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Cold start

Cold Start Link Prediction

Cold Start Link Prediction

... duce cold start link prediction as the problem of predict- ing the structure of a social network when the network itself is totally missing while some other information re- garding the nodes is ...

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Characterisation of different biofuel blends for cold start and altitude relight in aeroengines

Characterisation of different biofuel blends for cold start and altitude relight in aeroengines

... 6-7: Cold Start (239 K) with duplex nozzle – (a) FAR vs  P 3-4 , (b) W 3 , (c) Theta: This graph presents a greater FAR difference between each fuel compared to the values at 283 ...a cold ...

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Assessment of Gasoline Direct Injection Engine Cold Start Particulate Emission Sources

Assessment of Gasoline Direct Injection Engine Cold Start Particulate Emission Sources

... requirements [2]. The in-cylinder injection cools the charge, thereby increases the engine knock resistance and volumetric efficiency [3, 4]. The GDI engines, however, have much higher particulate matter (PM) emission ...

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Cold start fuel management of port-fuel-injected internal combustion engines

Cold start fuel management of port-fuel-injected internal combustion engines

... order to understand why this is the case one must consider the intake airflow. During the cold start period engine speed is increasing and MAP is decreasing, this results [r] ...

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Using Posters to Recommend Anime and Mangas in a Cold-Start Scenario

Using Posters to Recommend Anime and Mangas in a Cold-Start Scenario

... Kyoto, Japan kashima@i.kyoto-u.ac.jp Abstract—Item cold-start is a classical issue in recommender systems that affects anime and manga recommendations as well. This problem can be framed as follows: how to ...

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Active learning and user segmentation for the cold-start problem in recommendation systems

Active learning and user segmentation for the cold-start problem in recommendation systems

... 3.1 Framework Components Figure 1 shows the steps involved in the PUPP framework. Initially, we employ cluster analysis to assign customers to groups, using a soft clustering approach (Mishra et al., 2015). This results ...

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A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting

A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting

... Meissner; cold start ...a cold start (CS) system to start up from a de-energized state ...to start up from 220 mV, [2] uses a ring oscillator with post-fabrication threshold ...

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An experimental study on NOx emissions of a heavy-duty diesel engine during cold start and idling

An experimental study on NOx emissions of a heavy-duty diesel engine during cold start and idling

... during cold start and engine ...a cold operational environment for the engine and highlight the associated challenges for NOx control, tests are conducted at an intake charge temperature of 10 ...

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Cold-Start recommender system problem within a multidimensional data warehouse

Cold-Start recommender system problem within a multidimensional data warehouse

... This cold-start recommender system is used until the system has gathered enough user manipulation data in order to run a more appro- priate standard recommender ...

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Cold-Start recommender system problem within a multidimensional data warehouse

Cold-Start recommender system problem within a multidimensional data warehouse

... into the query q 5 at position 3 in s 1 . Match function This Match function has been studied in [18] and [10] where two sequence matching functions are detailed (each being based on an edit distance and approximate ...

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Matrix co-factorization for cold-start recommendation

Matrix co-factorization for cold-start recommendation

... ABSTRACT Song recommendation from listening counts is now a clas- sical problem, addressed by different kinds of collabora- tive filtering (CF) techniques. Among them, Poisson ma- trix factorization (PMF) has raised a ...

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Matrix co-factorization for cold-start recommendation

Matrix co-factorization for cold-start recommendation

... ABSTRACT Song recommendation from listening counts is now a clas- sical problem, addressed by different kinds of collabora- tive filtering (CF) techniques. Among them, Poisson ma- trix factorization (PMF) has raised a ...

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Assessment of the factors influencing PN emission in a DISI engine under cold-start condition

Assessment of the factors influencing PN emission in a DISI engine under cold-start condition

... However, the late gasoline injection experiments in Chapter 5 showed that soot formation from the pyrolysis of the vapor from liquid fuel films is suppressed as com[r] ...

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Control strategy for hydrocarbon emissions in turbocharged direct injection spark ignition engines during cold-start

Control strategy for hydrocarbon emissions in turbocharged direct injection spark ignition engines during cold-start

... Smaller turbocharged direct injection spark ignition engines, used for better fuel economy, introduce new emissions issues that degrade emissions behaviour during cold[r] ...

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Analysis of NOx Emissions during Crank-Start and Cold Fast-Idle in a GDI Engine

Analysis of NOx Emissions during Crank-Start and Cold Fast-Idle in a GDI Engine

... Exhaust Valve Open / Close 52°bBDC / 10°bTDC @ 0.2 mm lift Max. exhaust valve lift 10.3 mm @ 125°aTDC The fuel pressure during crank-start of a GDI engine depends significantly on engine speed; as the engine ...

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Cycle-by-Cycle Analysis of Cold Crank-Start in a GDI Engine

Cycle-by-Cycle Analysis of Cold Crank-Start in a GDI Engine

... targeted cold fast-idle ...engine cold crank-start is responsible for a disproportionate amount of the cold-start phase ...the cold crank-start is subject to the lowest ...

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Malaise dans les start-up. Entre désir héroïque et anxiété créatrice

Malaise dans les start-up. Entre désir héroïque et anxiété créatrice

... la start-up apparaît pour certains comme un moyen plus sûr d’imprimer sa marque sur le monde (Roche, ...de start-uppers sont les héritiers de ceux qui animaient les mouvements de la contre-culture des ...

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Cold weather masonry construction

Cold weather masonry construction

... for cold weather work become obvious from previous discussion establishing the superior strength of cement over lime mortars and the importance of early strength during cold ...

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La levée de fonds. Quelles sont les pièces manquantes au développement des start-ups françaises ?

La levée de fonds. Quelles sont les pièces manquantes au développement des start-ups françaises ?

... Nous pouvons constater dans la figure ci-dessus que les deux premiers dans le classement, CM-CIC Investissement et BNP Paribas Développement, filiale de grandes banques, sont les [r] ...

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Stratégie : quel business-model d'Internet conviendrait le mieux à une start-up ?

Stratégie : quel business-model d'Internet conviendrait le mieux à une start-up ?

... 33 Comme nous avons pu le voir dans ce rapport, l’importance de trouver un business-modèle pour une start-up est déterminant dans la suite de son développement. Afin de caractériser correctement ce modèle ...

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