A Unified Classification Ecosystem for Auctions

2012 ◽  
pp. 15-37
Author(s):  
Dimitrios M. Emiris ◽  
Charis A. Marentakis
Keyword(s):  
Operational Research ◽  
Price Formation ◽  
Design Parameters ◽  
Systematic Research ◽  
Continuous Growth ◽  
Seminal Paper ◽  
New Developments ◽  
Classification Approach ◽  
Application Requirements ◽  
Games Theory

Auctions have known considerable and continuous growth during the last decades due to their interesting properties in price formation when the value of goods traded is not known or varies. The systematic research in the area of auctions has advanced considerably since William Vickrey’s seminal paper on 1961. Although earlier research has been based mainly on Microeconomics and Games Theory, recent advances extended relevant research in Operational Research and Information Technology. Today, auctions and their applications form a challenging topic not only for economists but for operational researchers, marketers, logisticians and management engineers as well. This paper provides an overview of recent literature in auction theory, focusing on contemporary auction techniques and proposes an Auctions Classification Ecosystem (ACE) that encompasses previous works and new developments in the area. The proposed unified classification approach encompasses auction features and mechanism design parameters in a single scheme. This scheme facilitates the understanding of auction characteristics and supports auction practitioners in designing the appropriate format depending on the application requirements.

A Unified Classification Ecosystem for Auctions

2010 ◽  
Vol 1 (3) ◽  
pp. 53-74 ◽  
Author(s):  
Dimitrios M. Emiris ◽  
Charis A. Marentakis
Keyword(s):  
Recent Literature ◽  
Price Formation ◽  
Design Parameters ◽  
Systematic Research ◽  
Relevant Research ◽  
Continuous Growth ◽  
Seminal Paper ◽  
New Developments ◽  
Application Requirements ◽  
Games Theory

Auctions have known considerable and continuous growth during the last decades due to their interesting properties in price formation when the value of goods traded is not known or varies. The systematic research in the area of auctions has advanced considerably since William Vickrey’s seminal paper on 1961. Although earlier research has been based mainly on Microeconomics and Games Theory, recent advances extended relevant research in Operational Research and Information Technology. Today, auctions and their applications form a challenging topic not only for economists but for operational researchers, marketers, logisticians and management engineers as well. This paper provides an overview of recent literature in auction theory, focusing on contemporary auction techniques and proposes an Auctions Classification Ecosystem (ACE) that encompasses previous works and new developments in the area. The proposed unified classification approach encompasses auction features and mechanism design parameters in a single scheme. This scheme facilitates the understanding of auction characteristics and supports auction practitioners in designing the appropriate format depending on the application requirements.

Decision-Making Elements for the Design of Emerging Multi-Dimensional Auctions

2012 ◽  
pp. 80-104
Author(s):  
Charis A. Marentakis ◽  
Dimitrios M. Emiris
Keyword(s):  
Decision Making ◽  
Operational Research ◽  
Contemporary Literature ◽  
Price Formation ◽  
Graphical Form ◽  
Auction Design ◽  
Continuous Growth ◽  
Games Theory ◽  
Auction Formats ◽  
Decision Elements

Auctions have known considerable and continuous growth during the past decades due to their logic and efficiency in price formation when the value of goods traded is not known or varies. Although earlier research has been based mainly on Microeconomics and Games Theory, recent advances extended relevant research in Operational Research and Information Technology. Today, auctions and their applications form a challenging topic not only for economists but for operational researchers, marketers, logisticians and management engineers. This paper examines contemporary emerging auction formats, including auctions in which bids consist of many other parameters. The study of these emerging auction formats proceeds through the analysis of critical auction parameters that directly affect the decision-making process and the problems that auction participants face. This paper presents, with a presentation in graphical form, the decision framework for the majority of approaches presented in contemporary literature to highlight the association between decision elements and auction design.

Decision-Making Elements for the Design of Emerging Multi-Dimensional Auctions

2010 ◽  
Vol 1 (4) ◽  
pp. 59-82 ◽  
Author(s):  
Charis A. Marentakis ◽  
Dimitrios M. Emiris
Keyword(s):  
Decision Making ◽  
Contemporary Literature ◽  
Price Formation ◽  
Graphical Form ◽  
Relevant Research ◽  
Continuous Growth ◽  
The Past ◽  
Games Theory ◽  
Auction Formats ◽  
Decision Elements

Auctions have known considerable and continuous growth during the past decades due to their logic and efficiency in price formation when the value of goods traded is not known or varies. Although earlier research has been based mainly on Microeconomics and Games Theory, recent advances extended relevant research in Operational Research and Information Technology. Today, auctions and their applications form a challenging topic not only for economists but for operational researchers, marketers, logisticians and management engineers. This paper examines contemporary emerging auction formats, including auctions in which bids consist of many other parameters. The study of these emerging auction formats proceeds through the analysis of critical auction parameters that directly affect the decision-making process and the problems that auction participants face. This paper presents, with a presentation in graphical form, the decision framework for the majority of approaches presented in contemporary literature to highlight the association between decision elements and auction design.

