abstract having no exact knowledge of most appropriate harvesting time in kiwifruit grown in different regions of guilan province, as well as the low storage longevity of the fruits are the most important factors causing considerable reduction in both marketability and export affairs. in this study, the influence of fruit quality in term of harvesting time on the postharvest quality and food va...

We introduce a general family of kernels based on weighted transducers or rational relations, rational kernels, that can be used for analysis of variable-length sequences or more generally weighted automata, in applications such as computational biology or speech recognition. We show that rational kernels can be computed efficiently using a general algorithm of composition of weighted transduce...

      The essential oils of fresh fruits and terminal branches with adherent leaves of Cupressus sempervirens L. and C. horizentalis Mill., growing in Iran, were analyzed by gas chromatography-mass spectroscopy. The oils were also screened for bacteriostatic and fungistatic activities. Thirteen and ten components were identified in the essential oils of C. semperv...

Learning from complex data is becoming increasingly important, and graph kernels have recently evolved into a rapidly developing branch of learning on structured data. However, previously proposed kernels rely on having discrete node label information. In this paper, we explore the power of continuous node-level features for propagation-based graph kernels. Speci cally, propagation kernels expl...

Convolution kernels for trees provide simple means for learning with tree-structured data. The computation time of tree kernels is quadratic in the size of the trees, since all pairs of nodes need to be compared. Thus, large parse trees, obtained from HTML documents or structured network data, render convolution kernels inapplicable. In this article, we propose an effective approximation techni...

w L r w h c w h i a i d m t n ( e S t s u ( t r p r Individual kernels of wheat containing immature ice weevils, Sitophilus oryzae (L.) (Coleoptera: Curcuionidae), parasitized by Anisopteromalus calandrae Howard) (Hymenoptera: Pteromalidae) could be sepaated from uninfested kernels and kernels that conained unparasitized weevils by using near-infrared NIR) spectroscopy. Wheat kernels from cultu...

We introduce several new families of string kernels designed in particular for use with support vector machines (SVMs) for classification of protein sequence data. These kernels – restricted gappy kernels, substitution kernels, and wildcard kernels – are based on feature spaces indexed by k-length subsequences from the string alphabet Σ (or the alphabet augmented by a wildcard character), and h...

We describe several families of k-mer based string kernels related to the recently presented mismatch kernel and designed for use with support vector machines (SVMs) for classification of protein sequence data. These new kernels – restricted gappy kernels, substitution kernels, and wildcard kernels – are based on feature spaces indexed by k-length subsequences (“k-mers”) from the string alphabe...