CN106897400A - The method for visualizing and system of earthquake information in a kind of network social intercourse media - Google Patents
The method for visualizing and system of earthquake information in a kind of network social intercourse media Download PDFInfo
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Abstract
The method for visualizing and system of earthquake information in a kind of network social intercourse media of offer of the invention, including the keywords database for creating the rescue information of time period after description respectively is shaken the preceding macroscopic abnormity of earthquake information of time period, the earthquake earthquake situations information of earthquake centre time period and shaken；Different time sections and the keywords database before and after being occurred based on earthquake, are classified to network social intercourse media data, obtain the network social intercourse media data set of correspondence different time sections；Respective unit observation cycle is set to each network social intercourse media data set, based on issuing time information, location information and unit observation cycle, the spatial centroid position of constituent parts observation cycle is obtained, and show on map.Dissipated instant invention overcomes wide to the overlay area of earthquake information in the prior art, be not concerned with the drawbacks of emphasis and degree of accuracy, concentration illustrates the space-time transition of earthquake information.
Description
Technical field
The present invention relates to earthquake information displaying field, more particularly, in network social intercourse media earthquake information it is visual
Change method and system.
Background technology
When earthquake occurs, the public is often closed by the location-based network social intercourse media releasing such as network social intercourse media
In the information of earthquake disaster.A large amount of related datas on earthquake disaster are by location-based network societies such as network social intercourse media
Hand over media to be propagated, this kind of data have interactivity, real-time, it is social the features such as, and imply a large amount of valuable
Information, and in the burst natural calamity such as earthquake, the propagation of these information to the objectively responding of the condition of a disaster, smoothly carry out disaster and rescue
Help, dredge disaster area mass psychology pressure, stable society all there is vital effect.
Now with network social intercourse media data, earthquake disaster information is researched and analysed, mainly from the angle of dissemination
Degree, studies disaster information propagation characteristic and public sentiment monitoring.And with based on position service function by network social intercourse matchmaker
Body extensive use, with reference to data mining and the analysis of the geographical location information in network social intercourse media and data message, not only may be used
To be more accurately analyzed to earthquake disaster information dissemination, the observation more with public's angle to earthquake disaster provides weight
The information supplement wanted.
2010, Sakaki et al. carried out the big of the events such as earthquake, typhoon and its generation using the geography information pushed away in spy
Cause the detection in region.2015, the location-based Seismic net social media information such as Xu Jinghai established earthquake disaster classification
Table, and anti-metric space interpolation method is utilized, the condition of a disaster information analysis has been carried out to earthquake disaster overlay area.
Inventor realize it is of the invention during find, for the geological data in location-based network social intercourse media
The excavation of data still suffers from some problems with analysis：
1st, only rely on keyword and divide earthquake information classification, when its result may mix different before and after earthquake disaster occurs
Between the stage information；
2nd, the information after data mining analysis occur for earthquake disaster, without by earthquake macroscopic view interior for the previous period
Observation is included in reflection of the abnormal conditions on network social intercourse media；
3rd, the earthquake information of location-based network social intercourse media issues into discrete point distribution, usual overlay area it is wide and
Dissipate, and often show obvious skewness, the earthquake information of location-based network social intercourse media is only relied on, by information
Point interpolation is calculated, it is difficult to obtain accurate planar result, especially larger in the big region degree of accuracy difference of information point density difference.
The content of the invention
The present invention provides a kind of in overcoming above mentioned problem or the network social intercourse media that solve the above problems at least in part
The good system of the method for visualizing of earthquake information.
According to an aspect of the present invention, there is provided the method for visualizing of earthquake information in a kind of network social intercourse media, including：
S1, the macroscopic abnormity of earthquake information, the earthquake earthquake situations information of earthquake centre time period that are respectively created the time period before description shake
And shake after the time period rescue information keywords database；
S2, based on earthquake occur before and after different time sections and the keywords database, network social intercourse media data is carried out
Classification, obtains the network social intercourse media data set of correspondence different time sections；
S3, respective unit observation cycle is set to each network social intercourse media data set, based on issuing time information, fixed
Position information and unit observation cycle, obtain the spatial centroid position of constituent parts observation cycle, and show on map；
Wherein, the positioning comprising earthquake information, issuing time information and publisher is believed in the network social intercourse media data
Breath.
