( selected publications -> DBLP )

56. Tomonari Masada.
Estimating Word Probabilities with Neural Networks in Latent Dirichlet Allocation.
in Proc. of PAKDD 2017 Workshops, pp. 129 - 137, May 2017.

55. Yuzana Win, Tomonari Masada.
Extraction of Proper Names from Myanmar Text Using Latent Dirichlet Allocation.
in Proc. of TAAI 2016, November 2016.
[53.7%; 36 / 67 submissions]

54. Tomonari Masada, Atsuhiro Takasu.
A Simple Stochastic Gradient Variational Bayes for the Correlated Topic Model.
in Proc. of APWeb 2016, Springer Lecture Notes in Computer Science 9932, pp. 424 - 428, September 2016.
[short paper]

53. Yuzana Win, Tomonari Masada.
Exploring OOV Words from Myanmar Text Using Maximal Substrings.
in Proc. of IIAI-AAI 2016, pp. 657 - 663, July 2016.

52. Tomonari Masada, Atsuhiro Takasu.
A Simple Stochastic Gradient Variational Bayes for Latent Dirichlet Allocation.
in Proc. of ICCSA 2016, Springer Lecture Notes in Computer Science 9789, pp. 232 - 245, July 2016.
[long paper]
manuscript for review

51. Tomonari Masada, Atsuhiro Takasu.
Traffic Speed Data Investigation with Hierarchical Modeling.
in Proc. of FDSE 2015, Springer Lecture Notes in Computer Science 9446, pp. 123 - 134, November 2015.
[long paper (26.1%; 20 long papers + 3 short papers / 88 submissions)]

50. Tomonari Masada, Atsuhiro Takasu.
Heuristic Pretraining for Topic Models.
in Proc. of IEA/AIE 2015, Springer Lecture Notes in Computer Science 9101, pp. 351 - 360, June 2015.
[long paper]

49. Yuzana Win, Tomonari Masada.
Exploring Technical Phrase Frames from Research Paper Titles.
in Proc. of MAW15, pp. 558 - 563, March 2015.

48. Bin Shen, Tomonari Masada.
Explaining prices by linking data: A pilot study on spatial regression analysis of apartment rents.
in Proc. of IEEE 3rd Global Conference on Consumer Electronics (GCCE), pp. 188 - 189, October 2014.
[poster paper]

47. Tomonari Masada, Atsuhiro Takasu.
ChronoSAGE: Diversifying Topic Modeling Chronologically.
in Proc. of WAIM 2014, Springer Lecture Notes in Computer Science 8485, pp. 476 - 479, June 2014.
[short paper (39%; 48 long papers + 32 short papers / 204 submissions)]
manuscript for review

46. Tomonari Masada, Atsuhiro Takasu.
A Topic Model for Traffic Speed Data Analysis.
in Proc. of IEA-AIE 2014, Springer Lecture Notes in Computer Science 8482, pp. 68 - 77, June 2014.
[long paper (36%; 106 accepted / 294 submissions)]

45. Tin Huynh, Atsuhiro Takasu, Tomonari Masada, Kiem Hoang.
Collaborator Recommendation for Isolated Researchers.
in Proc. of MAW14, pp. 639 - 644, May 2014.

44. Tomonari Masada, Atsuhiro Takasu.
Three-Way Nonparametric Bayesian Clustering for Handwritten Digit Image Classification.
in Proc. of ICONIP 2013, LNCS 8228, pp. 149 - 156, November 2013.

43. Tomonari Masada, Atsuhiro Takasu.
A Revised Inference for Correlated Topic Model.
in Proc. of ISNN 2013, LNCS 7952, pp. 445 - 454, July 2013.

