{"id":1656,"date":"2023-06-13T20:34:46","date_gmt":"2023-06-13T20:34:46","guid":{"rendered":"https:\/\/dailyai.com\/?p=1656"},"modified":"2023-06-13T22:21:26","modified_gmt":"2023-06-13T22:21:26","slug":"amazon-ramps-up-ai-crackdown-on-fake-reviews","status":"publish","type":"post","link":"https:\/\/dailyai.com\/pt\/2023\/06\/amazon-ramps-up-ai-crackdown-on-fake-reviews\/","title":{"rendered":"Amazon refor\u00e7a a repress\u00e3o da IA contra cr\u00edticas falsas"},"content":{"rendered":"<p><strong>A Amazon declarou que est\u00e1 a utilizar ferramentas de IA cada vez mais sofisticadas para combater as cr\u00edticas falsas e os coment\u00e1rios n\u00e3o aut\u00eanticos no seu mercado.\u00a0<\/strong><\/p>\n<p><span style=\"font-weight: 400\">O principal mercado de com\u00e9rcio eletr\u00f3nico do mundo tem-se debatido com falsos corretores de cr\u00edticas desde h\u00e1 muitos anos, culminando recentemente numa a\u00e7\u00e3o judicial contra a NiceRebate.com, um falso corretor de cr\u00edticas que visa os clientes do Reino Unido. <\/span><\/p>\n<p><span style=\"font-weight: 400\">Dharmesh Mehta, chefe da equipa de confian\u00e7a do cliente da Amazon, declarou: \"Estamos a combater agressivamente os corretores de avalia\u00e7\u00f5es\" e revelou que a Amazon tinha tomado medidas legais contra <a href=\"https:\/\/www.aboutamazon.co.uk\/news\/retail\/a-blueprint-for-private-and-public-sector-partnership-to-stop-fake-reviews\">94 desses autores de fraudes de revis\u00e3o em todo o mundo<\/a>incluindo nos EUA, na China e na Europa.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Em 2022, a Fakespot, uma ferramenta criada para detetar cr\u00edticas falsas, analisou 720 milh\u00f5es de cr\u00edticas e estimou que cerca de <\/span><a href=\"https:\/\/www.fakespot.com\/press\"><span style=\"font-weight: 400\">42% eram contrafeitos<\/span><\/a><span style=\"font-weight: 400\"> de alguma forma.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Quase todos os que estudam as avalia\u00e7\u00f5es da Amazon j\u00e1 se depararam com avalia\u00e7\u00f5es suspeitas que parecem intuitivamente falsas. Muitas avalia\u00e7\u00f5es s\u00e3o endossos pagos com o objetivo de aumentar as classifica\u00e7\u00f5es de um vendedor ou sabotar uma empresa rival.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">A Amazon est\u00e1 a investir em modelos de aprendizagem autom\u00e1tica (ML) capazes de analisar milhares de pontos de dados para ajudar a identificar actividades de avalia\u00e7\u00e3o fraudulentas. O modelo de IA avalia v\u00e1rios factores para determinar a probabilidade de uma avalia\u00e7\u00e3o ser falsa, tais como a rela\u00e7\u00e3o do autor com outras contas online, a atividade de in\u00edcio de sess\u00e3o, o hist\u00f3rico de avalia\u00e7\u00f5es e um comportamento invulgar.<\/span><\/p>\n<p><span style=\"font-weight: 400\">A Amazon tamb\u00e9m est\u00e1 a perseguir grupos de redes sociais criados para negociar cr\u00edticas. Em 2022, a Amazon identificou mais de 23 000 grupos de redes sociais, constitu\u00eddos por mais de 46 milh\u00f5es de membros envolvidos na facilita\u00e7\u00e3o de cr\u00edticas falsas.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Numerosos projectos de investiga\u00e7\u00e3o t\u00eam tido como objetivo eliminar as cr\u00edticas falsas utilizando t\u00e9cnicas de IA de processamento da linguagem natural (PNL).<\/span><\/p>\n<p><span style=\"font-weight: 400\"> Por exemplo, <\/span><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0969698921003374\"><span style=\"font-weight: 400\">um estudo em 2022<\/span><\/a><span style=\"font-weight: 400\"> utilizaram o GPT-2 para treinar um classificador de cr\u00edticas falsas que superou o desempenho dos humanos.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Mehta declarou: \"Utilizamos a aprendizagem autom\u00e1tica para procurar contas suspeitas, para seguir as rela\u00e7\u00f5es entre uma conta de comprador que est\u00e1 a deixar uma avalia\u00e7\u00e3o e algu\u00e9m que vende esse produto. Atrav\u00e9s de uma combina\u00e7\u00e3o de verifica\u00e7\u00e3o meticulosa, aprendizagem autom\u00e1tica avan\u00e7ada e intelig\u00eancia artificial, podemos evitar que as cr\u00edticas falsas cheguem ao cliente.\"<\/span><\/p>\n<h2><span style=\"font-weight: 400\">Como a IA detecta cr\u00edticas falsas<\/span><\/h2>\n<p><span style=\"font-weight: 400\">Se alguma vez leu uma cr\u00edtica e pensou: \"Parece falso\", isso prova que a IA pode fazer o mesmo. H\u00e1 sinais e pistas que se apanham, e a IA tamb\u00e9m os pode aprender.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">As IA podem utilizar a PNL para analisar factores como pontua\u00e7\u00e3o excessiva, gram\u00e1tica deficiente e tons demasiado negativos ou positivos, tamb\u00e9m designados por an\u00e1lise de sentimentos. No entanto, a dete\u00e7\u00e3o de cr\u00edticas falsas \u00e9 mais do que isso e, se a Amazon n\u00e3o definir crit\u00e9rios rigorosos, corre o risco de remover cr\u00edticas genu\u00ednas.