A performance investigation of small-bore sewers

2007 ◽  
Vol 55 (4) ◽  
pp. 85-91 ◽  
Author(s):  
F.A. Memon ◽  
A. Fidar ◽  
K. Littlewood ◽  
D. Butler ◽  
C. Makropoulos ◽  
...  
Keyword(s):  
Physical Model ◽  
Water Cycle ◽  
Design Guidelines ◽  
Design Parameters ◽  
New Developments ◽  
Tissue Paper ◽  
Solids Transport ◽  
Implementation Methodology ◽  
Gradient Variation ◽  
The Impact

This paper describes a full-scale physical model and its application to investigate the effectiveness/performance of small-bore sewers for a range of operational and design parameters. The implementation methodology involves observing the movement of synthetic gross solids in three small bore sewers (150, 100 and 75 mm diameter) for different volumes of simulated flush waves and gradients. The simulated flush waves were generated, using an automated wave sequencer, for three different flush volumes (3, 4.5 and 6 litres). To investigate the impact of solid shape factor, a number of tests were carried out using synthetic solids in combination with toilet tissue paper. In total, more than 1,000 tests were performed for different operational and design parameter combinations. Results obtained to date have confirmed earlier studies, particularly with respect to the role of flush volume in solids transport, and identified the impact of gradient variation and its significance particularly in small-bore sewers receiving low flush volume. Results from the physical model application exercise will be used to propose new design guidelines for wastewater collection systems with specific consideration to new developments and inform the decision support system, currently being developed as part of a research project on water cycle management for new developments (WaND).

Advances in Fabric Selection for Dust Collection Equipment in WTE Plants

2008 ◽  
Author(s):  
Robin C. Linton
Keyword(s):  
Operating Experience ◽  
Waste To Energy ◽  
Design Parameters ◽  
Stream Chemistry ◽  
Collection System ◽  
Dust Collection ◽  
New Developments ◽  
Cleaning System ◽  
Refuse Derived Fuel ◽  
Selection For

Fabric selection is a critical component in the operation of a dust collection system venting a waste to energy boiler. This paper will discuss the factors to be evaluated when selecting the proper fabric to use in filtration systems venting waste and refuse derived fuel fired boilers. Consideration will be given to the type of scrubbing equipment, the type of cleaning system, the design parameters of the unit, and the gas stream chemistry. Operating experience from existing filtration systems will also be presented. Special emphasis will be made on equipment design, particulate capture and filter service life. A look at new developments in fabric filtration, including fabric blends, micro-denier filtration, and the use of pleated filter technology, will complete this overview.

scholarly journals Characterization of a high-speed radio-frequency sampling and demultiplexing circuit based on the cascade connection of pin photodiodes

2019 ◽  
pp. 939-949
Author(s):  
CARLOS VILLA ANGULO ◽  
IVAN OLAF HERNANDEZ-FUENTES ◽  
RICARDO MORALES-CARBAJAL ◽  
RAFAEL VILLA-ANGULO ◽  
JOSE RAMON VILLA-ANGULO
Keyword(s):  
Radio Frequency ◽  
High Speed ◽  
Optical Power ◽  
Theoretical Models ◽  
Design Parameters ◽  
Cascade Connection ◽  
Application Requirements ◽  
Pin Photodiodes ◽  
Principal Design

Herein, we apply theoretical models to characterize the transfer function and frequency response of a complex optoelectronic circuit that comprises a primary ultrafast sampling circuit followed by a cascade connection of N demultiplexing stages. The successive radio-frequency optoelectronic samplers were based on the cascade connection of positive-intrinsic-negative-photodiodes (PIN-PDs). We developed a procedure to calculate the principal design parameters that allows us to use optical power for each sampling and demultiplexing stage, such that the circuit can be designed based on the application requirements. The results obtained from the theoretical models were compared with the measurements obtained from the 2.5 GS/s sampling circuit connected in cascade with a 1.25 GS/s and a 625 MS/s demultiplexing circuit implemented using commercial PIN-PDs

Load Bearing Capacity of Oil Film Bearing Research

2010 ◽  
Vol 42 ◽  
pp. 255-258
Author(s):  
Hong Chao Fan ◽  
Jing Lin Tong ◽  
Xin Hua Yi ◽  
Jin Bao He ◽  
Jian Xi Yang
Keyword(s):  
Bearing Capacity ◽  
Design Method ◽  
Structural Characteristics ◽  
Load Capacity ◽  
Parameters Optimization ◽  
Design Parameters ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Oil Film ◽  
Application Requirements

