activity
20002020
most citedAnalyzing the Effect of Multi-task Learning for Biomedical Named Entity Recognition

2 citations · 4 across the 5 of their papers we have counts for

collaborators

7 papers

cs.CL2020★ 2 cited

Analyzing the Effect of Multi-task Learning for Biomedical Named Entity Recognition

Arda Akdemir, Tetsuo Shibuya

Developing high-performing systems for detecting biomedical named entities has major implications. State-of-the-art deep-learning based solutions for entity recognition often requi…

cs.CL2020★ 1 cited

Hierarchical Multi Task Learning with Subword Contextual Embeddings for Languages with Rich Morphology

Arda Akdemir, Tetsuo Shibuya, Tunga Güngör

Morphological information is important for many sequence labeling tasks in Natural Language Processing (NLP). Yet, existing approaches rely heavily on manual annotations or externa…

math.GT2019

Alexander polynomials of simple-ribbon knots

Kengo Kishimoto, Tetsuo Shibuya, Tatsuya Tsukamoto +1

In a previous paper, we introduced special types of fusions, so called simple-ribbon fusions on links. A knot obtained from the trivial knot by a finite sequence of simple-ribbon f…

cs.DS2018

Succinct Oblivious RAM

Taku Onodera, Tetsuo Shibuya

Reducing the database space overhead is critical in big-data processing. In this paper, we revisit oblivious RAM (ORAM) using big-data standard for the database space overhead. ORA…

cs.DS2013

Detecting Superbubbles in Assembly Graphs

Taku Onodera, Kunihiko Sadakane, Tetsuo Shibuya

We introduce a new concept of a subgraph class called a superbubble for analyzing assembly graphs, and propose an efficient algorithm for detecting it. Most assembly algorithms uti…

math.GT2009

Homotopy, Delta-equivalence and concordance for knots in the complement of a trivial link

Thomas Fleming, Tetsuo Shibuya, Tatsuya Tsukamoto +1

Link-homotopy and self Delta-equivalence are equivalence relations on links. It was shown by J. Milnor (resp. the last author) that Milnor invariants determine whether or not a lin…