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• 2011

  A general framework for efficient clustering of large datasets based on activity detection

  Jin, X., Kim, S., Han, J., Cao, L. & Yin, Z., Feb 2011, In: Statistical Analysis and Data Mining. 4, 1, p. 11-29 19 p.

  Research output: Contribution to journal › Article › peer-review

  • Large Data Sets
  • Large dataset
  • Clustering
  • Framework
  • K-means

• Apollo: Towards factfinding in participatory sensing

  Le, H. K., Pasternack, J., Ahmadi, H., Gupta, M., Sun, Y., Abdelzaher, T., Han, J., Roth, D., Szymanski, B. & Adali, S., Jun 23 2011, Proceedings of the 10th ACM/IEEE International Conference on Information Processing in Sensor Networks, IPSN'11. p. 129-130 2 p. 5779079. (Proceedings of the 10th ACM/IEEE International Conference on Information Processing in Sensor Networks, IPSN'11).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Demonstrations
  • Tsunamis
  • Sensors
  • Application programming interfaces (API)
  • Data mining

• Applications of pattern discovery using sequential data mining

  Gupta, M. & Han, J., 2011, Pattern Discovery Using Sequence Data Mining: Applications and Studies. IGI Global, p. 1-23 23 p.

  Research output: Chapter in Book/Report/Conference proceeding › Chapter

  • telecommunication
  • Healthcare
  • event
  • education

• Approaches for pattern discovery using sequential data mining

  Gupta, M. & Han, J., 2011, Pattern Discovery Using Sequence Data Mining: Applications and Studies. IGI Global, p. 137-154 18 p.

  Research output: Chapter in Book/Report/Conference proceeding › Chapter

  • literature

• A spectral framework for detecting inconsistency across multi-source object relationships

  Gao, J., Fan, W., Turaga, D., Parthasarathy, S. & Han, J., 2011, Proceedings - 11th IEEE International Conference on Data Mining, ICDM 2011. p. 1050-1055 6 p. 6137313. (Proceedings - IEEE International Conference on Data Mining, ICDM).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Anomaly detection
  • Decomposition

• Authorship classification: A discriminative syntactic tree mining approach

  Kim, S., Kim, H., Weninger, T., Han, J. & Kim, H. D., Jan 1 2011, SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 455-464 10 p. (SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Syntactics
  • Computational complexity
  • Experiments

• Bidirectional mining of non-redundant recurrent rules from a sequence database

  Lo, D., Ding, B., Lucia & Han, J., Jun 6 2011, 2011 IEEE 27th International Conference on Data Engineering, ICDE 2011. p. 1043-1054 12 p. 5767848. (Proceedings - International Conference on Data Engineering).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Specifications

• Classification and novel class detection in concept-drifting data streams under time constraints

  Masud, M., Gao, J., Khan, L., Han, J. & Thuraisingham, B. M., May 5 2011, In: IEEE Transactions on Knowledge and Data Engineering. 23, 6, p. 859-874 16 p., 5453372.

  Research output: Contribution to journal › Article › peer-review

  • Labels
  • Labeling
  • Time delay
  • Classifiers

• Cloud-based malware detection for evolving data streams

  Masud, M. M., Al-Khateeb, T. M., Hamlen, K. W., Gao, J., Khan, L., Han, J. & Thuraisingham, B., Oct 2011, In: ACM Transactions on Management Information Systems. 2, 3, 16.

  Research output: Contribution to journal › Article › peer-review

  • Data Streams
  • Malware
  • Classifier
  • Feature Extraction
  • Feature extraction

• Co-author relationship prediction in heterogeneous bibliographic networks

  Sun, Y., Barber, R., Gupta, M., Aggarwal, C. C. & Han, J., Sep 19 2011, Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011. p. 121-128 8 p. 5992571. (Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Electric network analysis
  • Experiments

• Collection-based sparse label propagation and its application on social group suggestion from photos

  Yu, J., Jin, X., Han, J. & Luo, J., Feb 1 2011, In: ACM Transactions on Intelligent Systems and Technology. 2, 2, 12.

