Suffix Tree Clustering (STC) uses the suffix tree structure to find a set of snippets that share a common phrase and uses this information to propose clusters. As a result, STC is a fast incremental algorithm for automatic clustering and labeling but it cannot cluster semantically similar snippets. However, the meaning of the words is indeed an important property that relates them to other word...

We compare various classes of Petri net languages. We present a new constructive proof of the equivalence, from the point of view of descriptive power, of “general” Petri nets and “restricted” Petri nets (no multiple arcs nor self-loops are allowed in the latter class). We also comment on the descriptive power of Petri nets versus that of finitely recursive processes.

 Net photosynthesis rate (Pn), stomatal conductance (gs) and transpiration rate (E) of anise hyssop were measured during the four cloudless days, in reference to diurnal fluctuations of leaf temperature (Tleaf), leaf vapor pressure deficit (VPD leaf) and photosynthetic photon flux density (PPFD) in well watered (WW), stressed (S) and recovered (R) plants. An analysis of measured data showed tha...

in this paper, the electrical consumption of a research center building is derived of the bills, then with defining of fuzzy bus thermal coefficient objective function for heating, the amount of available heat selling to research center building consumer that is produced by biomass solar hybrid source is calculated. with the capacity determination of biomass solar hybrid source to provide therm...