{"id":2840,"date":"2025-03-12T13:31:23","date_gmt":"2025-03-12T16:31:23","guid":{"rendered":"https:\/\/nextage.com.br\/blog\/?p=2840"},"modified":"2026-03-19T14:59:39","modified_gmt":"2026-03-19T17:59:39","slug":"ai-text-understanding","status":"publish","type":"post","link":"https:\/\/nextage.com.br\/blog\/ai-text-understanding\/","title":{"rendered":"\u201cDesculpe, n\u00e3o entendi sua pergunta\u201d: os bastidores da IA no processamento da Linguagem Natural"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Desde o filme \u201cEla\u201d (Her), dirigido por Spike Jonze e lan\u00e7ado em 2013, a ideia de um assistente de IA humanizado, capaz de interagir naturalmente por voz, tem fascinado muitas pessoas. Na trama, um homem se apaixona por uma IA chamada Samantha, que, apesar de parecer extremamente real, nunca ser\u00e1 verdadeiramente humana.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Doze anos depois, essa ideia deixou de ser pura fic\u00e7\u00e3o cient\u00edfica. Ferramentas de IA generativa como o ChatGPT e assistentes virtuais como Siri, da Apple, e Alexa, da Amazon, ajudam as pessoas a se localizar no tr\u00e2nsito, criar listas de compras e realizar diversas outras tarefas. No entanto, para al\u00e9m de textos, os sistemas de reconhecimento autom\u00e1tico de fala \u2014 assim como Samantha \u2014 ainda est\u00e3o longe do n\u00edvel de compreens\u00e3o do ser humano.<\/span><\/p>\n<figure id=\"attachment_2842\" aria-describedby=\"caption-attachment-2842\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2842\" src=\"https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/Her.webp\" alt=\"Homem sentado na frente de um computador.\" width=\"1200\" height=\"800\" srcset=\"https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/Her.webp 1200w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/Her-300x200.webp 300w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/Her-1024x683.webp 1024w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/Her-768x512.webp 768w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/Her-150x100.webp 150w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-2842\" class=\"wp-caption-text\">&#8220;Her&#8221; (2013), dirigido por Spike Jonze.<\/figcaption><\/figure>\n<hr \/>\n<h2><span style=\"font-weight: 400;\">Quais s\u00e3o essas limita\u00e7\u00f5es?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Segundo o estudo <\/span><a href=\"https:\/\/dl.acm.org\/doi\/10.1145\/3379503.3403563\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">See What I\u2019m Saying? Comparing Intelligent Personal Assistant Use for Native and Non-native Language Speakers<\/span><\/a><span style=\"font-weight: 400;\"> (2020), realizado em conjunto por linguistas e cientistas da computa\u00e7\u00e3o, a performance desses sistemas varia conforme os usu\u00e1rios. A pesquisa mostra que, no caso da l\u00edngua inglesa, a taxa de erros aumenta caso a pessoa tenha sotaque estrangeiro, \u00e9 negra, fala em um dialeto como o African American Vernacular English (AAVE), alterna entre idiomas (code-switching), \u00e9 mulher, idosa, muito jovem ou tem dificuldades na fala.<\/span><\/p>\n<hr \/>\n<h2><span style=\"font-weight: 400;\">Por que as IAs t\u00eam dificuldades interpretar certas pessoas?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Isso acontece porque, diferente dos humanos, os sistemas de reconhecimento n\u00e3o s\u00e3o ouvintes &#8220;emp\u00e1ticos&#8221;. Enquanto n\u00f3s interpretamos palavras levando em conta entona\u00e7\u00e3o, express\u00f5es faciais e o contexto, fazendo o m\u00e1ximo de esfor\u00e7o para compreender o discurso, a IA simplesmente faz um palpite probabil\u00edstico \u2014 e, muitas vezes, erra.<\/span><\/p>\n<hr \/>\n<h2><span style=\"font-weight: 400;\">A raiz do problema: os dados usados para treinar a IA<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2843 size-full\" src=\"https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/os-dados-usados-para-treinar-a-IA.webp\" alt=\"AI text understanding\" width=\"1200\" height=\"800\" srcset=\"https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/os-dados-usados-para-treinar-a-IA.webp 1200w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/os-dados-usados-para-treinar-a-IA-300x200.webp 300w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/os-dados-usados-para-treinar-a-IA-1024x683.webp 1024w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/os-dados-usados-para-treinar-a-IA-768x512.webp 768w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/os-dados-usados-para-treinar-a-IA-150x100.webp 150w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Mas o que causa esse tipo de erro? Parte da explica\u00e7\u00e3o est\u00e1 nos dados usados para treinar os modelos de IA. Para aprender a compreender e imitar a fala humana, a intelig\u00eancia artificial \u00e9 alimentada com grandes volumes de textos e \u00e1udios reais. O problema \u00e9: de quem s\u00e3o essas vozes?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Se um sistema tem alta precis\u00e3o ao interagir com americanos brancos de classe m\u00e9dia na faixa dos 30 anos, \u00e9 prov\u00e1vel que tenha sido treinado a partir de falas dessa popula\u00e7\u00e3o. Isso significa que pessoas de outras origens, idades e classes sociais podem enfrentar mais dificuldades ao usar essas tecnologias.