According to another aspect of the present invention, there is provided the visualization system of earthquake information in a kind of network social intercourse media, wrap
Include：
Keyword library module, macroscopic abnormity of earthquake information, earthquake centre time period for creating the preceding time period of description shake respectively
Earthquake earthquake situations information and shake after the time period rescue information keywords database；
Sort module, different time sections and the keywords database before and after being occurred based on earthquake, to network social intercourse media number
According to being classified, the network social intercourse media data set of correspondence different time sections is obtained；
Display module, for setting respective unit observation cycle to each network social intercourse media data set, based on issue
Temporal information, location information and unit observation cycle, obtain the spatial centroid position of constituent parts observation cycle, and opened up on map
Show；
Wherein, the positioning comprising earthquake information, issuing time information and publisher is believed in the network social intercourse media data
Breath.
The application proposes the method for visualizing and system of earthquake information in a kind of network social intercourse media, by with network social intercourse
Media are carrier, and sensor is perceived as with the public, by earthquake Macroscopic Anomalies situation interior for the previous period in network social intercourse media
On reflection include seismological observation, for earthquake disaster prevention disaster reduction research provide Macroscopic Anomalies big data significant data source；
Earthquake information is classified by combining different time sections and keyword, its classification results connotation is pointed to clearly, is preferably arranged
Except mixing for earthquake disaster different time session information；All types of earthquake informations are calculated in phase by application space center of gravity model
The spatial centroid position in unit observation cycle is answered, the temporal-spatial evolution process of earthquake information is illustrated on map, reflect earthquake
Position of centre of gravity of the disaster region to the network social intercourse media subscriber colony of different type earthquake information and its evolution with the time.
Brief description of the drawings
Fig. 1 is that the flow of the method for visualizing of earthquake information in network social intercourse media according to the embodiment of the present invention is illustrated
Figure；
Fig. 2 be the Ya'an Sichuan province earthquake obtained according to the embodiment of the present invention shake before time earthquake information spatial centroid point
Cloth trajectory diagram；
Fig. 3 be the Yunnan Yiliang earthquake obtained according to the embodiment of the present invention shake before time earthquake information spatial centroid point
Cloth trajectory diagram.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail.Hereinafter implement
Example is not limited to the scope of the present invention for illustrating the present invention.
Only rely in the prior art keyword to divide earthquake information classification to overcome, ignore before and after earthquake disaster occurs not
With the skew of the information attention emphasis of time period so that geological data is excavated and the inaccurate problem of exhibition information, the present invention is carried
A kind of method for visualizing of earthquake information in network social intercourse media is supplied.
Fig. 1 shows that the flow of the method for visualizing of earthquake information in the network social intercourse media of the embodiment of the present invention is illustrated
Figure, as shown in Figure 1, this method includes：
S1, the macroscopic abnormity of earthquake information, the earthquake earthquake situations information of earthquake centre time period that create the time period before description shake respectively
And shake after the time period rescue information keywords database.
S2, based on earthquake occur before and after different time sections and the keywords database, network social intercourse media data is carried out
Classification, obtains the network social intercourse media data set of correspondence different time sections.
S3, respective unit observation cycle is set to each network social intercourse media data set, based on issuing time information, fixed
Position information and unit observation cycle, obtain the spatial centroid position of constituent parts observation cycle, and show on map；
Wherein, the positioning comprising earthquake information, issuing time information and publisher is believed in the network social intercourse media data
Breath.
Spatial centroid position by calculating the network social intercourse media of different time of the invention, it is right in the prior art to overcome
The overlay area of earthquake information extensively dissipates, and is not concerned with the drawbacks of emphasis and degree of accuracy, and concentration illustrates the space-time of earthquake information
Transition, it is very clear.
Network social intercourse media include microblogging, mhkc and media etc. Renren Network, and user can at any time in network social intercourse matchmaker
New information is issued on body, network social intercourse media data is the data content of network social intercourse media, by word and punctuation mark group
Into, limited with maximum character, therefore each network social intercourse media are required for that complete, weight is depicted with as far as possible brief language
The information wanted, is very suitable for carrying out big data analysis.
