Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userA Unified Span-Based Approach for Opinion Mining with Syntactic Constituents
نهج تم توزيعه
255
0 0
0.0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
حقق تعدين الرأي الرأي الدقيق (OM) جاذبية متزايدة في مجتمع معالجة اللغات الطبيعية (NLP)، والتي تهدف إلى إيجاد هياكل الرأي التي عبرت عن آرائها تجاه ما "في جملة واحدة. في هذا العمل، بدافع من تمثيلها المستندة إلى تعبيرات الرأي والأدوار، نقترح نهجا موحدا قائما على إعداد OM في نهاية إلى نهاية. علاوة على ذلك، مستوحاة من الشكليات الموحدة المستندة المستندة إلى OM و EM و Constitioning، نستكشف طريقتين مختلفتين (التعلم متعدد المهام والشبكة العصبية التنافيلية) لإدماج مكونات النحوية في النموذج المقترح للمساعدة OM. نحن نقوم بإجراء تجارب على DataSet MPQA 2.0 شائع الاستخدام. تظهر النتائج التجريبية أن نهجنا المقرر أن يحقق النهج المستند إليه التحسينات المهمة على الأعمال السابقة في درجة F1 الدقيقة ويقلل من عدد تعبيرات الرأي والأدوار المتوقعة بشكل خاطئ، يظهر فعالية طريقتنا. بالإضافة إلى ذلك، فإن دمج الناخبين النحوي يحقق تحسينات واعدة على أساس الأساس القوي المعزز من خلال تمثيلات الكلمات السياقية.
Fine-grained opinion mining (OM) has achieved increasing attraction in the natural language processing (NLP) community, which aims to find the opinion structures of Who expressed what opinions towards what'' in one sentence. In this work, motivated by its span-based representations of opinion expressions and roles, we propose a unified span-based approach for the end-to-end OM setting. Furthermore, inspired by the unified span-based formalism of OM and constituent parsing, we explore two different methods (multi-task learning and graph convolutional neural network) to integrate syntactic constituents into the proposed model to help OM. We conduct experiments on the commonly used MPQA 2.0 dataset. The experimental results show that our proposed unified span-based approach achieves significant improvements over previous works in the exact F1 score and reduces the number of wrongly-predicted opinion expressions and roles, showing the effectiveness of our method. In addition, incorporating the syntactic constituents achieves promising improvements over the strong baseline enhanced by contextualized word representations.
References used
https://aclanthology.org/
rate research
Read More
In this paper, we address unsupervised chunking as a new task of syntactic structure induction, which is helpful for understanding the linguistic structures of human languages as well as processing low-resource languages. We propose a knowledge-trans
fer approach that heuristically induces chunk labels from state-of-the-art unsupervised parsing models; a hierarchical recurrent neural network (HRNN) learns from such induced chunk labels to smooth out the noise of the heuristics. Experiments show that our approach largely bridges the gap between supervised and unsupervised chunking.
سنتحدث في هذه الحلقة عن أليات البحث في غوغل مستخدمين استكشاف المعرفة داتا وتحسين الطريقة باستخدام المترادافات لمجال سيو (البحث الأمثلي)
In this tutorial, we will show where we are and where we will be to those researchers interested in this topic. We divide this tutorial into three parts, including coarse-grained financial opinion mining, fine-grained financial opinion mining, and po
ssible research directions. This tutorial starts by introducing the components in a financial opinion proposed in our research agenda and summarizes their related studies. We also highlight the task of mining customers' opinions toward financial services in the FinTech industry, and compare them with usual opinions. Several potential research questions will be addressed. We hope the audiences of this tutorial will gain an overview of financial opinion mining and figure out their research directions.
Multilingual and cross-lingual Semantic Role Labeling (SRL) have recently garnered increasing attention as multilingual text representation techniques have become more effective and widely available. While recent work has attained growing success, re
sults on gold multilingual benchmarks are still not easily comparable across languages, making it difficult to grasp where we stand. For example, in CoNLL-2009, the standard benchmark for multilingual SRL, language-to-language comparisons are affected by the fact that each language has its own dataset which differs from the others in size, domains, sets of labels and annotation guidelines. In this paper, we address this issue and propose UniteD-SRL, a new benchmark for multilingual and cross-lingual, span- and dependency-based SRL. UniteD-SRL provides expert-curated parallel annotations using a common predicate-argument structure inventory, allowing direct comparisons across languages and encouraging studies on cross-lingual transfer in SRL. We release UniteD-SRL v1.0 at https://github.com/SapienzaNLP/united-srl.
Post processing is the most conventional approach for correcting errors that are caused by Optical Character Recognition(OCR) systems. Two steps are usually taken to correct OCR errors: detection and corrections. For the first task, supervised machin
e learning methods have shown state-of-the-art performances. Previously proposed approaches have focused most prominently on combining lexical, contextual and statistical features for detecting errors. In this study, we report a novel system to error detection which is based merely on the n-gram counts of a candidate token. In addition to being simple and computationally less expensive, our proposed system beats previous systems reported in the ICDAR2019 competition on OCR-error detection with notable margins. We achieved state-of-the-art F1-scores for eight out of the ten involved European languages. The maximum improvement is for Spanish which improved from 0.69 to 0.90, and the minimum for Polish from 0.82 to 0.84.
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
