The Shuffle Continues

Total Page:16

File Type:pdf, Size:1020Kb

The Shuffle Continues Industry & Suppliers Photo: Kaco Photo: SMA and ABB were the only non-movers in the latest ranking of global inverter suppliers, with SolarEdge the big risers and Advanced Energy’s exit from the industry creating an opportunity for other players to grow. ally, and 24% in 2012. By the end of 2014 The shuffle continues that figure was 14% – still nearly double that of nearest rival ABB, but tangible evidence that its stranglehold was loos- Ranking inverter suppliers: Germany’s SMA looks to have put the troubles of 2014 ening in the face of Asian pressure. behind it this year, benefiting from Advanced Energy’s exit from the inverter market But according to the latest first half rev- enue data from IHS, SMA has engineered to increase its share of global revenue, while SolarEdge is the big riser so far in 2015. an upturn in its fortunes, securing 18% of global inverter revenues over the first six months of the year – an increase on the In May, data published by IHS painted tained their current share in each coun- 11% share it had secured at the same point a decidedly bleak picture for German try this year, it is possible that we would in 2014, and 4% more than the 14% mar- inverter specialist SMA. The analysts’ see a new global market leader,” said IHS ket share it attained over the entire course PV Inverter Market Tracker showed that senior analyst, solar supply chain, Cor- of last year. This is the first time SMA has the global PV inverter market shrank mac Gilligan, at the time. “In fact, for the increased its share of global revenue for 4% in 2014, with global revenue falling first time on record SMA could be dis- nearly five years – the undeniable fruits of to $6.6 billion. placed as the leading PV inverter sup- a root-and-branch restructuring process Intense price pressure drove this plier, if not in terms of revenue then quite that saw more than 1,600 jobs go over the downward trend and served to play into possibly in terms of MW shipments.” course of last year, a suite of new prod- the hands of the leading Chinese inverter Fast forward to fall and the threat of uct launches and the rather serendipitous suppliers – namely Sungrow and Huawei Sungrow usurping SMA as the world exit of U.S. company Advanced Energy – both of which made large gains in terms leader in terms of MW shipments from the inverter industry, which served of MW shipments. However, as the aver- remains, but in terms of both revenue and to create a revenue vacuum quickly filled age price of inverters in China remained overall market share the German giant by many of Europe’s more fleet-footed more than 50% below global averages has actually improved upon last year, and suppliers. ($0.07/W compared to $0.16/W), SMA is on course to perform far better in 2015 and ABB were able to cling on to their than it did in 2014. Wider trends of 2015 positions at the top of the revenue table. These are not the days of complete Ger- The impressive recovery of SMA this “Due to global demand shifting man domination, however. In 2010 SMA year has been newsworthy, but even that towards Asian markets, if suppliers main- cornered 40% of inverter revenue glob- is perhaps not the headline story. The 56 11 / 2015 | www.pv-magazine.com Industry & Suppliers expansion of module level power elec- tronics (MLPE) continues apace, and two of the leading proponents in this space – Israeli power optimizer specialist SolarEdge and U.S. microinverter man- Photo: Enphase Energy Photo: ufacturer Enphase Energy – have both enjoyed a strong year so far in 2015. “The MLPE sector is still heavily dependent on the U.S. market, in partic- ular the residential and small commer- cial segments in which they account for a large proportion of the market,” Gilli- gan told pv magazine. “There has been a lot of partnering with module suppliers in this space, and this is an area that we expect to continue to go from strength to strength.” Further trends covered by pv maga- zine throughout the year include a grow- ing prevalence for three-phase string Enphase Energy’s microinverters have enjoyed impressive growth in the markets of Australia, New inverters at large scale, as well as a grow- Zealand, France and the U.K. as attitudes shift favorably towards the technology. ing preference for 1,500 V components across the solar supply chain. added, however, that IHS does not foresee liked, or where their projects are very “The emergence and continuous pro- a central inverter capacity issue just yet in stop-start,” warned Gilligan. “There will motion of string inverters in large-scale any of the major markets. eventually be more fallout post-2016 with installations, driven by Huawei in China At the Solar Power International (SPI) the ITC in the U.S. Market contraction in in particular (where the company is exhibition held in September, the grow- certain key markets will prove challeng- using its 30 kW – 40 kW inverters in util- ing trend for 1,500 V inverters proved ing for some companies.” ity-scale solar farms) will continue into a hot topic. IHS believes that further next year,” believes Gilligan. In the U.S. test installations at 1,500 V are likely SMA: A second wind market, central inverters are still the pre- to become more widely apparent in the The bigger they come, the harder they ferred option for most utility-scale instal- fourth quarter (Q4) of 2015, particularly fall. But size and strength also bring sta- lations, but – the IHS analyst adds – “this among suppliers such as SMA, ABB, bility, a longer reach and the ability to is beginning to change. If there is ever a TMEIC, Power Electronics and General see the wider picture. SMA was certainly shortage of central inverters due to lead Electric (GE). “We see the 1,500 V market on the ropes this time last year. Revenue times, then certain U.S. EPCs may well be taking off in the second half of 2016 in the share had fallen to 11% of the market, tempted to use string inverters in some U.S., where the main central inverter sup- having narrowed every year since 2010. markets across North America.” Gilligan pliers will have a product ready to shift,” At the height of summer 2014 the com- said Gilligan. “We know that some Chi- Top 10 inverter suppliers (global revenue share) nese suppliers have done something sim- ilar already in China, using 1,500 V in AT A GLANCE 1. SMA Solar Technology – large central inverters.” fi The tilt eastwards is a wider trend of t SMA engineers its rst increase in global revenue 2. ABB – 2010 the solar industry, and one that has been share since as the German inverter supplier reaps the benefits of a proactive restructuring 3. SolarEdge +8 evident in the inverter landscape. How- and marketing strategy. ever, with inverter prices still much lower 4. Omron –1 t Asian pressure has continued to grow, but lower Graphic: pv magazine/Harald Schütt magazine/Harald pv Graphic: in many of the major Asian markets bar prices in China mean the revenues of the leading 5. Enphase Energy +1 Japan, suppliers that have greater mar- Chinese suppliers remain below those from the ket share in the U.S., Europe and some West. 6. Tabuchi –2 of the other emerging markets in Latin t The growing trend for MLPE technologies has served SolarEdge and Enphase Energy extremely 7. Schneider Electric +1 America and elsewhere are still able to well, with both companies growing their global compete in terms of global revenue. How- 8. Huawei +2 share. ever, the looming Investment Tax Credit t Japan’s leading inverter suppliers have enjoyed 9. TMEIC –4 (ITC) phase-down on the horizon at the a steady, if unspectacular year, with some begin- end of 2016 is likely to force many lead- ning the long process of expanding into foreign 10. Sungrow +3 Source: IHS Source: ing inverter suppliers to seek a more markets. t Wider trends include a continued preference for Rankings based on sales revenue for first half of 2015, represented as the geographically diverse revenue stream. company’s market share of the total global sales revenue – in US$ – of the “Price pressure is going to continue to string inverters at large scale and the emergence inverter (including microinverter) industry. of 1,500 volt inverters. Ranking changes compared to 2014 (based on sale revenue). strain some of the suppliers who have not achieved the volumes they would have 11 / 2015 | www.pv-magazine.com 57 Industry & Suppliers pany cut its sales forecast and announced Gilligan says the company has “limited 4 GW in size. “The major advantage of that 600 staff would be losing their jobs. market share.” having a supplier like ABB in the Indian By January this year that figure had “The Chinese market is extremely large market is that the company has many ser- risen to 1,600 employees, of which around and highly competitive, particularly this vice engineers, a large after-sales team 1,300 jobs were to go in Germany – SMA’s year, because of the intense price pres- and plenty of subsidiaries so as regions domestic market. Pressure from Asian sure among the top five suppliers there,” take off ABB can supply products and suppliers had exacerbated an already said Gilligan. “SMA will instead apply its services quickly,” said Gilligan.
Recommended publications
  • Aplikasi Permainan Capsah Banting Dengan Penerapan Algoritma Minimax
    Aplikasi Permainan Capsah Banting dengan Penerapan Algoritma Minimax Hapnes Toba, Billy Kurniawan Program Studi D3 Teknik Informatika Fakultas Teknologi Informasi, Universitas Kristen Maranatha . Prof. Drg. Suria Sumantri No. 65 Bandung 40164 Email: [email protected], [email protected] Abstract Big-two card game, is one of well-known card climbing games which probably originated in coastal China around 1980. Soon it became very popular in Shanghai, Hong Kong, Taiwan and also in the Philippines and Singapore; it has also spread to some western countries. In climbing games, each player in turn must play a higher card (or combination of cards) than the previous player. A player who cannot or does not wish to beat the previous play can pass. This continues for as many rounds as necessary until someone makes a play which no one will beat. That player wins the "trick" and leads to another one. Because players can pass, their cards are not used at an equal rate and some will run out before others. This kind of strategy produces an imperfect information environment. In this article will be reported how the Big Two card game is implemented in computer with the application of Minimax Algorithm, to predict the information, i.e. the value of cards in hand, for the next player who has the turn to minimize the card “value” of the other players. Keywords : Big Two, Card Games, MíniMax Algortihm, Macromedia Flash 1. Pendahuluan Perkembangan teknologi saat ini kian berkembang pesat, komputerisasi pun merambah ke segala bidang. Game (aplikasi permainan) adalah sebagian kecil dari teknologi masa kini yang terus mengalami perkembangan.
    [Show full text]
  • Dai Di Analysis
    3 << 2: Dai-di Analysis Teo Kai Meng, Roddy Kok Yik Siong, Jeremy Ang Kay Yong and Ivan Lim Wen Chiang Abstract Chor Dai Di is a popular local card game played usually with four players. Unlike other popular card games like Bridge or Poker, Big Two, as it is also known as, has little formal study made on it. An attempt is therefore made here to employ a systematic approach, not unlike that for the other card games, to formalise the workings of the game, as well as provide an insight to more advance play. With the compilation of a set of useful probabilistic data of the game, heuristics for playing can then be verified and new ones created. Introduction Amongst local card players, Chor Dai Di has to rank as one of the most popular, as the game is easy to get started on, though deceptively difficult to master. For some, the appeal of the game lies in its reliance on skill and judgment, though one can of course throw the decisions of game play to chance. As such, we believe that since it is possible to master the game, it must be possible to devise some guidelines for better play. To better appreciate the game, we had hoped to find out its origins. Unfortunately, the exact history of the game is unavailable, as we have yet to come across any book or documentation of the game. We did find a website on the game, but it had only an outline on the rules. Perhaps, it is then fair for us to make an inference on this apparent lack of information.
    [Show full text]
  • Chimera-Rulescompressed.Pdf
    OBJECT OF THE GAME Chimera is a 3-player card game of two against one. It is similar to climbing and shedding based card games like Tichu, The Great Dalmuti, Big Two and Beat the Landlord. Each hand one player is designated Chimera and the other two players team up as the Chimera Hunters to defeat the Chimera. Players compete for points in several hands of play and the winner is the player who scores the most points once the designated Score Limit is reached by one or more players. Chimera is normally played to 400 points although longer or shorter games may be played. COMPONENTS The game is played with a 54-card deck: • 4 cards each of ranks 1 through 12 (although suits are included, they have no effect on game play) 8 of these cards are Treasure cards and provide points 2 2 to the player who takes them in a trick. • 4 Rank 2 “Fortune Toads” worth +10 points each. 11 11 2 • 4 Rank 11 “Prosperity Cats” worth +5 points each. 2 11 • 4 Heroes, which rank higher than the cards ranked 1 11 through 12, but have no numerical value and so cannot H H be used in playing straigths, or ranked sequences (except as added cards). H • 1 Pi Ya card (P), which outranks all other single cards P H P except the Chimera and can optionally be used to substitute for any ranked card 1-12 to assist in making a P straight. For example, 8-9-10-Pi Ya-12. P • 1 Chimera card, which outranks all single cards.
    [Show full text]
  • A Rule-Based AI Method for an Agent Playing Big Two
    applied sciences Article A Rule-Based AI Method for an Agent Playing Big Two Sugiyanto , Gerry Fernando and Wen-Kai Tai * Department of Computer Science and Information Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan; [email protected] (S.); [email protected] (G.F.) * Correspondence: [email protected] Abstract: Big Two is a popular multiplayer card game in Asia. This research proposes a new method, named rule-based AI, for an agent playing Big Two. The novel method derives rules based on the number of cards the AI agent has left and the control position. The rules for two to four cards left are used to select the card combination to discard based on the number of cards remaining in the agent’s hand. The rules for more than four cards left conditionally prioritize discarding the card combination in the classified cards with lower priority. A winning strategy provides guidelines to guarantee that the AI agent will win when a win is achievable within three moves. We also design the rules for the AI agent without control for holding cards and splitting cards. The experimental results show that our proposed AI agent can play Big Two well and outperform randomized AI, conventional AI, and human players, presenting winning rates of 89.60%, 73.00%, and 55.05%, respectively, with the capability of maximizing the winning score and minimizing the number of cards left when the chance of winning is low. Keywords: game bot; agent; rule-based AI; imperfect information; Big Two Citation: Sugiyanto; Fernando, G.; Tai, W.-K.
    [Show full text]
  • Small Stakes Hold 'Em Winning Big with Expert Play by ED MILLER, DAVID SKLANSKY, and MASON MALMUTH
    1 Small Stakes Hold 'em Winning Big with Expert Play By ED MILLER, DAVID SKLANSKY, and MASON MALMUTH A product of Two Plus Two Publishing FIRST EDITION SECOND PRINTING JANUARY 2005 Printing and Binding Creel Printers, Inc. Lbs Vegas, Nevada Printed in the United States of America 2 Ed Miller Devid Skalansky Mason Malmuth For today's poker players, Texas hold 'em is the game. Every day, tens of thousands of small stakes hold 'em games are played all over the world in homes, card rooms, and on the Internet. These games can be very profitable-if you play well. But most people don't play well and end up leaving their money on the table. Small Stakes Hold 'em: Winning Big with Expert Play explains everything you need to be a big winner. Unlike many other books about small stakes games, it teaches the aggressive and attacking style used by all professional players. However, it does not simply tell you to play aggressively; it shows you exactly how to make expert decisions through numerous clear and detailed examples. Small Stakes Hold 'em teaches you to think like a professional player. Topics include implied odds, pot equity, speculative hands, position, the importance of being suited, hand categories, counting outs, evaluating the flop, large pots versus small pots, protecting your hand, betting for value on the river, and playing overcards. In addition, after you learn the winning concepts, test your skills with over fifty hand quizzes that present you with common and critical hold 'em decisions. Choose your action, then compare it to the authors' play and reasoning.
    [Show full text]
  • The Java Big Two Game
    Deuce The Java Big Two Game by Xida Chen, Jeffrey Lo, and Felix Wong C r u x R e s e a r c h F a c i l i t y ii http://cx.freeshell.org/big2/ Copyright c 2000-2002 Crux Research Facility. All rights reserved. This document is free; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This document is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this document; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. Printed in Canada 10 9 8 7 6 5 4 3 2 1 To those who spent days and nights testing this game. Acknowledgments This project would not be possible without the enthusiasm and help of Sammy Leong, who was invaluable in ironing out the technical details of Java, testing the game, and providing suggestions on the design of the game. I am also in debt to Mr. Trudeau, who provided instructions and help throughout the development of this project and provided me with a Mac- OS-X-based lab facility. Finally, I would like to thank the following generous people for testing this game: Andy Lau, Jeffrey Lo, Felix Wong Preface Big Two is a simple and entertaining card game.
    [Show full text]
  • PLAYING CARDS 1 Perceptual and Cognitive Characteristics Of
    Running head: PLAYING CARDS 1 Perceptual and Cognitive Characteristics of Common Playing Cards Jay A. Olson Simon Fraser University Alym A. Amlani University of British Columbia Ronald A. Rensink University of British Columbia Author Note Address correspondence to J. Olson (email: [email protected]); or R. Rensink, Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver BC, V6T 1Z4, Canada (email: [email protected]). We would like to thank Friderike Moller,¨ Ray Wong, Kevin Ho, Curtis Lim, and Emily Cramer for their support, and Benjamin Shear, Thomas Fraps, Viktoriya Fedorchuk, Gustav Kuhn, and two anonymous reviewers for their comments. PLAYING CARDS 2 Abstract We examined the perceptual and cognitive characteristics of the playing cards commonly used in the Western world. Specifically, we measured their visibility, memorability, likability, and verbal and visual accessibility. Based on visibility and memorability, four groups of cards were distinguished: the Ace of Spades, other Aces, number cards, and face cards. Within each of these groups, there were few differences due to value or suit. Based on likability and accessibility, three additional groups were distinguished: the Ace of Hearts, Queen of Hearts, and King of Hearts. Several interesting relations were found between how people remember, like, and access cards; some of these were similar to effects found in studies of visual perception, while others seemed entirely new. Our results demonstrate that rigorous examination of real-world stimuli can shed light on the perception of ordinary objects, as well as help us understand why magic works in the mind. Keywords: magic, playing cards, visual perception, object perception, memory.
    [Show full text]
  • Viet Nam Generation, Volume 4, Number Article 1 1-2
    Vietnam Generation Volume 4 Number 1 Viet Nam Generation, Volume 4, Number Article 1 1-2 4-1992 Viet Nam Generation, Volume 4, Number 1-2 Follow this and additional works at: http://digitalcommons.lasalle.edu/vietnamgeneration Part of the American Studies Commons Recommended Citation (1992) "Viet Nam Generation, Volume 4, Number 1-2," Vietnam Generation: Vol. 4 : No. 1 , Article 1. Available at: http://digitalcommons.lasalle.edu/vietnamgeneration/vol4/iss1/1 This Complete Volume is brought to you for free and open access by La Salle University Digital Commons. It has been accepted for inclusion in Vietnam Generation by an authorized editor of La Salle University Digital Commons. For more information, please contact [email protected]. Viet Nam Generation, Volume 4, Number 1-2 Cover Page Footnote Edited by Dan Duffy. Contributing editors: Renny Christopher. David DeRose, Alan Farrell. Cynthia Fuchs, William M. King. Bill Shields, Tony Williams, and David Willson. This complete volume is available in Vietnam Generation: http://digitalcommons.lasalle.edu/vietnamgeneration/vol4/iss1/1 Viet N am Generation A Journal of Recent History and Contemporary Issues Volume A Number 1-2 David Luebke illustrations, from the Vietnam Generation, Inc. & Burning Cities Press reprint of Asa Baber's novel, Land of a Million Elephants. Contents In This Is s u e ........................................................................................ 5 Poetry by Rod McQuearey.................................................... 79 PublishER's Sta tem en t.................................................................4
    [Show full text]
  • Three Stories & Ten Poems 1923 Ernest Hemingway Le Flâneur Des
    Three Stories & Ten Poems 1923 Ernest Hemingway Le Flâneur des Deux Rives 1918 Guillaume Apollinaire Les Aventures De Télémaque 1922 Louis Aragon Ιδανικός Σύζυγος 1895 Oscar Wilde Ένα σκοτεινό αίνιγμα 1934 Agatha Christie Ο άνθρωπος που σκότωσε τον εαυτό του 1936 Edgar Allan Poe A collection of literary works from the 19th and 20th century typeset in Miasma, a new type family designed by George Triantafyllakos for the Atypical Type Foundry. The goal of the publication is to showcase the main variants of the type family and its potential as a text and display type family. You can find more information about the typeface at atypical.gr/fonts/Miasma All the texts are available on the public domain. The book was designed by George Triantafyllakos on December 2020 in Thessaloniki, Greece. Three Stories & Ten Poems 1923 Ernest Hemingway Le Flâneur des Deux Rives 1918 Guillaume Apollinaire Les Aventures De Télémaque 1922 Louis Aragon Ιδανικός Σύζυγος 1895 Oscar Wilde Ένα σκοτεινό αίνιγμα 1934 Agatha Christie Ο άνθρωπος που σκότωσε τον εαυτό του 1936 Edgar Allan Poe Three Stories & Ten Poems, by Ernest Hemingway ����������������������������������������������������������������������������������������������������������������������������������������������������������������� 8 Le Flâneur des Deux Rives, par Guillaume Apollinaire ���������������������������������������������������������������������������������������������������������������������������������������������������������� 38 Les Aventures De Télémaque, par Louis Aragon ��������������������������������������������������������������������������������������������������������������������������������������������������������������������
    [Show full text]
  • Pydealer Documentation Release 1.4.0
    PyDealer Documentation Release 1.4.0 Alex Crawford January 12, 2015 Contents 1 Quick Usage Example 3 2 Table of Contents 5 2.1 Getting Started..............................................5 2.2 API Documentation........................................... 14 2.3 License.................................................. 22 2.4 Indices and tables............................................ 33 Python Module Index 35 i ii PyDealer Documentation, Release 1.4.0 PyDealer is a simple to use Python package for “simulating” decks of standard playing cards (also known as a French deck). PyDealer let’s you easily create Deck instances, each containing a full 52 card deck of playing cards. Each card is a separate Card instance, with a name, value, suit, and abbreviation. There is also the Stack class, which is useful for creating hands, or discard piles, etc. It is the backbone of the PyDealer package, and actually the Deck class is just a subclass of the Stack class. PyDealer could possibly be used as part of a CLI (command line interface) card-based game, or even a graphical game as well, I suppose. It may also be of interest to beginner Python programmers, since it’s a relatively simple package, which I created as a way to learn Python, packaging, testing, documentation (Sphinx), etc. I even ended up learning how to use Git a bit, which I must say was slightly frustrating at first. This package has taught me a lot, and maybe someone else can benefit from it as well. Or maybe not. Either way, here it is. Contents 1 PyDealer Documentation, Release 1.4.0 2 Contents CHAPTER 1 Quick Usage Example Here is a quick example, using IDLE, demonstrating how to construct a new Deck instance, representing a full French deck of cards, as well as how to shuffle the deck, and deal some cards (7 of them) from it, to a hand.