  Research output: Contribution to journal › Article › peer-review

  • Propagation
  • Labels
  • Classifiers
  • Feedback
  • Social Networks

• Collective topic modeling for heterogeneous networks

  Deng, H., Zhao, B. & Han, J., Jan 1 2011, SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 1109-1110 2 p. (SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Heterogeneous networks
  • Statistical Models

• Consensus extraction from heterogeneous detectors to improve performance over network traffic anomaly detection

  Gao, J., Fan, W., Turaga, D., Verscheure, O., Meng, X., Su, L. & Han, J., Aug 2 2011, 2011 Proceedings IEEE INFOCOM. p. 181-185 5 p. 5934982. (Proceedings - IEEE INFOCOM).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Anomaly detection
  • Detectors
  • Denial-of-service attack

• Construction and analysis of web-based computer science information networks

  Han, J., 2011, Rough Sets, Fuzzy Sets, Data Mining and Granular Computing - 13th International Conference, RSFDGrC 2011, Proceedings. p. 1-2 2 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6743 LNAI).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Web-based
  • Computer science
  • Computer Science
  • Schema
  • Electric network analysis

• Correlated multi-label feature selection

  Gu, Q., Li, Z. & Han, J., Dec 13 2011, CIKM'11 - Proceedings of the 2011 ACM International Conference on Information and Knowledge Management. p. 1087-1096 10 p. (International Conference on Information and Knowledge Management, Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Feature Selection
  • Cutting Planes
  • Learning Methods
  • Classifier
  • Minimax

• Demo: Distilling likely truth from noisy streaming data with Apollo

  Le, H., Wang, D., Ahmadi, H., Uddin, Y. S., Szymanski, B., Ganti, R., Abdelzaher, T., Fatemieh, O., Wang, H., Pasternack, J., Han, J., Roth, D., Adali, S. & Lei, H., Dec 19 2011, SenSys 2011 - Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems. p. 417-418 2 p. (SenSys 2011 - Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Demonstrations
  • Military applications
  • Sensors
  • Disasters

• Density-based shrinkage for revealing hierarchical and overlapping community structure in networks

  Huang, J., Sun, H., Han, J. & Feng, B., Jun 1 2011, In: Physica A: Statistical Mechanics and its Applications. 390, 11, p. 2160-2171 12 p.

  Research output: Contribution to journal › Article › peer-review

  • Community Structure
  • Shrinkage
  • Overlapping
  • Community
  • shrinkage

• Detecting recurring and novel classes in concept-drifting data streams

  Masud, M. M., Al-Khateeb, T. M., Khan, L., Aggarwal, C., Gao, J., Han, J. & Thuraisingham, B., 2011, Proceedings - 11th IEEE International Conference on Data Mining, ICDM 2011. p. 1176-1181 6 p. 6137334. (Proceedings - IEEE International Conference on Data Mining, ICDM).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Labeling
  • Data storage equipment

• Differentially private data cubes: Optimizing noise sources and consistency

  Ding, B., Winslett, M., Han, J. & Li, Z., Jul 11 2011, Proceedings of SIGMOD 2011 and PODS 2011. p. 217-228 12 p. (Proceedings of the ACM SIGMOD International Conference on Management of Data).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Wages
  • Polynomials

• Diversified trajectory pattern ranking in geo-tagged social media

  Yin, Z., Cao, L., Han, J., Luo, J. & Huang, T., Jan 1 2011, Proceedings of the 11th SIAM International Conference on Data Mining, SDM 2011. Society for Industrial and Applied Mathematics Publications, p. 980-991 12 p. (Proceedings of the 11th SIAM International Conference on Data Mining, SDM 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Trajectories
  • Websites

• DustDoctor: A self-healing sensor data collection system

  Khan, M. M. H., Ahmadi, H., Dogan, G., Govindan, K., Ganti, R., Brown, T., Han, J., Mohapatra, P. & Abdelzaher, T., Jun 23 2011, Proceedings of the 10th ACM/IEEE International Conference on Information Processing in Sensor Networks, IPSN'11. p. 127-128 2 p. 5779078. (Proceedings of the 10th ACM/IEEE International Conference on Information Processing in Sensor Networks, IPSN'11).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Flow graphs
  • Critical infrastructures
  • Sensor data fusion
  • Data fusion
  • Sensors

• Dynamic social influence analysis through time-dependent factor graphs

  Wang, C., Tang, J., Sun, J. & Han, J., 2011, Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011. p. 239-246 8 p. 5992608. (Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Industry
  • Experiments

• Efficient keyword-based search for top-K cells in text cube

  Ding, B., Zhao, B., Lin, C. X., Han, J., Zhai, C., Srivastava, A. & Oza, N. C., 2011, In: IEEE Transactions on Knowledge and Data Engineering. 23, 12, p. 1795-1810 16 p., 5710919.

