ZTE Corporation, a leading global provider of telecommunications equipment and networking, has announced at the GSMA World Mobile Congress Barcelona 2010 that its global GSM sales continued to grow fast in 2009, with ...ZTE Corporation, a leading global provider of telecommunications equipment and networking, has announced at the GSMA World Mobile Congress Barcelona 2010 that its global GSM sales continued to grow fast in 2009, with a shipment of over 750,000 carrier frequencies in the past year. As its share in the global newly added market rose to almost 20%, ZTE is now one of the top 3 equipment vendors in the industry. In 2009, ZTE successfully sold its GSM products to world-class multinational operators such as Telenor, Teliasonera and Cell C, making large-scale advancements in European and emerging markets.展开更多
Multi-way join is critical for many big data applications such as data mining and knowledge discovery. Even though lots of research have been devoted to processing multi-way joins using MapReduce, there are still seve...Multi-way join is critical for many big data applications such as data mining and knowledge discovery. Even though lots of research have been devoted to processing multi-way joins using MapReduce, there are still several problems in general to be further improved, such as transferring numerous unpromising intermediate data and lacking of better coordination mechanisms. This work proposes an efficient multi-way joins processing model using MapReduce, named Sharing-Coordination-MapReduce (SC-MapReduce), which has the functions of sharing and coordination. Our SC-MapReduce model can filter the unpromising intermediatedata largely by using the sharing mechanism and optimize the multiple tasks coordination of multi-way joins. Extensive experiments show that the proposed model is efficient, robust and scalable.展开更多
The signing ceremony between the NARI Group Corporation and the EEBUS Initiative was held in Beijing on April 17, marking that NARI officially became the first Chinese member of the EEBUS.
On the beautiful Haizi Mountain 4,410 m above sea level in southwest China's Sichuan Province,construction work has begun on one of the world’s biggest and most sensitive cosmic ray detection facilities.Upon comp...On the beautiful Haizi Mountain 4,410 m above sea level in southwest China's Sichuan Province,construction work has begun on one of the world’s biggest and most sensitive cosmic ray detection facilities.Upon completion in 2020,the 1.2 billion yuan(180 million dollar)Large High Altitude Air Shower Observatory(LHAASO)will not only search for the sources of different types of展开更多
Zhao Xianming, a narcotics control liaison officer for Mengla county in southwest China＇s Yunnan Province,clearly remembered the circumstances of that Saturday.
China＇s arduous war against the HIV/AIDS plague gained a powerful new warrior when the State Industry ＆ Commerce Administration （SICA） integrated an HIV prevention message into its routine duties.
Ethiopian Airlines and UnionPay Interna- tional have signed a cooperation agree- ment that allows customers to pay with UnionPay cards when buying Ethiopian Airlines tickets online. The purchases can be made at both E...Ethiopian Airlines and UnionPay Interna- tional have signed a cooperation agree- ment that allows customers to pay with UnionPay cards when buying Ethiopian Airlines tickets online. The purchases can be made at both Ethiopian Airlines＇ Chinese website （wwwoethiopianairlines. com.cn） and English website （www.ethio- pianairlines.com）. The transactions can be made with UnionPay cards starting with 62. The two organizations announced this service jointly at the UnionPay In- ternational headquarters in Shanghai on May 12.展开更多
Two popular traditional join algorithms and their parallel versions are introduced. When designing join algorithms in serial computing environment, decomposing inner relation is considered as the right direction to sa...Two popular traditional join algorithms and their parallel versions are introduced. When designing join algorithms in serial computing environment, decomposing inner relation is considered as the right direction to save disk I/Os. However, two different decomposition algorithms are compared, such as inner vs. outer decomposition first algorithms for tuple-based and block-based nested loop joins, showing that the proposed approach is 20% better than general approach. Also lemmas are proved, when we have to use the outer decomposition first parallel join algorithms.展开更多
We address several load shedding techniques over sliding window joins. We first construct a dual window architectural model including aux-windows and join-windows, and build statistics on aux-windows. With the statist...We address several load shedding techniques over sliding window joins. We first construct a dual window architectural model including aux-windows and join-windows, and build statistics on aux-windows. With the statistics, we develop an effective load shedding strategy producing maximum subset join outputs. In order to accelerate the load shedding process, binary indexed trees have been utilized to reduce the cost on shedding evaluation. When streams have high arrival rates, we propose an approach incorporating front-shedding and rear-shedding, and find an optimal trade-off between them. As for the scenarios of variable speed ratio, we develop a plan reallocating CPU resources and dynamically resizing the windows. In addition, we prove that load shedding is not affected during the process of reallocation. Both synthetic and real data are used in our experiments, and the results show the promise of our strategies.展开更多
The Asian Infrastructure InvestmentBank＇s （AIIB） Board of Governorshas approved the membershipapplication of the Republic of Lebanon, bringing AIIB＇s totalapproved membership to 87,according to the bank＇s officia...The Asian Infrastructure InvestmentBank＇s （AIIB） Board of Governorshas approved the membershipapplication of the Republic of Lebanon, bringing AIIB＇s totalapproved membership to 87,according to the bank＇s official.website on June 26.展开更多
On July 1, 1997, Hong Kong finally returns to the motherland. July 1 was a day of Chinese national pride. Looking back, Hong Kong experienced great changes and the Chinese nation was subjected to humiliation during th...On July 1, 1997, Hong Kong finally returns to the motherland. July 1 was a day of Chinese national pride. Looking back, Hong Kong experienced great changes and the Chinese nation was subjected to humiliation during the 156 years. The Chinese nation had expected and made unremitting efforts to become stronger for more than 100 years. After resuming sovereignty over Hong Kong, the Chinese government will bring a brighter future to Hong Kong under the policies of "one country, two systems," and "Hong Kong people governing Hong Kong, with a high degree of autonomy." Hong Kong and the mainland will conduct more economic and cultural exchanges and create a more splendid future for the motherland.展开更多
A labeling of a graph G is a bijection from E（G） to the set {1,2,…,｜E （G）｜ }.A labeling is antimagic if for any distinct vertices x and y,the sum of the labels on edges incident to x is different from the sum o...A labeling of a graph G is a bijection from E（G） to the set {1,2,…,｜E （G）｜ }.A labeling is antimagic if for any distinct vertices x and y,the sum of the labels on edges incident to x is different from the sum of the labels on edges incident to y.We say that a graph is antimagic if it has an antimagic labeling.Hartsfield and Ringel conjectured in 1990 that every graph other than 2 K is antimagic.In this paper,we show that the antimagic conjecture is false for the case of disconnected graphs.Furthermore,we find some classes of disconnected graphs that are antimagic and some classes of graphs whose complement are disconnected are antimagic.展开更多
Celanese Corporation has become a foundingcorporate member of the U.S.-China EnergyCooperation Program (ECP) and joined theentity’s founding management board.Celaneseannounced on December 23rd,2009.This reaffirms the...Celanese Corporation has become a foundingcorporate member of the U.S.-China EnergyCooperation Program (ECP) and joined theentity’s founding management board.Celaneseannounced on December 23rd,2009.This reaffirms the company’s commitmentto environmentally sustainable growth inChina,the company’s fastest-growingregion.The mission of ECP,a private-sectorinitiated,managed and financedorganization,is to facilitate the adoption展开更多
A graph is called 1-planar if it admits a drawing in the plane such that each edge is crossed at most once.In this paper,we study 1-planar graph joins.We prove that the join G ＋ H is 1-planar if and only if the pair ...A graph is called 1-planar if it admits a drawing in the plane such that each edge is crossed at most once.In this paper,we study 1-planar graph joins.We prove that the join G ＋ H is 1-planar if and only if the pair [G,H] is subgraph-majorized by one of pairs [C3 ∪ C3,C3],[C4,C4],[C4,C3],[K2,1,1,P3] in the case when both elements of the graph join have at least three vertices.If one element has at most two vertices,then we give several necessary/sufficient conditions for the bigger element.展开更多
A Sunday in early fall is a good time for those living in the Mu'endi community to enjoy their new life after their busy relocation here recently.At the Central Square,the community elders can be seen chatting and...A Sunday in early fall is a good time for those living in the Mu'endi community to enjoy their new life after their busy relocation here recently.At the Central Square,the community elders can be seen chatting and laughing in the warm sun.Young women sit on the lush green lawns,keeping an eye on their toddlers while embellishing their homemade clothes with the unique embroidery of their community.The only store in the community bustles with boisterous children scrambling to buy lollipops.展开更多
文摘ZTE Corporation, a leading global provider of telecommunications equipment and networking, has announced at the GSMA World Mobile Congress Barcelona 2010 that its global GSM sales continued to grow fast in 2009, with a shipment of over 750,000 carrier frequencies in the past year. As its share in the global newly added market rose to almost 20%, ZTE is now one of the top 3 equipment vendors in the industry. In 2009, ZTE successfully sold its GSM products to world-class multinational operators such as Telenor, Teliasonera and Cell C, making large-scale advancements in European and emerging markets.
基金This work was supported by the National Natural Science Foundation of China under Grant No.60873068,61472169 the Program for Excellent Talents in Liaoning Province under Grant No.LR201017.
文摘Multi-way join is critical for many big data applications such as data mining and knowledge discovery. Even though lots of research have been devoted to processing multi-way joins using MapReduce, there are still several problems in general to be further improved, such as transferring numerous unpromising intermediate data and lacking of better coordination mechanisms. This work proposes an efficient multi-way joins processing model using MapReduce, named Sharing-Coordination-MapReduce (SC-MapReduce), which has the functions of sharing and coordination. Our SC-MapReduce model can filter the unpromising intermediatedata largely by using the sharing mechanism and optimize the multiple tasks coordination of multi-way joins. Extensive experiments show that the proposed model is efficient, robust and scalable.
文摘The signing ceremony between the NARI Group Corporation and the EEBUS Initiative was held in Beijing on April 17, marking that NARI officially became the first Chinese member of the EEBUS.
文摘On the beautiful Haizi Mountain 4,410 m above sea level in southwest China's Sichuan Province,construction work has begun on one of the world’s biggest and most sensitive cosmic ray detection facilities.Upon completion in 2020,the 1.2 billion yuan(180 million dollar)Large High Altitude Air Shower Observatory(LHAASO)will not only search for the sources of different types of
文摘Zhao Xianming, a narcotics control liaison officer for Mengla county in southwest China＇s Yunnan Province,clearly remembered the circumstances of that Saturday.
文摘China＇s arduous war against the HIV/AIDS plague gained a powerful new warrior when the State Industry ＆ Commerce Administration （SICA） integrated an HIV prevention message into its routine duties.
文摘Ethiopian Airlines and UnionPay Interna- tional have signed a cooperation agree- ment that allows customers to pay with UnionPay cards when buying Ethiopian Airlines tickets online. The purchases can be made at both Ethiopian Airlines＇ Chinese website （wwwoethiopianairlines. com.cn） and English website （www.ethio- pianairlines.com）. The transactions can be made with UnionPay cards starting with 62. The two organizations announced this service jointly at the UnionPay In- ternational headquarters in Shanghai on May 12.
基金supported by the National Research Foundation (NRF) of Korea through contract N-14-NMIR06
文摘Two popular traditional join algorithms and their parallel versions are introduced. When designing join algorithms in serial computing environment, decomposing inner relation is considered as the right direction to save disk I/Os. However, two different decomposition algorithms are compared, such as inner vs. outer decomposition first algorithms for tuple-based and block-based nested loop joins, showing that the proposed approach is 20% better than general approach. Also lemmas are proved, when we have to use the outer decomposition first parallel join algorithms.