42. Tomonari Masada, Atsuhiro Takasu.
Trimming Prototypes of Handwritten Digit Images with Subset Infinite Relational Model.
in Proc. of MUE 2013, LNEE 240, pp. 129 - 134, May 2013.
manuscript for review

41. Tomonari Masada, Atsuhiro Takasu.
Extraction of Topic Evolutions from References in Scientific Articles and Its GPU Acceleration.
in Proc. of CIKM 2012, pp.1522 - 1526, October-November 2012.
[short paper (146 full papers and 156 short papers / 1,088 submissions)]
manuscript for review,slide


40. Tomonari Masada, Atsuhiro Takasu, Yuichiro Shibata, Kiyoshi Oguri.
Clustering Documents with Maximal Substrings.
LNBIP 102, pp.19-34, January 2012.
[This is an extended version of paper #38.]

39. Tomonari Masada, Atsuhiro Takasu, Yuichiro Shibata, Kiyoshi Oguri.
Semi-supervised Bibliographic Element Segmentation with Latent Permutations.
in Proc. of the International Conference on Asia-Pacific Digital Libraries (ICADL 2011), LNCS 7008, pp.60-69, October 2011.
[full paper (25%; 34 full papers / 136 submissions)]
slide

38. Tomonari Masada, Yuichiro Shibata, Kiyoshi Oguri.
Documents as a Bag of Maximal Substrings: An Unsupervised Feature Extraction for Document Clustering.
in Proc. of the 13th International Conference on Enterprise Information Systems (ICEIS 2011), pp.5-13, June 2011.
[full paper (14.2%; 57 full papers / 402 submissions)]
Excellent Paper Award (2 papers / 57 full papers)

37. Tomonari Masada.
Unsupervised Segmentation of Bibliographic Elements with Latent Permutations.
International Journal of Organizational and Collective Intelligence (IJOCI), Vol.2, No.2, pp.49-62, 2011.
[an extended version of WISS 2010 paper]

36. Tomonari Masada, Atsuhiro Takasu, Yuichiro Shibata, Kiyoshi Oguri.
Steering Time-Dependent Estimation of Posteriors with Hyperparameter Indexing in Bayesian Topic Models.
in Proc. of the 15th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2011), LNAI 6634, Part I, pp.435-447, May 2011.
[long paper (9.7%; 32 long papers / 331 submissions)]

35. Tomonari Masada, Yuichiro Shibata, Kiyoshi Oguri.
Infinite Latent Process Decomposition.
in the Workshop Proceedings of the IEEE International Conference on Bioinformatics & Biomedicine (BIBM 2010), pp.810-811, December 2010.
[poster paper] (extended version: )
poster

34. Tomonari Masada, Yuichiro Shibata, Kiyoshi Oguri.
Unsupervised Segmentation of Bibliographic Elements with Latent Permutations.
in Proc. of the 1st International Workshop on Web Intelligent Systems and Services (WISS 2010), LNCS 6724, pp. 254-267, December 2010.
[direct acceptance]

33. MinHyeok Kim, Tomonari Masada, Atsuhiro Takasu, Daiji Fukagawa.
An Adaptive Weighting Scheme for Time-dependent Semantic Change Recognition.
2010 Summer Conference of the Institute of Electronics Engineers of Korea (IEEK), CFP-616, June 2010. (in Korean)

32. Tomonari Masada, Daiji Fukagawa, Atsuhiro Takasu, Yuichiro Shibata, Kiyoshi Oguri.
Modeling Topical Trends over Continuous Time with Priors.
in Proc. of the 7th International Symposium on Neural Networks (ISNN 2010), LNCS 6064, pp. 302-311, June 2010.
[full paper (38.7%; 229 full papers / 591 submissions)]

31. Tomonari Masada, Atsuhiro Takasu, Daiji Fukagawa, Tsuyoshi Hamada, Yuichiro Shibata, Kiyoshi Oguri.
Dynamic Hyperparameter Optimization for Bayesian Topical Trend Analysis.
in Proc. of the 18th ACM Conference on Information and Knowledge Management (CIKM 2009), pp.1831-1834, November 2009.
[short paper (34.7%; 123 full and 171 short papers / 847 submissions)]