Earthquake information is the network social intercourse media and includes keyword " earthquake ", for example：Certain network social intercourse media
Content is " today occurs earthquake ", or " earthquake just now, someone has felt" etc., belong to earthquake information.
Each network social intercourse media all include issuing time information, but be not each network social intercourse media all
Location information containing publisher, location information refers to publisher when network social intercourse media are sent, by current location and network
The information that social media content is shown together, the present invention only collects the network social intercourse media data containing location information.
In one embodiment, the step S1 also includes：
Time of origin based on earthquake, is respectively provided with time period, earthquake centre time period and time period after shake before shake.
Macroscopic Anomalies situation generally occurs before occurring due to earthquake, hair is likely to when people has found Macroscopic Anomalies situation
The time period is conducive to the concentration in the future to the preceding information of shake to analyze before network social intercourse media, therefore setting shake, and the earthquake centre time period is then
When representing earthquake and just occurring, people are nervous, the perplexed time period, the network social intercourse that this period of time people send
Media may adjective, verb it is more, mood is more exciting, and phychology before shake is entirely different, and after shaking the time period then embody
People start to receive true, and the time period rescued earthquake-stricken area, in the time period, in network social intercourse media
It is more the positive information for reacting rescue to hold.
The present invention is by macroscopic abnormity of earthquake definition for the sense organ of people can be directly perceptible or be surveyed by simple survey tool
The anomaly of the relevant nature of the various and earthquake preparation measured, generation.
In one embodiment, the present invention is respectively created the abnormal information before reaction shake, the earthquake situations information in earthquake centre and shake
The keyword of rescue information afterwards.
In one embodiment, the step S2 includes：
S2.1, for any one network social intercourse media data, retrieve matching for entry that it contains and each keywords database
The match condition of situation and issuing time information and each time period；And
S2.2, network social intercourse media data is attributed to while matching the net of the time period and the keywords database of the time period
Network social media data acquisition system.
In one embodiment, the step S3 includes：
S3.1, respective unit observation cycle is set to different network social intercourse media data set, the unit observation
Cycle is integer with the time span ratio of corresponding time period.
Assuming that the shake preceding time period is earthquake to occur to amount to L days on the day of preceding and earthquake occurs, the earthquake centre time period is that earthquake occurs
M hours afterwards, the time period was M-N hours after the earthquake after shake, and the unit observation cycle for being respectively provided with the shake preceding time period is p days；
The unit observation cycle of earthquake centre time period is q hours；After shake the unit observation cycle of time period be r hours, and meet L/p,
M/q, (M-N)/r are positive integer, to ensure that unit observation cycle is evenly dividing time window just.
S3.2, to any one network social intercourse media data set, issuing time information is belonged into current one observation week
Network social intercourse media data in phase, based on the location information of the object of observation, obtains unit observation as object of observation
The spatial centroid position in cycle.
S3.3, based on the step S2.2, obtain sky of the all-network social media data set in constituent parts observation cycle
Between position of centre of gravity.
In one embodiment, the time period is occur preceding 30 to earthquake on the day of earthquake occurs before being shaken in the step S1.1
My god, the earthquake centre time period be earthquake occur the moment to 2 hours after the earthquake, and earthquake rescue golden period be 72 hours, earthquake is rescued
The propagation for helping information was also concentrated among this period, so, selection 2 hours after the earthquake to 72 hours is the time after shake
Section.
In one embodiment, the keyword of the abnormal information before reaction shake is as shown in table 1, including：Animal anomaly, underground
Water exception, meteorological anomaly, one kind or many in sound exception, the anomaly of plants, ground abnormal, electromagnetic anomaly and seismic cloud exception
Kind.
The keyword of the abnormal information before the shake of table 1
Earthquake earthquake situations refer to the situation of seismic activity and earthquake effect, it include earthquake occur time, place, earthquake magnitude,
Seismaesthesia situation, Felt range, reaction of people etc..
Generally, in the related network social intercourse media data information of earthquake earthquake situations, noun is used for expressing to magnitude and shake
The description of emotion condition, adjective has been often expressed as emotional attitude of the people to earthquake earthquake situations, for example, " fear ", " terrified " etc., move
Word is used for expressing impression of the social media user to earthquake in earthquake, for example, " shaking up ", " caving in " etc..