基金This work is supported by the National Natural Science Foundation of China under Grant Nos. 60473074, 60573089 and National Grand Fundamental Research 973 Program of China under Grant No. 2006CB303103.
文摘We address several load shedding techniques over sliding window joins. We first construct a dual window architectural model including aux-windows and join-windows, and build statistics on aux-windows. With the statistics, we develop an effective load shedding strategy producing maximum subset join outputs. In order to accelerate the load shedding process, binary indexed trees have been utilized to reduce the cost on shedding evaluation. When streams have high arrival rates, we propose an approach incorporating front-shedding and rear-shedding, and find an optimal trade-off between them. As for the scenarios of variable speed ratio, we develop a plan reallocating CPU resources and dynamically resizing the windows. In addition, we prove that load shedding is not affected during the process of reallocation. Both synthetic and real data are used in our experiments, and the results show the promise of our strategies.
文摘The Asian Infrastructure InvestmentBank＇s （AIIB） Board of Governorshas approved the membershipapplication of the Republic of Lebanon, bringing AIIB＇s totalapproved membership to 87,according to the bank＇s official.website on June 26.
文摘On July 1, 1997, Hong Kong finally returns to the motherland. July 1 was a day of Chinese national pride. Looking back, Hong Kong experienced great changes and the Chinese nation was subjected to humiliation during the 156 years. The Chinese nation had expected and made unremitting efforts to become stronger for more than 100 years. After resuming sovereignty over Hong Kong, the Chinese government will bring a brighter future to Hong Kong under the policies of "one country, two systems," and "Hong Kong people governing Hong Kong, with a high degree of autonomy." Hong Kong and the mainland will conduct more economic and cultural exchanges and create a more splendid future for the motherland.
基金Supported by the National Natural Science Foundation of China (10201022,10971144,and 11101020)the Natural Science Foundation of Beijing (1102015)the Fundamental Research Funds for the Central Universities(2011B019)
文摘A labeling of a graph G is a bijection from E（G） to the set {1,2,…,｜E （G）｜ }.A labeling is antimagic if for any distinct vertices x and y,the sum of the labels on edges incident to x is different from the sum of the labels on edges incident to y.We say that a graph is antimagic if it has an antimagic labeling.Hartsfield and Ringel conjectured in 1990 that every graph other than 2 K is antimagic.In this paper,we show that the antimagic conjecture is false for the case of disconnected graphs.Furthermore,we find some classes of disconnected graphs that are antimagic and some classes of graphs whose complement are disconnected are antimagic.
文摘Celanese Corporation has become a foundingcorporate member of the U.S.-China EnergyCooperation Program (ECP) and joined theentity’s founding management board.Celaneseannounced on December 23rd,2009.This reaffirms the company’s commitmentto environmentally sustainable growth inChina,the company’s fastest-growingregion.The mission of ECP,a private-sectorinitiated,managed and financedorganization,is to facilitate the adoption
基金Supported by the Agency of Slovak Ministry of Education for the Structural Funds of the EU under project ITMS:26220120007by Science and Technology Assistance Agency under the contract No.APVV-0023-10by Slovak VEGA grant No.1/0652/12
文摘A graph is called 1-planar if it admits a drawing in the plane such that each edge is crossed at most once.In this paper,we study 1-planar graph joins.We prove that the join G ＋ H is 1-planar if and only if the pair [G,H] is subgraph-majorized by one of pairs [C3 ∪ C3,C3],[C4,C4],[C4,C3],[K2,1,1,P3] in the case when both elements of the graph join have at least three vertices.If one element has at most two vertices,then we give several necessary/sufficient conditions for the bigger element.
文摘A Sunday in early fall is a good time for those living in the Mu'endi community to enjoy their new life after their busy relocation here recently.At the Central Square,the community elders can be seen chatting and laughing in the warm sun.Young women sit on the lush green lawns,keeping an eye on their toddlers while embellishing their homemade clothes with the unique embroidery of their community.The only store in the community bustles with boisterous children scrambling to buy lollipops.
