Optical modulation format recognition for polarization-multiplexed coherent system using Chinese restaurant process

2018 ◽  
Author(s):  
Muguang Wang ◽  
Mengji Sun ◽  
Yuxiao Guo ◽  
Hongqian Mu ◽  
Beilei Wu ◽  
...  
Keyword(s):  
Optical Modulation ◽  
Coherent System ◽  
Chinese Restaurant Process ◽  
Modulation Format ◽  
Chinese Restaurant

All-Optical Modulation Format Conversion From QPSK to Symbol Rate Doubled BPSK Using FWM and Pulse Width Compression

2017 ◽  
Vol 35 (19) ◽  
pp. 4219-4226 ◽  
Author(s):  
Batdalai Sukh ◽  
Hiroki Kishikawa ◽  
Nobuo Goto ◽  
Ganbold Shagdar
Keyword(s):  
Pulse Width ◽  
Optical Modulation ◽  
Format Conversion ◽  
Modulation Format ◽  
Symbol Rate ◽  
All Optical

All-Optical Modulation Format Conversion Between OOK, QPSK, and 8QAM

2019 ◽  
Vol 37 (16) ◽  
pp. 3925-3931 ◽  
Author(s):  
Hiroki Kishikawa ◽  
Masaki Uetai ◽  
Nobuo Goto
Keyword(s):  
Optical Modulation ◽  
Format Conversion ◽  
Modulation Format ◽  
All Optical

scholarly journals A Distance-Dependent Chinese Restaurant Process Based Method for Event Detection on Social Media

Inventions ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 80 ◽  
Author(s):  
Georgios Palaiokrassas ◽  
Athanasios Voulodimos ◽  
Antonios Litke ◽  
Athanasios Papaoikonomou ◽  
Theodora Varvarigou
Keyword(s):  
Social Media ◽  
Event Detection ◽  
Dirichlet Process ◽  
Chinese Restaurant Process ◽  
Chinese Restaurant ◽  
Social Events ◽  
The Social ◽  
Social Event Detection ◽  
Clustering Approach ◽  
Processing Steps

In this paper, we propose a method for event detection on social media, which aims at clustering media items into groups of events based on their textural information as well as available metadata. Our approach is based on distance-dependent Chinese Restaurant Process (ddCRP), a clustering approach resembling Dirichlet process algorithm. Furthermore, we scrutinize the effectiveness of a series of pre-processing steps in improving the detection performance. We experimentally evaluated our method using the Social Event Detection (SED) dataset of MediaEval 2013 benchmarking workshop, which pertains to the discovery of social events and their grouping in event-specific clusters. The obtained results indicate that the proposed method attains very good performance rates compared to existing approaches.

scholarly journals Demonstration of wavelength tunable optical modulation format conversion from 20 and 30 Gbit/s QPSK to PAM4 using nonlinear wave mixing

2020 ◽  
Vol 459 ◽  
pp. 124871 ◽  
Author(s):  
Ahmad Fallahpour ◽  
Fatemeh Alishahi ◽  
Ahmed Almaiman ◽  
Yinwen Cao ◽  
Amirhossein Mohajerin-Ariaei ◽  
...  
Keyword(s):  
Nonlinear Wave ◽  
Optical Modulation ◽  
Wave Mixing ◽  
Format Conversion ◽  
Modulation Format ◽  
Wavelength Tunable ◽  
Nonlinear Wave Mixing

All-optical modulation format conversion from star-QAM to PSK and ASK signals

2019 ◽  
Vol 451 ◽  
pp. 23-27 ◽  
Author(s):  
Feng Wan ◽  
Bao-Jian Wu ◽  
Feng Wen ◽  
Kun Qiu
Keyword(s):  
Optical Modulation ◽  
Format Conversion ◽  
Modulation Format ◽  
All Optical
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