1{2 "record_id": "2580ac3af513b0ee5f2e19ed10bd991f2a8c8015",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Extracting real estate values of rental apartment floor plans using graph convolutional networks",7 "year": null,8 "doi": "",9 "country": "Japan",10 "region_city": "Osaka Prefecture",11 "sample_start": 2015,12 "sample_end": 2015,13 "property_type": "rental",14 "price_type": "rent",15 "data_source": "Nationwide rental listing database (approx. 5.33 million rental properties as of September 2015) with floor-plan images; family-oriented rental apartments in Osaka Prefecture, N=15,323",16 "document_type": "working_paper",17 "estimators": [18 "OLS"19 ],20 "spatial_method": "",21 "time_fe": false,22 "location_fe": false,23 "se_type": "unknown",24 "n_obs_total": 15323,25 "ai_methods": [26 "graph convolutional network (ResGatedGraphConv) on floor-plan access graphs producing a floor-plan value (FPV)",27 "semantic segmentation of floor-plan images",28 "integrated gradients"29 ],30 "notes": "Preprint without metadata in dump header (author Atsushi Takizawa, Osaka Metropolitan University; year/DOI not printed). Tables 5 and 6 report, for each regressor, the MEAN +/- SD of the partial regression coefficient and of the p-value across 10 semi-cross-validation folds — the SD is fold-to-fold dispersion, NOT a standard error; recorded se=null, p=mean p, confidence medium. Dependent variable: monthly rent without common expenses (Yen), level. Table 6 is captioned 'FPV model' but contains the graph-feature (GF) model regressors. Rows with p printed '<0.000' have p=null and note. Listed rents (asking)."31 },32 "models": [33 {34 "model_id": "T5-FPV",35 "table": "5",36 "column": "FPV model (mean over 10 folds)",37 "page": 12,38 "dep_var": "Rent (Yen/month)",39 "dep_transform": "level",40 "estimator": "OLS",41 "n_obs": 15323,42 "r2": null,43 "se_or_t_in_parentheses": "none",44 "sample_subset": "baseline attributes + GCN floor-plan value; mean adj. R2 across folds 0.79 (Fig. 11)"45 },46 {47 "model_id": "T6-GF",48 "table": "6",49 "column": "Graph-feature (GF) model (mean over 10 folds)",50 "page": 13,51 "dep_var": "Rent (Yen/month)",52 "dep_transform": "level",53 "estimator": "OLS",54 "n_obs": 15323,55 "r2": null,56 "se_or_t_in_parentheses": "none",57 "sample_subset": "baseline attributes + explicit access-graph features"58 }59 ],60 "coefficients": [61 {62 "model_id": "T5-FPV",63 "var_name_printed": "LandPrice",64 "taxonomy_id": "other",65 "x_transform": "level",66 "x_unit": "currency",67 "beta": 0.138,68 "se": null,69 "t": null,70 "p": null,71 "p_stars": "",72 "ci_lo": null,73 "ci_hi": null,74 "page": 12,75 "confidence": "medium",76 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 0.005 (not an SE). p printed as <0.000. Average land price in zip-code area, Yen/m2"77 },78 {79 "model_id": "T5-FPV",80 "var_name_printed": "Area",81 "taxonomy_id": "living_area",82 "x_transform": "level",83 "x_unit": "m2",84 "beta": 1044,85 "se": null,86 "t": null,87 "p": null,88 "p_stars": "",89 "ci_lo": null,90 "ci_hi": null,91 "page": 12,92 "confidence": "medium",93 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 50.83 (not an SE). p printed as <0.000."94 },95 {96 "model_id": "T5-FPV",97 "var_name_printed": "Year",98 "taxonomy_id": "age",99 "x_transform": "level",100 "x_unit": "years",101 "beta": 929.8,102 "se": null,103 "t": null,104 "p": null,105 "p_stars": "",106 "ci_lo": null,107 "ci_hi": null,108 "page": 12,109 "confidence": "medium",110 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 57.14 (not an SE). p printed as <0.000. Year of building completion (higher = newer)"111 },112 {113 "model_id": "T5-FPV",114 "var_name_printed": "FPV",115 "taxonomy_id": "multimodal_embedding",116 "x_transform": "level",117 "x_unit": "index",118 "beta": 599.0,119 "se": null,120 "t": null,121 "p": null,122 "p_stars": "",123 "ci_lo": null,124 "ci_hi": null,125 "page": 12,126 "confidence": "medium",127 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 90.81 (not an SE). p printed as <0.000. Floor-plan value learned by GCN from access graph of floor-plan image (deviation score, mean 50, SD 10)"128 },129 {130 "model_id": "T5-FPV",131 "var_name_printed": "L_Building",132 "taxonomy_id": "storeys",133 "x_transform": "level",134 "x_unit": "count",135 "beta": 1073,136 "se": null,137 "t": null,138 "p": null,139 "p_stars": "",140 "ci_lo": null,141 "ci_hi": null,142 "page": 12,143 "confidence": "medium",144 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 236.5 (not an SE). p