In one embodiment, the keyword of the earthquake situations information in earthquake centre is as shown in table 2, including：Seismaesthesia, earthquake magnitude, earthquake centre, shake
One or more in the verb in source, the adjective of expression people's mood and expression seismaesthesia.
The keyword of the earthquake situations information in the earthquake centre of table 2
Table 3 shows the keyword of the rescue information after shake.
The keyword of the rescue information after the shake of table 3
In one embodiment, the step S2.2 includes：
S2.2.1, annotation participle is carried out to any one network social intercourse media data, and mark the part of speech of each vocabulary；
S2.2.2, whether matched with each keywords database based on the participle in network social intercourse media data, obtain network society
Hand over the match condition of media data and keywords database；And
S2.2.3, based on whether each time period matching of issuing time information in network social intercourse media data, obtain network
Social media data and the match condition of time period.
If there is the complex form of Chinese characters in data message, can semantic participle be parsed to form difficulty, cause error result, so
The operation of FJZ must be carried out before semantic participle parsing, in one embodiment, is also wrapped before the step S2.2.1
Include：Network social intercourse media data containing Chinese-traditional is converted to the network social intercourse media data of simplified form of Chinese Character.
In one embodiment, the present invention is also labeled participle to special data content：Such as to user name, to punctuate accord with
Number indicated, URL and Email are indicated automatically；Forwarding content in social media carries out automatic segmentation sign.
In one embodiment, the present invention be to the participle of data by ICTCLAS Chinese automatic word-cuts, to user name,
The special text contents such as forwarding content, punctuation mark, URL and Email are labeled participle, in the participle dictionary in the system
In addition to prior art disclosed dictionary content, also including earthquake emergency field proper noun and cyberspeak, for example " in
World rescue team of state ", " China Seismology Bureau ", " basin friend ", so in participle, it is possible to which these words are divided into a word, and
Do not take apart, increased the accuracy of participle.
In one embodiment, the concept of spatial centroid, i.e. mean center.For multiple scattered geospatial objects,
It is represented by a series of average value of the geometric coordinate of spatial objects.Its basic calculating formula is
In formula, N is spatial object sum, and the number of network social intercourse media data, X are referred to hereiAnd YiIt is i-th space
The coordinate value of object,The as coordinate value of center of gravity.
The present invention also provides a kind of visualization system of earthquake information in network social intercourse media, including：
Keyword library module, macroscopic abnormity of earthquake information, earthquake centre time period for creating the preceding time period of description shake respectively
Earthquake earthquake situations information and shake after the time period rescue information keywords database；
Sort module, different time sections and the keywords database before and after being occurred based on earthquake, to network social intercourse media number
According to being classified, the network social intercourse media data set of correspondence different time sections is obtained；
Display module, for setting respective unit observation cycle to each network social intercourse media data set, based on issue
Temporal information, location information and unit observation cycle, obtain the spatial centroid position of constituent parts observation cycle, and opened up on map
Show；
Wherein, the positioning comprising earthquake information, issuing time information and publisher is believed in the network social intercourse media data
Breath.
In one embodiment, to the network social intercourse media data of Ya'an Sichuan province BEFORE AND AFTER EARTHQUAKE, based on of the invention
Method, obtains spatial centroid position, using GIS software, carries out spatial visualization, and focus point is labeled in into map
On, and by center of gravity line one by one, obtain motion track path.
Fig. 2 shows the space weight of time earthquake information before the shake of the Ya'an Sichuan province earthquake of acquisition according to embodiments of the present invention
Heart distribution trajectory figure, figure it is seen that the gravity motion track of macroscopic abnormity of earthquake is substantially assumed down " 8 " shape, and to shake
Middle direction skew, is distributed around in provincial capital Chengdu.The distribution of Population Gravity Center can be seen that Sichuan population Distribution Phenomena from figure
It is substantially uneven it is meagrely-populated because to the west of Chengdu based on high mountain, plateau, to the east of based on hills, be densely populatedly
Area, population distribution present Dong Mixi dredge the characteristics of.Economic median point is located at Ziyang City within the border, deviates to the west of Population Gravity Center, explanation
Generally higher than area in the east, the level of economic development is presented the low situation of Xi Gaodong to the GDP per capita of In West of Sichuan.
