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Talks:

September 17, 2019, talk tile: 'Exact and asymptotic enumerations of ascent sequences and Fishburn matrices', Minisymposium on enumerative and algebraic combinatorics, ÖMG (Austrian Mathematical Society)-conference, Dornbirn, Austria.
March 27, 2019, talk title: 'Random k-trees and Brownian Continuum Random Tree', Department of Mathematics, Xiamen University, Xiamen, China.
March 26, 2019, talk title: 'Heaps and Two Exponential Structures', Department of Mathematics, Jimei University, Xiamen, China.
March 22, 2019, talk title: 'Random k-trees and Brownian Continuum Random Tree', Department of Mathematics, Zhejiang Normal University, Jinhua, China.
March 13, 2019, talk title: 'Analytic methods in some combinatorial problems', Center for Combinatorics, Nankai University, Tianjin, China.
February 21, 2019, talk title: 'Exact Enumeration and asymptotics of Fishburn objects', Workshop on Combinatorics and Graph Theory, Institute of Mathematics, Academia Sinica, Taipei.
November 13, 2018, talk title: 'A new decomposition of ascent sequences and Euler--Stirling statistics', Arbeitsgemeinschaft Diskrete Mathematik, TU Wien.
April 17, 2018, talk title: 'A new decomposition of ascent sequences and Euler--Stirling statistics', NCTU, Hsinchu, Taiwan.
April 13, 2018, talk title: 'Fishburn family and Euler--Stirling statistics', Institute of Statistical Science, Academia Sinica, Taiwan.
November 1, 2017, talk title: 'strips, thickened strips and Schur function determinants', National Taiwan University, Academia Sinica, Taipei, Taiwan.
June 13, 2017, talk title: ''Graph limits of random k-trees", in der Arbeitsgemeinschaft Diskrete Mathematik, TU Wien.
February 21, 2017, talk title ''A note on the scaling limit of Random Polya trees'', National Chiao Tung University, Hsinchu, Taiwan.
September 21, 2016, talk title: ''Graph limits of random graphs from a subset of connected k-trees'', Combinatorics and Graph Theory Session of the joint conference of Austrian, Czech, Slovak, Slovenian and Catalonian Mathematics Societies, Barcelona, Spain.
September 12, 2016 talk title: ''Outside nested decompositions of skew diagrams and Schur function determinants'', 77th Séminaire Lotharingien de Combinatoire, Strobl, Austria.
September 6, 2016, talk title: ''open problems on the hook-length formula for skew shapes'', ALEA in Europe Young Researcher's Workshop, TU Wien, Vienna, Austria.
June 28, 2016: talk title: ''Outside nested decompositions of skew diagrams and Schur function determinants'', in der Arbeitsgemeinschaft Diskrete Mathematik, TU Wien.
January 11, 2016: talk title: ''Scaling limit of random k-trees'', at the conference Analco 16, Arlington, USA.
June, 2015, talk title: ''Heaps and Two Exponential Structures", in der Arbeitsgemeinschaft Diskrete Mathematik, TU Wien.
Oct., 2014, talk title: "An asymptotic analysis of unlabeled k-trees", in der Arbeitsgemeinschaft Diskrete Mathematik, TU Wien.
June, 2014, AofA 14, talk title: "An asymptotic analysis of unlabeled k-trees", 25th International Meeting on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms, Paris, France.
January 2012, talk title: ''The expected order of saturated secondary structures'', SIAM-ANALCO 12, (SIAM-meeting on Analytic Algorithmics and Combinatorics 2012), Kyoto, Japan.
July 2009, talk title: ''Random induced subgraphs of Cayley graphs induced by transpositions'', the 5-th Graph Theory and Combinatorics across Taiwan straits, Center for combinatorics, Nankai University, Tianjin, China.
July 2008, talk title: ''RNA pseudoknots structures'', the 9-th Annal Conference of Mathematical Biology, University of Toronto, Canada.

Visiting Experiences:

September 16--20, 2019, ÖMG (Austrian Mathematical Society)-conference, FH Vorarlberg, Dornbirn, Austria.
March 15--28, 2019, Jimei Univerisity, Xiamen, China.
March 13, 2019, Nankai University, Tianjin, China.
February 11--March 10, 2019, Academia Sinica, Taipei.
October 29-30, 2018, MOST (Taiwan) -- ANR (France) -- FWF (Austria) workshop, TU Wien, Vienna, Austria.
September 9-12, 2018, 81th Séminaire Lotharingien de Combinatoire (Krattenthaler 60th Birthday), Strobl, Austria.
July 2--6, 2018, Institute of Discrete Mathematics, TU Graz, Austria.
June 25--29, 2018, AofA, Uppsala University, Sweden.
April 9--May 9, 2018, Academia Sinica, Taiwan.
March 25-28, 2018, 80th Séminaire Lotharingien de Combinatoire, Lyon, France.
March 23, 2018, Deutsch C1-Prüfung, bestanden, München, Germany.
November 13-17, 2017, Programme on Computer Algebra in Combinatorics, Erwin-Schroedinger International Institute for Mathematics and Physics, Vienna, Austria.
November 1, 2017, National Taiwan University, Taipei, Taiwan.
October 30-31, 2017, Young researchers workshop, Academia Sinica, Taipei, Taiwan.
October 27-29, 2017, FWF(Austrian)-MOST (Taiwanese) Project meeting, NCTU, Hsinchu, Taiwan.
October 16-20, 2017, Programme on Algorithmic and Enumerative Combinatorics, the Erwin-Schroedinger International Institute for Mathematics and Physics, Vienna, Austria.
October 9-13, 2017, Alea in Europe. TU Wien, Austria.
September 10-13, 2017, Seminaire Lotharingien de Combinatoire, Centro Residenziale Universitario di Bertinoro, Italy.
August 28--September 1, 2017, EuroComb 17, TU Wien, Vienna, Austria.
June 19-23, 2017, AofA 2017, Princeton University, USA.
June 7-8, 2017, Two short courses on algebraic combinatorics, University of Coimbra, Coimbra, Portugal.
May 22-26, 2017, Summer School on ''Techniques in Random Discrete Structures'', National and Kapodistrian University of Athens, Athens, Greece.
April 29, 2017, B2-Prüfung, bestanden. Goethe-Institut, München, Germany.
February 20--March 3, 2017, Sinica, Taipeh, Taiwan.
November 28-30, 2016, SFB-meeting, Strobl, Austria.
October 7, 2016, SFB-Project extension hearing, poster. Hilton Hotel, Vienna, Austria.
September 20-23, 2016, Combinatorics and Graph Theory Session of the joint conference of Austrian, Czech, Slovak, Slovenian and Catalonian Math. Societies, Barcelona, Spain.
September 12-14, 2016, 77-th Séminaire Lotharingien de Combinatoire, Strobl, Austria.
September 6-9, 2016, ALEA in Europe Young Researcher's Workshop, TU Wien, Vienna, Austria.
August 1-5, 2016, the 3rd Algorithmic and Enumerative Combinatorics Summer School, RISC. Hagenberg, Austria.
July 4-7, 2016, AofA 16, the 27th International Meeting on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms, Krakow, Poland.
Feb. 22-25, 2016: Alea in Europe School 2016, Ludwig-Maximilians-Universität, München.
Jan. 29, 2016: SFB-meeting, Johannes Kepler Universität, Linz, Austria.
Jan. 11, 2016: ANALCO 16, Meeting on Analytic Algorithmics and Combinatorics, Arlington, Virginia, USA.
Nov. 30-Dec. 2, 2015, SFB Seminar, Strobl, Austria.
August 25-27, 2015, 2015 Joint Austrian-Hungarian Mathematical Conference, Györ, Hungary.
July 27-31, 2015, the 2nd Algorithmic and Enumerative Combinatorics Summer School, RISC. Hagenberg, Austria.
June 26, 2015, Goethe-Institut, München, B1-Deutschprüfung, 'gut' bestanden, Germany.
June 8-12, 2015, AofA 15, the 26th International Meeting on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms, Strobl, Austria.
May 27-29, 2015, Seminar on restricted lattice paths, RISC, Hagenberg, Austria.
February 23, 2015, Goethe-Institut, Mannheim-Heidelberg, A2-Deutschprüfung, 'gut' bestanden.
October 6-24, 2014, the Institute of Discrete Mathematics and Geometry, Vienna, Austria.
March 22-26, 2014, Seminaire Lotharingien de Combinatoire, Institut Camille Jordan, Universite Claude Bernard Lyon 1, Lyon, France.
November 18-29, 2013: the Institute of Discrete Mathematics and Geometry, Vienna, Austria.
September 15-18, 2013: Seminaire Lotharingien de Combinatoire, Centro Residenziale Universitario di Bertinoro, Italy.
July, 2013: FPSAC, Formal power series and algebraic combinatorics, Paris, France
March, 2012: Visit the department of Mathematics and Computer Science, Southern Denmark University, Odense, Denmark.
January, 2010, Visit the Postec, Pohang, South Korea.

Besides, I regularly visited (or visit) the ''Chinesische Evangelische Gemeinde''. Here are the addresses:

Chinesische Christliche Gemeinde in Kaiserslautern: Adolph-Kolping-Platz 11, 67655, Kaiserslautern.

Chinesische Christliche Gemeinde in Vienna: Erzherzog-Karl-Straße, 171, A-1220 Wien.

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