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Assim, para tornar a IA mais precisa, \u00e9 preciso diversificar os dados utilizados no treinamento, levando em conta vari\u00e1veis como g\u00eanero, idade, ra\u00e7a, idiomas e sotaques. Al\u00e9m disso, deve permitir que os sistemas admitam incertezas e pe\u00e7am esclarecimentos, como um humano faria.<\/span><\/p>\n<hr \/>\n<h2><span style=\"font-weight: 400;\">O vi\u00e9s lingu\u00edstico na IA<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Para quem n\u00e3o fala ingl\u00eas fluentemente \u2014 ou seja, a maior parte da popula\u00e7\u00e3o mundial \u2014, os desafios s\u00e3o ainda maiores. As principais IAs generativas foram desenvolvidas com base nessa l\u00edngua, funcionando melhor em ingl\u00eas do que em qualquer idioma. Embora a IA tenha potencial para tornar a tradu\u00e7\u00e3o mais acess\u00edvel e conectar pessoas de diferentes l\u00ednguas, a maioria dos idiomas sofre com poucos dados, o que dificulta seu uso em LLMs (Language Large Models).\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Mesmo dentro de idiomas amplamente falados, como ingl\u00eas e espanhol, o desempenho da IA pode variar dependendo do dialeto usado. Isso acontece porque os sistemas podem refletir certos preconceitos embutidos nos conjuntos de dados em que foram treinados.<\/span><\/p>\n<hr \/>\n<h2><span style=\"font-weight: 400;\">O valor da conex\u00e3o humana<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2844\" src=\"https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/o-valor-da-conexao-humana.webp\" alt=\"Dedos de uma m\u00e3o humana e uma m\u00e3o rob\u00f3tica se tocando\" width=\"1200\" height=\"800\" srcset=\"https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/o-valor-da-conexao-humana.webp 1200w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/o-valor-da-conexao-humana-300x200.webp 300w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/o-valor-da-conexao-humana-1024x683.webp 1024w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/o-valor-da-conexao-humana-768x512.webp 768w, https:\/\/nextage.com.br\/blog\/wp-content\/uploads\/2025\/03\/o-valor-da-conexao-humana-150x100.webp 150w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">A tend\u00eancia \u00e9 que a IA melhore gradualmente sua capacidade de compreender diferentes sotaques, varia\u00e7\u00f5es lingu\u00edsticas e altern\u00e2ncia entre idiomas.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Mesmo na comunica\u00e7\u00e3o entre humanos, mal-entendidos acontecem. Mas, ao interagir com outra pessoa, h\u00e1 sempre a chance de encontrar um ouvinte emp\u00e1tico, capaz de interpretar contexto e emo\u00e7\u00f5es.<\/span><\/p>\n<hr \/>\n<h3><span style=\"font-weight: 400;\">QA Booster: linguagem natural em testes de software<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Os desafios da IA na compreens\u00e3o da fala humana n\u00e3o afetam apenas assistentes virtuais, mas tamb\u00e9m influenciam outras \u00e1reas da tecnologia, como o desenvolvimento e a automa\u00e7\u00e3o de testes de software.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Na NextAge, entendemos a import\u00e2ncia da linguagem natural para tornar a intera\u00e7\u00e3o com IA mais fluida e acess\u00edvel. Sabemos que essa tecnologia pode otimizar tarefas do dia a dia, incluindo processos de QA em softwares.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pensando nisso, criamos o <a href=\"https:\/\/nextage.com.br\/servicos\/quality-center\/?utm_source=organico&amp;utm_medium=site&amp;utm_campaign=web?utm_source=blog&amp;utm_medium=social&amp;utm_campaign=qabooster\" target=\"_blank\" rel=\"noopener\">QA Booster<\/a>, uma nova vertical da NextAge focada na automatiza\u00e7\u00e3o de testes de software com IA. O diferencial desse servi\u00e7o est\u00e1 no uso de linguagem natural, permitindo que os testes sejam mais intuitivos e abrangentes, considerando diferentes formas de comunica\u00e7\u00e3o.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Al\u00e9m de melhorar a experi\u00eancia do usu\u00e1rio, o QA Booster torna o processo de QA mais r\u00e1pido, eficiente e preciso. Ele reduz o tempo de testagem e entrega resultados confi\u00e1veis, apresentados em um dashboard intuitivo.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Com avan\u00e7os como esse, a IA pode n\u00e3o apenas superar suas limita\u00e7\u00f5es, mas tamb\u00e9m se tornar uma aliada poderosa na inova\u00e7\u00e3o e automa\u00e7\u00e3o de processos. Isso garante sistemas mais inteligentes e inclusivos.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Desde o filme \u201cEla\u201d (Her), dirigido por Spike Jonze e lan\u00e7ado em 2013, a ideia de um assistente de IA humanizado, capaz de interagir naturalmente por voz, tem fascinado muitas pessoas. Na trama, um homem se apaixona por uma IA chamada Samantha, que, apesar de parecer extremamente real, nunca ser\u00e1 verdadeiramente humana. Doze anos depois,<\/p>\n","protected":false},"author":5,"featured_media":2842,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[281],"tags":[],"class_list":["post-2840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What\u2019s behind AI text understanding? - NextAge<\/title>\n<meta name=\"description\" content=\"Explore AI text understanding and processing of human language. 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