The center of gravity major part of Macroscopic Anomalies is distributed in the west of GDP centers of gravity and Population Gravity Center, illustrates right in network social intercourse media
The distribution of Macroscopic Anomalies concern is not that based on populous east, although western sparsely populated, people are to Macroscopic Anomalies
Attention rate it is higher.
With reference to Ya'an Sichuan province earthquake intensity figure, earthquake intensity rank is from IX-VI, it can be seen that the center of gravity major part of Macroscopic Anomalies falls on ground
Shake earthquake intensity is less than the region outside VI, i.e., in thoughts region, and distribution parallel with the long axis direction of earthquake intensity figure.
Angle in terms of GDP, population and earthquake intensity three is analyzed, and draws the gravity centre distribution of Macroscopic Anomalies in earthquake
Thoughts area distribution compares concentration, and misaligned with GDP centers of gravity and Population Gravity Center, is distributed to the west of GDP centers of gravity and Population Gravity Center,
And change center of gravity over time is also changing, kataseism direction skew, Chengdu is that developed area and population are inhaled
Attachedly, the size of population is a lot, and the attention rate to macroscopic abnormity of earthquake is larger, so center of gravity is distributed around in Chengdu, Er Qiecheng
City is in thoughts regional extent.
Fig. 3 shows the space weight of time earthquake information before the shake of the Yunnan Yiliang earthquake of acquisition according to embodiments of the present invention
Heart distribution trajectory figure, from figure 3, it can be seen that the gravity motion track of macroscopic abnormity of earthquake is substantially assumed down " 8 " shape, is saving
Meeting Kunming is distributed within the border.The distribution of Population Gravity Center substantially uneven, the people that can be seen that Yunnan Province's population distribution phenomenon from figure
The characteristics of mouth distribution presentation Dong Mixi is dredged.Economic median point almost overlaps with Population Gravity Center, i.e. the GDP per capita of western area of Yunnan Province is total
Less than area in the east on body, the level of economic development is presented situation high in the east and low in the west.Macroscopic Anomalies are paid close attention in network social intercourse media
Gravity centre distribution it is main occur in the area flourishing with Economic contrast of having a large population, Kunming is provincial capital, economically developed and be
Population absorption ground, the skew of kataseism direction, and the main distribution on earthquake intensity figure major axis extended line.
Finally, the present processes are only preferably embodiment, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in protection of the invention
Within the scope of.
Claims (10)
1. in a kind of network social intercourse media earthquake information method for visualizing, it is characterised in that including：
S1, create respectively description shake before the macroscopic abnormity of earthquake information of time period, the earthquake earthquake situations information of earthquake centre time period and
The keywords database of the rescue information of time period after shake；
S2, based on earthquake occur before and after different time sections and the keywords database, network social intercourse media data is classified,
Obtain the network social intercourse media data set of correspondence different time sections；
S3, respective unit observation cycle is set to each network social intercourse media data set, based on issuing time information, positioning letter
Breath and unit observation cycle, obtain the spatial centroid position of constituent parts observation cycle, and show on map；
Wherein, the location information comprising earthquake information, issuing time information and publisher in the network social intercourse media data.
2. method for visualizing as claimed in claim 1, it is characterised in that the step S1 also includes：
Time of origin based on earthquake, is respectively provided with time period, earthquake centre time period and time period after shake before the shake.
3. method for visualizing as claimed in claim 1, it is characterised in that macroscopic abnormity of earthquake information described in the step S1
Keywords database include statement animal anomaly, ground water anomaly, meteorological anomaly, sound exception, the anomaly of plants, ground extremely,
Electromagnetic anomaly and the abnormal vocabulary of seismic cloud.
4. method for visualizing as claimed in claim 1, it is characterised in that the pass of earthquake earthquake situations information described in the step S1
Keyword storehouse includes stating the verb of seismaesthesia, earthquake magnitude, earthquake centre, focus, the adjective of expression people's mood and expression seismaesthesia.
5. method for visualizing as claimed in claim 1, it is characterised in that the step S2 includes：
S2.1, for any one network social intercourse media data, retrieve the match condition of entry that it contains and each keywords database
And the match condition of issuing time information and each time period；And
S2.2, network social intercourse media data is attributed to while matching the network society of the time period and the keywords database of the time period
Hand over media data set.
