Bayesian Tensor Factorization Linked to External Data (BaTFLED)
The vast majority of current machine learning algorithms are designed to predict single responses or a vector of responses, yet many types of response are more naturally organized as matrices or higher-order tensor objects where characteristics are shared across modes. We present a new machine learning algorithm BaTFLED (Bayesian Tensor Factorization Linked to External Data) that predicts values in a three-dimensional response tensor using input features for each of the dimensions. BaTFLED uses a probabilistic Bayesian framework to learn projection matrices mapping input features for each mode into latent representations that multiply to form the response tensor. By utilizing a Tucker decomposition, the model can capture weights for interactions between latent factors for each mode in a small core tensor. Priors that encourage sparsity in the projection matrices and core tensor allow for feature selection and model regularization. This method is shown to far outperform elastic net and neural net models on ‘cold start’ tasks from data simulated in a three-mode structure. Additionally, we apply the model to predict dose-response curves in a panel of breast cancer cell lines treated with drug compounds that was used as a Dialogue for Reverse Engineering Assessments and Methods (DREAM) challenge. …

Kaufman’s Adaptive Moving Average (KAMA)
Kaufman’s Adaptive Moving Average (KAMA) was created by Perry J. Kaufman and presented in 1998 in his book “Trading Systems and Methods, 3rd Edition”. The main advantage of KAMA over other moving averages is that it takes into consideration not only the direction, but also the market volatility. KAMA adjusts its length according to the prevailing market conditions. …

Business Function Library (BFL)
The Business Function Library (BFL) is one of the SAP AFL (Application Function) Libraries. It contains pre-built parameter-driven functions in the financial area. The functions are implemented by C++. This library helps you develop compound business algorithms that are fully compliant with the SAP HANA calculation engine. It offers you the flexibility and efficiency to develop HANA-based applications with incredible performance. …