In the literature, there are several empirical models to estimate the higher heating values of vegetable oils and biodiesel fuels. In this study, five of these models found in the literature were used to estimate the higher heating value of waste frying oils. When some models are used to estimate HHVs of waste frying oils, the relative errors were found up to 5% compared to the values obtained ...

Empirical studies of information retrieval methods show that good retrieval performance is closely related to the use of various retrieval heuristics, such as TF-IDF weighting. Any effective retrieval formula, no matter how it is originally motivated, also often boils down to an explicit or implicit implementation of these heuristics. One basic research question is thus what are exactly these “...

Empirical studies of information retrieval methods show that good retrieval performance is closely related to the use of various retrieval heuristics, such as TF-IDF weighting. Any effective retrieval formula, no matter how it is originally motivated, also often boils down to an explicit or implicit implementation of these heuristics. One basic research question is thus what are exactly these “...

MOTIVATION High-accuracy mass spectrometry is a popular technology for high-throughput measurements of cellular metabolites (metabolomics). One of the major challenges is the correct identification of the observed mass peaks, including the assignment of their empirical formula, based on the measured mass. RESULTS We propose a novel probabilistic method for the assignment of empirical formulas...