RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
43 results for "Vallée classification" — page 2 of 3
ZD_2_04 — Computer Vision and Image Processing
Computer vision — enabling machines to interpret and understand visual information from the world — has progressed from hand-crafted feature engineering to the deep learning revolution that now approaches or exceeds huma
H_2_13 — Reproducibility in Archaeology: Method Reliability Assessment
Reproducibility — the ability of independent researchers to produce the same results using the same methods on the same or equivalent materials — is a cornerstone of scientific credibility. Yet archaeology faces unique c
H_2_18 — Cold War Scientific Espionage and Suppressed Research
The Cold War (1947–1991) created an unprecedented regime of scientific secrecy in which entire fields of research — nuclear physics, rocketry, biological weapons, cryptography, remote sensing, and materials science — wer
ZE_2_13 — Ethics of Secrecy — Mystery Schools vs. Democratic Knowledge
The ethics of secrecy examines the tension between esoteric traditions — which hold that certain knowledge must be restricted to prepared initiates — and democratic ideals that treat open access to information as a funda
I_2_07 — Project Blue Book: History and Legacy
Project Blue Book (1952–1969) was the third and longest-running official U.S. Air Force program for investigating unidentified flying objects (UFOs), preceded by Project Sign (1947–1949) and Project Grudge (1949–1952). B
I_2_09 — French GEIPAN: Europe's Official UAP Investigation
GEIPAN (Groupe d'Études et d'Informations sur les Phénomènes Aérospatiaux Non Identifiés) — housed within France's national space agency CNES (Centre National d'Études Spatiales) — is the world's only continuously operat
I_2_05 — International UAP Programs (GEIPAN, COMETA, CEFAA, and Global Investigations)
While the United States has received the most attention for UAP investigation, numerous other nations have operated — and in several cases continue to operate — official government programs to study unidentified aerial p
I_2_12 — UAP Legislation: Congressional Action and Policy
Since 2020, the United States Congress has enacted the most significant UAP-related legislation in U.S. history — a series of provisions embedded in the National Defense Authorization Act (NDAA) and the Intelligence Auth
I_3_07 — Belgian UAP Wave (1989–1990)
The Belgian UAP wave (November 1989 – April 1990) is one of the best-documented mass UAP sighting events in history, characterized by hundreds of reports of a large, silent, triangular craft with bright lights at each ve
I_1_13 — Interdimensional & Ultraterrestrial Hypothesis
The interdimensional hypothesis (IDH) and ultraterrestrial hypothesis (UTH) propose that unidentified aerial phenomena originate not from extraterrestrial civilizations traveling across interstellar distances, but from b
I_1_07 — Extraterrestrial Hypothesis Alternatives
The Extraterrestrial Hypothesis (ETH) — that UAP represent physical craft operated by biological beings from other planets — has dominated popular understanding of the UFO phenomenon since the late 1940s. However, numero
I_5_17 — UAP and Consciousness: The Intersection
A persistent, under-discussed feature of serious UAP research is that the most intense witness reports — close-encounter cases, repeated-percipient cases, and the "contact phenomenon" — show high correlation with altered
I_5_06 — UAP-Consciousness Interface — The Psychic Component
A persistent thread in UAP research links the phenomenon to
I_4_09 — Scientific Analysis of UAP Physical Evidence — Trace Cases
Physical trace cases represent one of the most scientifically significant — yet frustratingly inconclusive — categories of UAP evidence: instances where alleged UAP encounters left measurable, physical residues on the en
I_4_14 — UAP Material Science & Metamaterials Analysis
UAP material science examines physical samples allegedly recovered from or associated with unidentified aerial phenomena, seeking anomalous compositional, isotopic, or structural properties that might indicate non-terres
V_2_11 — Abstract Algebra: Groups, Rings, and Fields
Abstract algebra is the study of algebraic structures — sets equipped with operations satisfying specific axioms — that generalize familiar arithmetic operations to reveal deep structural patterns across mathematics and
V_2_14 — Differential Topology and Manifolds
Differential topology studies smooth manifolds — spaces that locally resemble Euclidean $\mathbb{R}^n$ with smooth (infinitely differentiable) transition maps — and the smooth maps between them, classified up to diffeomo
B_4_06 — Djinn Ecology — Classification, Habitat, and Interaction Traditions
The Islamic tradition preserves the most elaborate and internally consistent classification system for non-human intelligent beings in any world religion. Jinn (al-jinn) — created from "smokeless flame" (mārijin min nār,
I_1_04 — Non-Human Intelligence (NHI) Taxonomy and Classification Systems
The classification and taxonomy of non-human intelligence (NHI) has
I_1_00 — Core Concepts Classification: Subfolder Summary
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