flashcards.csv

"In discrete choice modelling, what does the acronym GNL stand for?",GNL stands for the generalized nested logit model.
What is the primary challenge associated with optimisation under the generalized nested logit (GNL) model?,"Optimisation under GNL is highly challenging, with even the pure assortment problem being NP-hard."
What novel method is proposed in the 'General Economics' text for solving constrained assortment and joint assortment-pricing (JAP) under GNL?,The paper develops exact and near-exact algorithms by reformulating the problem into bilinear and exponential-cone convex programs within a Branch-and-Cut (B&C) framework.
How does the endogenous grid method (EGM) accelerate dynamic programming?,"The EGM accelerates dynamic programming by inverting the Euler equation, which avoids the need for root-finding."
"According to the climate-economy model described, what is the projected permit price per ton of carbon by 2050?",The permit price is projected to reach $923 per ton of carbon by 2050.
Under what conditions can parametric insurance yield higher welfare for risk-averse individuals than traditional indemnity insurance?,"Parametric insurance can yield higher welfare when realistic frictions like fixed costs, heterogeneous premium loadings, and binding budget constraints are introduced."
What is the primary objective of the TESTPREV problem in epidemic surveillance on networks?,"The objective of TESTPREV is to choose a subset of nodes that maximises the mutual information with disease prevalence, providing insight into the outbreak size distribution."
What is the key finding regarding the reduction of social impact models on hypergraphs?,A general class of social impact models with higher-order interactions on hypergraphs can be exactly reduced to an equivalent model with pairwise interactions on a weighted projected network.
"In community detection, the point below which no method can perform better than random chance is known as the _____.",detectability limit
"How can the difference in graph energy be used in network science, according to Böttcher, Porter, and Fortunato?",The difference in graph energy between a planted partition model (PPM) and an Erdős–Rényi (ER) network shows a distinct transition at the detectability threshold.
What type of ranking does the nonparametric Bayesian method developed by Morel-Balbi and Kirkley aim to learn?,"The method is for learning partial rankings, which are rankings that include ties, distinguishing between items only when there is sufficient evidence."
"According to the U-Model, what are the three fundamental and minimal categories required for any stable existence?","The three minimal categories for stable existence are Form, Position, and Action."
"In the U-Model's socio-normative application (L3), what are the social equivalents of Form, Position, and Action?","The social equivalents are Code (Form), Credo (Position), and Rights (Action)."
The U-Model distinguishes three levels of claims. What is the L1 level?,"The L1 level is Ontological, claiming that Form, Position, and Action are the minimum categories for existence, which is considered axiomatically true."
The U-Model distinguishes three levels of claims. What is the L2 level?,"The L2 level is Physical-informational, which posits a structural analogy or isomorphism with quantum mechanics and thermodynamics, noting compatibility but not causality."
The U-Model distinguishes three levels of claims. What is the L3 level?,"The L3 level is Socio-normative, which involves the application of the model to ethics and governance, and is considered empirically testable."
"What term does the U-Model use to describe the relationship between its different levels of claims, such as between physics and ethics?","The model uses the term 'isomorphic inheritance', signifying a structural analogy rather than a direct logical deduction."
How does the U-Model define a stable system in thermodynamic terms?,A stable system is defined as one that minimises its entropy production rate while preserving its identity.
What are the three exhaustive and mutually exclusive modes of instability identified by the U-Model?,"The three modes are Chaos (undefined Form), Infinity (undefined Position), and Arbitrariness (undefined Action)."
How does the U-Model operationalise the concept of 'social entropy'?,"Social entropy is operationalised as information uncertainty, measured by Shannon's H, rather than as literal thermodynamic entropy."
What is the 'Entropy Triangle' in the U-Model?,"It is a geometric representation where the corners represent Code, Credo, and Rights, and the centroid represents a state of minimal entropy or maximum stability."
"What heuristic threshold value is proposed in the U-Model for assessing stability, based on the golden ratio?",The proposed working threshold for stability is $ \phi \approx 0.618 $ (61.8%).
What is the formula for the U-Score in the U-Model?,The U-Score is the arithmetic mean of the scores for the three pillars: $ U\text{-}Score = \frac{Code + Credo + Rights}{3} $.
What is the formula for the Stability Index (SI) in the U-Model?,"The formula is $ SI = \sqrt[3]{U_{Code} \times U_{Credo} \times U_{Rights}} \times \frac{1}{(1 + \delta)^2} $, where $ \delta $ is the imbalance penalty."
"In the U-Model, the principle of 'Credo' is a defense mechanism against what type of chaos?","'Credo' (Position) is a defense against resource chaos, which includes short-term thinking, waste, and poor allocation."
"In the U-Model's analogy with the Bohr atom model, which part of the atom corresponds to 'Code'?","The electron, which defines the atom's boundary and chemical identity, corresponds to 'Code' (Form)."
"In the U-Model's mapping of the Standard Model's symmetry groups, which group corresponds to 'Credo' (Position)?","The Strong Interaction, $ SU(3) $, corresponds to 'Credo' (Position) as it defines the mass core and structural integrity of matter."
