Do you want to publish a course? Click here

Context Sensitivity Estimation in Toxicity Detection

تقدير حساسية السياق في اكتشاف السمية

154   0   0   0.0 ( 0 )
 Publication date 2021
and research's language is English
 Created by Shamra Editor




Ask ChatGPT about the research

User posts whose perceived toxicity depends on the conversational context are rare in current toxicity detection datasets. Hence, toxicity detectors trained on current datasets will also disregard context, making the detection of context-sensitive toxicity a lot harder when it occurs. We constructed and publicly release a dataset of 10k posts with two kinds of toxicity labels per post, obtained from annotators who considered (i) both the current post and the previous one as context, or (ii) only the current post. We introduce a new task, context-sensitivity estimation, which aims to identify posts whose perceived toxicity changes if the context (previous post) is also considered. Using the new dataset, we show that systems can be developed for this task. Such systems could be used to enhance toxicity detection datasets with more context-dependent posts or to suggest when moderators should consider the parent posts, which may not always be necessary and may introduce additional costs.

References used
https://aclanthology.org/
rate research

Read More

The aim of this research is to study of detection sensitivity in optical preamplifier, which is used as a first stage in optical receivers. This subject is important because it is used in laser rangefinders. The parameters that affect the distance measurement using time of flight technique are studied in details. Then, noise analysis and signal to noise ratio calculation are performed in preamplifiers to detect a signal with pulse width of 30ns using Matlab. The study results are applied to some preamplifiers to determine the minimum detectable power.
The task of Event Detection (ED) in Information Extraction aims to recognize and classify trigger words of events in text. The recent progress has featured advanced transformer-based language models (e.g., BERT) as a critical component in state-of-th e-art models for ED. However, the length limit for input texts is a barrier for such ED models as they cannot encode long-range document-level context that has been shown to be beneficial for ED. To address this issue, we propose a novel method to model document-level context for ED that dynamically selects relevant sentences in the document for the event prediction of the target sentence. The target sentence will be then augmented with the selected sentences and consumed entirely by transformer-based language models for improved representation learning for ED. To this end, the REINFORCE algorithm is employed to train the relevant sentence selection for ED. Several information types are then introduced to form the reward function for the training process, including ED performance, sentence similarity, and discourse relations. Our extensive experiments on multiple benchmark datasets reveal the effectiveness of the proposed model, leading to new state-of-the-art performance.
For voice assistants like Alexa, Google Assistant, and Siri, correctly interpreting users' intentions is of utmost importance. However, users sometimes experience friction with these assistants, caused by errors from different system components or us er errors such as slips of the tongue. Users tend to rephrase their queries until they get a satisfactory response. Rephrase detection is used to identify the rephrases and has long been treated as a task with pairwise input, which does not fully utilize the contextual information (e.g. users' implicit feedback). To this end, we propose a contextual rephrase detection model ContReph to automatically identify rephrases from multi-turn dialogues. We showcase how to leverage the dialogue context and user-agent interaction signals, including the user's implicit feedback and the time gap between different turns, which can help significantly outperform the pairwise rephrase detection models.
Ad hoc abbreviations are commonly found in informal communication channels that favor shorter messages. We consider the task of reversing these abbreviations in context to recover normalized, expanded versions of abbreviated messages. The problem is related to, but distinct from, spelling correction, as ad hoc abbreviations are intentional and can involve more substantial differences from the original words. Ad hoc abbreviations are also productively generated on-the-fly, so they cannot be resolved solely by dictionary lookup. We generate a large, open-source data set of ad hoc abbreviations. This data is used to study abbreviation strategies and to develop two strong baselines for abbreviation expansion.
Several appearances were assigned in duodenum during endoscopy in patients with celiac disease, this study was conducted to determine the diagnostic value of some endoscopic markers in celiac patients in order to be used in the clinical diagnosis of the disease an additional factor supporting the diagnosis. The study included 504 children reviewed the different symptoms (failure to thrive, chronic diarrhea or constipation, unexplained anemia, weight loss), and underwent an upper gastrointestinal endoscopy. Four markers were evaluated in the second and third part of the duodenum are: scalloping, reduction of duodenal folds, nodular mucosal pattern, and chronic inflammation (punctate whitish spots) . Celiac disease was diagnosed at 123 patients, which was based on the result of the pathology biopsy taken during endoscopy, the patients ranged in age from 6 months to 15 years. Scalloping was the highest sensitivity and specificity marker of 89% ,96 % respectively. Diagnostic values for these signs in general ( 91% sensitivity, 76% specific, positive predictive value 56 %, and negative predictive value 97% ). We observed that the presence of celiac disease, as well as histological grade rating by Marsh classification respect to the existence of endoscopic markers.

suggested questions

comments
Fetching comments Fetching comments
Sign in to be able to follow your search criteria
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا