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Improving Reachability and Navigability in Recommender Systems [article]

Daniel Lamprecht, Markus Strohmaier, Denis Helic
2015 arXiv   pre-print
exploratory search?  ...  In this paper, we investigate recommender systems from a network perspective and investigate recommendation networks, where nodes are items (e.g., movies) and edges are constructed from top-N recommendations  ...  For small N s, node memberships vary. With increasing N , most of the nodes are in the largest strongly connected component (SCC). Figure 4 : 4 Bow Tie Model.  ... 
arXiv:1507.08120v1 fatcat:wjvolmco5vcylfg4fems6445wm

Systematic yet flexible discovery

Adam Perer, Ben Shneiderman
2008 Proceedings of the 13th international conference on Intelligent user interfaces - IUI '08  
During exploratory data analysis, visualizations are often useful for making sense of complex data sets.  ...  The SYF system is a tool-independent component and can be incorporated into other data analysis tools.  ...  ACKNOWLEDGMENTS We thank Georg Apitz, Bita Azhdam, Nicolas Chen, Krzysztof Gajos, François Guimbretière, Tessa Lau and Catherine Plaisant and the anonymous reviewers for helpful comments.  ... 
doi:10.1145/1378773.1378788 dblp:conf/iui/PererS08 fatcat:x3avgfiiqrhzvk552iooretiai

Knowledge Graph Exploration Systems: are we lost?

Matteo Lissandrini, Davide Mottin, Katja Hose, Torben Bach Pedersen
2022 Conference on Innovative Data Systems Research  
Then, we identify the (currently unmet) requirements for effective KG exploration systems, and finally, we highlight promising research directions for the realization of a system able to fully support  ...  Therefore, with the aim of fostering research on these open issues, in this position paper, we first present an overview of state-of-the-art approaches for KG exploration.  ...  m a ri e s & D a ta P ro fi le s Ou tlie rs & No ta ble As pe ct s Nodes / Struct ures of intere st Rele van t/ Sim ilar Enti ties / Stru ctur es D im e n si o n / A sp e ct s o f in te re st Query Processing  ... 
dblp:conf/cidr/LissandriniMHP22 fatcat:442lhikgavdojpnenujmad3jby

A Visual Data Mining Approach to Understanding Students Using Computer-Based Learning Technology

Antonina Durfee, Scott L. Schneberger, Donald L. Amoroso
2006 Americas Conference on Information Systems  
This paper introduces a unique approach for analyzing student characteristics influencing their adoption and use of computer-based educational technology so that instructors can better meet student learning  ...  This technology is often criticized, however, for hampering personalized interaction with students.  ...  The SOM algorithm traverses each node using Euclidean distance formulas to find similarity between the input vector and the map' s node weight vectors.  ... 
dblp:conf/amcis/DurfeeSA06 fatcat:yne23lbmkbairnou22inwrng6i

Learning Classical Planning Strategies with Policy Gradient [article]

Pawel Gomoluch, Dalal Alrajeh, Alessandra Russo
2019 arXiv   pre-print
Then, we train the system on randomly generated problems from five IPC domains using three different performance metrics.  ...  In this paper, we introduce a novel search framework capable of alternating between several forward search approaches while solving a particular planning problem.  ...  for the last s node expansions.  ... 
arXiv:1810.09923v2 fatcat:4pcd7r373rfdfj7j7w544ezwza

Simulation for improvement of dynamic path planning in autonomous search and rescue robots

M. D. Hasler, P. Gaynor, D. Carnegie
2009 2009 IEEE International Conference on Control and Automation  
To hasten the process of saving lives after disasters in urban areas, autonomous robots are being looked to for providing mapping, hazard identification and casualty location.  ...  This project aims to improve autonomous robot navigation through allowing comparison of algorithms with various weightings, in conjunction with the ability to vary physical parameters of the robot and  ...  a t e <c l a s s NODE> 807 v o i d A d j u s t S u c c e s s o r s (NODE * temp , f l o a t a d j u s t m e nf o r w a r d , l e f t , b a c k and r i g h t . 938 A t t e m p t s t o move u n t i l a  ... 
doi:10.1109/icca.2009.5410391 fatcat:qsnxwdhktrfhhe6nuhn7vqvhiu

Interoperability, XML Schema [chapter]

2017 Encyclopedia of GIS  
Global Navigation Satellite Systems (GNSS) uniformly provide position fixes all around the world. These systems work everywhere in the same way.  ...  If at least one of the s 1 cooperating siblings is not full, distribute " evenly among the s nodes according to Hilbert values. H4.  ...  Information Visualization Exploratory Visualization Informing Climate Adaptation with Earth System Models and Big Data I Buyukokkten O, Cho J, Garcia-Molina H, Gravano L, Shivakumar N (1999) Exploiting  ... 
doi:10.1007/978-3-319-17885-1_100625 fatcat:bgxdhdxa4bewzcggrogz56rdpi

Quantifying the Connectivity of a Semantic Warehouse and Understanding its Evolution over Time

