Results 111 to 120 of about 379,431 (345)

Various Approaches to Aspect-based Sentiment Analysis

, 2018
The problem of aspect-based sentiment analysis deals with classifying sentiments (negative, neutral, positive) for a given aspect in a sentence. A traditional sentiment classification task involves treating the entire sentence as a text document and classifying sentiments based on all the words.
Bhoi, Amlaan, Joshi, Sandeep
openaire   +2 more sources

The Role of Theoretical Calculations for INVEST Systems: Complementarity Between Theory and Experiments and Rationalization of the Results

Advanced Optical Materials, EarlyView.
Theoretical lessons are key for molecules presenting an inverted singlet‐triplet excited state (e.g. S1 and T1) energy difference. This perspective provides a snapshot of the role played by calculations in last years, not only to anticipate experimental findings but also for driving high‐throughput virtual screenings, as well as the main challenge to ...
Ángel José Pérez‐Jiménez, Yoann Olivier, Juan Carlos Sancho‐García   +2 more
wiley   +1 more source

Aspect-Level Sentiment Analysis through Aspect-Oriented Features

HighTech and Innovation Journal
Aspect-level sentiment analysis is essential for businesses to comprehend sentiment polarities associated with various aspects within unstructured texts.
Mikail Bin Muhammad Azman Busst, Kalaiarasi Sonai Muthu Anbananthen, Subarmaniam Kannan   +2 more
doaj   +1 more source

Revealing the True Nature of Double‐Peak Emission in 2D Perovskite Single Crystals Using Polariton Waveguides

Advanced Optical Materials, EarlyView.
Engineering structural distortion in Dion–Jacobson perovskites allows control over optical properties and electronic band structure, unveiling new structure‐property insights. Crystal microwires act as waveguides with strong light‐matter coupling, explaining the double peak emission.
Annalisa Coriolano, Anna Moliterni, Francesco Todisco, Laura Polimeno, Rosanna Mastria, Vincent Olieric, Carlotta Giacobbe, Milena De Giorgi, Dario Ballarini, Aurora Rizzo, Giuseppe Gigli, Cinzia Giannini, Ilenia Viola, Daniele Sanvitto, Luisa De Marco   +14 more
wiley   +1 more source

Multi-prompt Learning Based Aspect-Category Sentiment Analysis [PDF]

Jisuanji kexue yu tansuo
Aspect-category sentiment analysis (ACSA) aims to discern aspect categories in review texts and simultaneously predict their sentiment polarity. It is an important fine-grained subtask in the field of sentiment analysis.
LIU Jinhang, LI Lin, WU Renwei, LIU Jia
doaj   +1 more source

Extreme Terahertz Nonlinearity of AlGaN/GaN‐Based Grating‐Gate Plasmonic Crystals

Advanced Optical Materials, EarlyView.
Plasmonic crystals based on grating‐gated 2D electron gas in AlGaN/GaN heterostructures provide a platform for strong light‐matter interaction. Pump‐probe experiments revealed strong terahertz nonlinearity leading to 45% increase in transmission at a fluence below 350 nJ cm−2.
Pavlo Sai, Vadym V. Korotyeyev, Dmytro B. But, Maksym Dub, Dmitriy Yavorskiy, Jerzy Łusakowski, Mateusz Słowikowski, Serhii Kukhtaruk, Yurii Liashchuk, Jeong Woo Han, Christoph Böttger, Alexej Pashkin, Stephan Winnerl, Wojciech Knap, Martin Mittendorff   +14 more
wiley   +1 more source

A Technical Review of the State-of-the-Art Methods in Aspect-Based Sentiment Analysis

Journal of Computing Theories and Applications
With the advent and rapid advancement of text mining technology, a computer-based approach used to capture sentiment standpoints from data in textual form is increasingly becoming a promising field.
Kabir Kasum Yusuf, E. Ogbuju, Taiwo Abiodun, Francisca Oladipo   +3 more
semanticscholar   +1 more source

Fabrication Optimization of van der Waals Metasurfaces: Inverse Patterning Boosts Resonance Quality Factor

Advanced Optical Materials, EarlyView.
An optimized fabrication approach for the nanostructuring of optical metasurfaces from van der Waals materials like hexagonal boron nitride is presented. The resonator geometries show enhanced geometric homogeneity, resulting in a significant increase in quality factors of symmetry‐protected bound states in the continuum resonances.
Jonas Biechteler, Connor Heimig, Thomas Weber, Dmytro Gryb, Luca Sortino, Stefan A. Maier, Leonardo de S. Menezes, Andreas Tittl   +7 more
wiley   +1 more source

Aspect Based Sentiment Analysis On Review Data

, 2019
With proliferation of user-generated reviews, new opportunities and challenges arise. The advance of Web technologies allows people to access a large amount of reviews of products and services online. Knowing what others like and dislike becomes increasingly important for their decision making in online shopping.
openaire   +4 more sources

A Comprehensive Survey on Aspect Based Sentiment Analysis

, 2020
Aspect Based Sentiment Analysis (ABSA) is the sub-field of Natural Language Processing that deals with essentially splitting our data into aspects ad finally extracting the sentiment information. ABSA is known to provide more information about the context than general sentiment analysis.
openaire   +2 more sources