Sentiment (supervised polarity classification) and topic analysis of LastQuake app user's comments - Aegean 2020 earthquake

This database contains the sentiment analysis (SA) and topic
supervised classification of the comments posted by LastQuake app users related
to the 30th October 2020 Aegean earthquake. LastQuake app is a crowdsource-based earthquake information app
that allows eyewitnesses to share information about the earthquakes that they
felt, combined with seismic data. This app was developed by the
European-Mediterranean Seismological Centre (EMSC). Attributes and data
contained in the database are:

§ eq_evid :
Number of the earthquake the comment is associated with

§ eq_mag :
magnitude of the event

§ eq_t0 :
Origin time (UTC)

§ intensity:
felt report intensity (as before leaving a comment users must leave a felt
report)

§ epidist :
distance from the event of the comment, in km

§ dt :
response time from the origin time of the associated event, in seconds

§ rate_pos :
number of positive rates *

§ rate_neg :
number of negative rates*

§ device :
device from which the comment was left (desktop, mobile ou app)

§ comm_valid
: 0 or 1 depending on if we validated the comment or not. We invalidate
comments when we consider them inappropriate (violence, insults,...)

§ language:
Original language on which the comment was written

§ polarity:
Polarity on which the comment is classified, i.e. positive, negative, neutral

§ topic:
Main topic addressed in the comment, i.e. building damages, tsunami effects,
geotechnical effects, lifelines affected, emergency response, solidarity
messages, preparedness, seismic information, intensity and unrealted.

§ comment:
comment posted by LastQuake app user translated to English

本数据库收录了与2020年10月30日爱琴海地震相关的评论的情感分析（SA）及主题监督分类。LastQuake应用是一款基于众包的地震信息应用，允许目击者分享他们所感受到的地震信息，并配合地震数据进行整合。该应用由欧洲-地中海地震中心（EMSC）开发。数据库中包含的属性和数据有：

§ eq_evid：与评论关联的地震编号
§ eq_mag：事件震级
§ eq_t0：震源时间（UTC时间标准
§ intensity：感受到的报道强度（用户在留言前必须留下感受到的报告强度
§ epidist：评论事件距离，单位为千米
§ dt：从关联事件震源时间起算的响应时间，单位为秒
§ rate_pos：正面评分数量
§ rate_neg：负面评分数量
§ device：发表评论的设备（桌面、移动或应用
§ comm_valid：0或1，表示是否验证了评论。我们认为不适当的评论（如暴力、侮辱等）将予以无效
§ language：评论所写的原始语言
§ polarity：评论分类的极性，即正面、负面、中性
§ topic：评论中涉及的主要主题，例如建筑损坏、海啸影响、岩土工程影响、生命线受影响、应急响应、团结信息、准备情况、地震信息、强度及无关主题
§ comment：由LastQuake应用用户发表的评论，已翻译成英语