"According to the U-Model, what does the term 'decoherence' describe in quantum mechanics?","Decoherence describes the physical process of the loss of quantum correlations, explaining the effective determinism of the macroscopic world."
"What is a 'dissipative structure' according to the U-Model, referencing Prigogine?",A dissipative structure is a system far from thermodynamic equilibrium that maintains order through a continuous exchange of energy and matter with its environment.
What is the 'Ontological Inheritance Principle' in the U-Model?,"It is a principle of structural induction stating that if subsystems require F+P+A for stability, then the composite system also requires F+P+A at the macro level."
"According to the U-Model's analysis of governance, a state is defined as a 'Failed State' when at least one of its three pillars falls below what threshold?","A state is considered 'Failed' when its score for Code, Credo, or Rights falls below the golden ratio threshold, $ \phi \approx 0.618 $."
How does the U-Model propose to measure organizational entropy ($ H_{org} $) using information theory?,"It can be measured using Shannon entropy on communication networks, $ H_{org} = -\sum_{i=1}^{n} p(m_i) \log_2 p(m_i) $, where $ p(m_i) $ is the probability of interpreting a message in a certain way."
"What is the U-Model's defensible claim regarding its influence on behaviour, as opposed to a deterministic one?","The defensible claim is that the U-Model defines the phase space of probable behaviours, rather than strictly determining behaviour."
What is the U-Model's response to the criticism that its three categories are just an analogy for 3D geometry?,"The model asserts that the categories are based on logical categoriality, not physical geometry, and would remain minimal even in a reality with more than three spatial dimensions."
What is the stated purpose of the proposed 'Planetary Buffer AI' in the U-Model framework?,Its purpose is to serve as an anti-manipulation mechanism for U-Score evaluations by aggregating results from multiple independent AI systems.
"The U-Model's 'Rights' pillar, focusing on fair expectations, is directly inspired by which well-known management tool?",The 'Rights' pillar is directly inspired by the research behind the Gallup Q12 employee engagement survey.
"In Appendix K, the U-Model is connected to chaos theory. What is the Kolmogorov-Sinai (KS) entropy?","KS entropy measures the rate of information production in a dynamical system, where a positive value indicates chaotic behaviour."
"According to Pesin's Theorem, the Kolmogorov-Sinai (KS) entropy is equal to the sum of the positive _____.",Lyapunov exponents
What is the Orthogonality Index (OI) designed to measure within the U-Model framework?,"The OI is a quantitative measure of the functional independence and lack of overlap between the three pillars (Code, Credo, Rights)."
"According to the U-Model, what is the thermodynamic cost of Action, based on Landauer's Principle?",The cost is that erasing one bit of information (an action) requires a minimum energy dissipation of $ k_B T \ln 2 $.
What is the U-Model's 'Universal Definition of Good Governance'?,"Good Governance is defined as the minimisation of entropy-generating problems in maintaining Form, Position, and Action."
"The U-Model suggests a 'Form Protection Ratio' of approximately 0.05%, which is derived from what physical constant?","It is derived from the mass ratio of an electron (shell) to a proton (core), which is approximately $ \frac{1}{1836} $."
"In the U-Model's comparative analysis, how is it positioned relative to the UN Sustainable Development Goals (SDGs)?","The U-Model is presented as the 'HOW' (a measurable, operational framework), whereas the SDGs represent the 'WHAT' (an aspirational vision)."
What does the U-Model claim is the 'smallest possible description that distinguishes something from nothing'?,The smallest description is the triadic structure: $ Stable \; Existence \;\Longleftrightarrow\; Form \;\otimes\; Position \;\otimes\; Action $.
"In the context of AI alignment, the U-Model proposes that AI systems must operate in UMSG Space. What does this require?",It requires that every action taken by the AI must result in a non-positive change in public entropy ($ \delta H_{public}(a) \leq 0 $).
What physical principle is used in the U-Model as an analogy for the 'Code' (Form) constraint?,"The Pauli Exclusion Principle, which forbids fermions from occupying identical quantum states, serves as the analogy for 'Code'."
What physical principle is used in the U-Model as an analogy for the 'Position' (Credo) constraint?,"Colour Confinement from the Strong Interaction, which prevents quarks from existing in isolation, serves as the analogy for 'Position'."
The U-Model proposes a 'Civilization Temperature Scale'. What state is analogous to a U-Score above the golden ratio threshold ($ > 61.8\% $)?,"This state is described as a Stable Civilization, analogous to a crystal lattice (order)."
The U-Model's 'Credo' pillar is based on generalising the management philosophy of which company?,"The 'Credo' pillar generalises the management philosophy of Toyota, specifically The Toyota Way/Toyota Production System (TPS)."
What is the stated purpose of the proposed U-Model Institute to be located on Vitosha Mountain?,It is proposed as the central hub for the Planetary Buffer AI and a symbolic centre for humanity's unified governance.