printed as <0.000. Number of building floors"145 },146 {147 "model_id": "T5-FPV",148 "var_name_printed": "Passenger",149 "taxonomy_id": "other",150 "x_transform": "level",151 "x_unit": "count",152 "beta": 0.071,153 "se": null,154 "t": null,155 "p": null,156 "p_stars": "",157 "ci_lo": null,158 "ci_hi": null,159 "page": 12,160 "confidence": "medium",161 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 0.011 (not an SE). p printed as <0.000. Daily passengers at nearest station (2016)"162 },163 {164 "model_id": "T5-FPV",165 "var_name_printed": "L_Room",166 "taxonomy_id": "floor_level",167 "x_transform": "level",168 "x_unit": "count",169 "beta": 838.3,170 "se": null,171 "t": null,172 "p": 0.001,173 "p_stars": "",174 "ci_lo": null,175 "ci_hi": null,176 "page": 12,177 "confidence": "medium",178 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 368.1 (not an SE). p = mean across folds (SD 0.001). Floor of housing unit"179 },180 {181 "model_id": "T5-FPV",182 "var_name_printed": "Distance",183 "taxonomy_id": "transit_distance",184 "x_transform": "level",185 "x_unit": "m",186 "beta": -2.929,187 "se": null,188 "t": null,189 "p": 0.025,190 "p_stars": "",191 "ci_lo": null,192 "ci_hi": null,193 "page": 12,194 "confidence": "medium",195 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 0.963 (not an SE). p = mean across folds (SD 0.08). Distance to nearest station/bus stop, metres"196 },197 {198 "model_id": "T5-FPV",199 "var_name_printed": "Structure_RC",200 "taxonomy_id": "roof_materials",201 "x_transform": "binary",202 "x_unit": "binary",203 "beta": 3032,204 "se": null,205 "t": null,206 "p": 0.299,207 "p_stars": "",208 "ci_lo": null,209 "ci_hi": null,210 "page": 12,211 "confidence": "medium",212 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 2746 (not an SE). p = mean across folds (SD 0.189). Reinforced-concrete structure"213 },214 {215 "model_id": "T6-GF",216 "var_name_printed": "Land price",217 "taxonomy_id": "other",218 "x_transform": "level",219 "x_unit": "currency",220 "beta": 0.141,221 "se": null,222 "t": null,223 "p": null,224 "p_stars": "",225 "ci_lo": null,226 "ci_hi": null,227 "page": 13,228 "confidence": "medium",229 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 0.007 (not an SE). p printed as <0.000. Average land price in zip-code area, Yen/m2"230 },231 {232 "model_id": "T6-GF",233 "var_name_printed": "Area",234 "taxonomy_id": "living_area",235 "x_transform": "level",236 "x_unit": "m2",237 "beta": 1098,238 "se": null,239 "t": null,240 "p": null,241 "p_stars": "",242 "ci_lo": null,243 "ci_hi": null,244 "page": 13,245 "confidence": "medium",246 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 86.27 (not an SE). p printed as <0.000."247 },248 {249 "model_id": "T6-GF",250 "var_name_printed": "Year",251 "taxonomy_id": "age",252 "x_transform": "level",253 "x_unit": "years",254 "beta": 926.6,255 "se": null,256 "t": null,257 "p": null,258 "p_stars": "",259 "ci_lo": null,260 "ci_hi": null,261 "page": 13,262 "confidence": "medium",263 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 87.12 (not an SE). p printed as <0.000. Year of building completion (higher = newer)"264 },265 {266 "model_id": "T6-GF",267 "var_name_printed": "F_Building",268 "taxonomy_id": "storeys",269 "x_transform": "level",270 "x_unit": "count",271 "beta": 1299,272 "se": null,273 "t": null,274 "p": null,275 "p_stars": "",276 "ci_lo": null,277 "ci_hi": null,278 "page": 13,279 "confidence": "medium",280 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 329.8 (not an SE). p printed as <0.000. Number of building floors"281 },282 {283 "model_id": "T6-GF",284 "var_name_printed": "Passenger",285 "taxonomy_id": "other",286 "x_transform": "level",287 "x_unit": "count",288 "beta": 0.072,289 "se": null,290 "t": null,291 "p": null,292 "p_stars": "",293 "ci_lo": null,294 "ci_hi": null,295 "page": 13,296 "confidence": "medium",297 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 0.013 (not an SE). p printed as <0.000. Daily passengers at nearest station"298 },299 {300 "model_id": "T6-GF",301 "var_name_printed": "Distance",302 "taxonomy_id": "transit_distance",303 "x_transform": "level",304 "x_unit": "m",305 "beta": -3.322,306 "se": null,307 "t": null,308 "p": 0.019,309 "p_stars": "",310 "ci_lo": null,311 "ci_hi": null,312 "page": 13,313 "confidence": "medium",314 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 1.1 (not an SE). p = mean across folds (SD 0.061). Distance to nearest station/bus stop, metres"315 },316 {317 "model_id": "T6-GF",318 "var_name_printed": "F_Dwelling",319 "taxonomy_id": "floor_level",320 "x_transform": "level",321 "x_unit": "count",322 "beta": 808.1,323 "se": null,324 "t": null,325 "p": 0.058,326 "p_stars": "",327 "ci_lo": null,328 "ci_hi": null,329 "page": 13,330 "confidence": "medium",331 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 471.1 (not an SE). p = mean across folds (SD 0.155). Floor of housing unit"332 },333 {334 "model_id": "T6-GF",335 "var_name_printed": "RRA_jp",336 "taxonomy_id": "other",337 "x_transform": "level",338 "x_unit": "index",339 "beta": -3987,340 "se": null,341 "t": null,342 "p": 0.02,343 "p_stars": "",344 "ci_lo": null,345 "ci_hi": null,346 "page": 13,347 "confidence": "medium",348 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 1469 (not an SE). p = mean across folds (SD 0.038). Access-graph feature: real relative asymmetry of Japanese room"349 },350 {351 "model_id": "T6-GF",352 "var_name_printed": "Num_cl",353 "taxonomy_id": "storage",354 "x_transform": "level",355 "x_unit": "count",356 "beta": 1211,357 "se": null,358 "t": null,359 "p": 0.102,360 "p_stars": "",361 "ci_lo": null,362 "ci_hi": null,363 "page": 13,364 "confidence": "medium",365 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 614.0 (not an SE). p = mean across folds (SD 0.224). Number of closets (graph nodes)"366 },367 {368 "model_id": "T6-GF",369 "var_name_printed": "Num_bl",370 "taxonomy_id": "terrace_balcony",371 "x_transform": "level",372 "x_unit": "count",373 "beta": 1533,374 "se": null,375 "t": null,376 "p": 0.112,377 "p_stars": "",378 "ci_lo": null,379 "ci_hi": null,380 "page": 13,381 "confidence": "medium",382 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 690.4 (not an SE). p = mean across folds (SD 0.168). Number of balconies (graph nodes)"383 },384 {385 "model_id": "T6-GF",386 "var_name_printed": "RRA_wc",387 "taxonomy_id": "other",388 "x_transform": "level",389 "x_unit": "index",390 "beta": 4082,391 "se": null,392 "t": null,393 "p": 0.195,394 "p_stars": "",395 "ci_lo": null,396 "ci_hi": null,397 "page": 13,398 "confidence": "medium",399 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 2343 (not an SE). p = mean across folds (SD 0.231). Access-graph feature: relative asymmetry of toilet"400 },401 {402 "model_id": "T6-GF",403 "var_name_printed": "Num_edge",404 "taxonomy_id": "other",405 "x_transform": "level",406 "x_unit": "count",407 "beta": -568.9,408 "se": null,409 "t": null,410 "p": 0.148,411 "p_stars": "",412 "ci_lo": null,413 "ci_hi": null,414 "page": 13,415 "confidence": "medium",416 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 250.1 (not an SE). p = mean across folds (SD 0.187). Number of access-graph edges"417 },418 {419 "model_id": "T6-GF",420 "var_name_printed": "Depth_en",421 "taxonomy_id": "other",422 "x_transform": "level",423 "x_unit": "count",424 "beta": 631.6,425 "se": null,426 "t": null,427 "p": 0.428,428 "p_stars": "",429 "ci_lo": null,430 "ci_hi": null,431 "page": 13,432 "confidence": "medium",433 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 1077 (not an SE). p = mean across folds (SD 0.324). Depth of entrance in access graph"434 },435 {436 "model_id": "T6-GF",437 "var_name_printed": "RRA_bt",438 "taxonomy_id": "other",439 "x_transform": "level",440 "x_unit": "index",441 "beta": -2354,442 "se": null,443 "t": null,444 "p": 0.45,445 "p_stars": "",446 "ci_lo": null,447 "ci_hi": null,448 "page": 13,449 "confidence": "medium",450 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 3229 (not an SE). p = mean across folds (SD 0.333). Access-graph feature: relative asymmetry of bathroom"451 },452 {453 "model_id": "T6-GF",454 "var_name_printed": "Structure_RC",455 "taxonomy_id": "roof_materials",456 "x_transform": "binary",457 "x_unit": "binary",458 "beta": 2871,459 "se": null,460 "t": null,461 "p": 0.382,462 "p_stars": "",463 "ci_lo": null,464 "ci_hi": null,465 "page": 13,466 "confidence": "medium",467 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 3362 (not an SE). p = mean across folds (SD 0.259). Reinforced-concrete structure"468 },469 {470 "model_id": "T6-GF",471 "var_name_printed": "H*",472 "taxonomy_id": "other",473 "x_transform": "level",474 "x_unit": "index",475 "beta": -5471,476 "se": null,477 "t": null,478 "p": 0.593,479 "p_stars": "",480 "ci_lo": null,481 "ci_hi": null,482 "page": 13,483 "confidence": "medium",484 "notes": "Mean of coefficients across 10 CV folds; SD across folds = 8045 (not an SE). p = mean across folds (SD 0.383). Access-graph integration/entropy measure"485 }486 ]487}