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In this paper, we propose a novel approach for understanding and analyzing the online handwritten chemical formulas. With the structural characteristics, semantic rules, and more importantly grammatical rules, the analyzing process is divided into 3 levels: formula level, molecule level, and text level. A formal description of the chemical formula based-on the grammatical rules is summed up and applied...
BM25 is a well known ranking method to measure the relevance of the matching documents to a query.BM25 ranking functions can be used in recommendation when the query is transferred to represent userspsila interest. However, in this scenario,terms in the query need to be handled differently because they may come from sources that users have different levels of interests in. For example, some terms...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.