Learning Express's 1001 Math Problems PDF

By Learning Express

ISBN-10: 1576852008

ISBN-13: 9781576852002

1001 Math difficulties presents workouts masking addition and subtraction via fractions, decimals, and chances, and directly to uncomplicated geometry and effortless algebra.

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Extra resources for 1001 Math Problems

Example text

In 2002, Amazon unveiled “Project Ruby,” an experimental faceted search site for its multistore apparel department [82]. Project Ruby allowed shoppers to browse by store, product category, and brand. Over subsequent years, Amazon extended faceted search to all of its product categories. 3 illustrates Amazon’s faceted search interface for apparel at the time of this writing. com. 4 OPEN SOURCE Although commercial enterprise search vendors and major online retailers were the first to push faceted search into the mainstream, the open-source community followed shortly thereafter.

Response to incremental query modifications helps overcome the aforementioned difficulty of formulating queries in a parametric search interface. Visual interfaces are certainly more friendly to nonexpert users than command-line interfaces that require formal query expressions. Moreover, rapid feedback of dynamic queries overcomes much of the frustration that can arise from parametric search over a sparsely populated space of possible combinations of values. Nonetheless, the feedback they offer users is reactive, not proactive.

In a ranked retrieval model, we can no longer reason about which results match or do not match a query—we lose the bright line of the set retrieval model. 18 faceted search Although this loss may not seem important in an interface where users only look at topranked search results, we will see that this lack of a clear dividing line is highly problematic for faceted search. Faceted search is, at heart, a set-oriented retrieval method. 5 DIRECTORY NAVIGATION In less than a decade, we have become accustomed to free-text search as the most familiar interface for information seeking.

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1001 Math Problems by Learning Express


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