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| 1 | On Density-Based Data Streams Clustering Algorithms: A Survey显示文摘Clustering data streams has drawn lots of attention in the last few years due to their ever-growing presence. Data streams put additional challenges on clustering such as limited time and memory and one pass clustering. Furthermore, discovering clusters with arbitrary shapes is very important in data stream applications. Data streams are infinite and evolving over time, and we do not have any knowledge about the number of clusters. In a data stream environment due to various factors, some noise appears occasionally. Density-based method is a remarkable class in clustering data streams, which has the ability to discover arbitrary shape clusters and to detect noise. Furthermore, it does not need the number of clusters in advance. Due to data stream characteristics, the traditional density-based clustering is not applicable. Recently, a lot of density-based clustering algorithms are extended for data streams. The main idea in these algorithms is using densitybased methods in the clustering process and at the same time overcoming the constraints, which are put out by data stream's nature. The purpose of this paper is to shed light on some algorithms in the literature on density-based clustering over data streams. We not only summarize the main density-based clustering algorithms on data streams, discuss their uniqueness and limitations, but also explain how they address the challenges in clustering data streams. Moreover, we investigate the evaluation metrics used in validating cluster quality and measuring algorithms' performance. It is hoped that this survey will serve as a steppingstone for researchers studying data streams clustering, particularly density-based algorithms. | Amineh Amini Teh Ying Wah Hadi Saboohi | 2014 | Journal of Computer Science & Technology2014，29，1： | 9 |
| 2 | DYNAMICS OF KNOWLEDGE ACCUMULATION IN TECHNOLOGY FOLLOWER COUNTRIES: A SYSTEM DYNAMICS APPROACH显示文摘In this paper the process of knowledge accumulation for a particular technology is studied. Two countries, say the technology follower and the technology frontier, are considered. The frontier’s knowledge growth is determined by its R&D efforts on the technology. The level of knowledge stock for the follower country is augmented by its R&D activities for the technology and absorbing some of the external knowledge through spillover from the frontier. The extent to which the follower is able to exploit the external knowledge depends on technological gap, absorptive capacity, absorption time and degree of spillover. New concepts such as natural and enhanced degree of spillover, background and innovative knowledge and absorption speed are introduced in the present work to deeply explore the process of knowledge spillover. The factors influencing the knowledge development in the long term are simultaneously studied in an integrated structure provided by the System Dynamics approach. This framework shows the responses to the changes and provides the basis for examining the interactions among the variables over time. | Ehsan SHAFIEI Mohammad-Bagher GHOFRANI Yadollah SABOOHI | 2009 | Journal of Systems Science and Systems Engineering2009，18，3： | 3 |
| 3 | An evaluation of the impact of reducing energy subsidies on living expenses of households显示文摘 | Y. Saboohi | 2001 | Energy Policy2001，，3： | 2 |
| 4 | Experimental investigation of pulsating heat pipes and a proposed correlation显示文摘 | Shafii M B Arabnejad S Saboohi Y | | 0，，10： | 1 |
| 5 | Association of the angiotensin-converting enzyme (ACE) gene G2350A dimorphism with essential hypertension 显示文摘 | Saeed Mahmood M Saboohi K Osman Ali S | 2003 | J Hum Hypertens2003，17，： | 1 |
| 6 | Mathematical modeling of reaction in an iron ore pellet using a mixture of hydrogen,water vapor,carbon monoxide and carbon dioxide:an isothermal study显示文摘 | Valipour M S Motamed Hashemi M Y Saboohi Y | | 0，，03： | 1 |
| 7 | An Evaluation of the Impact of Reducing En-ergy Subsidies on Living Expenses of Households显示文摘 | SABOOHI Y | 2001 | Ener-gy Policy2001，29，3： | 1 |
| 8 | An evaluation of the impact of reducing energy subsidies on living expenses of households显示文摘 | Saboohi Y | 2001 | Energy Policy2001，29，3： | 1 |
| 9 | An evaluation of the impact of reducing energysubsidies on living expenses of households 显示文摘 | SABOOHI Y | 2001 | Energy Poli-cy2001，29，3： | 1 |
| 10 | Mathematical modeling of the reaction in an iron ore pellet using a mixture of hydrogen,water vapor,carbon monoxide and carbon dioxide:an isothermal study显示文摘 | Valipour M S Motamed Hashemi M Y Saboohi Y | | 0，，03： | 1 |
| 11 | Model for developing an eco - driving strategy of a passenger vehicle based on the least fuel consumption 显示文摘 | SABOOHI Y FARZANEH H | 2008 | Applied Energy2008，86，10： | 1 |
| 12 | Optimal poli- cy of energy innovation in developing countries: Develop- ment of solar PV in Iran 显示文摘 | SHAFIEI E SABOOHI Y GHOFRANI M B | 2009 | Energy Policy2009，37，3： | 1 |
| 13 | Numerical Study of Forced Convective Heat Transfer of Nanofluids: Comparison of Different Approaches 显示文摘 | R Lotfi Y Saboohi A M Rashidi | 2010 | International Communications in Heat and Mass Transfer2010，37，： | 1 |
| 14 | Numerical investigation of nonisothermal reduction of hematite using Syngas: the shaft scale study显示文摘 | Valipour M S Saboohi Y | 2007 | Modelling & Simulation in Materials Science & Engineering2007，15，5： | 1 |
| 15 | A comparative study on hydrogen interaction with defective graphene structures doped by transition metals显示文摘 | Lotfi R Saboohi Y | 2014 | Phys E: Low-dimensional Systems Nanostructures2014，60，： | 1 |
| 16 | Association of the angiotensin-converting enzyme (ACE) gene G2350A dimorphism with essential hypertension 显示文摘 | Saeed Mahmood M Saboohi K Osman Ali S | 2003 | J Hum Hypertens2003，17，： | 1 |
| 17 | Association of the angiotensin-converting enzyme (ACE) gene G2350A di morphism with essential hypertension显示文摘 | Saeed Mahmood M Saboohi K Osman Ali S | 2003 | J Hum Hypertens2003，17，10： | 1 |
| 18 | Model for developing an eeo-driving strategy of a passenger vehiele based on the least fuel consumption 显示文摘 | SABOOHI Y FARZANEH H | 2009 | Applied Energy2009，86，10： | 1 |
| 19 | Mathematical modeling of the reaction in an iron ore pellet using a mixture of hydrogen, water vapor, carbon monoxide and carbon dioxide: an isothermal study显示文摘 | Valipour M S Motamed hashemi M Y Saboohi Y | 2006 | Advanced Powder Technol2006，17，3： | 1 |
| 20 | An automatic subdigraph renovation plan for failure recovery of composite semantic Web services显示文摘 | Hadi SABOOHI Sameem ABDUL KAREEM | 2013 | Frontiers of Computer Science2013，7，6： | 0 |
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