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 7 of 7 for “"HBase"”.
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Optimalizace čtení dat z distribuované databáze
… čtení dat z distribuované NoSQL databáze Apache HBase s ohledem na požadovanou granularitu dat. Zadání vzniklo jako produktový požadavek firmy Seznam.cz, a.s. divize Reklamy, nákladového střediska Sklik.cz za účelem vylepšení uživatelské zkušenosti zpřístupněním filtrace agregovaných …
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Template B+ trees: an index scheme for fast data streams with distributed append-only stores
… of distributed data management systems, such as HBase, Cassandra and Riak, are designed to perform queries and tuple insertions only. Other database operations such as deletions and updates are simulated by appending the keys associated with the target tuples to operation logs. Such an …
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Dynamic resource provisioning for data center workloads with data constraints
… solutions are implemented into MemCached, HBase/HDFS, and Spark, and evaluated using various datasets, including Wikipedia, NYC taxi trace, Twitter traces, etc.
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A Framework for Hadoop Based Digital Libraries of Tweets
… involved with the required tools (Spark, Scala, HBase, etc.), simply converting the Twitter data into a workable format can be a cumbersome task in itself. This prompted the effort to build a framework that will help in developing code to analyze the Twitter data, run on arbitrary tweet …
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Large Web Archive Collection Infrastructure and Services
… platform with components like Apache Spark and HBase, we propose to replace the WARC (web archive) data format with a columnar data format Parquet to facilitate more efficient reuse. Such a columnar data format can provide the same features as WARC for long-term preservation. In addition, the …
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Secure and high-performance big-data systems in the cloud
… on top of write-optimized key-value stores (e.g. HBase and Cassandra). To update the index structure efficiently in the face of an intensive write stream, HINDEX synchronously executes append-only operations and defers the so-called index-repair operations which are expensive. The core …
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Automated Cloud Datastore and Infrastructure Management Under SLA
… datastores, like Cassandra, MongoDB, Hbase, etc., to process huge volumes of data on a cluster of commodity machines. Our research explores novel techniques to adapt the client-centric performance (i.e., performance observed from client application) of such applications according to a …