mà chúng tôi tạo ra trong quá trình lập chỉ mục. Ngoài ra, người ta có thể sử dụng MultiFieldQueryParser để tìm kiếm trên nhiều lĩnh vực. Tiếp theo, chúng tôi tạo ra một đối tượng truy vấn bằng cách sử dụng chuỗi truy vấn và QueryParser. Để tìm kiếm các chỉ số, chúng ta chỉ cần gọi phương thức tìm kiếm trong IndexSearcher: | Content-based analysis 361 Simpo PDF Merge and Split Unregistered Version - http The method createLearningData uses an instance of BlogDataSetCreatorlmpl see chapter 8 to create a List of TextDataltems. illustrateContentRecoEngine simply iterates over all blog entry instances to print out related items for each entry. Listing shows the implementation for the method to find the related items for the blogs. Listing Getting relevant items in ContentBasedBlogRecoEngine private List RelevanceTextDataItem getRelevantDataItems TextDataltem parentDataItem List TextDataItem candidateDataItems TagMagnitudeVector tmv List RelevanceTextDataItem relevantItems new ArrayList RelevanceTextDataItem for TextDataItem candidateDataItem candidateDataItems if candidateDataItem double relevance if relevance 0. new RelevanceTextDataItem candidateDataItem relevance _ Sort results based relevantItems I on relevance return relevantItems Dot product Of term vectors To find related blogs we simply iterate over all blog instances compute the similarity with the blog of interest and then sort all relevant blog items based on the similarity. Listing shows sample output from the code developed in this section. Here you can see the related blog entries for a blog along with the level of relevance between the parent and the children blogs. Listing Related entries for a blog Social Media is Just the Next Logical Step in Technology http whataconcept our learning wiki http blog The Dilemma of Personalized Library Services http Companies using the Power of WE - The Consumers http our learning wiki http blog The Dilemma of Personalized Library Services .
