Possible Tendencies of World Pattern 1.'Eastward Power Shift'This is a matter of great concern for some of the people in American strategic circle.A decade and more after the'9/11'happens to witness th...Possible Tendencies of World Pattern 1.'Eastward Power Shift'This is a matter of great concern for some of the people in American strategic circle.A decade and more after the'9/11'happens to witness the process ofrapid development of China in becoming one of the emerging economies of the world.Since 2012,the country has overtaken Japan in terms of GDP.展开更多
Plantinga＇s conception of possible worlds is problematic in one sense it relies on the prior idea of modality. His strategy for resolving the puzzle of transworld identity is significant in the metaphysical sense but...Plantinga＇s conception of possible worlds is problematic in one sense it relies on the prior idea of modality. His strategy for resolving the puzzle of transworld identity is significant in the metaphysical sense but fruitless in the epistemological sense because world-indexed properties cannot be used as effectively in epistemic practice as their counterparts, i.e., space- and time-indexed properties. His isolation of transworld identification from transworld identity is unconvincing. This paper argues that the intelligibility of modal discourse and reference is the essence of transworld identity. It is also proved that transworld identification is the epistemic ground of such intelligibility. Hence, the transworld identification problem is the epistemological foundation of the transworld identity problem, and there must be a comprehensive answer to the former.展开更多
Data uncertainty widely exists in many web applications, financial applications and sensor networks. Ranking queries that return a number of tuples with maximal ranking scores are important in the field of database ma...Data uncertainty widely exists in many web applications, financial applications and sensor networks. Ranking queries that return a number of tuples with maximal ranking scores are important in the field of database management. Most existing work focuses on proposing static solutions for various ranking semantics over uncertain data. Our focus is to handle continuous ranking queries on uncertain data streams： testing each new tuple to output highly-ranked tuples. The main challenge comes from not only the fact that the possible world space will grow exponentially when new tuples arrive, but also the requirement for low space- and time- complexity to adapt to the streaming environments. This paper aims at handling continuous ranking queries on uncertain data streams. We first study how to handle this issue exactly, then we propose a novel method （exponential sampling） to estimate the expected rank of a tuple with high quality. Analysis in theory and detailed experimental reports evaluate the proposed methods.展开更多
Concurrence is an important research area in collaborative problemsolving. This paper offers a formal definition for cooperative sequences in multi-agentsystems, discusses the different categories of concurrent action...Concurrence is an important research area in collaborative problemsolving. This paper offers a formal definition for cooperative sequences in multi-agentsystems, discusses the different categories of concurrent actions, and proposes somerules for situation revision and an algorithm used to generate resulting situations.An example is also given to show how to solve concurrent problems occurring inmulti-agent systems.展开更多
文摘Possible Tendencies of World Pattern 1.'Eastward Power Shift'This is a matter of great concern for some of the people in American strategic circle.A decade and more after the'9/11'happens to witness the process ofrapid development of China in becoming one of the emerging economies of the world.Since 2012,the country has overtaken Japan in terms of GDP.
文摘Plantinga＇s conception of possible worlds is problematic in one sense it relies on the prior idea of modality. His strategy for resolving the puzzle of transworld identity is significant in the metaphysical sense but fruitless in the epistemological sense because world-indexed properties cannot be used as effectively in epistemic practice as their counterparts, i.e., space- and time-indexed properties. His isolation of transworld identification from transworld identity is unconvincing. This paper argues that the intelligibility of modal discourse and reference is the essence of transworld identity. It is also proved that transworld identification is the epistemic ground of such intelligibility. Hence, the transworld identification problem is the epistemological foundation of the transworld identity problem, and there must be a comprehensive answer to the former.
文摘Data uncertainty widely exists in many web applications, financial applications and sensor networks. Ranking queries that return a number of tuples with maximal ranking scores are important in the field of database management. Most existing work focuses on proposing static solutions for various ranking semantics over uncertain data. Our focus is to handle continuous ranking queries on uncertain data streams： testing each new tuple to output highly-ranked tuples. The main challenge comes from not only the fact that the possible world space will grow exponentially when new tuples arrive, but also the requirement for low space- and time- complexity to adapt to the streaming environments. This paper aims at handling continuous ranking queries on uncertain data streams. We first study how to handle this issue exactly, then we propose a novel method （exponential sampling） to estimate the expected rank of a tuple with high quality. Analysis in theory and detailed experimental reports evaluate the proposed methods.
文摘Concurrence is an important research area in collaborative problemsolving. This paper offers a formal definition for cooperative sequences in multi-agentsystems, discusses the different categories of concurrent actions, and proposes somerules for situation revision and an algorithm used to generate resulting situations.An example is also given to show how to solve concurrent problems occurring inmulti-agent systems.
