News recommendation has been a must-have service for most mobile device users to know what has happened in the world. In this paper, we focus on recommending latest news articles to new users, which consists of the new user coldstart challenge and the new item (i.e., news article) coldstart challenge, and is thus termed as dual cold-start recommendation (DCSR). As a response, we propose a solut...

Collaborative filtering suffers from the problems of data sparsity and cold start, which dramatically degrade recommendation performance. To help resolve these issues, we propose TrustSVD, a trust-based matrix factorization technique. By analyzing the social trust data from four real-world data sets, we conclude that not only the explicit but also the implicit influence of both ratings and trus...

Recommendation algorithms and multi-class classifiers can support users of social bookmarking systems in assigning tags to their bookmarks. Content based recommenders are the usual approach for facing the cold start problem, i. e., when a bookmark is uploaded for the first time and no information from other users can be exploited. In this paper, we evaluate several recommendation algorithms in ...

4 Implementation remarks 12 4.1 Calling sequence in direct communication . . . . . . . . 12 4.2 Calling sequence in reverse communication . . . . . . . . 13 4.3 More on some arguments . . . . . . . . . . . . . . . . . 15 4.4 More on some output modes . . . . . . . . . . . . . . . . 15 4.5 Cold start and warm restart . . . . . . . . . . . . . . . . 16 4.6 Usage for very large scale problems . . ...

abstract production is a process by which a productive activity will require some conditions (before and after the start of the production). one of the most important pre-required factors for start up a production unit is suitable business environment. one of the most important factors that must be provided after the start of production -during the production process and the time to market and ...

The Spherical Tokamak (ST) is the low aspect ratio limit of the conventional tokamak, and appears to offer attractive physics properties in a simpler device. The START (Small Tight Aspect Ratio Tokamak) experiment provided the world’s first demonstration of the properties of hot plasmas in an ST configuration, and was operational at Culham from January 1991 to March 1998, obtaining plasma curre...

This study was aimed to explore the effects of different post-injection parameters on cracking, formation mechanism, composition, and carbon atoms distribution exhaust hydrocarbon (HC) compounds diesel engine. The influence three fuel masses (PIM) six dwell duration with start injection (SOI) timings were assessed an operating speed 1000 rpm a basic engine load 0.5 MPa. Post-injection strategy ...

As emission regulations for large two-stroke marine Diesel engines increase as well, the manufacturers face similar problems small-sized engine builders. The fuel injection, spray formation and subsequent combustion process remain among main drivers emissions of direct-injection, compression-ignition internal engines. Since injection nozzle design differs significantly, not only in size but esp...

CONTEXT Dysmenorrhea, the occurrence of painful menstrual cramping of the uterus, is a major cause of activity restriction and absences from school and work among young women. Standard pharmaceuticals used to treat dysmenorrhea are not effective for all women and have side effects that limit their use. Studies elsewhere have shown beneficial effects for use of vitamin K1 as an acupoint treatmen...

background: amylin and salmon calcitonin belong to the calcitonin family of peptides and have high affinity binding sites in the rat spinal cord. the aim of this study was to characterize receptors for amylin and salmon calcitonin functionally in the spinal cord of rats. we assessed the expression of c-fos in response to intraplantar formalin in the lumbar regions of the spinal cord in consciou...