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Exploiting both Vertical and Horizontal Dimensions of Feature Hierarchy for Effective Recommendation

Zhu Sun, Jie Yang, Jie Zhang, Alessandro Bozzon
2017 PROCEEDINGS OF THE THIRTIETH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE AND THE TWENTY-EIGHTH INNOVATIVE APPLICATIONS OF ARTIFICIAL INTELLIGENCE CONFERENCE  
To fully exploit FH, we propose a unified recommendation framework that seamlessly incorporates both vertical and horizontal dimensions for effective recommendation.  ...  Feature hierarchy (FH) has proven to be effective to improve recommendation accuracy.  ...  This work is partially funded by the Social Urban Data Lab (SUDL) of the Amsterdam Institute for Advanced Metropolitan Solutions (AMS).  ... 
doi:10.1609/aaai.v31i1.10491 fatcat:fg6vk6gcvbdybb73o7c5kopypy

Ontology based data warehouse modelling - a methodology for managing petroleum field ecosystems

Shastri L. Nimmagadda, Heinz Dreher
2008 2008 2nd IEEE International Conference on Digital Ecosystems and Technologies  
for constructing and using the ontology based warehouse.  ...  Derivation of business intelligence, simulations and vizualisation can also be driven by online analytical processing based on warehoused data and metadata.  ...  Data are gathered and organized intelligently from different levels of hierarchies in both horizontal and vertical dimensional structuring process.  ... 
doi:10.1109/dest.2008.4635210 fatcat:eqlhsg67gbgapegxgghqavgdkq

Enhancing XML data warehouse query performance by fragmentation

Hadj Mahboubi, Jérôme Darmont
2009 Proceedings of the 2009 ACM symposium on Applied Computing - SAC '09  
We particularly focus on the initial horizontal fragmentation of dimensions' XML documents and exploit two alternative algorithms.  ...  In relational data warehouses, several studies recommend the use of derived horizontal fragmentation. Hence, we propose to adapt it to the XML context.  ...  Finally, Wu and Buchmaan recommend to combine horizontal and vertical fragmentation for query optimization [24] .  ... 
doi:10.1145/1529282.1529630 dblp:conf/sac/MahboubiD09 fatcat:2khly6tcqrawnpfiinalt2nvbm

Enhancing XML Data Warehouse Query Performance by Fragmentation [article]

Hadj Mahboubi
2009 arXiv   pre-print
We particularly focus on the initial horizontal fragmentation of dimensions' XML documents and exploit two alternative algorithms.  ...  In relational data warehouses, several studies recommend the use of derived horizontal fragmentation. Hence, we propose to adapt it to the XML context.  ...  Finally, Wu and Buchmaan recommend to combine horizontal and vertical fragmentation for query optimization [24] .  ... 
arXiv:0908.3957v1 fatcat:w4spkdssxjfe7obliv42ewezvy

Wavelet Transform for Large Scale Image Processing on Modern Microprocessors [chapter]

Daniel Chaver, Christian Tenllado, Luis Piñuel, Manuel Prieto, Francisco Tirado
2003 Lecture Notes in Computer Science  
Our research is based on previous studies about the efficient exploitation of the memory hierarchy, due to its tremendous impact on performance.  ...  We have extended this work with a more detailed analysis based on hardware performance counters and a study of vectorization, in particular, we have used the Intel Pentium SSE instruction set.  ...  In order to apply the vectorization to both filterings (horizontal and vertical) a block transposition is required.  ... 
doi:10.1007/3-540-36569-9_37 fatcat:h7u7rw5e3revfpykvaio666lja

Fragmenting very large XML data warehouses via K-means clustering algorithm

Alfredo Cuzzocrea, Jerome Darmont, Hadj Mahboubi
2009 International Journal of Business Intelligence and Data Mining  
Inspired by this research challenge, in this paper we propose the use of K-means clustering algorithm for effectively and efficiently supporting the fragmentation of very large XML data warehouses, and  ...  However, XML-native database systems currently suffer from limited performance, both in terms of volumes of manageable data and query response time.  ...  Wu and Buchmaan [78] recommend to combine horizontal and vertical fragmentation for query optimization purposes.  ... 
doi:10.1504/ijbidm.2009.029076 fatcat:wve3gtsfmnccvl2mnrp3q7ft3e

MAKYAVELİZMİN KÜLTÜR VE GİRİŞİMCİLİK EĞİLİMİ ARASINDAKİ İLİŞKİYE OLAN ETKİSİ

Deniz ÇELİKDEMİR, Alev KATRİNLİ, Seray Begüm SAMUR-TERAMAN
2020 Dokuz Eylül Üniversitesi İşletme Fakültesi Dergisi  
The subjects included both undergraduate and graduate students studying at the Faculty of Economics and Administrative Sciences and at the Social Sciences Institute of a private university located in Istanbul  ...  The focus of this study is to explore the role of individualistic and collectivistic culture and Machiavellian side of the personality on entrepreneurial tendency.  ...  Individuals own features of both individualism and collectivism but tendency of one of the dimensions will be likely to be higher in the individual.  ... 
doi:10.24889/ifede.839752 fatcat:p26uuzhrfzhqxhu7ngvoeh4rz4

Exploring Correlated Subspaces for Efficient Query Processing in Sparse Databases

Bin Cui, Jiakui Zhao, Dongqing Yang
2010 IEEE Transactions on Knowledge and Data Engineering  
performance for both storage and query processing, as such approaches are too rigid and generally do not consider the dimension correlations.  ...  Experiments over synthetic and real-life data sets show that our approach is effective in finding correlated subspaces and yields superior performance for the storage and query of sparse data.  ...  Therefore, we propose a new representation called HoVer, which can effectively exploit the characteristics of sparse data sets, such as sparsity and dimension correlation.  ... 
doi:10.1109/tkde.2009.66 fatcat:sjbievgmrzg4hkti5icrdjttsm

Do horizontal relationships matter to production and operations managers?

