The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform
Fang-mei Tseng - One of the best experts on this subject based on the ideXlab platform.
-
Technology Substitution Models for LCD and LED TVs
PICMET '13 - Technology Management for Emerging Technologies, 2013Co-Authors: Fang-mei TsengAbstract:To accurately forecast the demand for and Substitution of liquid crystal display (LCD) (cold cathode fluorescent lamp [CCFL] backlight) and light-emitting diode (LED) televisions, it is crucial for LCD manufacturing companies to allocate their resources. There are three popular Substitution Models for forecasting demand: the Lotka-Volterra competitive Model, the Norton and Bass multigenerational innovation diffusion Model, and the Marchetti and Nakicenovic technological Substitution Model. We used and compared these Models to estimate the sales volume of 42-inch CCFL and LED televisions. Three criteria of forecasting accuracy were used to compare the forecasting capabilities of these Models. The results showed that the technological Substitution Model was more accurate than other Models. © 2013 PICMET.
-
Combining scenario analysis with delphi and the technological Substitution Model to analyze the development of the OLED TV market
PICMET '09 - 2009 Portland International Conference on Management of Engineering & Technology, 2009Co-Authors: Fang-mei Tseng, Ai Chia ChengAbstract:The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology, and while it presents rich and complex portraits of possible future scenarios, it fails to provide quantifiable forecasts. Therefore, previous researchers have combined these two Models to analyze the development of new technologies. The current opinions of seasoned experts should also be taken into account for accurate forecasting. However, because there is often large variation among expert opinion, a method for coming to a consensus, such as the Delphi method, is also necessary. Therefore, we combined the technological Substitution Model with scenario analysis and the Delphi method to analyze the development of a new technology, namely, the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10 years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display.
-
assessing market penetration combining scenario analysis delphi and the technological Substitution Model the case of the oled tv market
Technological Forecasting and Social Change, 2009Co-Authors: Fang-mei Tseng, Ai Chia Cheng, Yi Nung PengAbstract:Abstract The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology. On the other hand, scenario analysis, as another breed to forecasting tool, provides rich and complex portraits of possible future development of technologies. However, it fails to provide quantifiable forecasts. Therefore, previous researchers combined these two methods to analyze the development of new technologies. Nevertheless, to make forecasting more holistic, the current opinions of seasoned experts should also be taken into account. However, because of the often-diverged expert opinions, a method for consensus building, such as the Delphi method, is also necessary. Therefore, we combined the scenario analysis with the Delphi method and the technological Substitution Model to analyze the development of a new technology, namely, the latest-generation television (TV), or the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10 years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display.
-
Assessing market penetration combining scenario analysis, Delphi, and the technological Substitution Model: The case of the OLED TV market
Technological Forecasting and Social Change, 2009Co-Authors: Fang-mei Tseng, Ai Chia Cheng, Yi Nung PengAbstract:The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology. On the other hand, scenario analysis, as another breed to forecasting tool, provides rich and complex portraits of possible future development of technologies. However, it fails to provide quantifiable forecasts. Therefore, previous researchers combined these two methods to analyze the development of new technologies. Nevertheless, to make forecasting more holistic, the current opinions of seasoned experts should also be taken into account. However, because of the often-diverged expert opinions, a method for consensus building, such as the Delphi method, is also necessary. Therefore, we combined the scenario analysis with the Delphi method and the technological Substitution Model to analyze the development of a new technology, namely, the latest-generation television (TV), or the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10 years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display. © 2009 Elsevier Inc. All rights reserved.
-
Combining scenario analysis with delphi and the technological Substitution Model to analyze the development of the oled tv market
PICMET: Portland International Center for Management of Engineering and Technology Proceedings, 2009Co-Authors: Fang-mei Tseng, Ai Chia ChengAbstract:The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology. On the other hand, scenario analysis, as another breed to forecasting tool, provides rich and complex portraits of possible future development of technologies. However, it fails to provide quantifiable forecasts. Therefore, previous researchers combined these two methods to analyze the development of new technologies. Nevertheless, to make forecasting more holistic, the current opinions of seasoned experts should also be taken into account. However, because of the often-diverged expert opinions, a method for consensus building, such as the Delphi method, is also necessary. Therefore, we combined the scenario analysis with the Delphi method and the technological Substitution Model to analyze the development of a new technology, namely, the latest-generation television (TV), or the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10??years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display. ?? 2009 Elsevier Inc. All rights reserved.
Ai Chia Cheng - One of the best experts on this subject based on the ideXlab platform.
-
Combining scenario analysis with delphi and the technological Substitution Model to analyze the development of the OLED TV market
PICMET '09 - 2009 Portland International Conference on Management of Engineering & Technology, 2009Co-Authors: Fang-mei Tseng, Ai Chia ChengAbstract:The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology, and while it presents rich and complex portraits of possible future scenarios, it fails to provide quantifiable forecasts. Therefore, previous researchers have combined these two Models to analyze the development of new technologies. The current opinions of seasoned experts should also be taken into account for accurate forecasting. However, because there is often large variation among expert opinion, a method for coming to a consensus, such as the Delphi method, is also necessary. Therefore, we combined the technological Substitution Model with scenario analysis and the Delphi method to analyze the development of a new technology, namely, the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10 years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display.
