This paper argues that metrics can be generated from search transactional web logs that can help evaluate search engine effectiveness. Search logs from the BBC website were analysed and metrics extracted. Two search metrics – the time lapse between searches and the number of searches in a session – were developed to see whether they could measure search success or satisfaction. In all, 4 millio...

In this report, IOzSeF, a search factory for Mozart/Oz, is presented. Search plays an important role in constraint programming. In Mozart/Oz, search is done by library procedures or the Explorer, a graphical search tool. All these have some shortcomings, mainly that features like recomputation, best solution search and visualisation cannot be combined with freely. IOzSeF aims at combining the a...

In the Trading Agent Competition Ad Auctions Game, agents compete to sell products by bidding to have their ads shown in a search engine’s sponsored search results. We report on the winning agent from the first (2009) competition, TacTex. TacTex operates by estimating the full game state from limited information, using these estimates to make predictions, and then optimizing its actions (daily ...

Because of their multi-sided and dynamic nature, the application of competition law to online platforms may prove challenging. The paper maintains that existing competition concepts are flexible enough to be adequately applied to search engines and social networks. It is argued that, in order to take the fast-moving nature of these industries into account, relevant markets should not be defined...

We present a controlled experiment that measures the effect, on retrieval effectiveness and efficiency, of varying the maximum keyword number used to represent documents in Web search engines. We defined a general methodology to quantitatively evaluate the impact of a given design option on the retrieval effectiveness-efficiency trad-offs, and apply to this particular case of centroid size. The...

In this poster we propose a granular approach for presenting web search results. Sentences, taken from the top documents, are used as fine-grained representations of document content and, when combined in a ranked list, to provide an overview of the set of retrieved documents. Current search engine interfaces assume users examine such results document-by-document. In contrast our approach group...

This paper compares the search engine marketing strategies adopted in China and the Western countries through two illustrative cases, namely, Google and Baidu. Marketers in the West use search engine optimization (SEO) to rank their sites higher for queries in Google. Baidu, however, offers paid search placement, or the selling of engine results for particular keywords to the higher bidders. Wh...

Abstract— This review paper presents a study about entity search engine .It describes details about entity search engine architecture and it’s working or the different methods adopted for entity extraction on it. All these methods are described based on the working examples such as entity cube and Microsoft academic search. Search engine for searching the summaries of an entity that make the us...

Sponsored-search mechanisms, where advertisers bid for better placement in the listing of search results on Yahoo! and Google, have emerged as the dominant revenue model for online search engines. Interestingly, Yahoo! and Google employ different mechanisms to determine the placement of bidders’ advertisements. This provides an unprecedented opportunity to extend the research relating quality a...