All articles starting with R
22,461 articles
Rising Stars Challenge
Rising Stars Challenge, NBA All-Star Weekend rookie-sophomore showcase since 1994, now a four-team mini-tournament of rookies, sophomores, and G League players; winner joins the All-Star Game since 2025; 2026 MVP VJ Edgecombe.
Rising Sun (1993 film)
Rising Sun (1993) is a Philip Kaufman mystery thriller starring Sean Connery and Wesley Snipes, adapted from Michael Crichton's Japan-bashing bestseller; released by Fox July 30, 1993, protested by Asian-American groups, grossing $62.5 million.
Rising Sun (Crichton novel)
Rising Sun is Michael Crichton's 1992 Knopf thriller about the murder of a woman at the Los Angeles opening of the Japanese conglomerate Nakamoto Tower, a number-one bestseller that sparked Japan-bashing controversy and a 1993 film with Sean Connery and Wesley Snipes.
Rising Sun Flag (旭日旗)
Rising Sun Flag (旭日旗, Kyokujitsuki), Japan's red-disk, sixteen-ray military flag: Imperial Army war flag from 1870, Imperial Navy ensign, and since 1954 the JMSDF ensign and JGSDF flag, contested by South Korea as a militarism symbol.
Rising Sun for Latvia
Rising Sun for Latvia (Austošā Saule Latvijai, ASL) is a Latvian national-conservative party founded 23 August 2025 by ex-National Alliance secretary Raivis Zeltīts; it won 1.33% and no seats in the 2026 Saeima election.
Rising Sun Rock Festival (festival)
The Rising Sun Rock Festival (ライジング・サン・ロックフェスティバル), also known as RSR, is an annual all-night outdoor rock festival at Ishikari Bay New Port in Hokkaido, Japan, first held in 1999.
Risings against the Afghans in Iran (1722–1729)
The risings against the Afghans in Iran (شورشهای ضد افغان) were provincial revolts and a Safavid restoration movement after the 1722 Afghan conquest, ending with Nader's victory in 1729.
RisingWave
RisingWave is an open-source distributed SQL streaming database written in Rust by RisingWave Labs (formerly Singularity Data). PostgreSQL wire-compatible, Apache 2.0, Hummock S3 state store, incrementally maintained materialized views, exactly-once barrier checkpointing, 50+ connectors, Iceberg and vector search support.
Risk
Risk in finance is the distribution of possible losses on a position or portfolio over a stated horizon, distinct from Knightian uncertainty, and measured by metrics such as volatility and Value-at-Risk.
Risk (game)
Risk (board game), from Albert Lamorisse's La Conquête du Monde (1957), published by Parker Brothers as Risk in 1959; a 2-5 player dice-combat conquest game on a 42-territory world map, inducted into the National Toy Hall of Fame in 2021.
Risk (Megadeth album)
Risk (1999), Megadeth's eighth studio album on Capitol, recorded in Nashville with producer Dann Huff; a hard rock/electronica departure from metal, Jimmy DeGrasso's studio debut, Marty Friedman's last Megadeth album.
Risk assessment
Risk assessment: the systematic process of identifying hazards, analyzing likelihood and consequences, and evaluating risks against criteria, central to ISO 31000 risk management, EPA and NIOSH regulatory practice, and distinct from psychological risk perception.
Risk aversion
Risk aversion is the preference for a certain outcome over a risky prospect with the same expected value, modeled as concavity of the utility function in expected utility theory.
Risk compensation
Risk compensation, or risk homeostasis, is the hypothesis that people offset safety improvements with riskier behavior. Originated by Peltzman (1975) and Wilde (1982); empirical support for significant offsetting is weak.
Risk difference
The risk difference is an epidemiological and biostatistical measure defined as the difference in the probability of an outcome between two groups, quantifying the absolute effect of an exposure or treatment.
Risk factor
Risk factor: an epidemiology term for a behavior, exposure, or hereditary characteristic associated with increased disease occurrence; also called predictor. Distinguished from causal factors; Framingham popularized the term in 1961.
Risk factors for osteoarthritis
Risk factors for osteoarthritis, the degenerative joint disease, include older age, obesity, joint injury, malalignment, occupational loading, and genetics; prior knee injury roughly triples risk.
Risk It All (Bruno Mars song)
Risk It All is a 2026 bolero ballad by Bruno Mars, opening track and second single from The Romantic; written with D'Mile, Philip Lawrence, and James Fauntleroy; Spanish version Lo Arriesgo Todo; Hot 100 No. 4 debut, later No. 8.
Risk management
Risk management, also called risk analysis, is the coordinated set of activities by which an organization identifies, analyzes, evaluates, treats, and monitors risk, guided by standards such as ISO 31000.
Risk matrix
A risk matrix is a risk management grid that places rated risks by likelihood and consequence, with colored cells marking unacceptable, intermediate, and acceptable risk.
Risk of Bias 2
Risk of Bias 2 (RoB 2) is a Cochrane tool for assessing risk of bias in results of randomized trials, published in the BMJ in 2019.
Risk of Rain 2
Risk of Rain 2 is a 3D third-person roguelike shooter by Hopoo Games, sequel to 2013's Risk of Rain; Early Access 2019, full release 2020, four-player co-op, 70+ stacking items, later owned by Gearbox.
Risk parity
Risk parity is a portfolio allocation approach that sizes each asset class to contribute an equal share of portfolio risk, typically producing bond-heavy portfolios that need leverage.
Risk premium
A risk premium is the extra expected return investors demand for bearing uncertain cash flows, most often the equity risk premium, whose observed size standard theory cannot explain.
Risk terrain modeling
Risk terrain modeling (RTM) is a spatial analysis method that combines map layers of environmental risk factors to forecast where crime or other adverse events will occur.
Risk-based inspection
Risk-based inspection (RBI) is a maintenance planning method that prioritizes equipment inspection by the risk of failure, combining failure likelihood with consequence, mainly in the hydrocarbon and chemical process industries.
Risk-neutral measure
The risk-neutral measure, also called the equivalent martingale measure, is a probability measure under which discounted asset prices are martingales, central to no-arbitrage derivative pricing.
Risk-sensitive reinforcement learning
Risk-sensitive reinforcement learning is a family of reinforcement learning methods that optimize objectives over the return's distribution, such as variance or conditional value-at-risk, rather than the expected return.
Risk-weighted asset
A risk-weighted asset (RWA) is a bank's exposure multiplied by a regulatory risk weight, forming the denominator of the capital ratios that set required bank capital.
Riskified
Riskified is an Israeli-founded, NYSE-listed technology company, trading as RSKD since 2021, that reviews e-commerce orders and reimburses merchants for approved orders that turn out fraudulent.