30. Tomonari Masada, Tsuyoshi Hamada, Yuichiro Shibata, Kiyoshi Oguri.
Bayesian Multi-topic Microarray Analysis with Hyperparameter Reestimation.
in Proc. of the International Conference on Advanced Data Mining and Applications (ADMA 2009), LNAI 5678, pp.253-264, August 2009.
[full paper (12.1%; 39 full and 53 short papers / 322 submissions)]

29. Tomonari Masada, Tsuyoshi Hamada, Yuichiro Shibata, Kiyoshi Oguri.
Accelerating Collapsed Variational Bayesian Inference for Latent Dirichlet Allocation with Nvidia CUDA compatible devices.
in Proc. of the 22nd International Conference on Industrial, Engineering & Other Applications of Applied Intelligent Systems (IEA/AIE 2009),
LNAI 5579, pp.491-500, June 2009.
[regular paper (29.3%; 84 regular and 52 short papers / 286 submissions)] ... CLICK HERE!!!

28. Tomonari Masada, Atsuhiro Takasu, Tsuyoshi Hamada, Yuichiro Shibata, Kiyoshi Oguri.
Bag of Timestamps: A Simple and Efficient Bayesian Chronological Mining.
in Proc. of the Joint Conference on Asia-Pacific Web Conference (APWeb) and Web-Age Information Management (WAIM), LNCS 5446, pp.556-561, Apr 2009.
[short paper (36.0%; 42 full and 26 short papers / 189 submissions)]

27. Tomonari Masada.
Character Categorization via Latent Dirichlet Allocation for Kana Sequence Segmentation with Conditional Random Fields.
in Proc. of the 16th International Conference on Computers in Education (ICCE 2008), pp.167-168, Oct 2008.
[poster paper (57 full, 75 short and 73 poster papers / 270 submissions)]

26. Tomonari Masada, Senya Kiyasu, Sueharu Miyahara.
Unmixed Spectrum Clustering for Template Composition in Lung Sound Classification.
in Proc. of the 12th Pacific-Asia Conference (PAKDD 2008), LNCS 5012, pp.964-969, May 2008.
[short paper (36.2%; 37 long, 40 regular and 36 short papers / 312 submissions)]

25. Tomonari Masada,Senya Kiyasu, Sueharu Miyahara.
Feature Extraction by Spectral Unmixing and Robust Similarity Detection for Lung Sound Classification.
DBSJ Letters, Vol.6, No.4, pp.33-36, March 2008. (in Japanese)

24. Tomonari Masada, Senya Kiyasu, Sueharu Miyahara.
Comparing LDA with pLSI as a Dimensionality Reduction Method in Document Clustering.
in Proc. of the 3rd International Conference on Large-scale Knowledge Resources (LKR 2008), LNAI 4938, pp. 13-26, March 2008.
[regular paper (36.8%; 14 regular and 12 poster papers / 38 submissions)] (erratum)

23. Tomonari Masada, Senya Kiyasu, Sueharu Miyahara.
Feature Extraction by ICA and Clustering for Lung Sound Classification.
in Proc. of DBWeb'07, IPSJ Symposium series, Vol.2007, No.3, 5A-3, Nov. 2007. (in Japanese)

22. Tomonari Masada, Senya Kiyasu, Sueharu Miyahara.
Clustering Images with Multinomial Mixture Models.
in Proc. of the 8th International Symposium on Advanced Intelligent System (ISIS 2007), Sep. 2007.

21. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Clustering for Name Disambiguation in Author Citations.
DBSJ Letters, Vol.6, No.1, pp.1-4, June 2007. (in Japanese)

20. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Accuracy of Document Classification with Dirichlet Mixtures.
IPSJ Transactions on Databases, Vol.48, No.SIG11(TOD34), pp.14-26, June 2007. (in Japanese)

19. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Citation Data Clustering for Author Name Disambiguation.
in Proc. of the 2nd International Conference on Scalable Information Systems (INFOSCALE 2007), June 2007.
[full paper (16.0%; 41 full, 27 short and 41 work-in-progress papers / 256 submissions)]

18. Hiromi Wakaki, Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Query Refinement based on Topical Term Clustering.
in Proc. of the 8th Conference of RIAO (Recherche d'Information Assistee par Ordinateur), May & June 2007.

