Table 2.

Data sets.

Data sets	Visual	Audio	Location	Physical activity	Physiological signals
NTCIRa-12 lifelog [75]	✓ (OMG Autographer)	—b	✓ (semantic)	✓ (smartphone)	—
NTCIR-13 lifelog [76]	✓ (Narrative Clip)	✓ (music listened)	✓ (semantic)	✓ (smartphone)	✓ (multiple sensors)
NTCIR-14 lifelog [77]	✓ (OMG Autographer)	✓ (music listened)	✓ (semantic)	✓ (smartphone)	✓ (multiple sensors)
EDUBc [78]	✓ (Narrative Clip)	—	—	—	—

^aNTCIR: National Institute of Informatics Testbeds and Community for Information Access Research.

^bThe data set does not contain this type of data.

^cEDUB: Egocentric Dataset of the University of Barcelona.