    [Show full text]
  • A Critical Study of Hemingway^S Short Stories in Relation to His Novels
    A CRITICAL STUDY OF HEMINGWAY^S SHORT STORIES IN RELATION TO HIS NOVELS THESIS SUBMITTED FOR THE AWARD OF THE DEGREE OF Bottor of pi)iIogopI)p I M English Literature BY SHAHbA GHAURI UNDER THE SUPERVISION OF PROFESSOR S. WIQAR HUSAIN DEPARTMENT OF ENGLISH ALIGARH MUSLIM UNIVERSITY ALIGARH (INDIA) 1997 K'^P^ T6176 TO THE MEMOR OF MY LO¥Me FATHEE CONTENTS Acknowledgment Preface Page No Chapter 1 1 Introduction Hemingway and His Cntics Chapter II 16 Hemingway's Short Stories Distinct Features Chapter III 48 Hemingway's Novels Taking on From the Short Stones Chapter IV Interrelatedness of the Short Stories and the Novels (a) Themes 94 (b) Characterization 125 (c) Vision of Life 158 (d) Methods and Techniques 186 Conclusion 237 Bibliography 246 ACKNOWLEDGEMENT / am highly indebted to my supervisor Professor S Wiqar Husain for his guidance and inspiration throughout my work My obligation and gratitude to him cannot be expressed in words Without his encouragement and support it would not have been possible to complete my work I must also thank Professor Maqbool H Khan, the Chairman, Department of English under whose patronage the study was earned out Thanks are also due to all my teachers as well as the non-teaching staff of the Department of English, AMU Aligarh I sincerely thank all the members of my family for their co-operation dunng the preparation of my thesis I express my heartfelt gratitude to my mother Mrs Ruqaiya Ghauri whose encouragement and blessings have enabled me to do my humble bit to partially fulfill my late father's wishes
    [Show full text]
  • Nature of Attractive Multiplayer Games: Case Study on China's Most
    information Article Nature of Attractive Multiplayer Games: Case Study on China’s Most Popular Card Game—DouDiZhu Yuexian Gao 1 , Wanxiang Li 1, Yuhao Xiao 1 and Mohd Nor Akmal Khalid 1,2,* and Hiroyuki Iida 1,2 1 School of Information Science, Japan Advanced Institute of Science and Technology, Nomi 923-1211, Japan; [email protected] (Y.G.); [email protected] (W.L.); [email protected] (Y.X.); [email protected] (H.I.) 2 Research Center for Entertainment Science, Japan Advanced Institute of Science and Technology, Nomi 923-1292, Japan * Correspondence: [email protected] Received: 13 January 2020; Accepted: 28 February 2020 ; Published: 2 March 2020 Abstract: DouDiZhu, a multiplayer game with incomplete information, is the most popular card game in China. Although there are many DouDiZhu card games in the world, the specific characteristics of classical DouDiZhu card games are a harmonious combination of player numbers, player characters (landlords and peasants), deck numbers, and scoring systems. However, research on the complexity and attractiveness of DouDiZhu has not established. Therefore, in this paper, artificial intelligence (AI) players of different levels of DouDiZhu game were constructed for research, self-game simulation was conducted for DouDiZhu AI players, and game refinement measures were used to evaluate and identify the best Settings of the game. The results show that classical DouDiZhu provides the most complex game setup for all types of DouDiZhu AI players, while also clarifying its popularity. Keywords: multiplayer game; incomplete information game; game refinement theory; card game; DouDiZhu 1. Introduction Games predate human culture [1].
    [Show full text]