, và không sử dụng các thẻ ẩn làm phương hại đến các thuật toán xếp hạng. Cuối cùng, cả hai tài liệu cơ bản có nghĩa là điều tương tự, chỉ khác nhau là một trong những giao dịch với các doanh nghiệp và người tiêu dùng cá nhân. Chỉ rõ ràng sự khác biệt? Trong khi doanh số bán hàng và thuế xuất hiện trong vòng thẻ của cả hai | Information Architecture for the World Wide Web The 20 results are scored at either 84 or 82 relevant. Why does each document receive only one of two scores Are the documents in each group so similar to each other And what the heck makes a document 2 more relevant than another Let s compare two retrieved documents one which received an 84 relevancy score Figure the other 82 Figure . Figure . Sales Use Tax Business was scored at 84 relevancy. Figure . .and Sales Use Tax Individuals received an 82 relevancy ranking. Can you tell the difference As you can see these documents are almost exactly the same. Both have very similar titles and neither uses hidden META tags to prejudice the ranking algorithm. Finally both documents mean essentially the same thing differing only in that one deals with businesses and the other with individual consumers. The only apparent difference While sales and tax appear within TITLE and H1 tags of both documents they appear in the body of only the first document not in the second. The search engine probably adds 2 to the score of the first document for this reason. Probably because as the algorithm isn t explained we don t know for sure if this is the correct explanation. page 99 Information Architecture for the World Wide Web Always Provide the User with Feedback When a user executes a search he or she expects results. Usually a query will retrieve at least one document so the user s expectation is fulfilled. But sometimes a search retrieves zero results. Let the user know by creating a different results page specially for these cases. This page should make it painfully clear that nothing was retrieved and give an explanation as to why tips for improving retrieval results and links to both the Help area and to a new search interface so the user can try again see Figure . Figure . Although no results were retrieved the user is presented with other options such as trying another search reviewing the search .