6. method for visualizing as claimed in claim 1, it is characterised in that the step S3 includes：
S3.1, respective unit observation cycle, the unit observation cycle are set to different network social intercourse media data set
It is integer with the time span ratio of corresponding time period；
S3.2, to any one network social intercourse media data set, issuing time information is belonged in current one observation cycle
Network social intercourse media data as object of observation, based on the location information of the object of observation, obtain the unit observation cycle
Spatial centroid position；And
S2.3, based on the step S2.2, obtain space weight of the all-network social media data set in constituent parts observation cycle
Heart position.
7. method for visualizing as claimed in claim 2, it is characterised in that the time period is earthquake hair before being shaken in the step S1.1
It is the time after earthquake occurs the moment to 2 hours after the earthquake and shakes that the raw same day to earthquake occurs preceding 30 days, the earthquake centre time period
Section is 2 hours after the earthquake to 72 hours after the earthquake.
8. method for visualizing as claimed in claim 5, it is characterised in that the step S2.2 includes：
S2.2.1, annotation participle is carried out to any one network social intercourse media data, and mark the part of speech of each vocabulary；
S2.2.2, whether matched with each keywords database based on the participle in network social intercourse media data, obtain network social intercourse matchmaker
The match condition of volume data and keywords database；And
S2.2.3, based on whether each time period matching of issuing time information in network social intercourse media data, obtain network social intercourse
Media data and the match condition of time period.
9. method for visualizing as claimed in claim 7, it is characterised in that also include before the step S2.2.1：To contain
The network social intercourse media data of Chinese-traditional is converted to the network social intercourse media data of simplified form of Chinese Character.
10. in a kind of network social intercourse media earthquake information visualization system, it is characterised in that including：
Keyword library module, macroscopic abnormity of earthquake information, the ground of earthquake centre time period for creating the preceding time period of description shake respectively
The keywords database of the rescue information of time period after shake earthquake situations information and shake；
Sort module, different time sections and the keywords database before and after being occurred based on earthquake, is entered to network social intercourse media data
Row classification, obtains the network social intercourse media data set of correspondence different time sections；
Display module, for setting respective unit observation cycle to each network social intercourse media data set, based on issuing time
Information, location information and unit observation cycle, obtain the spatial centroid position of constituent parts observation cycle, and show on map；
Wherein, the location information comprising earthquake information, issuing time information and publisher in the network social intercourse media data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710074322.4A CN106897400B (en) | 2017-02-10 | 2017-02-10 | Visualization method and system for seismic information in social networking media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710074322.4A CN106897400B (en) | 2017-02-10 | 2017-02-10 | Visualization method and system for seismic information in social networking media |
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| CN108510566A (en) * | 2018-03-29 | 2018-09-07 | 中国农业大学 | A kind of generation method and system of emergent thematic maps |
| CN108694247A (en) * | 2018-05-08 | 2018-10-23 | 北京师范大学 | A kind of typhoon disaster the condition of a disaster analysis method based on microblog topic temperature |
| CN110426735A (en) * | 2019-07-02 | 2019-11-08 | 武汉大学 | A kind of detection method of the earthquake disaster coverage based on social media |
| CN113468320A (en) * | 2021-07-22 | 2021-10-01 | 中国地震台网中心 | Method and system for quickly visualizing earthquake emergency information |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108510566A (en) * | 2018-03-29 | 2018-09-07 | 中国农业大学 | A kind of generation method and system of emergent thematic maps |
| CN108694247A (en) * | 2018-05-08 | 2018-10-23 | 北京师范大学 | A kind of typhoon disaster the condition of a disaster analysis method based on microblog topic temperature |
| CN108694247B (en) * | 2018-05-08 | 2020-11-20 | 北京师范大学 | Typhoon disaster analysis method based on microblog topic popularity |
| CN110426735A (en) * | 2019-07-02 | 2019-11-08 | 武汉大学 | A kind of detection method of the earthquake disaster coverage based on social media |
| CN113468320A (en) * | 2021-07-22 | 2021-10-01 | 中国地震台网中心 | Method and system for quickly visualizing earthquake emergency information |
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| CN106897400B (en) | 2020-04-07 |
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