18. A network server comprising an apparatus for enriching contents of a current website, the apparatus comprising a processor configured to execute one or more computer executable units, the computer executable units comprising: an extracting unit configured to obtain a corpus from the current website and other websites, and extracting object features from the corpus, wherein the corpus comprises specifications of the object and user reviews about the object; a feature vector constructing unit configured to construct multi-dimensional vectors for the extracted features according to the corpus; a vector comparison unit configured to, for a specific feature, make similarity comparison of its multi-dimensional vector and multi-dimensional vectors of other extracted features, wherein the similarity comparison comprises: calculation of mutual information between the specific feature in the corpus and each dimension of its multi-dimensional vector as a weight of each dimension; and calculation of similarities between the multi-dimensional vector of the specific feature in the corpus and the multi-dimensional vectors of the extracted features according to the weights of each dimension, and wherein, the similarities between the multi-dimensional vectors of are calculated based on cosine values between the dimensions; and a reinforcing unit configured to determine features with similarities being higher than a predetermined threshold as a same feature, and reinforcing the current website with at least one feature which is different from those on the website and corresponding attributes of the at least one feature.
18. A network server comprising an apparatus for enriching contents of a current website, the apparatus comprising a processor configured to execute one or more computer executable units, the computer executable units comprising: an extracting unit configured to obtain a corpus from the current website and other websites, and extracting object features from the corpus, wherein the corpus comprises specifications of the object and user reviews about the object; a feature vector constructing unit configured to construct multi-dimensional vectors for the extracted features according to the corpus; a vector comparison unit configured to, for a specific feature, make similarity comparison of its multi-dimensional vector and multi-dimensional vectors of other extracted features, wherein the similarity comparison comprises: calculation of mutual information between the specific feature in the corpus and each dimension of its multi-dimensional vector as a weight of each dimension; and calculation of similarities between the multi-dimensional vector of the specific feature in the corpus and the multi-dimensional vectors of the extracted features according to the weights of each dimension, and wherein, the similarities between the multi-dimensional vectors of are calculated based on cosine values between the dimensions; and a reinforcing unit configured to determine features with similarities being higher than a predetermined threshold as a same feature, and reinforcing the current website with at least one feature which is different from those on the website and corresponding attributes of the at least one feature. 20. The network server according to claim 18 , wherein the vector comparison unit is further configured to align dimensions of multi-dimensional vectors of all extracted features, wherein for the specific feature, dimensions of the multi-dimensional vectors of the other extracted features are treated as dimensions of the specific feature, so that each feature has the same number of dimensions.