Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 223 for “"Search engines"”.
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Introducing Privacy in Current Web Search Engines
… important in frequently used services like search engines (e.g., Google, Bing, Yahoo!). These services allow users to retrieve relevant content on the Internet by exploiting their personal data. In this context, developing solutions to enable users to use these services in a …
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Systematic optimization of search engines for difficult queries
… ways. The widespread and multi-purposed use of search engines is one example of how transformed our lives have become in relation to text information. Although the vast majority of people's information needs can be served very successfully by current search engines, there is still a considerable …
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Object search: supporting structured queries in web search engines
… may include her name, university, and research interests. Both types of pages may include additional ambiguous information. General search engines (GSEs) do not support queries over these types of data because they ignore the web document semantics. Conversely, describing requisite …
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Control of Internet search engines in China -- A study on Google and Baidu
… border to control the Internet. The Internet search engines provide global services to all users. When their services reach the Chinese Internet border, the Internet search engines have to apply Chinese Internet rules, regulations and laws. This research attempts to find out the real factors …
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Search Engines and Foreign Influence: How Google and Yandex Mediate Russia’s Propaganda Abroad
… of how algorithmic gatekeepers, particularly search engines, can be strategically appropriated or manipulated to reinforce and export state narratives beyond national borders. The main conclusion of this dissertation is that both Yandex and Google, albeit through different mechanisms and to …
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An Investigation into Code Search Engines: The State of the Art Versus Developer Expectations
An essential software development tool, code search engines are expected to provide superior accuracy, usability, and performance. However, prior research has neither (1) summarized, categorized, and compared representative code search engines, nor (2) analyzed the actual expectations that …
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The development of a model of information seeking behaviour of students in higher education when using internet search engines.
… students with a specific focus on Web search engines' use. It extends Marchionini's eight stage model of information seeking, geared towards electronic environments, to holistically encompass the physical, cognitive, affective and social dimensions of Web users' behaviour. The study …
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The Effect of Perceived Privacy Breaches on Continued Technology Use and Individual Psychology: The Construct, Instrument Development, and an Application Using Internet Search Engines
… has been shared. This instrument assists researchers to understand how a person perceives a possible breach of privacy. The PPB instrument was created after conducting a pilot study of approximately 200 undergraduate students and testing the data for possible dimensions in an Exploratory …
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Searching for the President: Analysis of Search Engine Results from the 2008 Presidential Election
… (Smith, 2009). Although past communication research has focused on the characteristics of messages presented on political candidate Web sites, it has not looked at third-party sources, such as newspaper sites, and scholars have not investigated the relationship between search engines and the …
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Utilizing forum meta-information to improve relevance in forum discovery
… topic in which to join. While many modern search engines crawl through discussion forums and return threads in various forums based on each thread’s relevance to query terms, there are not a lot of search engines that can tell a user the best forum to join to discuss about a topic of …
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Using an ontology to improve the web search experience
The search terms that a user passes to a search engine are often ambiguous, referring to homonyms. The results in these cases are a mixture of links to documents that contain different meanings of the search terms. Current search engines provide suggested query completions in a dropdown list. …
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A goal-oriented user interface for personalized semantic search
… goals when they browse the Web or perform searches. However, the two primary user interfaces positioned between users and the Web, Web browsers and search engines, have very little interest in users' goals. Present-day Web browsers provide only a thin interface between users and the Web, …
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Improving Search Results with Automated Summarization and Sentence Clustering
Have you ever searched for something on the web and been overloaded with irrelevant results? Many search engines tend to cast a very wide net and rely on ranking to show you the relevant results first. But, this doesn't always work. Perhaps the occurrence of irrelevant results could be reduced if …
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Combination of Multiple Web Search Results and Its Effect on the Search Performance
… are more likely to retrieve documents from more search engines; more than 15% of retrieved Web links are inactive for various reasons; on the average combining more evidence sources does improve Web IR performance. The study shows that the best result of improvement is achieved at the 2-way …
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Efficient near duplicate document detection for specialized corpora
… near duplicate documents can be adventagous to search engines, even those that only cover a small enterprise or specialized corpus. In this thesis, we investigate improvements to simhash, a signature-based method which can be used to efficiently detect near duplicate documents. We implement …
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Improving the Performance and Precision of Bioinformatics Algorithms
… become very important in modern biological research. This thesis presents several techniques for improving the performance and precision of bioinformatics algorithms used by biologists. Improvements in both the speed and cost of automated DNA sequencers have allowed scientists to sequence the …
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Concept Search: Semantics Enabled Information Retrieval
… syntactic IR and semantic IR. In syntactic IR, search engines use words or multi-word phrases that occur in document and query representations. The search procedure, used by these search engines, is principally based on the syntactic matching of document and query representations. The precision …
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The Influence of Digital Marketing Strategies on Consumer Buying Behavior: “A Comprehensive Analysis of Marks and Spencer’s Retail in the UK”.
This dissertation researches how digital marketing techniques impact consumer decision-making while purchasing, especially on the UK retail operations of Marks & Spencer. The study examines how different types of digital advertising including social media, email marketing, search engines, and …
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