Buscar en RiuNet

Listar

Todo RiuNet

Mi cuenta

Acceder

Ayuda RiuNet

Admin. UPV

Listar por palabra clave "Auction"

Mostrando ítems 1-11 de 11

Collusion detection in public procurement auctions with machine learning algorithms

García-Rodríguez, Manuel J.; Rodríguez-Montequín, Vicente; Ballesteros-Pérez, Pablo; Love, Peter E. D.; Signor, Regis (Elsevier, 2022-01)

[EN] Collusion is an illegal practice by which some competing companies secretly agree on the prices (bids) they will submit to a future auction. Worldwide, collusion is a pervasive phenomenon in public sector procurement. ...
Detecting Abnormal and Collusive Bids in Capped Tendering

Ballesteros Pérez, Pablo; González-Cruz, María Carmen; Cañavate Grimal, Antonio; Pellicer, Eugenio (Elsevier, 2013-05)

Recent developments in the area of Bid Tender Forecasting have enabled bidders to implement new types of easy-to-use tools for increasing their chances of winning contracts. Although these new tools (such as iso-Score Curve ...
Estimating future bidding performance of competitor bidders in capped tenders

Ballesteros Pérez, Pablo; González-Cruz, María Carmen; Fernández Diego, Marta; Eugenio Pellicer (Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2014-07)

Research in Bid Tender Forecasting Models (BTFM) has been in progress since the 1950s. None of the developed models were easy-to-use tools for effective use by bidding practitioners because the advanced mathematical apparatus ...
Factors Affecting Contractor's Bidding Success for International Infrastructure Projects in Australia

Aznar, Beltrán; Pellicer Armiñana, Eugenio; Davis, Steven; Ballesteros Pérez, Pablo (2017)

[EN] This paper examines the effects of different factors on the success or failure of bids for infrastructure projects in Australia. Logistic regression analysis was used to empirically determine which factors have the ...
Improving the estimation of probability of bidder participation in procurement auctions

Ballesteros Pérez, Pablo; Skitmore, M.; Pellicer Armiñana, Eugenio; Gutiérrez-Bahamondes, Jimmy H. (Elsevier, 2016)

Anticipating the number and identity of bidders has significant influence in many theoretical results of the auction itself and bidders bidding behaviour. This is because when a bidder knows in advance which specific ...
La nueva regulación de contratación pública. Análisis y propuesta de mejora

Agustí Mercader, Marta (Universitat Politècnica de València, 2020-08-11)

[ES] Como sabemos, entró en vigor el pasado día 9 de marzo la nueva regulación sobre contratación pública. De este modo se ha superado la dispersión normativa, que en algunos aspectos llegaba a la aplicación de manera ...
Mathematical relationships between scoring parameters in capped tendering

Ballesteros Pérez, Pablo; González-Cruz, María-Carmen; Cañavate-Grimal, Antonio (Elsevier, 2012)

[EN] Mathematical relationships between Scoring Parameters can be used in Economic Scoring Formulas (ESF) in tendering to distribute the score among bidders in the economic part of a proposal.Each contracting authority ...
Multi-agent Generic Market Simulator for Virtual Markets using SPADE

Barbas Rebollo, David (Universitat Politècnica de València, 2022-09-13)

[ES] Actualmente, en el ámbito de las negociaciones entre entidades es importante reseñar que se está produciendo un cambio sustancial, puesto que se está evolucionando hacia un entorno virtual y automatizado. No sólo eso, ...
On Competitive Bidding: Scoring and Position Probability Graphs

Ballesteros-Perez, Pablo; González-Cruz, María-Carmen; Cañavate-Grimal, Antonio (Elsevier, 2013)

[EN] Iso-score curves graph (iSCG) and mathematical relationships between Scoring Parameters (SP) and Forecasting Parameters (FP) can be used in Economic Scoring Formulas (ESF) used in tendering to distribute the score ...
Subastas de oferta sellada en un entorno Ethereum

Moreno Peña, Alberto (Universitat Politècnica de València, 2023-09-15)

[ES] Este proyecto presenta una solución para las subastas selladas Vickrey haciendo uso de Pedersen Commitment en el entorno Blockchain, en particular, sobre Ethereum. Se pretende mantener el anonimato de cada uno de los ...
The iso-Score Curve Graph. A new tool for competitive bidding

Ballesteros Pérez, Pablo; González-Cruz, María Carmen; Pastor Ferrando, Juan Pascual; Fernández Diego, Marta (Elsevier, 2012-03)

The present work describes a new tool that helps bidders improve their competitive bidding strategies. This new tool consists of an easy-to-use graphical tool that allows the use of more complex decision analysis tools in ...