-
assessing market penetration combining scenario analysis delphi and the technological Substitution Model the case of the oled tv market
Technological Forecasting and Social Change, 2009Co-Authors: Fang-mei Tseng, Ai Chia Cheng, Yi Nung PengAbstract:Abstract The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology. On the other hand, scenario analysis, as another breed to forecasting tool, provides rich and complex portraits of possible future development of technologies. However, it fails to provide quantifiable forecasts. Therefore, previous researchers combined these two methods to analyze the development of new technologies. Nevertheless, to make forecasting more holistic, the current opinions of seasoned experts should also be taken into account. However, because of the often-diverged expert opinions, a method for consensus building, such as the Delphi method, is also necessary. Therefore, we combined the scenario analysis with the Delphi method and the technological Substitution Model to analyze the development of a new technology, namely, the latest-generation television (TV), or the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10 years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display.
-
Assessing market penetration combining scenario analysis, Delphi, and the technological Substitution Model: The case of the OLED TV market
Technological Forecasting and Social Change, 2009Co-Authors: Fang-mei Tseng, Ai Chia Cheng, Yi Nung PengAbstract:The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology. On the other hand, scenario analysis, as another breed to forecasting tool, provides rich and complex portraits of possible future development of technologies. However, it fails to provide quantifiable forecasts. Therefore, previous researchers combined these two methods to analyze the development of new technologies. Nevertheless, to make forecasting more holistic, the current opinions of seasoned experts should also be taken into account. However, because of the often-diverged expert opinions, a method for consensus building, such as the Delphi method, is also necessary. Therefore, we combined the scenario analysis with the Delphi method and the technological Substitution Model to analyze the development of a new technology, namely, the latest-generation television (TV), or the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10 years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display. © 2009 Elsevier Inc. All rights reserved.
-
Combining scenario analysis with delphi and the technological Substitution Model to analyze the development of the oled tv market
PICMET: Portland International Center for Management of Engineering and Technology Proceedings, 2009Co-Authors: Fang-mei Tseng, Ai Chia ChengAbstract:The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology. On the other hand, scenario analysis, as another breed to forecasting tool, provides rich and complex portraits of possible future development of technologies. However, it fails to provide quantifiable forecasts. Therefore, previous researchers combined these two methods to analyze the development of new technologies. Nevertheless, to make forecasting more holistic, the current opinions of seasoned experts should also be taken into account. However, because of the often-diverged expert opinions, a method for consensus building, such as the Delphi method, is also necessary. Therefore, we combined the scenario analysis with the Delphi method and the technological Substitution Model to analyze the development of a new technology, namely, the latest-generation television (TV), or the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10??years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display. ?? 2009 Elsevier Inc. All rights reserved.
Yi Nung Peng - One of the best experts on this subject based on the ideXlab platform.
-
assessing market penetration combining scenario analysis delphi and the technological Substitution Model the case of the oled tv market
Technological Forecasting and Social Change, 2009Co-Authors: Fang-mei Tseng, Ai Chia Cheng, Yi Nung PengAbstract:Abstract The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology. On the other hand, scenario analysis, as another breed to forecasting tool, provides rich and complex portraits of possible future development of technologies. However, it fails to provide quantifiable forecasts. Therefore, previous researchers combined these two methods to analyze the development of new technologies. Nevertheless, to make forecasting more holistic, the current opinions of seasoned experts should also be taken into account. However, because of the often-diverged expert opinions, a method for consensus building, such as the Delphi method, is also necessary. Therefore, we combined the scenario analysis with the Delphi method and the technological Substitution Model to analyze the development of a new technology, namely, the latest-generation television (TV), or the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10 years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display.
-
Assessing market penetration combining scenario analysis, Delphi, and the technological Substitution Model: The case of the OLED TV market
Technological Forecasting and Social Change, 2009Co-Authors: Fang-mei Tseng, Ai Chia Cheng, Yi Nung PengAbstract:The technological Substitution Model, proposed in 1971, was designed to analyze the penetration process of new-generation technologies replacing old ones. It was expanded in 1979 to consider more than two generations and the Substitution process among various entities in the market. However, this expanded Model is often limited by a relative lack of data on the latest-generation technology. On the other hand, scenario analysis, as another breed to forecasting tool, provides rich and complex portraits of possible future development of technologies. However, it fails to provide quantifiable forecasts. Therefore, previous researchers combined these two methods to analyze the development of new technologies. Nevertheless, to make forecasting more holistic, the current opinions of seasoned experts should also be taken into account. However, because of the often-diverged expert opinions, a method for consensus building, such as the Delphi method, is also necessary. Therefore, we combined the scenario analysis with the Delphi method and the technological Substitution Model to analyze the development of a new technology, namely, the latest-generation television (TV), or the organic light-emitting diode (OLED) TV. We elaborate three possible scenarios, and forecast the market share of OLED TV and four other TV technologies in the global market over the next 10 years: cathode ray tube, rear projection, plasma display panel, and liquid crystal display. © 2009 Elsevier Inc. All rights reserved.
