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Tripadvisor has been the subject of controversy for allowing unsubstantiated anonymous reviews to be posted about any hotel, bed and breakfast, inn, or restaurant. [64]In May 2021, Tripadvisor was criticized for allowing an offensive review to be posted about the Auschwitz-Birkenau State Museum in which a visitor described bringing a baby to the gas chambers.
Affinity frauds can involve the targeting of any group of people who take pride in their shared characteristics, whether they are religious, ethnic, or professional. Agencies such as the U.S. Securities and Exchange Commission have investigated and taken action against affinity frauds targeting a wide spectrum of groups. [1]
BBB National Programs, an independent non-profit organization that oversees more than a dozen national industry self-regulation programs that provide third-party accountability and dispute resolution services to companies, including outside and in-house counsel, consumers, and others in arenas such as privacy, advertising, data collection, child-directed marketing, and more.
An online customer review system enables potential customers to assess the quality of tour providers. Additionally, GetYourGuide removes providers who consistently get bad reviews from its inventory. [7] In August 2018, GetYourGuide began selling tours under its own brand name.
The Mantria Corporation Ponzi scheme has been described as the "biggest green energy scam" in United States history. [1] A Federal judge in the Securities and Exchange Commission's civil case found Mantria had scammed more than $54.5 million “by egregiously, recklessly, knowingly, and shamelessly perpetrating a fraudulent scheme” that used “misrepresentations, omissions, and blatant lies ...
It seems quite clear that switching off article creation for a group of potential contributors does not solve this problem, meaning that the community should carefully consider how it values and rewards maintenance work, and how it can maintain a healthy community of maintainers. — Autoconfirmed article creation trial/Post-trial Research Report
"NP" is both the name of the novel and of a short story collection within the novel's plot, a collection written in English by the character Sarao Takase, who committed suicide before he could translate it into Japanese. Three more people attempting to translate the collection have also committed suicide.
NP can be defined similarly using nondeterministic Turing machines (the traditional way). However, a modern approach uses the concept of certificate and verifier. Formally, NP is the set of languages with a finite alphabet and verifier that runs in polynomial time. The following defines a "verifier": Let L be a language over a finite alphabet, Σ.