E-Commerce

Ranking Companies Based on Multiple Social Networks Mined from the Web 89r ACapital Employee Sales PER PBR ROA ROE HitNumNumber1: Sony Hitachi Panasonic ENPLAS Sanyo AXELL Nagano NECJRC2: NEC Panasonic Sony Santec Meisei Keyence KKDI- SonyNikko Eng.3: Fujitsu Toshiba Toshiba FDK Tokki OptexFA TEAC Suzuki4: Sanyo Sony Fujitsu SK Elec. TEAC Canon AXELL ToshibaElec.5: Hitachi Fujitsu Canon NEC Wacom TEL Yaskawa Sharp6: Toshiba NEC Sharp Sanko Ibiden Lasertec Tabuchi FujitsuElec.7: Panasonic Canon Hitachi Fujitsu SPC Roland Fujitsu PioneerGeneralDG Component8: Sharp MitsubishiMitsubishi Seiko Japan Servo Hioki E.E. Canon Elec. CanonGiken9: Mitsubishi Sanyo NEC ALPS AXELL Wacom Shinko Mitsubishi10: Canon Nidec Sanyo Maxell Roland DG Cosel Konica RicohMinolta11: Elpida Seiko Ricoh Sony Yaskawa Ibiden TEL HitachiEpson12: Panasonic Ricoh Panasonic Anritsu Nidec Nidec- Epson PanasonicElec.Elec.READ Toyocom13: Ricoh Kyocera TEL Hosiden Nagano Fanuc NEC KyoceraJRC Ltd.14: Kyocera TDK Seiko UNIPULSE Tabuchi Optex Lasertec SanyoEpsonElec.15: Rohm Panasonic NEC Elec. Raytex Sysmex Syswave Ibiden PanasonicElec.Elec.16: NEC Elec. Minebea Pioneer Iwasaki Mimaki JEM Wacom Omron17: Oki Sharp Kyocera Miyakoshi Keyence Canon Elpida AXELL18: Murata Mabuchi Murata Wacom Foster Elec. CCS Nidec- YamatakeMotorREAD19: Fanuc Ltd. Mitsumi Casio ETA Elec. Micronics Noda Terasaki TDKElec.Japan Screen20: Minebea Pioneer Elpida Nishishiba Hamamatsu Techno Mimaki KELElec.MedicaTable 6. Top 20 companies ranked by attributes of companies in the electrical industry.As a baseline model, we use three centrality indices (i.e., degree centrality C d , closenesscentrality C c , and betweenness centrality C b ) on different networks (G cooc , G overlap , G capital ,G business , G shareholder , G age , G market ) as network rankings, and calculate the correlation betweennetwork rankings with each target ranking: Avg-In, Excellent, and Market-Cap. Forcomparison, we also rank companies according to previously described attributes (i.e., sevenfundamental indices and hit number of names on the Web), and calculate the correlationwith target rankings. Fig. 2 presents correlations (mean of three tries) of each networkranking as well as each attribute-based ranking with different target rankings on training