Genre of film that is opposed to warfare in its theming or messaging
glassworker is an anti-war film. Reaves, Jessica (15 September 2006). "'Ground Truth' digs in on anti-war lines". Chicago Tribune. Patricia Foulkrod, a longtime
Anti-war_film
American university instructor and business journalist (born 1962)
for the International Panel on Social Progress (appointed September 2024). She serves on boards of Reporters Without Borders USA, The GroundTruth Project
Anya_Schiffrin
2006 film festival edition
Tired of Us The Ground Truth: After the Killing Ends Iraq in Fragments A Lion in the House small town gay bar So Much So Fast Thin 'Tis Autumn-The Search for
2006_Sundance_Film_Festival
Combination of direct and representative democracy
experience of a specific subject. Nonetheless, in the admittedly few issues where there exists a clear "ground truth" or "correct answer", Caragiannis and Micha
Liquid_democracy
American national service program for emerging journalists
in the United States. Participants are placed in local newsrooms across the country. It was launched in 2017 as an initiative of The GroundTruth Project
Report_for_America
Obtaining information through non-contact sensors
been a frequent target of remote sensing projects, the same as land cover and land use Ground truth or reference data to train and validate image classification
Remote_sensing
Grotesque (1995) Ground (2024) The Ground (2001) The Ground Beneath My Feet (2019) Ground Control (1998) The Ground Truth (2006) Ground Zero: (1973, 1987 & 2025)
List_of_films:_G
are always exploited as the ground truth for testing and validating the performance of artificial intelligence algorithms for the automatic prediction of
Personality_computing
Form of weather spotting
Therefore, ground truth information remains important. New spotter technologies and training techniques have been developing since the 1960s. Prior to the 1960s
Storm_spotting
American geologist (born 1951)
and the natural history of San Francisco Bay. In 2006 he began reconnaissance geologic mapping in coastal Indonesia, part of the ground-truth sleuthing
Brian_Atwater
Term that does not contain any variables
ground atom. Roughly speaking, the Herbrand base is the set of all ground atoms, while a Herbrand interpretation assigns a truth value to each ground
Ground_expression
British children's television drama series
The Dumping Ground is a British children's television drama series that focuses on the lives and experiences of young people who live in a children's home
The_Dumping_Ground
American football player and soldier (1976–2004)
Truth". The New York Times. Archived from the original on October 28, 2011. Ordoňa, Michael (August 18, 2010). "Shadowy Truth: Getting to the truth of
Pat_Tillman
Amateur radio severe weather spotting program
organized and run by the Meteorological Services of Canada of Environment Canada. What CANWARN members do is called ground truthing they confirm and add
CANWARN
American film production company
at the 2007 Sundance Film Festival, including the Audience Award and the Screenwriting Award. The Baxter (2005) Lonesome Jim (2005) The Ground Truth (2006)
Plum_Pictures
American entrepreneur (born 1980)
Liz (February 8, 2015). "Ten Years of Google Maps, From Slashdot to Ground Truth". Vox. "Two top Google engineers leave — to Benchmark Capital". VentureBeat
Bret_Taylor
American actress (born 1966)
Car, The Campaign, and The Frozen Ground. On television, LaNasa has had leading roles in the sitcom Three Sisters (2001–2002), the legal drama Truth Be
Katherine_LaNasa
2006 documentary film by Laura Poitras
Alternate Trailer site with the trailer. EPIC Ground Truth Project: Interview with Director Laura Poitras Joe M. O'Connell review in The Austin Chronicle "Indiewire
My_Country,_My_Country
2005 Canadian film
Military Keynesianism The Ground Truth, a 2006 documentary film about veterans of the Iraq War We Are Many, a 2014 documentary film about the February 2003 global
Why_We_Fight_(2005_film)
Pike, John (April 7, 1998). "Ground Truth: Interagency Training Center". Federation of American Scientists. Archived from the original on 3 August 2001.
Interagency_Training_Center
Mathematical table used in logic
graphical representation of its truth function. The truth function can be more useful for mathematical purposes, although the same information is encoded
Truth_table
British physicist
were important to ground truth satellite observations of the ice sheet. While she was head of the ice and climate division at the British Antarctic Survey
Elizabeth Morris (glaciologist)
Elizabeth_Morris_(glaciologist)
THE GROUND-TRUTH
THE GROUND-TRUTH
Male
English
English surname transferred to forename use, derived from the Middle English word tye, TYE means "pasture."
Surname or Lastname
English
English : unexplained. Compare Grounds.Perhaps an Americanized form of German Grund.
Female
Greek
 Short form of Greek and Latin Dorothea, THEA means "gift of God." Compare with another form of Thea.
Boy/Male
English
From the enclosure.
Surname or Lastname
English (chiefly West Midlands)
English (chiefly West Midlands) : nickname for a plump person, from Middle English, Old French rond, rund ‘fat’, ‘round’ (Latin rotundus).
Surname or Lastname
English
English : unexplained. There are four farms so named in Warwickshire, one in Oxfordshire, and one in Worcestershire, and the surname is most probably derived from one of these.
Surname or Lastname
English
English : patronymic from Round.
Boy/Male
American, British, English, Norwegian, Scandinavian
From the Town on the High Ground; High Ground
Surname or Lastname
English (chiefly Lancashire)
English (chiefly Lancashire) : probably a Middle English metathesized form of the Old French personal name Gondri, Gundric (see Gundry).
Female
Vietnamese
Vietnamese name THU means "autumn."
Female
English
 Pet form of English Theodora, THEA means "gift of God." Compare with another form of Thea.
Female
German
Pet form of German Kätharina, KÄTHE means "pure."
Male
English
Short form of English Theodore, THEO means "gift of God," and other names beginning with Theo-.
Female
Vietnamese
Vietnamese name THI means "poem."
Surname or Lastname
English
English : perhaps an occupational name for a maker of bottles or cups, from Old French gourde ‘water vessel’, ‘flask’, but possibly of the same derivation as 2.French : from Old French gourd ‘heavy’, ‘dull’, ‘sluggish’, hence a nickname for a slow lumbering person.
Surname or Lastname
English (Yorkshire)
English (Yorkshire) : variant of Tye.
Girl/Female
Greek American
Goddess; godly. Also as abbreviation of names like Althea and Dorothea. The mythological Thea was...
Boy/Male
Norse
Son of Hrafn the Foolish.
Male
Native American
Native American Navajo name TSE means "rock."
Surname or Lastname
English (mainly East Anglia)
English (mainly East Anglia) : topographic name for someone who lived by a common pasture, Middle English tye (Old English tēag).North German : from a short form, Tide, of the personal name Dietrich.
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