29th International Conference, DEXA 2018, Regensburg, Germany, September 3 ... IATA code (a unique worldwide code assigned to each airport). IATA codes are 3 or 4 letter ... <CITY>, for a regex corresponding to date, we store its type <DATE> and ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems I
... Advantages: Simplicity. Follows the algorithm exactly. Disadvantage: Does not scale. The Simple Histogram-based Approach (SHBA) refines the Brute-Force approach by exploiting histogram-based estimation techniques [23] to avoid expensive ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems LIII
... SAX (Symbolic Aggre- gate ApproXimation) [13] is one of the most popular time series representations, allowing dimensionality reduction on the classic data mining tasks. SAX con- structs symbolic representations by splitting the time ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems XLVIII: Special Issue In Memory of Univ. Prof. Dr. Roland Wagner
... ETL procedure for the DW is also implemented in Python, but FlexDanmark has created a framework that using templates ... map matching in a widely used commercial ETL tool but found it hard to ... pygrametl is desirable. It was also considered ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems XXXIX: Special Issue on Database- and Expert-Systems Applications
... list of individual items. Examples of such applications may include music [6] (e.g., play list of songs on Last.fm), education [7] (e.g., a set of course combination) and trip planning activities [8,9] (e.g., packages including Points ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems VII
... Entity serves as the root of the inheritance hierarchy. Instances of subclasses of the class Entity therefore may represent any kind of software ... contains at least 2 other data types, either both of the kind ... procedures and methods, as ...
Database and Expert Systems Applications: 28th International Conference, DEXA 2017, Lyon, France, August 28-31, 2017, Proceedings, Part II
... sustainable city planning. A clear guideline for all decision makers and ... CUNY, a 'green university', provides an excellent case in point. The ... sustainable buildings, thereby turning sustainability features into something people ...
Database and Expert Systems Applications: 22nd International Conference, DEXA 2011, Bilbao, Spain, August 29 - September 2, 2011, Proceedings
... query processing and optimization. Our main contributions are a simple but expressive aggregation language and ... yahoo! pipes feed aggregator, http://pipes.yahoo.com 2. Yahoo! query language, http://developer.yahoo.com/yql 3. Arasu, A ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems XIII
... MW2 ] According to the ProgrammableWeb repository, the MoviePilot Web API has been used in the following mashup only: m21∈MW2 = [name: VIDVIDOO; uri: http://vidvidoo.com/; description: VIDVIDOO New Releases and Classics Movie Reviews ...
Database and Expert Systems Applications: 22nd International Conference, DEXA 2011, Bilbao, Spain, August 29 - September 2, 2011, Proceedings, Part II
... compression rates for frequently queried columns (and conversely, compress infrequently queried columns more ... (Teradata) for their valuable insights and comments on this paper. This work was generously supported in part by an Amazon ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems III: Special Issue on Data and Knowledge Management in Grid and PSP Systems
... SOAP message via TCP/IP. Note that while this handshake can be disabled, it is a default HTTP configuration and is relatively expensive even for small SOAP messages. SOAP Application Application HTTP Presentation HTTP HTTP Presentation ...
Database and Expert Systems Applications: 21st International Conference, DEXA 2010, Bilbao, Spain, August 30 - September 3, 2010, Proceedings, Part II
... r e f i x S i z e All-Pairs MMJoin 0.0 0.5 1.0 1.5 2.0 2.5 0.70 0.75 0.80 0.85 0.90 0.95 A v era g e P r e f i x S i z e Threshold All-Pairs MMJoin (a) LAST.FM, Prefix size 1.0 1.5 2.0 2.5 3.0 3.5 v era g e P r e f i x S i z e All-Pairs ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems VIII: Special Issue on Advances in Data Warehousing and Knowledge Discovery
... Ck,t is a monotonically non-decreasing function of t, i.e., t1 ≤ t 2 ⇒ Ck,t1 ≤ Ck,t 2 (3) Proof. Once again, we prove by contradiction. Suppose t1 ≤ t 2 but Ck,t1 > Ck,t2. Let Sk,t be the set of events that get reported in some (k ...
Data Management in Grid and Peer-to-Peer Systems: 4th International Conference, Globe 2011, Toulouse, France, September 1-2, 2011, Proceedings
... what a user can see from the computer. A peer can create, delete, modify, and ... P2P network maintains a Novel record set that has two attributes title and ... example, the record (t1, a1) in peer A may have been copied from peer B and ...
Database and Expert Systems Applications: 13th International Conference, DEXA 2002, Aix-en-Provence, France, September 2-6, 2002. Proceedings
... features. Given a document vector, its dimensional components indicate the ... (2). ∑ . [log()( )]/ n 1 i = tfi 2 nN i 2 Here, N is the document total ... Ck ) 2 − ||Ck2 Cdki∈ = k 1 = 1 k ji kj (4) Above , m is the number of ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems LII
... SVT algorithm using a synthetic dataset t20i6d100k having 100,000 transactions with an average of 20 items per itemset and an average cardinality of frequent itemsets being 6 (i.e., 6-itemsets). Figure4(a) shows that our SVT algorithms ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems XXI: Selected Papers from DaWaK 2012
... Wikipedia in addition to the textual content of articles, imply rich hidden associations between different Wikipedia concepts. For example, the Wikipedia article talking about “Osama bin Laden” contains a great number of potential ...
Database and Expert Systems Applications: DEXA 2018 International Workshops, BDMICS, BIOKDD, and TIR, Regensburg, Germany, September 3–6, 2018, Proceedings
... gradient descent, is applied for minimization. Gradient Descent Algorithm. Gradient descent updates the parameters ... Octave [4]) are described in the following paragraphs. Define sl and λ. To begin, the nodes sl in all the layers (in ...
Transactions on Large-Scale Data- and Knowledge-Centered Systems LI: Special Issue on Data Management - Principles, Technologies and Applications
... DMV detection approach, which does not require extracting named entities from all strings, has been to cluster the ... form texts. However, we integrate into ConnectionLens (Sect. 6.2) the TF-IDF version, because it is faster yet provides ...
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