Group Recommendation Systems Based on External Social-Trust Networks

<table class="fixed-width table-group" id="tab3"><tr><td><table class="table"><colgroup><col style="width:3.83em"/><col style="width:3.48em"/><col style="width:3.60em"/><col style="width:3.59em"/><col style="width:3.58em"/></colgroup><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center"> User1 </td><td class="align_center"> User2 </td><td class="align_center"> User3 </td><td class="align_center"> gpred </td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left"> <svg height="11.7065pt" id="M81" style="vertical-align:-3.18152pt" version="1.1" viewbox="-0.0498162 -8.52498 31.167 11.7065" width="31.167pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M303 0V28C221 34 213 39 213 125V525C213 610 221 616 303 622V650H38V622C120 616 128 610 128 525V125C128 40 120 34 38 28V0H303Z" id="g190-74"></path></g><g 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26V0H238V26C189 32 180 38 180 103V338C210 363 250 390 289 390C351 390 377 348 377 275V103C377 37 368 32 306 26V0H520V26C465 32 456 38 456 101V296C456 314 455 326 453 338C491 369 529 390 565 390C628 390 653 345 653 274V107C653 36 642 32 583 26V0H797Z" id="g190-110"></path></g><g transform="matrix(.0091,0,0,-0.0091,24.075,3.132)"><path d="M722 32C646 41 636 48 622 116L544 496L509 667L472 658L153 123C106 45 93 42 27 32L18 0H259L268 32C178 40 172 48 204 107L272 233H509C523 180 533 137 540 96C548 50 546 39 466 32L457 0H714L722 32ZM502 283H299L448 547H450L502 283Z" id="g50-66"></path></g></svg></td><td class="align_center"> 5</td><td class="align_center"> 1</td><td class="align_center"> 3</td><td class="align_center"> 3</td></tr><tr><td class="align_left"> <svg height="11.7065pt" id="M82" style="vertical-align:-3.18152pt" version="1.1" viewbox="-0.0498162 -8.52498 30.2262 11.7065" width="30.2262pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g 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449 550 437 529 423C504 407 475 389 446 366C425 418 382 449 334 449C303 449 279 437 253 421C222 403 201 385 180 371V452C135 432 85 419 41 411V388C99 379 102 374 102 310V103C102 38 93 32 27 26V0H238V26C189 32 180 38 180 103V338C210 363 250 390 289 390C351 390 377 348 377 275V103C377 37 368 32 306 26V0H520V26C465 32 456 38 456 101V296C456 314 455 326 453 338C491 369 529 390 565 390C628 390 653 345 653 274V107C653 36 642 32 583 26V0H797Z" id="g190-110"></path></g><g transform="matrix(.0091,0,0,-0.0091,24.075,3.132)"><path d="M598 511C598 627 497 650 401 650H141L131 618C219 611 222 606 210 538L130 119C117 43 108 39 25 32L18 0H236C324 0 396 5 456 30C531 59 585 119 585 193C585 285 520 331 428 351V353C529 373 598 423 598 511ZM502 508C502 418 431 368 330 368H263L298 559C303 584 308 595 317 600C329 608 345 612 369 612C428 612 502 595 502 508ZM483 197C483 95 404 39 309 39C225 39 206 58 219 139L256 330H317C395 330 483 301 483 197Z" id="g50-67"></path></g></svg></td><td class="align_center"> 4</td><td class="align_center"> 2</td><td class="align_center"> 3</td><td class="align_center"> 3</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Wireless Communications and Mobile Computing

tab3

Table 3

Table 3: Group Recommendation Systems Based on External Social-Trust Networks 