1. A method, performed by a processor of a computer system, utilizing an expanded Conditional Random Field (eCRF) model, the method comprising: performing actions, by an eCRF manager, relating to eCRF applications, the actions comprising: accessing an eCRF model that includes modeling of labels with long-distance dependencies; constructing an expanded searching lattice comprising nodes and edges; extracting features for the nodes and edges in the searching lattice, wherein the features include feature values, and wherein the feature values are based on a distance from the labels with long-distance dependencies; computing, by the processor, probabilities of the nodes and the edges in the searching lattice; determining a label sequence using the searching lattice; and outputting the label sequence.