Vinh Sy Le - One of the best experts on this subject based on the ideXlab platform.
-
KSE - Building a Specific Amino Acid Substitution Model for Dengue Viruses
2018 10th International Conference on Knowledge and Systems Engineering (KSE), 2018Co-Authors: Vinh Sy LeAbstract:Phylogenetic trees inferred from protein sequences are strongly affected by amino acid Substitution Models. Although different amino acid Substitution Models have been proposed, only a few were estimated for specific species such as the FLU Model for influenza viruses. Among the most dangerous viruses for human health, dengue is always on top and the cause of dengue fever up to 100 million people per year. In this study, we built a specific amino acid Substitution Model for dengue protein sequences, called DEN. The dengue protein sequences were obtained from the NCBI dengue database and the Model was estimated using the maximum likelihood method. Experiments showed that the new Model DEN helped to build better phylogenetic trees than other existing Models. We strongly recommend researchers to use the DEN Model for analyzing dengue protein data.
-
Building a Specific Amino Acid Substitution Model for Dengue Viruses
2018 10th International Conference on Knowledge and Systems Engineering (KSE), 2018Co-Authors: Thu Le Kim, Cuong Dang Cao, Vinh Sy LeAbstract:Phylogenetic trees inferred from protein sequences are strongly affected by amino acid Substitution Models. Although different amino acid Substitution Models have been proposed, only a few were estimated for specific species such as the FLU Model for influenza viruses. Among the most dangerous viruses for human health, dengue is always on top and the cause of dengue fever up to 100 million people per year. In this study, we built a specific amino acid Substitution Model for dengue protein sequences, called DEN. The dengue protein sequences were obtained from the NCBI dengue database and the Model was estimated using the maximum likelihood method. Experiments showed that the new Model DEN helped to build better phylogenetic trees than other existing Models. We strongly recommend researchers to use the DEN Model for analyzing dengue protein data.
-
flu an amino acid Substitution Model for influenza proteins
BMC Evolutionary Biology, 2010Co-Authors: Cuong C Dang, Quang Si Le, Olivier Gascuel, Vinh Sy LeAbstract:Background The amino acid Substitution Model is the core component of many protein analysis systems such as sequence similarity search, sequence alignment, and phylogenetic inference. Although several general amino acid Substitution Models have been estimated from large and diverse protein databases, they remain inappropriate for analyzing specific species, e.g., viruses. Emerging epidemics of influenza viruses raise the need for comprehensive studies of these dangerous viruses. We propose an influenza-specific amino acid Substitution Model to enhance the understanding of the evolution of influenza viruses.
-
FLU, an amino acid Substitution Model for influenza proteins
BMC Evolutionary Biology, 2010Co-Authors: Cuong C Dang, Olivier Gascuel, Vinh Sy LeAbstract:Background: The amino acid Substitution Model is the core component of many protein analysis systems such as sequence similarity search, sequence alignment, and phylogenetic inference. Although several general amino acid Substitution Models have been estimated from large and diverse protein databases, they remain inappropriate for analyzing specific species, e.g., viruses. Emerging epidemics of influenza viruses raise the need for comprehensive studies of these dangerous viruses. We propose an influenza-specific amino acid Substitution Model to enhance the understanding of the evolution of influenza viruses. Results: A maximum likelihood approach was applied to estimate an amino acid Substitution Model (FLU) from ∼ 113, 000 influenza protein sequences, consisting of ∼ 20 million residues. FLU outperforms 14 widely used Models in constructing maximum likelihood phylogenetic trees for the majority of influenza protein alignments. On average, FLU gains ∼ 42 log likelihood points with an alignment of 300 sites. Moreover, topologies of trees constructed using FLU and other Models are frequently different. FLU does indeed have an impact on likelihood improvement as well as tree topologies. It was implemented in PhyML and can be downloaded from ftp://ftp.sanger.ac.uk/pub/1000genomes/lsq/FLU or included in PhyML 3.0 server at http://www.atgc-montpellier.fr/phyml/. Conclusions: FLU should be useful for any influenza protein analysis system which requires an accurate description of amino acid Substitutions.
Emmanuel Stamatakis - One of the best experts on this subject based on the ideXlab platform.
-
all cause mortality effects of replacing sedentary time with physical activity and sleeping using an isotemporal Substitution Model a prospective study of 201 129 mid aged and older adults
International Journal of Behavioral Nutrition and Physical Activity, 2015Co-Authors: Emmanuel Stamatakis, Kris Rogers, Ding Ding, David Berrigan, Josephine Y Chau, Mark Hamer, Adrian BaumanAbstract:Background Sedentary behaviour, sleeping, and physical activity are thought to be independently associated with health outcomes but it is unclear whether these associations are due to the direct physiological effects of each behaviour or because, across a finite 24-hour day, engagement in one behavior requires displacement of another. The aim of this study was to examine the replacement effects of sedentary behaviour (total sitting, television/computer screen time combined), sleeping, standing, walking, and moderate-to-vigorous physical activity on all-cause mortality using isotemporal Substitution Modelling.
