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In top-k planning, the objective is to determine a set of k cheapest plans that provide several good alternatives to choose from. Such a solution set often contains plans that visit at least one state more than once. Depending on the application, plans with such loops are of little importance because they are dominated by a loopless representative and ...
Tschammer, Julian von +2 more
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Top-$k$ Preferences in High Dimensions [PDF]
Given a set of objects O, each with d numeric attributes, a top-k preference scores these objects using a linear combination of their attribute values, where the weight on each attribute reflects the interest in this attribute. Given a query preference q, a top-k query finds the k objects in O with highest scores with respect to q. Given a query object
Albert Yu 0001 +2 more
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The subject of this thesis is the intelligent caching of top-k queries in an environment with high latency and low throughput. In such an environment, caching can be used to reduce network traffic and improve response time. Slow database connections of mobile devices and to databases, which have been offshored, are practical use cases. A semantic cache
Ehlers, Christoph (Dipl.-Inf.)
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Temporally relevant parallel top-k spatial keyword search
New spatio-textual indexing methods are needed to support efficient search and update of the massive amounts of spatially referenced text being generated.
Suprio Ray, Bradford Nickerson
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Adversarial Top- $K$ Ranking [PDF]
We study the top-$K$ ranking problem where the goal is to recover the set of top-$K$ ranked items out of a large collection of items based on partially revealed preferences. We consider an adversarial crowdsourced setting where there are two population sets, and pairwise comparison samples drawn from one of the populations follow the standard Bradley ...
Changho Suh +2 more
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Diversifying top-k results [PDF]
Top- k query processing finds a list of k results that have largest scores w.r.t the user given query, with the assumption that all the k results are independent to each other. In practice, some of the top- k results returned can be very similar
Lu Qin 0001, Jeffrey Xu Yu, Lijun Chang
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QDetect: Time Series Querying Based Road Anomaly Detection
Road anomaly detection has attracting increasing attention in recent years due to its significant role in the public transportation of modern cities. A few methods has been proposed to detect road anomaly with inertial sensors (e.g., accelerometer and ...
Zengwei Zheng +4 more
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Towards efficient top-k fuzzy auto-completion queries
Finding relevant objects in a large repository is a fundamental research problem occurring in many applications, such as: data cleaning, data integration, web search, and information retrieval.
Magdy AbdelNaby +3 more
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Improved Top-k Query Algorithm in Distributed Networks [PDF]
Existing Top-k query algorithms are mainly applied in the centralized relational database.However,the algorithms will cause huge communication costs and low efficiency in the distributed networks.In order to solve these problems,an improved Top-k Query ...
YANG Hao,LIN Xijun,QU Haipeng
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