Michalis Mountantonakis, Nikos Minadakis, Yannis Marketakis, Pavlos Fafalios, Yannis Tzitzikas
2016 International Journal on Semantic Web and Information Systems (IJSWIS)  
Such descriptions can be exploited for dataset/endpoint selection in the context of federated search.  ...  In addition, we show how the metrics can be used for monitoring a semantic warehouse after each reconstruction reducing thereby the cost of quality checking, as well as for understanding its evolution  ...  The diagram contains 2 |S| nodes. Metrics for Evaluating the Entire Warehouse Here we introduce metrics that measure the quality of the entire warehouse.  ... 
doi:10.4018/ijswis.2016070102 fatcat:ks2hdn2wmze6vpvr6lrie5dkzy

Efficiently Mining Interesting Emerging Patterns [chapter]

Hongjian Fan, Kotagiri Ramamohanarao
2003 Lecture Notes in Computer Science  
We show that a relatively small set of EJEPs are sufficient for building accurate classifiers, instead of mining many JEPs.  ...  Real-world classification problems always contain noise. A reliable classifier should be tolerant to a reasonable level of noise.  ...  For example, data is constantly acquired through high-resolution remote sensing systems installed in NASA's Earth-observation satellites, global position systems and in-vehicle navigation systems (Han  ... 
doi:10.1007/978-3-540-45160-0_19 fatcat:5dx6cgvn6jeb7pxzckxsc3ov3e

An approach for pipelining nested collections in scientific workflows

Timothy M. McPhillips, Shawn Bowers
2005 SIGMOD record  
We are grateful to Scott Grafton of the Dartmouth Brain Imaging Center, and to Jens Voeckler, Doug Scheftner, Ewa Deelman, Carl Kesselman, and the entire Virtual Data System team for discussion, guidance  ...  These 18 people are providing a truly valuable service to readers, to authors, and to reviewers.  ...  For any frequent item a i , all the possible patterns contining only frequent items and a i can be obtained by following a i' s node link's , starting from a i 's head in the FP-tree header.Mining process  ... 
doi:10.1145/1084805.1084809 fatcat:sgtpcat7vzc3veb4dx2jgskpte

Community Detection and Mining in Social Media

Lei Tang, Huan Liu
2010 Synthesis Lectures on Data Mining and Knowledge Discovery  
It is an essential reading for students, researchers, and practitioners in disciplines and applications where social media is a key source of data that piques our curiosity to understand, manage, innovate  ...  The concepts, algorithms, and methods presented in this lecture can help harness the power of social media and support building socially-intelligent systems.  ...  Acknowledgments It is a pleasure to acknowledge many colleagues who made substantial contributions in various ways to this time-consuming book project.  ... 
doi:10.2200/s00298ed1v01y201009dmk003 fatcat:bxcd7hnfffdadgg6zx6mgiqloy

Incubation, insight, and creative problem solving: A unified theory and a connectionist model

Sébastien Hélie, Ron Sun
2010 Psychological review  
This article proposes a unified framework for understanding creative problem solving, namely, the explicit-implicit interaction theory.  ...  A computational implementation of the theory is developed based on the CLARION cognitive architecture and applied to the simulation of relevant human data.  ...  A more recent study of this phenomenon (Sun et al., 2001) used a more complex minefield navigation task.  ... 
doi:10.1037/a0019532 pmid:20658861 fatcat:f4uh7ro4rfhqdpdp3vzuhgddkq

Relational Patterns of Kampala, Uganda

Derwent Whittlesey, Edwin S. Munger
1952 Economic Geography  
She has been an invaluable companion through all s o r t s of African traveling and a thoughtful critic a s well.  ...  To all these people, and to many others who contributed in large o r small ways to this study, go my sincere thanks and appreciation.  ...  Any consideration of relations between Kampala and Addis Ababa a s nodes of political, economic, and cultural polarity o r of pan-Eastern-Africanism must take into account two major facts.  ... 
doi:10.2307/141205 fatcat:6fdiplyztjgrjipw7sj7igbsu4

Relational Patterns of Kampala, Uganda

S.J.K.B.
1952 African Affairs  
Any consideration of relations between Kampala and Addis Ababa a s nodes of political, economic, and cultural polarity o r of pan-Eastern-Africanism must take into account two major facts.  ...  Around Kampala the searching for information was largely carried on through interviews with responsible people.  ...  Factories, foundries, workshops, mills and mines occupy very little space, yet they can provide not only a livelihood for many thousands of Africans but also a means whereby, given training and the will  ... 
doi:10.1093/oxfordjournals.afraf.a094085 fatcat:omaybaad3fcihmbrh7aq4y6osu

An Introduction to Sensor Data Analytics [chapter]

Charu C. Aggarwal
2012 Managing and Mining Sensor Data  
For instance, if we are interested in finding The goal of the sensor data compression system is to approximate a sensor data stream by a set of functions.  ...  A WSN consists of a set of sensor nodes, which are small sensing devices with limited computational resources able to communicate with each other located in their radio range.  ...  Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation here on.  ... 
doi:10.1007/978-1-4614-6309-2_1 fatcat:pfbx566yfzgqpnjcuzonmxr23q
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