@inproceedings{oai:ipsj.ixsq.nii.ac.jp:00202380, author = {Thilina, Dissanayake and Takuya, Maekawa and Takahiro, Hara and Thilina, Dissanayake and Takuya, Maekawa and Takahiro, Hara}, book = {マルチメディア,分散協調とモバイルシンポジウム2019論文集}, month = {Jun}, note = {This paper presents a novel method to estimate a location label of a user using sensor data from his/her smart devices (smartwatch and smartphone) without using labeled training data collected in his/her environments. Specifically, we attempt to predict the user's location semantics, i.e., location classes such as restroom and meeting room. We propose a novel matrix operation method that automatically finds acceleration data motifs specific to a certain location class, e.g., brushing teeth action observed at bathroom, based on the idea of Gini coefficient. We evaluated the proposed method in 4 real environments., This paper presents a novel method to estimate a location label of a user using sensor data from his/her smart devices (smartwatch and smartphone) without using labeled training data collected in his/her environments. Specifically, we attempt to predict the user's location semantics, i.e., location classes such as restroom and meeting room. We propose a novel matrix operation method that automatically finds acceleration data motifs specific to a certain location class, e.g., brushing teeth action observed at bathroom, based on the idea of Gini coefficient. We evaluated the proposed method in 4 real environments.}, pages = {770--776}, publisher = {情報処理学会}, title = {Preliminary Investigation on Recognizing Environment-dependent Human Actions using a Fusion of Wi-Fi Based Place Clustering and Motif Detection from Accelerometer Data}, volume = {2019}, year = {2019} }