TY - GEN
T1 - Similarity-based cost estimations for eto-products
AU - Alblas, Gerrit
AU - Coenen, Jenny
PY - 2018
Y1 - 2018
N2 - Correct and accurate cost estimations are critical for shipyard companies. Traditionally cost estimations for one-off ship designs are based on expert opinions and statistical-based methods. In this paper, we introduce a method for improving cost estimations in the pre-contract stage of a one-off design shipbuilding project. Pre-contract means that the available information is limited. The introduced method is based on the idea that, although a new vessel has never been built before, cost of similar building assemblies can be found in the production information of earlier produced vessels. The assessment of similarities is performed by means of error-tolerant graph matching. Research to date shows that only taking the basic activities into account, without taking the context into account, does not always lead to a good and reliable result. The example in this paper is based on the ship block assembly process.
AB - Correct and accurate cost estimations are critical for shipyard companies. Traditionally cost estimations for one-off ship designs are based on expert opinions and statistical-based methods. In this paper, we introduce a method for improving cost estimations in the pre-contract stage of a one-off design shipbuilding project. Pre-contract means that the available information is limited. The introduced method is based on the idea that, although a new vessel has never been built before, cost of similar building assemblies can be found in the production information of earlier produced vessels. The assessment of similarities is performed by means of error-tolerant graph matching. Research to date shows that only taking the basic activities into account, without taking the context into account, does not always lead to a good and reliable result. The example in this paper is based on the ship block assembly process.
KW - Cost Estimation
KW - Engineering-to-Order
KW - Graph Matching
UR - http://www.scopus.com/inward/record.url?scp=85057355918&partnerID=8YFLogxK
U2 - 10.3233/978-1-61499-902-7-279
DO - 10.3233/978-1-61499-902-7-279
M3 - Conference contribution
AN - SCOPUS:85057355918
T3 - Advances in Transdisciplinary Engineering
SP - 279
EP - 284
BT - Advances in Manufacturing Technology XXXII
A2 - Case, Keith
A2 - Thorvald, Peter
PB - IOS Press
CY - Amsterdam, The Netherlands
T2 - 16th International Conference on Manufacturing Research, ICMR 2018
Y2 - 11 September 2018 through 13 September 2018
ER -