Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userUnderstanding Model Robustness to User-generated Noisy Texts
فهم نموذج متواضع للنصوص الناتجة عن المستخدم
487
0 0
0.0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
من المعروف أن حساسية النماذج العميقة العصبية لضوضاء الإدخال مشكلة صعبة.في NLP، يتدهور أداء النموذج غالبا مع الضوضاء التي تحدث بشكل طبيعي، مثل الأخطاء الإملائية.لتخفيف هذه المشكلة، قد تستفيد النماذج البيانات الوكيل بشكل مصطنع.ومع ذلك، تم تحديد كمية ونوع الضوضاء التي تم إنشاؤها حتى الآن بشكل تعسفي.لذلك نقترح نموذج الأخطاء الإحصائية من كورسا - تصحيح الأخطاء النحوية.نقدم تقييم شامل للعديد من متواك أنظمة NLP الحديثة لغات متعددة، مع المهام بما في ذلك التحليل المورفو النحوي، التعرف على الكيان المسمى، الترجمة الآلية العصبية، مجموعة فرعية من مرجع الغراء والفهم القراءة.نحن نقارن أيضا مناهضين لمعالجة انخفاض الأداء: أ) تدريب نماذج NLP مع البيانات الوكيل التي تم إنشاؤها بواسطة إطار عملائنا؛و ب) تقليل ضوضاء الإدخال بالنظام الخارجي لتصحيح اللغة الطبيعية.يتم إصدار الرمز في https://github.com/ufal/kazitext.
Sensitivity of deep-neural models to input noise is known to be a challenging problem. In NLP, model performance often deteriorates with naturally occurring noise, such as spelling errors. To mitigate this issue, models may leverage artificially noised data. However, the amount and type of generated noise has so far been determined arbitrarily. We therefore propose to model the errors statistically from grammatical-error-correction corpora. We present a thorough evaluation of several state-of-the-art NLP systems' robustness in multiple languages, with tasks including morpho-syntactic analysis, named entity recognition, neural machine translation, a subset of the GLUE benchmark and reading comprehension. We also compare two approaches to address the performance drop: a) training the NLP models with noised data generated by our framework; and b) reducing the input noise with external system for natural language correction. The code is released at https://github.com/ufal/kazitext.
References used
https://aclanthology.org/
rate research
Read More
User-generated texts include various types of stylistic properties, or noises. Such texts are not properly processed by existing morpheme analyzers or language models based on formal texts such as encyclopedias or news articles. In this paper, we pro
pose a simple morphologically tight-fitting tokenizer (K-MT) that can better process proper nouns, coinages, and internet slang among other types of noise in Korean user-generated texts. We tested our tokenizer by performing classification tasks on Korean user-generated movie reviews and hate speech datasets, and the Korean Named Entity Recognition dataset. Through our tests, we found that K-MT is better fit to process internet slangs, proper nouns, and coinages, compared to a morpheme analyzer and a character-level WordPiece tokenizer.
With the increasing use of machine-learning driven algorithmic judgements, it is critical to develop models that are robust to evolving or manipulated inputs. We propose an extensive analysis of model robustness against linguistic variation in the se
tting of deceptive news detection, an important task in the context of misinformation spread online. We consider two prediction tasks and compare three state-of-the-art embeddings to highlight consistent trends in model performance, high confidence misclassifications, and high impact failures. By measuring the effectiveness of adversarial defense strategies and evaluating model susceptibility to adversarial attacks using character- and word-perturbed text, we find that character or mixed ensemble models are the most effective defenses and that character perturbation-based attack tactics are more successful.
As hate speech spreads on social media and online communities, research continues to work on its automatic detection. Recently, recognition performance has been increasing thanks to advances in deep learning and the integration of user features. This
work investigates the effects that such features can have on a detection model. Unlike previous research, we show that simple performance comparison does not expose the full impact of including contextual- and user information. By leveraging explainability techniques, we show (1) that user features play a role in the model's decision and (2) how they affect the feature space learned by the model. Besides revealing that---and also illustrating why---user features are the reason for performance gains, we show how such techniques can be combined to better understand the model and to detect unintended bias.
Neural generative dialogue agents have shown an increasing ability to hold short chitchat conversations, when evaluated by crowdworkers in controlled settings. However, their performance in real-life deployment -- talking to intrinsically-motivated u
sers in noisy environments -- is less well-explored. In this paper, we perform a detailed case study of a neural generative model deployed as part of Chirpy Cardinal, an Alexa Prize socialbot. We find that unclear user utterances are a major source of generative errors such as ignoring, hallucination, unclearness and repetition. However, even in unambiguous contexts the model frequently makes reasoning errors. Though users express dissatisfaction in correlation with these errors, certain dissatisfaction types (such as offensiveness and privacy objections) depend on additional factors -- such as the user's personal attitudes, and prior unaddressed dissatisfaction in the conversation. Finally, we show that dissatisfied user utterances can be used as a semi-supervised learning signal to improve the dialogue system. We train a model to predict next-turn dissatisfaction, and show through human evaluation that as a ranking function, it selects higher-quality neural-generated utterances.
WARNING: This article contains contents that may offend the readers. Strategies that insert intentional noise into text when posting it are commonly observed in the online space, and sometimes they aim to let only certain community users understand t
he genuine semantics. In this paper, we explore the purpose of such actions by categorizing them into tricks, memes, fillers, and codes, and organize the linguistic strategies that are used for each purpose. Through this, we identify that such strategies can be conducted by authors for multiple purposes, regarding the presence of stakeholders such as Peers' and Others'. We finally analyze how these strategies appear differently in each circumstance, along with the unified taxonomy accompanying examples.
suggested questions
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