The oil film have many excellences such as bigger load bearing capacity, longer life, wider velocity range, lower friction etc. The traditional design method is experience test. Even the design parameters could meet the application requirements, but they can not exert the best performance of the oil film bearing. The relationship between load bearing capacity and materials, lubricants, design parameters and structural characteristics of oil film bearing was analysed. To improve the load capacity and run at the optimal state, the objective function was built to optimize the main parameters. Optimization results showed that the load bearing capacity has been greatly improved.

scholarly journals Experimental analysis of zero-natural-frequency damper for transmission line large cross project based on NES

2021 ◽  
Vol 2076 (1) ◽  
pp. 012109
Author(s):  
Bin Zhao ◽  
Jiajun Si ◽  
Zhao Zhang ◽  
Jingshan Han
Keyword(s):  
Transmission Line ◽  
Natural Frequency ◽  
Complex Terrain ◽  
Nonlinear Energy Sink ◽  
Design Parameters ◽  
Vibration Effect ◽  
Actual Design ◽  
Practical Engineering ◽  
Application Requirements ◽  
Cross Project

Abstract The operation experience of transmission line large cross project shows that the traditional anti-aeolian-vibration devices had poor adaptability to complex terrain and micro meteorological conditions, and they were difficult to meet the application requirements of super large cross project at this stage. A zero-natural-frequency damper was designed by introducing nonlinear energy sink in this paper, and the solid prototypes were processed. According to the actual design parameters of conductor using in a large cross project, the anti-vibration effect was tested by using the indoor simulation test span. The test results showed that the anti-vibration effect of the scheme based on the zero-natural-frequency damper could meet the needs of practical engineering. The installation of this damper could improve conductors’ and fittings’ adaptability to complex terrain and enhance the wind and anti-vibration ability of transmission line.

scholarly journals From Finite Automata to Regular Expressions and Back — A Summary on Descriptional Complexity

2015 ◽  
Vol 26 (08) ◽  
pp. 1009-1040 ◽  
Author(s):  
Hermann Gruber ◽  
Markus Holzer
Keyword(s):  
Finite Automata ◽  
Upper And Lower Bounds ◽  
Regular Expressions ◽  
Average Case ◽  
Seminal Paper ◽  
New Developments ◽  
Complexity Bounds ◽  
Descriptional Complexity ◽  
Elimination Algorithm ◽  
Interesting Special Case

The equivalence of finite automata and regular expressions dates back to the seminal paper of Kleene on events in nerve nets and finite automata from 1956. In the present paper we tour a fragment of the literature and summarize results on upper and lower bounds on the conversion of finite automata to regular expressions and vice versa. As an interesting special case also one-unambiguous regular expressions, a sort of a deterministic version of a regular expression, are considered. We also briefly recall the known bounds for the removal of spontaneous transitions (ε-transitions) on non-ε-free nondeter-ministic devices. Moreover, we report on recent results on the average case descriptional complexity bounds for the conversion of regular expressions to finite automata and new developments on the state elimination algorithm that converts finite automata to regular expressions.

Development of a Novel Coupling Mechanism for Modular Self-Reconfigurable Mobile Robots

2015 ◽  
Author(s):  
Wael Saab ◽  
Pinhas Ben-Tzvi
Keyword(s):  
Mobile Robots ◽  
Scale Up ◽  
High Strength ◽  
Design Parameters ◽  
Coupling Mechanism ◽  
Dynamic Simulations ◽  
Challenging Tasks ◽  
Application Requirements ◽  
Fail Safe ◽  
Coupling Mechanisms

This paper presents the development of a novel coupling mechanism for modular self-reconfigurable mobile robots. Modular self-reconfigurable mobile robotic systems consist of a large number of self-sufficient modules that can transform into various configurations. One of the most challenging tasks in this field is designing a reliable and flexible coupling mechanism that physically connects modules to form larger and more articulated structures to scale up locomotion and manipulation functions. In this research we propose GHEFT: a Genderless, High strength, Efficient, Fail-safe, and high misalignment Tolerant coupling mechanism that aids the process of self-reconfiguration, and self-repair. Many existing coupling mechanisms fail to possess these crucial design features. The proposed mechanism ensures an efficient and high strength connection due to non-back drivable actuation and specially designed clamping profiles that enables modules to tolerate large misalignments and engage/disengage without gender restrictions in the presence of one-sided malfunction; thus, increasing both the versatility and robustness of the entire robotic system. In this paper, misalignment analysis is performed to formulate simple relations based on clamping profile design parameters to achieve specific misalignment tolerances based on application requirements. These formulations are used to compute maximum misalignment tolerances. Dynamic simulations are then performed to determine maximum misalignment tolerance capabilities and verify computed tolerances.

Sign in / Sign up

Export Citation Format

Share Document