  Research output: Contribution to journal › Article › peer-review

  • Query languages
  • Dynamic programming

• Efficient mining of top correlated patterns based on null-invariant measures

  Kim, S., Barsky, M. & Han, J., 2011, Machine Learning and Knowledge Discovery in Databases - European Conference, ECML PKDD 2011, Proceedings. PART 2 ed. p. 177-192 16 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6912 LNAI, no. PART 2).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Mining
  • Invariant Measure
  • Null
  • Large dataset
  • Association rules

• Efficient topological OLAP on information networks

  Qu, Q., Zhu, F., Yan, X., Han, J., Yu, P. S. & Li, H., 2011, Database Systems for Advanced Applications - 16th International Conference, DASFAA 2011, Proceedings. PART 1 ed. p. 389-403 15 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6587 LNCS, no. PART 1).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Online Analytical Processing
  • Query processing
  • Query Processing
  • Framework
  • Computational Techniques

• Evolutionary clustering and analysis of bibliographic networks

  Gupta, M., Aggarwal, C. C., Han, J. & Sun, Y., Sep 19 2011, Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011. p. 63-70 8 p. 5992586. (Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Heterogeneous networks

• Exposing complex bug-triggering conditions in distributed systems via graph mining

  Seo, E., Khan, M. M. H., Mohapatra, P., Han, J. & Abdelzaher, T., 2011, Proceedings - 2011 International Conference on Parallel Processing, ICPP 2011. p. 186-195 10 p. 6047187. (Proceedings of the International Conference on Parallel Processing).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Graph Mining
  • Distributed Systems
  • Hazards and race conditions
  • Scalability
  • Debugging

• Extracting general lists from web documents: A hybrid approach

  Fumarola, F., Weninger, T., Barber, R., Malerba, D. & Han, J., Jul 25 2011, Modern Approaches in Applied Intelligence - 24th International Conference on Industrial Engineering and Other Applications of Applied Intelligent Systems, IEA/AIE 2011, Proceedings. PART 1 ed. p. 285-294 10 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6703 LNAI, no. PART 1).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Hybrid Approach
  • Websites
  • Vision
  • HTML
  • Corpus

• FAST sequence mining based on sparse id-lists

  Salvemini, E., Fumarola, F., Malerba, D. & Han, J., Jul 14 2011, Foundations of Intelligent Systems - 19th International Symposium, ISMIS 2011, Proceedings. p. 316-325 10 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6804 LNAI).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Sequential Patterns
  • Mining
  • Large dataset
  • Medicine
  • World Wide Web

• Finding top-k shortest path distance changes in an evolutionary network

  Gupta, M., Aggarwal, C. C. & Han, J., Sep 19 2011, Advances in Spatial and Temporal Databases - 12th International Symposium, SSTD 2011, Proceedings. p. 130-148 19 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6849 LNCS).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Shortest path
  • Snapshot
  • Graph in graph theory
  • Structural properties
  • Vertex of a graph

• Foreword

  Han, J., Dec 1 2011, Social Network Mining, Analysis, and Research Trends: Techniques and Applications. IGI Global, p. xviii

  Research output: Chapter in Book/Report/Conference proceeding › Foreword/postscript

• Generalized fisher score for feature selection

  Gu, Q., Li, Z. & Han, J., Sep 29 2011, p. 266-273. 8 p.

  Research output: Contribution to conference › Paper › peer-review

  • Feature Selection
  • Feature extraction
  • Integer programming
  • Linear programming
  • Projected Gradient

• Geo-friends recommendation in GPS-based cyber-physical social network

  Yu, X., Pan, A., Tang, L. A., Li, Z. & Han, J., Sep 19 2011, Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011. p. 361-368 8 p. 5992600. (Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Global positioning system
  • Random processes
  • Merging
  • Mobile computing
  • Trajectories

• Geographical topic discovery and comparison

  Yin, Z., Cao, L., Han, J., Zhai, C. & Huang, T. S., Dec 1 2011, Proceedings of the 20th International Conference on World Wide Web, WWW 2011. p. 247-256 10 p. (Proceedings of the 20th International Conference on World Wide Web, WWW 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Global positioning system
  • Geographical distribution
  • Geographical regions
  • Sales
  • Websites

• Graph cube: On warehousing and OLAP multidimensional networks

  Zhao, P., Li, X., Xin, D. & Han, J., Jul 11 2011, Proceedings of SIGMOD 2011 and PODS 2011. p. 853-864 12 p. (Proceedings of the ACM SIGMOD International Conference on Management of Data).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Data warehouses
  • Query processing
  • Agglomeration

• Graph regularized nonnegative matrix factorization for data representation

  Cai, D., He, X., Han, J. & Huang, T. S., 2011, In: IEEE transactions on pattern analysis and machine intelligence. 33, 8, p. 1548-1560 13 p., 5674058.

