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The Impact of Social Class on NLP Performance


Conceitos essenciais
The author argues that social class significantly affects the performance of NLP systems, highlighting disparities and advocating for more inclusive language technologies.
Resumo

The content explores how social class influences language production and perception, emphasizing the need for NLP to consider socioeconomic status. It presents empirical evidence from a dataset of 95K utterances, revealing performance disparities based on socioeconomic class, ethnicity, and geographical differences. The study delves into lexical analysis, speech recognition, language modeling, and grammar correction to demonstrate the impact of social class on NLP tools.

Key points include:

  • Historical background on social stratification in language by Labov.
  • Analysis of linguistic markers of social class.
  • Empirical study using a dataset of TV shows and movies annotated for demographics.
  • Findings showing correlations between social class and NLP performance metrics.
  • Discussion on ethical considerations and limitations of the study.
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Estatísticas
We annotate a corpus of 95K utterances from movies with social class, ethnicity, and geographical language variety. Our dataset contains 95K utterances from 19 TV shows and movies. Mean perplexity values per model: Mistral-7B (205.585), Zephyr-7B (302.057), Llama 2 (189.804). Percentage of sentences corrected by models: T5 Grammar Correction (19.76%), CoEdit-large (35.94%), Flan-T5 (66.42%).
Citações
"We show empirically that NLP disadvantages less-privileged socioeconomic groups." "Our findings highlight an important lack of flexibility of NLP tools." "Social class should be carefully considered as a variable in NLP."

Principais Insights Extraídos De

by Amanda Cerca... às arxiv.org 03-08-2024

https://arxiv.org/pdf/2403.04445.pdf
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Perguntas Mais Profundas

How can NLP systems be improved to accommodate all language varieties?

To improve NLP systems' accommodation of all language varieties, several strategies can be implemented. Firstly, researchers and developers should prioritize diversity in training data by including a wide range of socio-economic backgrounds, ethnicities, dialects, and regional variations. This diverse dataset will help the models learn and understand the nuances present in different languages. Secondly, incorporating sociolinguistic factors such as social class markers into the design of NLP algorithms is crucial. By considering how language use varies across different socio-economic groups, NLP systems can better capture the richness and complexity of human communication. Furthermore, developing more robust evaluation metrics that account for linguistic diversity is essential. Traditional benchmarks often focus on standard forms of language which may not accurately reflect real-world linguistic variation. By creating new evaluation frameworks that consider multiple language varieties, researchers can ensure that NLP models are tested comprehensively. Lastly, promoting transparency and accountability in algorithm development is key. Researchers should document the demographic characteristics of their datasets and model performance across various groups to identify biases or disparities. This transparency will help address any shortcomings in current NLP technologies and drive improvements towards more inclusive systems.

What are the implications of overlooking socioeconomic status in language technologies?

Overlooking socioeconomic status in language technologies has significant implications for equity and fairness in access to these tools. When socio-economic factors are not considered in NLP systems, there is a risk of perpetuating existing inequalities by favoring certain linguistic norms associated with higher social classes. One implication is that individuals from lower socio-economic backgrounds may face barriers when interacting with technology due to differences in speech patterns or vocabulary usage not accounted for by the system. This could lead to exclusion or discrimination against marginalized groups who do not conform to dominant linguistic standards. Moreover, ignoring socioeconomic status hinders the accuracy and effectiveness of NLP applications across diverse populations. Language models trained on limited data fail to capture the full spectrum of linguistic variation present within society, resulting in biased outcomes that disadvantage certain groups over others. In essence, overlooking socioeconomic status undermines inclusivity and representation within language technologies while reinforcing systemic inequalities based on social class.

How can researchers ensure fair representation across different socio-economic backgrounds in future studies?

Researchers can take proactive steps to ensure fair representation across different socio-economic backgrounds in future studies related to language technologies: Diverse Dataset Collection: Collecting datasets that encompass a wide range of socio-economic statuses ensures adequate representation during model training. Ethical Considerations: Adhering strictly to ethical guidelines when collecting data from participants belonging to various economic strata helps protect privacy rights. Transparency & Reporting: Transparently reporting on dataset demographics including information about participants' social class allows for scrutiny regarding bias detection. 4 .Intersectional Analysis: Conducting intersectional analyses considering multiple demographic variables (e.g., race/ethnicity along with SES) provides a comprehensive understanding. 5 .Bias Mitigation Strategies: Implementing bias mitigation techniques during model development helps counteract potential disparities arising from unbalanced representations among different societal segments. By implementing these practices rigorously throughout research processes involving sociolinguistics or natural language processing fields ensures equitable treatment regardless of an individual's economic background or social standing
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