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Outros m\u00e9todos incluem a an\u00e1lise dos tipos de produtos que recebem cr\u00edticas falsas, o momento em que as cr\u00edticas falsas s\u00e3o deixadas e se as cr\u00edticas gen\u00e9ricas de 5 estrelas prov\u00eam da mesma conta.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Claro que n\u00e3o h\u00e1 ningu\u00e9m melhor colocado para analisar esses dados do que a Amazon, o que levanta a quest\u00e3o: porque \u00e9 que o problema \u00e9 t\u00e3o grande (ou maior) do que nunca?<\/span><\/p>\n<p><span style=\"font-weight: 400\">Por muito que a Amazon queira promover a confian\u00e7a atrav\u00e9s da remo\u00e7\u00e3o de cr\u00edticas falsas, a manuten\u00e7\u00e3o de grandes volumes de <\/span><i><span style=\"font-weight: 400\">todos <\/span><\/i><span style=\"font-weight: 400\">\u00e9 do seu interesse. <\/span><\/p>\n<p><span style=\"font-weight: 400\">Como <a href=\"https:\/\/nymag.com\/intelligencer\/2022\/07\/amazon-fake-reviews-can-they-be-stopped.html\">Saoud Khalifah, do Fakespot, afirma<\/a>Se a Amazon eliminasse 100% das cr\u00edticas falsas, perderia centenas de milhares de milh\u00f5es de euros de valor para os accionistas\".<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>A Amazon declarou que est\u00e1 a utilizar ferramentas de IA cada vez mais sofisticadas para combater as cr\u00edticas falsas e os coment\u00e1rios n\u00e3o aut\u00eanticos no seu mercado.  O principal mercado de com\u00e9rcio eletr\u00f3nico do mundo tem lutado com corretores de avalia\u00e7\u00f5es falsas durante muitos anos, culminando recentemente numa a\u00e7\u00e3o legal contra a NiceRebate.com, um corretor de avalia\u00e7\u00f5es falsas que visa os clientes do Reino Unido. Dharmesh Mehta, chefe da equipe de confian\u00e7a do cliente da Amazon, declarou: \"Estamos lutando agressivamente contra os corretores de avalia\u00e7\u00f5es\" e revelou que a Amazon havia tomado medidas legais contra 94 desses fraudadores de avalia\u00e7\u00f5es em todo o mundo, incluindo nos EUA, China e Europa. Em 2022, a Fakespot, uma ferramenta criada para detetar cr\u00edticas falsas, analisou 720 milh\u00f5es de cr\u00edticas e estimou que<\/p>","protected":false},"author":2,"featured_media":1657,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[141,142,143,144],"class_list":["post-1656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethics","tag-amazon","tag-content-moderation","tag-natural-language-processing","tag-nlp"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Amazon ramps up AI crackdown on fake reviews | DailyAI<\/title>\n<meta name=\"description\" content=\"Amazon has declared it&#039;s utilizing increasingly sophisticated AI tools to combat counterfeit reviews and non-authentic comments on its marketplace.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dailyai.com\/pt\/2023\/06\/amazon-ramps-up-ai-crackdown-on-fake-reviews\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Amazon ramps up AI crackdown on fake reviews | DailyAI\" \/>\n<meta property=\"og:description\" content=\"Amazon has declared it&#039;s utilizing increasingly sophisticated AI tools to combat counterfeit reviews and non-authentic comments on its marketplace.\u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dailyai.com\/pt\/2023\/06\/amazon-ramps-up-ai-crackdown-on-fake-reviews\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-13T20:34:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-13T22:21:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/06\/amazon-5199161_1280.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"853\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sam Jeans\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:site\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sam Jeans\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/06\\\/amazon-ramps-up-ai-crackdown-on-fake-reviews\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/06\\\/amazon-ramps-up-ai-crackdown-on-fake-reviews\\\/\"},\"author\":{\"name\":\"Sam Jeans\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/#\\\/schema\\\/person\\\/711e81f945549438e8bbc579efdeb3c9\"},\"headline\":\"Amazon ramps up AI crackdown on fake reviews\",\"datePublished\":\"2023-06-13T20:34:46+00:00\",\"dateModified\":\"2023-06-13T22:21:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/06\\\/amazon-ramps-up-ai-crackdown-on-fake-reviews\\\/\"},\"wordCount\":505,\"publisher\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/06\\\/amazon-ramps-up-ai-crackdown-on-fake-reviews\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dailyai.com\\\/wp-content\\\/uploads\\\/2023\\\/06\\\/amazon-5199161_1280.jpg\",\"keywords\":[\"Amazon\",\"Content moderation\",\"Natural language processing\",\"NLP\"],\"articleSection\":[\"Ethics &amp; 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