  Research output: Contribution to journal › Article › peer-review

  • Factorization
  • Matrix Factorization
  • Information Retrieval
  • Graph in graph theory
  • Graph Algorithms

• Growing parallel paths for entity-page discovery

  Weninger, T., Fumarola, F., Lin, C. X., Barber, R., Han, J. & Malerba, D., Apr 29 2011, Proceedings of the 20th International Conference Companion on World Wide Web, WWW 2011. p. 145-146 2 p. (Proceedings of the 20th International Conference Companion on World Wide Web, WWW 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Websites

• Hierarchical aggregate classification with limited supervision for data reduction in wireless sensor networks

  Su, L., Gao, J., Yang, Y., Abdelzaher, T. F., Ding, B. & Han, J., Dec 19 2011, SenSys 2011 - Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems. p. 40-53 14 p. (SenSys 2011 - Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Data reduction
  • Wireless sensor networks
  • Sensor networks
  • Network protocols
  • Labels

• HyLiEn: A hybrid approach to general list extraction on the web

  Fumarola, F., Weninger, T., Barber, R., Malerba, D. & Han, J., Apr 29 2011, Proceedings of the 20th International Conference Companion on World Wide Web, WWW 2011. p. 35-36 2 p. (Proceedings of the 20th International Conference Companion on World Wide Web, WWW 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • HTML
  • Websites

• Is objective function the silver bullet? A case study of community detection algorithms on social networks

  Yang, Y., Sun, Y., Pandit, S., Chawla, N. V. & Han, J., Sep 19 2011, Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011. p. 394-397 4 p. 5992630. (Proceedings - 2011 International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Heterogeneous networks

• Joint feature selection and subspace learning

  Gu, Q., Li, Z. & Han, J., Dec 1 2011, IJCAI 2011 - 22nd International Joint Conference on Artificial Intelligence. p. 1294-1299 6 p. (IJCAI International Joint Conference on Artificial Intelligence).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Feature extraction
  • Face recognition
  • Machine learning
  • Set theory
  • Experiments

• Laplacian regularized Gaussian mixture model for data clustering

  He, X., Cai, D., Shao, Y., Bao, H. & Han, J., Jun 21 2011, In: IEEE Transactions on Knowledge and Data Engineering. 23, 9, p. 1406-1418 13 p., 5677520.

  Research output: Contribution to journal › Article › peer-review

  • Probability distributions
  • Gaussian distribution
  • Maximum likelihood
  • Statistical Models
  • Geometry

• Learning a Kernel for multi-task clustering

  Gu, Q., Li, Z. & Han, J., Nov 2 2011, AAAI-11 / IAAI-11 - Proceedings of the 25th AAAI Conference on Artificial Intelligence and the 23rd Innovative Applications of Artificial Intelligence Conference. p. 368-373 6 p. (Proceedings of the National Conference on Artificial Intelligence; vol. 1).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Hilbert spaces
  • Unsupervised learning
  • Linear programming
  • Experiments

• Learning online discussion structures by conditional random fields

  Wang, H., Wang, C., Zhai, C. X. & Han, J., Jan 1 2011, SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 435-444 10 p. (SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Statistical Models
  • Experiments

• Learning relevance from heterogeneous social network and its application in online targeting

  Wang, C., Raina, R., Fong, D., Zhou, D., Han, J. & Badros, G., Jan 1 2011, SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 655-664 10 p. (SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Marketing
  • Internet

• Learning search tasks in queries and web pages via graph regularization

  Ji, M., Yan, J., Gu, S., Han, J., He, X., Zhang, W. V. & Chen, Z., Jan 1 2011, SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 55-64 10 p. (SIGIR'11 - Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Websites
  • Search engines
  • Classifiers
  • Internet
  • Experiments

• LikeMiner: A system for mining the power of'like'in social media networks

  Jin, X., Wang, C., Luo, J., Yu, X. & Han, J., Sep 16 2011, Proceedings of the 17th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, KDD'11. p. 753-756 4 p. (Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Websites
  • Heterogeneous networks
  • Fans
  • Internet
  • Industry

• Linear discriminant dimensionality reduction

  Gu, Q., Li, Z. & Han, J., 2011, Machine Learning and Knowledge Discovery in Databases - European Conference, ECML PKDD 2011, Proceedings. PART 1 ed. p. 549-564 16 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6911 LNAI, no. PART 1).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Dimensionality Reduction
  • Discriminant analysis
  • Discriminant
  • Discriminant Analysis
  • Feature Selection

• Locally consistent concept factorization for document clustering

  Cai, D., He, X. & Han, J., 2011, In: IEEE Transactions on Knowledge and Data Engineering. 23, 6, p. 902-913 12 p., 5567104.

  Research output: Contribution to journal › Article › peer-review

  • Factorization
  • Geometry

• LPTA: A probabilistic model for latent periodic topic analysis

  Yin, Z., Cao, L., Han, J., Zhai, C. & Huang, T., Dec 1 2011, Proceedings - 11th IEEE International Conference on Data Mining, ICDM 2011. p. 904-913 10 p. 6137295. (Proceedings - IEEE International Conference on Data Mining, ICDM).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Statistical Models
  • Technical presentations
  • Sales
  • Time series
  • Websites