A multi-valued and sequential-labeled decision tree method for recommending sequential patterns in cold-start situations
Sign Up to like & getrecommendations! Published in 2020 at "Applied Intelligence"
DOI: 10.1007/s10489-020-01806-0
Abstract: We plan to recommend some initial suitable single-itemed sequences like a flight itinerary based on a preference pattern in the form of personalized sequential pattern to each cold-start user. However, sequential pattern mining has never… read more here.
Keywords: pattern; cold start; multi valued; sequential pattern ... See more keywords
An ontology-based hybrid e-learning content recommender system for alleviating the cold-start problem
Sign Up to like & getrecommendations! Published in 2021 at "Education and Information Technologies"
DOI: 10.1007/s10639-021-10508-0
Abstract: An e-learning recommender system (RS) aims to generate personalized recommendations based on learner preferences and goals. The existing RSs in the e-learning domain still exhibit drawbacks due to its inability to consider the learner characteristics… read more here.
Keywords: recommender system; start problem; ontology; cold start ... See more keywords
Analysis of AdSCR Systems for NOx Removal During the Cold-Start Period of Diesel Engines
Sign Up to like & getrecommendations! Published in 2019 at "Topics in Catalysis"
DOI: 10.1007/s11244-019-01138-5
Abstract: Herein, we extend the study of the AdSCR system (AdSCR = adsorption + selective catalytic reduction), consisting in a physical mixture of a conventional NH3-SCR catalyst and of a NOx storage material. We have shown in previous work that… read more here.
Keywords: storage; diesel; period; cold start ... See more keywords
Addressing the user cold start with cross-domain collaborative filtering: exploiting item metadata in matrix factorization
Sign Up to like & getrecommendations! Published in 2018 at "User Modeling and User-Adapted Interaction"
DOI: 10.1007/s11257-018-9217-6
Abstract: Providing relevant personalized recommendations for new users is one of the major challenges in recommender systems. This problem, known as the user cold start has been approached from different perspectives. In particular, cross-domain recommendation methods… read more here.
Keywords: collaborative filtering; cross domain; user cold; cold start ... See more keywords
Efficient thermal management strategies for cold starts of a proton exchange membrane fuel cell system
Sign Up to like & getrecommendations! Published in 2020 at "Applied Energy"
DOI: 10.1016/j.apenergy.2020.115813
Abstract: Abstract A fast, reliable and harmless cold start for proton exchange membrane fuel cell (PEMFC) systems is essential for transportation applications. This paper discusses an experimental study of different thermal management strategies of cold start… read more here.
Keywords: system; cold start; thermal management; management strategies ... See more keywords
Enabling real-time optimization of dynamic processes of proton exchange membrane fuel cell: Data-driven approach with semi-recurrent sliding window method
Sign Up to like & getrecommendations! Published in 2021 at "Applied Energy"
DOI: 10.1016/j.apenergy.2021.117659
Abstract: Abstract The reliability of proton exchange membrane fuel cell (PEMFC) tightly depends on the suitable operating conditions during dynamic operations. This study proposes an optimization framework to determine the optimal control strategy for PEMFC cold… read more here.
Keywords: optimization; time; real time; method ... See more keywords
Cold-start performance investigation of fuel cell electric vehicles with heat pump-assisted thermal management systems
Sign Up to like & getrecommendations! Published in 2021 at "Energy"
DOI: 10.1016/j.energy.2021.121001
Abstract: Abstract In this study, the cold-start performance of fuel cell (FC) electric vehicles was investigated via integration of a heat pump system with a thermal management system (TMS). A model for the proposed heat pump-assisted… read more here.
Keywords: pump assisted; heat pump; start performance; cold start ... See more keywords
Wear resistance mechanism of engine piston skirt coating under cold start condition
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Failure Analysis"
DOI: 10.1016/j.engfailanal.2020.104912
Abstract: Abstract At the beginning of cold start, the lubricating oil temperature is low, the kinematic viscosity is high, the splash lubrication effect is poor, and the good lubricating oil film cannot be formed, therefore, the… read more here.
Keywords: skirt coating; cold start; piston skirt; start ... See more keywords
The performance improvement of direct injection engines in cold start conditions integrating with phase change material: Energy and exergy analysis
Sign Up to like & getrecommendations! Published in 2021 at "Journal of energy storage"
DOI: 10.1016/j.est.2021.102895
Abstract: Abstract The cold start problem is still one of the most significant drawbacks of diesel engines, especially in cold climates despite all technological improvements of fuel injection and control systems. Starting diesel engines becomes more… read more here.
Keywords: performance; energy exergy; engine; cold start ... See more keywords
Numerical study of formaldehyde and unburned methanol emissions of direct injection spark ignition methanol engine under cold start and steady state operating conditions
Sign Up to like & getrecommendations! Published in 2017 at "Fuel"
DOI: 10.1016/j.fuel.2017.04.059
Abstract: Abstract The effects of overall equivalence ratio, injection timing, and ignition timing on formaldehyde and unburned methanol emissions, cylinder temperature histories, and formaldehyde emission histories of a spark ignition direct injection stratified charge methanol engine… read more here.
Keywords: unburned methanol; formaldehyde unburned; cold start; methanol emissions ... See more keywords
Cold-start NOx emissions: Diesel and waste lubricating oil as a fuel additive
Sign Up to like & getrecommendations! Published in 2021 at "Fuel"
DOI: 10.1016/j.fuel.2020.119430
Abstract: Abstract NOx emissions from diesel engines are a concern from both environmental and health perspectives. Recently this attention has targeted cold-start emissions highlighting that emission after-treatment systems are not effective in this period. Using a… read more here.
Keywords: start; cold start; rate; start nox ... See more keywords