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Wyświetlanie 1-5 z 5
Tytuł:
The Role of Emotional Variables in the Classification and Prediction of Collective Social Dynamics
Autorzy:
Chołoniewski, J.
Sienkiewicz, J.
Hołyst, J.
Thelwall, M.
Powiązania:
https://bibliotekanauki.pl/articles/1388316.pdf
Data publikacji:
2015-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.50.-r
07.05.Hd
89.20.Hh
Opis:
We demonstrate the power of data mining techniques for the analysis of collective social dynamics within British Tweets during the Olympic Games 2012. The classification accuracy of online activities related to the successes of British athletes significantly improved when emotional components of tweets were taken into account, but employing emotional variables for activity prediction decreased the classifiers' quality. The approach could be easily adopted for any prediction or classification study with a set of problem-specific variables.
Źródło:
Acta Physica Polonica A; 2015, 127, 3A; A-21-A-28
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emotional Analysis of Blogs and Forums Data
Autorzy:
Weroński, P.
Sienkiewicz, J.
Paltoglou, G.
Buckley, K.
Thelwall, M.
Hołyst, J.
Powiązania:
https://bibliotekanauki.pl/articles/1408915.pdf
Data publikacji:
2012-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.50.-r
07.05.Hd
89.20.Hh
89.70.Cf
Opis:
We perform a statistical analysis of emotionally annotated comments in two large online datasets, examining chains of consecutive posts in the discussions. Using comparisons with randomised data we show that there is a high level of correlation for the emotional content of messages.
Źródło:
Acta Physica Polonica A; 2012, 121, 2B; B-128-B-132
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical Analysis of Emotions and Opinions at Digg Website
Autorzy:
Pohorecki, P.
Sienkiewicz, J.
Mitrović, M.
Paltoglou, G.
Hołyst, J.
Powiązania:
https://bibliotekanauki.pl/articles/1400182.pdf
Data publikacji:
2013-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.50.-r
07.05.Hd
89.20.Hh
89.70.Cf
Opis:
We performed statistical analysis on data from the Digg.com website, which enables its users to express their opinion on news stories by taking part in forum-like discussions as well as to directly evaluate previous posts and stories by assigning so called "diggs". Owing to fact that the content of each post has been annotated with its emotional value, apart from the strictly structural properties, the study also includes an analysis of the average emotional response of the comments about the main story. While analysing correlations at the story level, an interesting relationship between the number of diggs and the number of comments that a story received was found. The correlation between the two quantities is high for data where small threads dominate and consistently decreases for longer threads. However, while the correlation of the number of diggs and the average emotional response tends to grow for longer threads, correlations between numbers of comments and the average emotional response are almost zero. We also suggest presence of two different mechanisms governing the evolution of the discussion and, consequently, its length.
Źródło:
Acta Physica Polonica A; 2013, 123, 3; 604-615
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of EGNOS-Augmented GPS Receiver Positioning Accuracy
Autorzy:
Skorkowski, A.
Topór-Kamiński, T.
Powiązania:
https://bibliotekanauki.pl/articles/1417964.pdf
Data publikacji:
2012-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.10.Pr
89.20.Hh
06.20.Dk
07.05.Hd
Opis:
This study presents the operation basis of GPS global positioning system and augmentation systems used to increase positioning accuracy. Furthermore, selected measurement results for an EGNOS-augmented GPS receiver positioning are included along with an analysis of GIS measurements accuracy, performed using differential corrections. This analysis takes into consideration the impact of the number of measurement series and satellite constellation on the accuracy of positioning achieved in praxis using the EGNOS system.
Źródło:
Acta Physica Polonica A; 2012, 122, 5; 821-824
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected Methods of Measuring the Delay in Data Transmission Systems with Wireless Network Interfaces
Autorzy:
Topor-Kaminski, T.
Żurkowski, R.
Grygiel, M.
Powiązania:
https://bibliotekanauki.pl/articles/1493274.pdf
Data publikacji:
2011-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.10.Pr
89.20.Hh
06.20.-f
06.20.Dk
07.05.Hd
Opis:
The article presents the concept of creating model of delays occurring in telecommunication system taking into account all sources of delays generated during data transmission between the source and destination nodes. Proposed model takes into account the existence of intermediary network devices that play a significant role in the general delay budget. The paper presents two measurement systems used to measure delays in 802.11 g based wireless networks and ones using ZigBee standard. Both systems were built based on the authors' concepts of hardware and software allowing measurement of delays by using additional connection for the synchronization of internal clocks. Described measurement systems selected amount of experiments was performed for varied network structures.
Źródło:
Acta Physica Polonica A; 2011, 120, 4; 748-754
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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