PSMART: Parameter Server based Multiple Additive Regression Trees System
نویسندگان
چکیده
In this paper, we describe a Parameter Server based Multiple Additive Regression Trees system, or PSMART for short. Empirically, PSMART scales MART to hundreds of billions of samples and thousands of features in production.
منابع مشابه
Generating natural F0 trajectory with additive trees
In HMM-based TTS, while the segmental quality of synthesized speech is quite acceptable, intonation, especially at the sentence level, tends to be somewhat bland. The maximum likelihood (ML) criterion used in HMM training and parameter trajectory generation is partially responsible for the blandness. Additionally, the F0 trajectory thus generated has a smaller dynamic range than that of natural...
متن کاملSpectral Modeling with Contextual Additive Structure for HMM-based Speech Synthesis
This paper proposes a spectral modeling technique based on additive structure of context dependencies for HMM-based speech synthesis. Contextual additive structure models can represent complicated dependencies between acoustic features and context labels using multiple decision trees. However, its computational complexity of the context clustering is too high for full context labels of speech s...
متن کاملPredictive factors of glycosylated hemoglobin using additive regression model
Introduction: Diabetes is a chronic disease, non-epidemic disease that costs a lot of money in each year. One of the diagnostic criteria for diabetes is Glycosylated Hemoglobin (HBA1C), which in this study the effective factors on it examined by additive regression model. Materials and Methods: In this cross-sectional study, 130 patients with diabetes type-2 were selected based on simple random...
متن کاملContext-dependent acoustic modeling based on hidden maximum entropy model for statistical parametric speech synthesis
semi Markov models (HSMMs) are typically used in statistical parametric speech synthesis to represent probability densities of acoustic features given contextual factors. This paper addresses three major limitations of this decision tree-based structure: i) the decision tree structure lacks adequate context generalization; ii) it is unable to express complex context dependencies; iii) parameter...
متن کاملDiscrete Time Analysis of Multi-Server Queueing System with Multiple Working Vacations and Reneging of Customers
This paper analyzes a discrete-time $Geo/Geo/c$ queueing system with multiple working vacations and reneging in which customers arrive according to a geometric process. As soon as the system gets empty, the servers go to a working vacations all together. The service times during regular busy period, working vacation period and vacation times are assumed to be geometrically distributed. Customer...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2017