Francesca Riccobono, Manfredi Bruccoleri, Kathryn R. Harrigan, Giovanni Perrone
2014 International Journal of Production Research  
This paper shifts the focus of production, operations and supply chain management business relationships from the vertical to the horizontal side and calls for more research on this issue.  ...  This study brings interesting results and findings in terms of how and why production management considerations should play a crucial role in the type of strategic decisions that are usually reserved for  ...  For example, the acquisition of a product-related firm can allow the focal firm to reduce both product development time and manufacturing costs by exploiting both economy of scope and scale.  ... 
doi:10.1080/00207543.2014.884291 fatcat:ue5mzyyndfcd3hbshtx6i5l2pm

An Investigation of Verticality in Tertiary Students' Academic Writing Texts: A Systemic Functional Perspective

Vasemaca T. Ledua Alifereti
2013 International Journal of Applied Linguistics and English Literature  
This study, identifies, discusses and recommends specific linguistic features that can be explored by Non-Native English (NNE) students studying at the University of the South Pacific (USP) in Fiji to  ...  Firstly, the status of academic writing in relation to NNE speakers both globally and in Fiji is discussed.  ...  This is illustrated in Figure 8 for NE data and Figure 9 for NNE data where it is evident that exploitation of attributes or congruent circumstances is minimal for both cohorts.  ... 
doi:10.7575/aiac.ijalel.v.2n.3p.163 fatcat:lqaztj5yefbbhn4hwcxwenbsra

Multidimensional Dataflow Graph Modeling and Mapping for Efficient GPU Implementation

Lai-Huei Wang, Chung-Ching Shen, Gunasekaran Seetharaman, Kannappan Palaniappan, Shuvra S. Bhattacharyya
2012 2012 IEEE Workshop on Signal Processing Systems  
Multidimensional synchronous dataflow (MDSDF) provides an effective model of computation for a variety of multidimensional DSP systems that have static dataflow structures.  ...  In this paper, we develop new methods for optimized implementation of MDSDF graphs on embedded platforms that employ multiple levels of parallelism to enhance performance at different levels of granularity  ...  The cross-weave scan processes the image in the first dimension (horizontal scan) followed by a scan in the second dimension (vertical scan).  ... 
doi:10.1109/sips.2012.10 dblp:conf/sips/WangSSPB12 fatcat:nkctnqxwmvd3rap4zq3ckf44ze

Interacting Attention-gated Recurrent Networks for Recommendation [article]

Wenjie Pei, Jie Yang, Zhu Sun, Jie Zhang, Alessandro Bozzon, David M.J. Tax
2017 arXiv   pre-print
Capturing the temporal dynamics of user preferences over items is important for recommendation.  ...  Our model can therefore provide meaningful interpretations for recommendation results, which could be further enhanced by auxiliary features.  ...  ACKNOWLEDGEMENT This work is partially funded by the Social Urban Data Lab (SUDL) of the Amsterdam Institute for Advanced Metropolitan Solutions (AMS).  ... 
arXiv:1709.01532v2 fatcat:wawwv6jyrzecjhrd7uljb7slbq

Perceived mutual impact of strategy and organizational structure: Findings from the high-technology enterprises

Agnieszka Zakrzewska-Bielawska
2016 Journal of Management & Organization  
: the phase of innovation exploration; and the phase of innovation exploitation.  ...  During the exploitation of innovations, the impact of strategy on structure is stronger.  ...  ACKNOWLEDGEMENT This research was supported by Ministry for Science and Higher Education Grant NN115 128434 awarded to Agnieszka Zakrzewska-Bielawska.  ... 
doi:10.1017/jmo.2015.55 fatcat:6azvjgngrvb5hdtycw7ckdj7bu

Traffic Behavior Recognition Using the Pachinko Allocation Model

Thien Huynh-The, Oresti Banos, Ba-Vui Le, Dinh-Mao Bui, Yongik Yoon, Sungyoung Lee
2015 Sensors  
Then, the sparse features comprising the locations and directions of the moving objects are modeled by PAM into traffic topics, namely activities and behaviors.  ...  The proposed system combines the pachinko allocation model (PAM) and support vector machine (SVM) for a hierarchical representation and identification of traffic behavior.  ...  of the proposed method for the detection of the vertical and horizontal traffic.  ... 
doi:10.3390/s150716040 pmid:26151213 pmcid:PMC4541867 fatcat:lhmc6hp76nbpfc6hhtrqb5t6r4

Introducing Semantics in Web Personalization: The Role of Ontologies [chapter]

Magdalini Eirinaki, Dimitrios Mavroeidis, George Tsatsaronis, Michalis Vazirgiannis
2006 Lecture Notes in Computer Science  
The exploitation of the web pages' semantics can considerably improve the results of web usage mining and personalization, since it provides a more abstract yet uniform and both machine and human understandable  ...  way of processing and analyzing the usage data.  ...  Several WSD approaches take advantage of the fact that a thesaurus offers important vertical (is-a, has-part) and horizontal (synonym, antonym, coordinate terms) semantic relations.  ... 
doi:10.1007/11908678_10 fatcat:jtpv6xshnzcgroad32575yfdlu
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