17. Quang Minh Vu, Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Using Web Directories for Similarity Measurement in Personal Name Disambiguation.
in Proc. of the 21st International Conference on Advanced Information Networking and Applications Workshops (AINAW'07),
Vol.1, pp.379-384, May 2007.

16. Quang Minh Vu, Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Personal Name Disambiguation in Web Search Using Knowledge Base.
DBSJ Letters Vol.5, No.4, pp.53-56, March 2007.

15. Quang Minh Vu, Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Disambiguation of People in Web Search Using a Knowledge Base.
in Proc. of International Conference on Research, Innovation & Vision for the Future Information & Communication Technologies (IEEE RIVF’07), pp.185-191, March 2007.

14. Quang Minh Vu, Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Using a Knowledge Base to Disambiguate Personal Name in Web Search Results.
in Proc. of the 22nd ACM Symposium on Applied Computing (SAC 2007), pp.839-843, March 2007.

13. Hiromi Wakaki, Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Topic-oriented Term Extraction and Term Clustering for Query Focusing.
IPSJ Transactions on Databases, Vol.47, No.SIG19(TOD32), pp.72-85, Dec. 2006. (in Japanese)

12. Hiromi Wakaki, Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
A New Measure for Query Disambiguation Using Term Co-occurrences.
in Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), LNCS 4224, pp. 904-911, Sep. 2006.

11. Hiromi Wakaki, Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Query Ambiguity Indication Using Infrequent Term Cooccurrences.
DBSJ Letters Vol.4, No.2, pp.41-44, Dec. 2005.

10. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Link-Based Clustering for Finding Subrelevant Web Pages.
in Proc. of the 3rd International Workshop on Web Document Analysis (WDA2005), Oct. 2005. (CD-ROM)

9. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Improving Web Search Performance with Hyperlink Information
IPSJ Transactions on Databases, Vol.46, No.SIG8(TOD26), pp.48-59, June 2005. (in Japanese)
[IPSJ paper award (Ronbun-sho)]

8. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Web Page Grouping Based on Parameterized Connectivity.
in Proc. of the 9th International Conference on Database Systems for Advanced Applications (DASFAA 2004), LNCS 2973, pp.374-380, March 2004.
[short paper (25%; 60 full papers and 8 short papers / 272 submissions)]

7. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Decomposing the Web Graph into Parameterized Connected Components.
IEICE Transactions on Information and Systems, Vol.E87-D, No.2, pp.380-387, Feb. 2004.

6. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Parameterized connectivity and its application to Web page grouping.
FIT2003, LD-006, Sep. 2003. (in Japanese)

5. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
A New Notion of Connectivity and its Application to Web Page Grouping.
DBSJ Letters, Vol.2, No.1, pp.3-6, May 2003. (in Japanese)

4. Tomonari Masada, Atsuhiro Takasu, Jun Adachi.
Grouping Web Pages Based on Parameterized Connectivity
DBSJ Letters, Vol.1, No.1, pp.47-50, Dec. 2002. (in Japanese)

3. Hiroshi Imai, Tomonari Masada, Fumihiko Takeuchi, Keiko Imai.
Enumerating Triangulations in General Dimensions.
International Journal of Computational Geometry & Applications, Vol.12, No.6, pp.455-480, Feb. & Apr. 2002.

2. Tomonari Masada, Hiroshi Imai, Keiko Imai.
Enumeration of Regular Triangulations.
in Proc. of the 12th annual ACM Symposium on Computational Geometry, pp.224-233, May 1996.

1. Tsuyoshi Ono, Yoshiaki Kyoda, Tomonari Masada, Kazuyoshi Hayase, Tetsuo Shibuya, Motoki Nakade, Mary Inaba, Hiroshi Imai, Keiko Imai, David Avis.
A Package for Triangulations.
in Proc. of the 12th annual ACM Symposium on Computational Geometry, V-17-V-18, May 1996. (Demo)